cvs update pthreads

1 files changed, 4973 insertions, 4821 deletions

diff --git a/pthreads/ChangeLog b/pthreads/ChangeLog
index b85d9f9b8..32e7a06a4 100644
--- a/pthreads/ChangeLog
+++ b/pthreads/ChangeLog
@@ -1,4821 +1,4973 @@
-2006-12-20  Ross Johnson <ross.johnson@homemail.com.au>
-
-        * sem_destroy.c: Fix the race involving invalidation of the sema;
-        fix incorrect return of EBUSY resulting from the mutex trylock
-        on the private mutex guard.
-        * sem_wait.c: Add check for invalid sem_t after acquiring the
-        sem_t state guard mutex and before affecting changes to sema state.
-        * sem_trywait.c: Likewise.
-        * sem_timedwait.c: Likewise.
-        * sem_getvalue.c: Likewise.
-        * sem_post.c: Similar.
-        * sem_post_multiple.c: Likewise.
-        * sem_init.c: Set max Win32 semaphore count to SEM_VALUE_MAX (was
-        _POSIX_SEM_VALUE_MAX, which is a lower value - the minimum).
-
-	* pthread_win32_attach_detach_np.c (pthread_win32_process_attach_np):
-	Load COREDLL.DLL under WINCE to check existence of
-	InterlockedCompareExchange() routine. This used to be done to test
-	for TryEnterCriticalSection() but was removed when this was no
-	longer needed.
-
-2006-01-25  Prashant Thakre <prashant.thakre at gmail.com>
-
-	* pthread_cancel.c: Added _M_IA64 register context support.
-
-2005-05-13  Ross Johnson  <ross at callisto.canberra.edu.au>
-
-	* pthread_kill.c (pthread_kill): Remove check for Win32 thread
-	priority (to confirm HANDLE validity). Useless since thread HANDLEs
-	a not recycle-unique.
-
-2005-05-30  Vladimir Kliatchko  <vladimir at kliatchko.com>
-
-	* pthread_once.c: Re-implement using an MCS queue-based lock. The form
-	of pthread_once is as proposed by Alexander Terekhov (see entry of
-	2005-03-13). The MCS lock implementation does not require a unique
-	'name' to identify the lock between threads. Attempts to get the Event
-	or Semaphore based versions of pthread_once to a satisfactory level
-	of robustness have thus far failed. The last problem (avoiding races
-	involving non recycle-unique Win32 HANDLEs) was giving everyone
-	grey hair trying to solve it.
-
-	* ptw32_MCS_lock.c: New MCS queue-based lock implementation. These
-	locks are efficient: they have very low overhead in the uncontended case;
-	are efficient in contention and minimise cache-coherence updates in
-	managing the user level FIFO queue; do not require an ABI change in the
-	library.
-
-2005-05-27  Alexander Gottwald <alexander.gottwald at s1999.tu-chemnitz.de>
-
-	* pthread.h: Some things, like HANDLE, were only defined if
-	PTW32_LEVEL was >= 3. They should always be defined.
-
-2005-05-25  Vladimir Kliatchko  <vladimir at kliatchko.com>
-
-	* pthread_once.c: Eliminate all priority operations and other
-	complexity by replacing the event with a semaphore. The advantage
-	of the change is the ability to release just one waiter if the
-	init_routine thread is cancelled yet still release all waiters when
-	done. Simplify once_control state checks to improve efficiency
-	further.
-
-2005-05-24  Mikael Magnusson  <mikaelmagnusson at glocalnet.net>
-
-	* GNUmakefile: Patched to allow cross-compile with mingw32 on Linux.
-	It uses macros instead of referencing dlltool, gcc and g++ directly;
-	added a call to ranlib. For example the GC static library can be
-	built with:
-	make CC=i586-mingw32msvc-gcc RC=i586-mingw32msvc-windres \
-	RANLIB=i586-mingw32msvc-ranlib clean GC-static
-
-2005-05-13  Ross Johnson  <ross at callisto.canberra.edu.au>
-
-	* pthread_win32_attach_detach_np.c (pthread_win32_thread_detach_np):
-	Move on-exit-only stuff from ptw32_threadDestroy() to here.
-	* ptw32_threadDestroy.c: It's purpose is now only to reclaim thread
-	resources for detached threads, or via pthread_join() or
-	pthread_detach() on joinable threads.
-	* ptw32_threadStart.c: Calling user destruct routines has moved to
-	pthread_win32_thread_detach_np(); call pthread_win32_thread_detach_np()
-	directly if statically linking, otherwise do so via dllMain; store
-	thread return value in thread struct for all cases, including
-	cancellation and exception exits; thread abnormal exits	go via
-	pthread_win32_thread_detach_np.
-	* pthread_join.c (pthread_join): Don't try to get return code from
-	Win32 thread - always get it from he thread struct.
-	* pthread_detach.c (pthread_detach): reduce extent of the thread
-	existence check since we now don't care if the Win32 thread HANDLE has
-	been closed; reclaim thread resources if the thread has exited already.
-	* ptw32_throw.c (ptw32_throw): For Win32 threads that are not implicit,
-	only Call thread cleanup if statically linking, otherwise leave it to
-	dllMain.
-	* sem_post.c (_POSIX_SEM_VALUE_MAX): Change to SEM_VALUE_MAX.
-	* sem_post_multiple.c: Likewise.
-	* sem_init.c: Likewise.
-
-2005-05-10  Ross Johnson  <ross at callisto.canberra.edu.au>
-
-	* pthread_join.c (pthread_join): Add missing check for thread ID
-	reference count in thread existence test; reduce extent of the
-	existence test since we don't care if the Win32 thread HANDLE has
-	been closed.
-
-2005-05-09  Ross Johnson  <ross at callisto.canberra.edu.au>
-
-	* ptw32_callUserDestroyRoutines.c: Run destructor process (i.e.
-	loop over all keys calling destructors) up to
-	PTHREAD_DESTRUCTOR_ITERATIONS times if TSD value isn't NULL yet;
-	modify assoc management.
-	* pthread_key_delete.c: Modify assoc management.
-	* ptw32_tkAssocDestroy.c: Fix error in assoc removal from chains.
-	* pthread.h
-	(_POSIX_THREAD_DESTRUCTOR_ITERATIONS): Define to value specified by
-	POSIX.
-	(_POSIX_THREAD_KEYS_MAX): Define to value specified by POSIX.
-	(PTHREAD_KEYS_MAX): Redefine [upward] to minimum required by POSIX.
-	(SEM_NSEMS_MAX): Define to implementation value.
-	(SEM_VALUE_MAX): Define to implementation value.
-	(_POSIX_SEM_NSEMS_MAX): Redefine to value specified by POSIX.
-	(_POSIX_SEM_VALUE_MAX): Redefine to value specified by POSIX.
-
-2005-05-06  Ross Johnson  <ross at callisto.canberra.edu.au>
-
-	* signal.c (sigwait): Add a cancellation point to this otherwise
-	no-op.
-	* sem_init.c (sem_init): Check for and return ERANGE error.
-	* sem_post.c (sem_post): Likewise.
-	* sem_post_multiple.c (sem_post_multiple): Likewise.
-	* manual (directory): Added; see ChangeLog inside.
-
-2005-05-02  Ross Johnson  <ross at callisto.canberra.edu.au>
-
-	* implement.h (struct pthread_key_t_): Change threadsLock to keyLock
-	so as not to be confused with the per thread lock 'threadlock';
-	change all references to it.
-	* implement.h (struct ThreadKeyAssoc): Remove lock; add prevKey
-	and prevThread pointers; re-implemented all routines that use this
-	struct. The effect of this is to save one handle per association,
-	which could potentially equal the number of keys multiplied by the
-	number of threads, accumulating over time - and to free the
-	association memory as soon as it is no longer referenced by either
-	the key or the thread. Previously, the handle and memory were
-	released only after BOTH key and thread no longer referenced the
-	association. That is, often no association resources were released
-	until the process itself exited. In addition, at least one race
-	condition has been removed - where two threads could attempt to
-	release the association resources simultaneously - one via
-	ptw32_callUserDestroyRoutines and the other via
-	pthread_key_delete.
-	- thanks to Richard Hughes at Aculab for discovering the problem.
-	* pthread_key_create.c: See above.
-	* pthread_key_delete.c: See above.
-	* pthread_setspecific.c: See above.
-	* ptw32_callUserDestroyRoutines.c: See above.
-	* ptw32_tkAssocCreate.c: See above.
-	* ptw32_tkAssocDestroy.c: See above.
-
-2005-04-27  Ross Johnson  <ross at callisto.canberra.edu.au>
-
-	* sem_wait.c (ptw32_sem_wait_cleanup): after cancellation re-attempt
-	to acquire the semaphore to avoid a race with a late sem_post.
-	* sem_timedwait.c: Modify comments.
-
-2005-04-25  Ross Johnson  <ross at callisto.canberra.edu.au>
-
-	* ptw32_relmillisecs.c: New module; converts future abstime to 
-	milliseconds relative to 'now'.
-	* pthread_mutex_timedlock.c: Use new ptw32_relmillisecs routine in
-	place of internal code; remove the NEED_SEM code - this routine is now
-	implemented for builds that define NEED_SEM (WinCE etc)
-	* sem_timedwait.c: Likewise; after timeout or cancellation,
-	re-attempt to acquire the semaphore in case one has been posted since
-	the timeout/cancel occurred. Thanks to Stefan Mueller.
-	* Makefile: Add ptw32_relmillisecs.c module; remove
-	ptw32_{in,de}crease_semaphore.c modules.
-	* GNUmakefile: Likewise.
-	* Bmakefile: Likewise.
-
-	* sem_init.c: Re-write the NEED_SEM code to be consistent with the
-	non-NEED_SEM code, but retaining use of an event in place of the w32 sema
-	for w32 systems that don't include semaphores (WinCE);
-	the NEED_SEM versions of semaphores has been broken for a long time but is
-	now fixed and supports all of the same routines as the non-NEED_SEM case.
-	* sem_destroy.c: Likewise.
-	* sem_wait.c: Likewise.
-	* sem_post.c: Likewise.
-	* sem_post_multple.c: Likewise.
-	* implement.h: Likewise.
-	* sem_timedwait.c: Likewise; this routine is now
-	implemented for builds that define NEED_SEM (WinCE etc).
-	* sem_trywait.c: Likewise.
-	* sem_getvalue.c: Likewise.
-
-	* pthread_once.c: Yet more changes, reverting closer to Gottlob Frege's
-	first design, but retaining cancellation, priority boosting, and adding
-	preservation of W32 error codes to make pthread_once transparent to
-	GetLastError.
-
-2005-04-11  Ross Johnson  <ross at callisto.canberra.edu.au>
-
-	* pthread_once.c (pthread_once): Added priority boosting to
-	solve starvation problem after once_routine cancellation.
-	See notes in file.
-
-2005-04-06  Kevin Lussier <Kevin at codegreennetworks.com>
-
-	* Makefile: Added debug targets for all versions of the library.
-
-2005-04-01  Ross Johnson  <ross at callisto.canberra.edu.au>
-
-	* GNUmakefile: Add target to build libpthreadGC1.a as a static link
-	library.
-	* Makefile: Likewise for pthreadGC1.lib.
-
-2005-04-01  Kevin Lussier <Kevin at codegreennetworks.com>
-
-	* sem_timedwait.c (sem_timedwait): Increase size of temp variables to
-	avoid int overflows for large timeout values.
-	* implement.h (int64_t): Include or define.
-
-2005-03-31   Dimitar Panayotov <develop at mail.bg>^M
-
-	* pthread.h: Fix conditional defines for static linking.
-	* sched.h: Liekwise.
-	* semaphore.h: Likewise.
-	* dll.c (PTW32_STATIC_LIB): Module is conditionally included
-	in the build.
-
-2005-03-16  Ross Johnson  <ross at callisto.canberra.edu.au>^M
-
-	* pthread_setcancelstate.c: Undo the last change.
-
-2005-03-16  Ross Johnson  <ross at callisto.canberra.edu.au>^M
-
-	* pthread_setcancelstate.c: Don't check for an async cancel event
-	if the library is using alertable async cancel..
-
-2005-03-14  Ross Johnson  <ross at callisto.canberra.edu.au>
-
-	* pthread_once.c (pthread_once): Downgrade interlocked operations to simple
-	memory operations where these are protected by the critical section; edit
-	comments.
-
-2005-03-13  Ross Johnson  <rpj at callisto.canberra.edu.au>
-
-	* pthread_once.c (pthread_once): Completely redesigned; a change was
-	required to the ABI (pthread_once_t_), and resulting in a version
-	compatibility index increment.
-
-	NOTES:
-	The design (based on pseudo code contributed by Gottlob Frege) avoids
-	creating a kernel object if there is no contention. See URL for details:-
-	http://sources.redhat.com/ml/pthreads-win32/2005/msg00029.html
-	This uses late initialisation similar to the technique already used for
-	pthreads-win32 mutexes and semaphores (from Alexander Terekhov).
-
-	The subsequent cancelation cleanup additions (by rpj) could not be implemented
-	without sacrificing some of the efficiency in Gottlob's design. In particular,
-	although each once_control uses it's own event to block on, a global CS is
-	required to manage it - since the event must be either re-usable or
-	re-creatable under cancelation. This is not needed in the non-cancelable
-	design because it is able to mark the event as closed (forever).
-
-	When uncontested, a CS operation is equivalent to an Interlocked operation
-	in speed. So, in the final design with cancelability, an uncontested
-	once_control operation involves a minimum of five interlocked operations
-	(including the LeaveCS operation).
-	
-	ALTERNATIVES:
-	An alternative design from Alexander Terekhov proposed using a named mutex,
-	as sketched below:-
-
-	  if (!once_control) { // May be in TLS
-	    named_mutex::guard guard(&once_control2);
-	      if (!once_control2) {
-	         <init>
-	         once_control2 = true;
-	      }
-	    once_control = true;
-	  }
-	
-	A more detailed description of this can be found here:-
-	http://groups.yahoo.com/group/boost/message/15442
-
-	[Although the definition of a suitable PTHREAD_ONCE_INIT precludes use of the
-	TLS located flag, this is not critical.]
-	
-	There are three primary concerns though:-
-	1) The [named] mutex is 'created' even in the uncontended case.
-	2) A system wide unique name must be generated.
-	3) Win32 mutexes are VERY slow even in the uncontended 	case. An uncontested
-	Win32 mutex lock operation can be 50 (or more) times slower than an
-	uncontested EnterCS operation.
-
-	Ultimately, the named mutex trick is making use of the global locks maintained
-	by the kernel.
-
-	* pthread.h (pthread_once_t_): One flag and an event HANDLE added.
-	(PTHREAD_ONCE_INIT): Additional values included.
-
-2005-03-08  Ross Johnson  <rpj at callisto.canberra.edu.au>
-
-	* pthread_once.c (pthread_once): Redesigned to elliminate potential
-	starvation problem.
-	- reported by Gottlob Frege  <gottlobfrege at gmail.com>
-
-	* ptw32_threadDestroy.c (ptw32_threadDestroy): Implicit threads were
-	not closing their Win32 thread duplicate handle.
-	- reported by Dmitrii Semii <bogolt at gmail.com>
-
-2005-01-25  Ralf Kubis  <RKubis at mc.com>
-
-	* Attempted acquisition of recursive mutex was causing waiting
-	threads to not be woken when the mutex is released.
-
-	* GNUmakefile (GCE): Generate correct version resource comments.
-
-2005-01-01  Konstantin Voronkov  <beowinkle at yahoo.com>
-
-	* pthread_mutex_lock.c (pthread_mutex_lock): The new atomic exchange
-	mutex algorithm is known to allow a thread to steal the lock off
-	FIFO waiting threads. The next waiting FIFO thread gets a spurious
-	wake-up and must attempt to re-acquire the lock. The woken thread
-	was setting itself as the mutex's owner before the re-acquisition.
-
-2004-11-22  Ross Johnson  <rpj at callisto.canberra.edu.au>
-
-	* pthread_cond_wait.c (ptw32_cond_wait_cleanup): Undo change
-	from 2004-11-02.
-	* Makefile (DLL_VER): Added for DLL naming suffix - see README.
-	* GNUmakefile (DLL_VER): Likewise.
-	* Wmakefile (DLL_VER): Likewise.
-	* Bmakefile (DLL_VER): Likewise.
-	* pthread.dsw (version.rc): Added to MSVS workspace.
-
-2004-11-20  Boudewijn Dekker  <b.dekker at ellipsis.nl>
-
-	* pthread_getspecific.c (pthread_getspecific): Check for
-	invalid (NULL) key argument.
-
-2004-11-19  Ross Johnson  <rpj at callisto.canberra.edu.au>
-
-	* config.h (PTW32_THREAD_ID_REUSE_INCREMENT): Added to allow
-	building the library for either unique thread IDs like Solaris
-	or non-unique thread IDs like Linux; allows application developers
-	to override the library's default insensitivity to some apps
-	that may not be strictly POSIX compliant.
-	* version.rc: New resource module to encode version information
-	within the DLL.
-	* pthread.h: Added PTW32_VERSION* defines and grouped sections
-	required by resource compiler together; bulk of file is skipped
-	if RC_INVOKED. Defined some error numbers and other names for
-	Borland compiler.
-
-2004-11-02  Ross Johnson  <rpj at callisto.canberra.edu.au>
-
-	* pthread_cond_wait.c (ptw32_cond_wait_cleanup): Lock CV mutex at
-	start of cleanup handler rather than at the end.
-	* implement.h (PTW32_THREAD_REUSE_EMPTY): Renamed from *_BOTTOM.
-	(ptw32_threadReuseBottom): New global variable.
-	* global.c (ptw32_threadReuseBottom): Declare new variable.
-	* ptw32_reuse.c (ptw32_reuse): Change reuse LIFO stack to LILO queue
-	to more evenly distribute use of reusable thread IDs; use renamed
-	PTW32_THREAD_REUSE_EMPTY.
-	* ptw32_processTerminate.c (ptw2_processTerminate): Use renamed
-	PTW32_THREAD_REUSE_EMPTY.
-
-2004-10-31  Ross Johnson  <rpj at callisto.canberra.edu.au>
-
-	* implement.h (PThreadState): Add new state value
-	'PThreadStateCancelPending'.
-	* pthread_testcancel.c (pthread_testcancel): Use new thread
-	'PThreadStateCancelPending' state as short cut to avoid entering
-	kernel space via WaitForSingleObject() call. This was obviated
-	by user space sema acquisition in sem_wait() and sem_timedwait(),
-	which are also cancelation points. A call to pthread_testcancel()
-	was required, which introduced a kernel call, effectively nullifying
-	any gains made by the user space sem acquisition checks.
-	* pthread_cancel.c (pthread_cancel): Set new thread
-	'PThreadStateCancelPending' state.
-
-2004-10-29  Ross Johnson  <rpj at callisto.canberra.edu.au>
-
-	* implement.h (pthread_t): Renamed to ptw32_thread_t; struct contains
-	all thread state.
-	* pthread.h (ptw32_handle_t): New general purpose struct to serve
-	as a handle for various reusable object IDs - currently only used
-	by pthread_t; contains a pointer to ptw32_thread_t (thread state)
-	and a general purpose uint for use as a reuse counter or flags etc.
-	(pthread_t): typedef'ed to ptw32_handle_t; the uint is the reuse
-	counter that allows the library to maintain unique POSIX thread IDs.
-	When the pthread struct reuse stack was introduced, threads would
-	often acquire an identical ID to a previously destroyed thread. The
-	same was true for the pre-reuse stack library, by virtue of pthread_t
-	being the address of the thread struct. The new pthread_t retains
-	the reuse stack but provides virtually unique thread IDs.
-	* sem_wait.c (ptw32_sem_wait_cleanup): New routine used for
-	cancelation cleanup.
-	* sem_timedwait.c (ptw32_sem_timedwait_cleanup): Likewise.
-
-2004-10-22  Ross Johnson  <rpj at callisto.canberra.edu.au>
-
-	* sem_init.c (sem_init): Introduce a 'lock' element in order to
-	replace the interlocked operations with conventional serialisation.
-	This is needed in order to be able to atomically modify the sema
-	value and perform Win32 sema release operations. Win32 semaphores are
-	used instead of events in order to support efficient multiple posting.
-	If the whole modify/release isn't atomic, a race between
-	sem_timedwait() and sem_post() could result in a release when there is
-	no waiting semaphore, which would cause too many threads to proceed.
-	* sem_wait.c (sem_wait): Use new 'lock'element.
-	* sem_timedwait.c (sem_timedwait): Likewise.
-	* sem_trywait.c (sem_trywait): Likewise.
-	* sem_post.c (sem_post): Likewise.
-	* sem_post_multiple.c (sem_post_multiple): Likewise.
-	* sem_getvalue.c (sem_getvalue): Likewise.
-	* ptw32_semwait.c (ptw32_semwait): Likewise.
-	* sem_destroy.c (sem_destroy): Likewise; also tightened the conditions
-	for semaphore destruction; in particular, a semaphore will not be
-	destroyed if it has waiters.
-	* sem_timedwait.c (sem_timedwait): Added cancel cleanup handler to
-	restore sema value when cancelled.
-	* sem_wait.c (sem_wait): Likewise.
-
-2004-10-21  Ross Johnson  <rpj at callisto.canberra.edu.au>
-
-	* pthread_mutex_unlock.c (pthread_mutex_unlock): Must use PulseEvent()
-	rather than SetEvent() to reset the event if there are no waiters.
-
-2004-10-19  Ross Johnson  <rpj at callisto.canberra.edu.au>
-
-	* sem_init.c (sem_init): New semaphore model based on the same idea
-	as mutexes, i.e. user space interlocked check to avoid 
-	unnecessarily entering kernel space. Wraps the Win32 semaphore and
-	keeps it's own counter. Although the motivation to do this has existed
-	for a long time, credit goes to Alexander Terekhov for providing
-	the logic. I have deviated slightly from AT's logic to add the waiters
-	count, which has made the code more complicated by adding cancelation
-	cleanup. This also appears to have broken the VCE (C++ EH) version of
-	the library (the same problem as previously reported - see BUGS #2),
-	only apparently not fixable using the usual workaround, nor by turning
-	all optimisation off. The GCE version works fine, so it is presumed to
-	be a bug in MSVC++ 6.0. The cancelation exception is thrown and caught
-	correctly, but the cleanup class destructor is never called. The failing
-	test is tests\semaphore4.c.
-	* sem_wait.c (sem_wait): Implemented user space check model.
-	* sem_post.c (sem_post): Likewise.
-	* sem_trywait.c (sem_trywait): Likewise.
-	* sem_timedwait.c (sem_timedwait): Likewise.
-	* sem_post_multiple.c (sem_post_multiple): Likewise.
-	* sem_getvalue.c (sem_getvalue): Likewise.
-	* ptw32_semwait.c (ptw32_semwait): Likewise.
-	* implement.h (sem_t_): Add counter element.
-
-2004-10-15  Ross Johnson  <rpj at callisto.canberra.edu.au>
-
-	* implement.h (pthread_mutex_t_): Use an event in place of
-	the POSIX semaphore.
-	* pthread_mutex_init.c: Create the event; remove semaphore init.
-	* pthread_mutex_destroy.c: Delete the event.
-	* pthread_mutex_lock.c: Replace the semaphore wait with the event wait.
-	* pthread_mutex_trylock.c: Likewise.
-	* pthread_mutex_timedlock.c: Likewise.
-	* pthread_mutex_unlock.c: Set the event.
-	
-2004-10-14  Ross Johnson  <rpj at callisto.canberra.edu.au>
-
-	* pthread_mutex_lock.c (pthread_mutex_lock): New algorithm using
-	Terekhov's xchg based variation of Drepper's cmpxchg model.
-	Theoretically, xchg uses fewer clock cycles than cmpxchg (using IA-32
-	as a reference), however, in my opinion bus locking dominates the
-	equation on smp systems, so the model with the least number of bus
-	lock operations in the execution path should win, which is Terekhov's
-	variant. On IA-32 uni-processor systems, it's faster to use the
-	CMPXCHG instruction without locking the bus than to use the XCHG
-	instruction, which always locks the bus. This makes the two variants
-	equal for the non-contended lock (fast lane) execution path on up
-	IA-32. Testing shows that the xchg variant is faster on up IA-32 as
-	well if the test forces higher lock contention frequency, even though
-	kernel calls should be dominating the times (on up IA-32, both
-	variants used CMPXCHG instructions and neither locked the bus).
-	* pthread_mutex_timedlock.c pthread_mutex_timedlock(): Similarly.
-	* pthread_mutex_trylock.c (pthread_mutex_trylock): Similarly.
-	* pthread_mutex_unlock.c (pthread_mutex_unlock): Similarly.
-	* ptw32_InterlockedCompareExchange.c (ptw32_InterlockExchange): New
-	function.
-	(PTW32_INTERLOCKED_EXCHANGE): Sets up macro to use inlined
-	ptw32_InterlockedExchange.
-	* implement.h (PTW32_INTERLOCKED_EXCHANGE): Set default to
-	InterlockedExchange().
-	* Makefile: Building using /Ob2 so that asm sections within inline
-	functions are inlined.
-
-2004-10-08  Ross Johnson  <rpj at callisto.canberra.edu.au>
-
-	* pthread_mutex_destroy.c (pthread_mutex_destroy): Critical Section
-	element is no longer required.
-	* pthread_mutex_init.c (pthread_mutex_init): Likewise.
-	* pthread_mutex_lock.c (pthread_mutex_lock): New algorithm following
-	Drepper's paper at http://people.redhat.com/drepper/futex.pdf, but
-	using the existing semaphore in place of the futex described in the
-	paper. Idea suggested by Alexander Terekhov - see:
-	http://sources.redhat.com/ml/pthreads-win32/2003/msg00108.html
-	* pthread_mutex_timedlock.c pthread_mutex_timedlock(): Similarly.
-	* pthread_mutex_trylock.c (pthread_mutex_trylock): Similarly.
-	* pthread_mutex_unlock.c (pthread_mutex_unlock): Similarly.
-	* pthread_barrier_wait.c (pthread_barrier_wait): Use inlined version
-	of InterlockedCompareExchange() if possible - determined at
-	build-time.
-	* pthread_spin_destroy.c pthread_spin_destroy(): Likewise.
-	* pthread_spin_lock.c pthread_spin_lock():Likewise.
-	* pthread_spin_trylock.c (pthread_spin_trylock):Likewise.
-	* pthread_spin_unlock.c (pthread_spin_unlock):Likewise.
-	* ptw32_InterlockedCompareExchange.c: Sets up macro for inlined use.
-	* implement.h (pthread_mutex_t_): Remove Critical Section element.
-	(PTW32_INTERLOCKED_COMPARE_EXCHANGE): Set to default non-inlined
-	version of InterlockedCompareExchange().
-	* private.c: Include ptw32_InterlockedCompareExchange.c first for
-	inlining.
-	* GNUmakefile: Add commandline option to use inlined
-	InterlockedCompareExchange().
-	* Makefile: Likewise.
-
-2004-09-27  Ross Johnson  <rpj at callisto.canberra.edu.au>
-
-	* pthread_mutex_lock.c (pthread_mutex_lock): Separate
-	PTHREAD_MUTEX_NORMAL logic since we do not need to keep or check some
-	state required by other mutex types; do not check mutex pointer arg
-	for validity - leave this to the system since we are only checking
-	for NULL pointers. This should improve speed of NORMAL mutexes and
-	marginally improve speed of other type.
-	* pthread_mutex_trylock.c (pthread_mutex_trylock): Likewise.
-	* pthread_mutex_unlock.c (pthread_mutex_unlock): Likewise; also avoid
-	entering the critical section for the no-waiters case, with approx.
-	30% reduction in lock/unlock overhead for this case.
-	* pthread_mutex_timedlock.c (pthread_mutex_timedlock): Likewise; also
-	no longer keeps mutex if post-timeout second attempt succeeds - this
-	will assist applications that wish to impose strict lock deadlines,
-	rather than simply to escape from frozen locks.
-
-2004-09-09  Tristan Savatier  <tristan at mpegtv.com>
-	* pthread.h (struct pthread_once_t_): Qualify the 'done' element
-	as 'volatile'.
-	* pthread_once.c: Concerned about possible race condition,
-	specifically on MPU systems re concurrent access to multibyte types.
-	[Maintainer's note: the race condition is harmless on SPU systems
-	and only a problem on MPU systems if concurrent access results in an
-	exception (presumably generated by a hardware interrupt). There are
-	other instances of similar harmless race conditions that have not
-	been identified as issues.]
-
-2004-09-09  Ross Johnson  <rpj at callisto.canberra.edu.au>
-
-	* pthread.h: Declare additional types as volatile.
-
-2004-08-27  Ross Johnson  <rpj at callisto.canberra.edu.au>
-
-	* pthread_barrier_wait.c (pthread_barrier_wait): Remove excessive code
-	by substituting the internal non-cancelable version of sem_wait
-	(ptw32_semwait).
-
-2004-08-25  Ross Johnson  <rpj at callisto.canberra.edu.au>
-
-	* pthread_join.c (pthread_join): Rewrite and re-order the conditional
-	tests in an attempt to improve efficiency and remove a race
-	condition.
-
-2004-08-23  Ross Johnson  <rpj at callisto.canberra.edu.au>
-
-	* create.c (pthread_create): Don't create a thread if the thread
-	id pointer location (first arg) is inaccessible. A memory
-	protection fault will result if the thread id arg isn't an accessible
-	location. This is consistent with GNU/Linux but different to
-	Solaris or MKS (and possibly others), which accept NULL as meaning
-	'don't return the created thread's ID'. Applications that run
-	using pthreads-win32 will run on all other POSIX threads
-	implementations, at least w.r.t. this feature.
-
-	It was decided not to copy the Solaris et al behaviour because,
-	although it would have simplified some application porting (but only
-	from Solaris to Windows), the feature is not technically necessary,
-	and the alternative segfault behaviour helps avoid buggy application
-	code.
-
-2004-07-01  Anuj Goyal  <anuj.goyal at gmail.com>
-
-	* builddmc.bat: New; Windows bat file to build the library.
-	* config.h (__DMC__): Support for Digital Mars compiler.
-	* create.c (__DMC__): Likewise.
-	* pthread_exit.c (__DMC__): Likewise.
-	* pthread_join.c (__DMC__): Likewise.
-	* ptw32_threadDestroy.c (__DMC__): Likewise.
-	* ptw32_threadStart.c (__DMC__): Likewise.
-	* ptw32_throw.c (__DMC__): Likewise.
-
-2004-06-29  Anuj Goyal  <anuj.goyal at gmail.com>
-
-	* pthread.h (__DMC__): Initial support for Digital Mars compiler.
-
-2004-06-29  Will Bryant  <will.bryant at ecosm.com>
-
-	* README.Borland: New; description of Borland changes.
-	* Bmakefile: New makefile for the Borland make utility.
-	* ptw32_InterlockedCompareExchange.c:
-	Add Borland compatible asm code.
-
-2004-06-26  Jason Bard  <BardJA at Npt.NUWC.Navy.Mil>
-
-	* pthread.h (HAVE_STRUCT_TIMESPEC): If undefined, define it
-	to avoid timespec struct redefined errors elsewhere in an
-	application.
-
-2004-06-21  Ross Johnson  <rpj at callisto.canberra.edu.au>
-
-	* pthread.h (PTHREAD_RECURSIVE_MUTEX_INITIALIZER): Mutex
-	initialiser added for compatibility with Linux threads and
-	others; currently not included in SUSV3.
-	* pthread.h (PTHREAD_ERRORCHECK_MUTEX_INITIALIZER): Likewise.
-	* pthread.h (PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP): Likewise.
-	* pthread.h (PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP): Likewise.
-
-	* ptw32_mutex_check_need_init.c (ptw32_mutex_check_need_init): 
-	Add new initialisers.
-
-	* pthread_mutex_lock.c (pthread_mutex_lock): Check for new
-	initialisers.
-	* pthread_mutex_trylock.c (pthread_mutex_trylock): Likewise.
-	* pthread_mutex_timedlock.c (pthread_mutex_timedlock): Likewise.
-	* pthread_mutex_unlock.c (pthread_mutex_unlock): Likewise.
-	* pthread_mutex_destroy.c (pthread_mutex_destroy): Likewise.
-
-2004-05-20  Ross Johnson  <rpj at callisto.canberra.edu.au>
-
-	* README.NONPORTABLE: Document pthread_win32_test_features_np().
-	* FAQ: Update various answers.
-
-2004-05-19  Ross Johnson  <rpj at callisto.canberra.edu.au>
-
-	* Makefile: Don't define _WIN32_WINNT on compiler command line.
-	* GNUmakefile: Likewise.
-
-2004-05-16  Ross Johnson  <rpj at callisto.canberra.edu.au>
-
-	* pthread_cancel.c (pthread_cancel): Adapted to use auto-detected
-	QueueUserAPCEx features at run-time.
-	(ptw32_RegisterCancelation): Drop in replacement for QueueUserAPCEx()
-	if it can't be used. Provides older style non-preemptive async
-	cancelation.
-	* pthread_win32_attach_detach_np.c (pthread_win32_attach_np):
-	Auto-detect quserex.dll and the availability of alertdrv.sys;
-	initialise and close on process attach/detach.
-	* global.c (ptw32_register_cancelation): Pointer to either
-	QueueUserAPCEx() or ptw32_RegisterCancelation() depending on
-	availability. QueueUserAPCEx makes pre-emptive async cancelation
-	possible.
-	* implement.h: Add definitions and prototypes related to QueueUserAPC.
-
-2004-05-16  Panagiotis E. Hadjidoukas <peh at hpclab.ceid.upatras.gr>
-
-	* QueueUserAPCEx (separate contributed package): Provides preemptive
-	APC feature.
-	* pthread_cancel.c (pthread_cancel): Initial integration of
-	QueueUserAPCEx into pthreads-win32 to provide true pre-emptive
-	async cancelation of threads, including blocked threads.
-
-2004-05-06  Makoto Kato  <raven at oldskool.jp>
-
-	* pthread.h (DWORD_PTR): Define typedef for older MSVC.
-	* pthread_cancel.c (AMD64): Add architecture specific Context register.
-	* ptw32_getprocessors.c: Use correct types (DWORD_PTR) for mask
-	variables.
-
-2004-04-06  P. van Bruggen  <pietvb at newbridges.nl>
-
-	* ptw32_threadDestroy.c: Destroy threadLock mutex to
-	close a memory leak.
-
-2004-02-13  Gustav Hallberg  <gustav at virtutech.com>
-
-	* pthread_equal.c: Remove redundant equality logic.
-
-2003-12-10  Philippe Di Cristo  <philipped at voicebox.com>
-
-	* sem_timedwait.c (sem_timedwait): Fix timeout calculations.
-
-2003-10-20  Alexander Terekhov  <TEREKHOV at de.ibm.com>
-
-	* pthread_mutex_timedlock.c (ptw32_semwait): Move to individual module.
-	* ptw32_semwait.c: New module.
-	* pthread_cond_wait.c (ptw32_cond_wait_cleanup): Replace cancelable
-	sem_wait() call with non-cancelable ptw32_semwait() call.
-	* pthread.c (private.c): Re-order for inlining. GNU C warned that
-	function ptw32_semwait() was defined 'inline' after it was called.
-	* pthread_cond_signal.c (ptw32_cond_unblock): Likewise.
-	* pthread_delay_np.c: Disable Watcom warning with comment.
-	* *.c (process.h): Remove include from .c files. This is conditionally
-	included by the common project include files.
-
-2003-10-20  James Ewing  <james.ewing at sveasoft.com>
-
-	* ptw32_getprocessors.c: Some Win32 environments don't have
-	GetProcessAffinityMask(), so always return CPU count = 1 for them.
-	* config.h (NEED_PROCESSOR_AFFINITY_MASK): Define for WinCE.
-	
-2003-10-15  Ross Johnson  <ross at callisto.canberra.edu.au>
-
-	* Re-indented all .c files using default GNU style to remove assorted
-	editor ugliness (used GNU indent utility in default style).
-
-2003-10-15  Alex Blanco  <Alex.Blanco at motorola.com>
-
-	* sem_init.c (sem_init): Would call CreateSemaphore even if the sema
-	struct calloc failed; was not freeing calloced memory if either
-	CreateSemaphore or CreateEvent failed.
-
-2003-10-14  Ross Johnson  <ross at callisto.canberra.edu.au>
-
-	* pthread.h: Add Watcom compiler compatibility. Esssentially just add
-	the cdecl attribute to all exposed function prototypes so that Watcom
-	generates function call code compatible with non-Watcom built libraries.
-	By default, Watcom uses registers to pass function args if possible rather
-	than pushing to stack.
-	* semaphore.h: Likewise.
-	* sched.h: Likewise.
-	* pthread_cond_wait.c (ptw32_cond_wait_cleanup): Define with cdecl attribute
-	for Watcom compatibility. This routine is called via pthread_cleanup_push so
-	it had to match function arg definition.
-	* Wmakefile: New makefile for Watcom builds.
-
-2003-09-14  Ross Johnson  <rpj at callisto.canberra.edu.au>
-
-	* pthread_setschedparam.c (pthread_setschedparam): Attempt to map
-	all priority levels between max and min (as returned by
-	sched_get_priority_min/max) to reasonable Win32 priority levels - i.e.
-	levels between THREAD_PRIORITY_LOWEST/IDLE to THREAD_PRIORITY_LOWEST and
-	between THREAD_PRIORITY_HIGHEST/TIME_CRITICAL to THREAD_PRIORITY_HIGHEST
-	while others remain unchanged; record specified thread priority level
-	for return by pthread_getschedparam.
-
-	Note that, previously, specified levels not matching Win32 priority levels
-	would silently leave the current thread priority unaltered.
-
-	* pthread_getschedparam.c (pthread_getschedparam): Return the priority
-	level specified by the latest pthread_setschedparam or pthread_create rather
-	than the actual running thread priority as returned by GetThreadPriority - as
-	required by POSIX. I.e. temporary or adjusted actual priority levels are not
-	returned by this routine.
-
-	* pthread_create.c (pthread_create): For priority levels specified via
-	pthread attributes, attempt to map all priority levels between max and
-	min (as returned by sched_get_priority_min/max) to reasonable Win32
-	priority levels; record priority level given via attributes, or
-	inherited from parent thread, for later return by pthread_getschedparam.
-
-	* ptw32_new.c (ptw32_new): Initialise pthread_t_ sched_priority element.
-
-	* pthread_self.c (pthread_self): Set newly created implicit POSIX thread
-	sched_priority to Win32 thread's current actual priority. Temporarily
-	altered priorities can't be avoided in this case.
-
-	* implement.h (struct pthread_t_): Add new sched_priority element.
-
-2003-09-12  Ross Johnson  <rpj at callisto.canberra.edu.au>
-
-	* sched_get_priority_min.c (sched_get_priority_min): On error should return -1
-	with errno set.
-	* sched_get_priority_max.c (sched_get_priority_max): Likewise.
-
-2003-09-03  Ross Johnson  <rpj at callisto.canberra.edu.au>
-
-	* w32_cancelableWait.c (ptw32_cancelable_wait): Allow cancelation
-	of implicit POSIX threads as well.
-
-2003-09-02  Ross Johnson  <rpj at callisto.canberra.edu.au>
-
-	* pthread_win32_attach_detach_np.c (pthread_win32_thread_detach_np):
-	Add comment.
-
-	* pthread_exit.c (pthread_exit): Fix to recycle the POSIX thread handle in
-	addition to calling user TSD destructors. Move the implicit POSIX thread exit
-	handling to ptw32_throw to centralise the logic.
-
-	* ptw32_throw.c (ptw32_throw): Implicit POSIX threads have no point
-	to jump or throw to, so cleanup and exit the thread here in this case. For
-	processes using the C runtime, the exit code will be set to the POSIX
-	reason for the throw (i.e. PTHREAD_CANCEL or the value given to pthread_exit).
-	Note that pthread_exit() already had similar logic, which has been moved to
-	here.
-
-	* ptw32_threadDestroy.c (ptw32_threadDestroy): Don't close the Win32 handle
-	of implicit POSIX threads - expect this to be done by Win32?
-
-2003-09-01  Ross Johnson  <rpj at callisto.canberra.edu.au>
-
-	* pthread_self.c (pthread_self): The newly aquired pthread_t must be
-	assigned to the reuse stack, not freed, if the routine fails somehow.
-
-2003-08-13  Ross Johnson  <rpj at ise.canberra.edu.au>
-
-	* pthread_getschedparam.c (pthread_getschedparam): An invalid thread ID
-	parameter was returning an incorrect error value; now uses a more exhaustive
-	check for validity.
-
-	* pthread_setschedparam.c (pthread_setschedparam): Likewise.
-
-	* pthread_join.c (pthread_join): Now uses a more exhaustive
-	check for validity.
-
-	* pthread_detach.c (pthread_detach): Likewise.
-
-	* pthread_cancel.c (pthread_cancel): Likewise.
-
-	* ptw32_threadDestroy.c (ptw32_threadDestroy): pthread_t structs are
-	never freed - push them onto a stack for reuse.
-
-	* ptw32_new.c (ptw32_new): Check for reusable pthread_t before dynamically
-	allocating new memory for the struct.
-
-	* pthread_kill.c (pthread_kill): New file; new routine; takes only a zero
-	signal arg so that applications can check the thread arg for validity; checks
-	that the underlying Win32 thread HANDLE is valid.
-
-	* pthread.h (pthread_kill): Add prototype.
-
-	* ptw32_reuse.c (ptw32_threadReusePop): New file; new routine; pop a
-	pthread_t off the reuse stack. pthread_t_ structs that have been destroyed, i.e.
-	have exited detached or have been joined, are cleaned up and put onto a reuse
-	stack. Consequently, thread IDs are no longer freed once calloced. The library
-	will attempt to get a struct off this stack before asking the system to alloc
-	new memory when creating threads. The stack is guarded by a global mutex.
-	(ptw32_threadReusePush): New routine; push a pthread_t onto the reuse stack.
-
-	* implement.h (ptw32_threadReusePush): Add new prototype.
-	(ptw32_threadReusePop): Likewise.
-	(pthread_t): Add new element.
-
-	* ptw32_processTerminate.c (ptw32_processTerminate): Delete the thread
-	reuse lock; free all thread ID structs on the thread reuse stack.
-
-	* ptw32_processInitialize.c (ptw32_processInitialize): Initialise the
-	thread reuse lock.
-
-2003-07-19  Ross Johnson  <rpj at ise.canberra.edu.au>
-
-	* GNUmakefile: modified to work under MsysDTK environment.
-	* pthread_spin_lock.c (pthread_spin_lock): Check for NULL arg.
-	* pthread_spin_unlock.c (pthread_spin_unlock): Likewise.
-	* pthread_spin_trylock.c (pthread_spin_trylock): Likewise;
-	fix incorrect pointer value if lock is dynamically initialised by
-	this function.
-	* sem_init.c (sem_init): Initialise sem_t value to quell compiler warning.
-	* sem_destroy.c (sem_destroy): Likewise.
-	* ptw32_threadStart.c (non-MSVC code sections): Include <exception> rather
-	than old-style <new.h>; fix all std:: namespace entities such as
-	std::terminate_handler instances and associated methods.
-	* ptw32_callUserDestroyRoutines.c (non-MSVC code sections): Likewise.
-
-2003-06-24  Piet van Bruggen  <pietvb at newbridges.nl>
-
-	* pthread_spin_destroy.c (pthread_spin_destroy): Was not freeing the
-	spinlock struct.
-
-2003-06-22  Nicolas Barry  <boozai at yahoo.com>
-
-	* pthread_mutex_destroy.c (pthread_mutex_destroy): When called
-	with a recursive mutex that was locked by the current thread, the
-	function was failing with a success return code.
-
-2003-05-15  Steven Reddie  <Steven.Reddie at ca.com>
-
-	* pthread_win32_attach_detach_np.c (pthread_win32_process_detach_np):
-	NULLify ptw32_selfThreadKey after the thread is destroyed, otherwise
-	destructors calling pthreads routines might resurrect it again, creating
-	memory leaks. Call the underlying Win32 Tls routine directly rather than
-	pthread_setspecific().
-	(pthread_win32_thread_detach_np): Likewise.
-
-2003-05-14  Viv  <vcotirlea at hotmail.com>
-
-	* pthread.dsp: Change /MT compile flag to /MD.
-
-2003-03-04  Alexander Terekhov  <TEREKHOV at de.ibm.com>
-
-	* pthread_mutex_timedlock.c (pthread_mutex_timedlock): Fix failure to
-	set ownership of mutex on second grab after abstime timeout.
-	- bug reported by Robert Strycek <strycek at posam.sk>
-
-2002-12-17  Thomas Pfaff  <tpfaff at gmx.net>
-
-	* pthread_mutex_lock.c (ptw32_semwait): New static routine to provide
-	a non-cancelable sem_wait() function. This is consistent with the
-	way that pthread_mutex_timedlock.c does it.
-	(pthread_mutex_lock): Use ptw32_semwait() instead of sem_wait().
-
-2002-12-11  Thomas Pfaff  <tpfaff at gmx.net>
-
-	* pthread_mutex_trylock.c: Should return EBUSY rather than EDEADLK.
-	* pthread_mutex_destroy.c: Remove redundant ownership test (the
-	trylock call does this for us); do not destroy a recursively locked
-	mutex.
-
-2002-09-20  Michael Johnson  <michaelj at maine.rr.com>
-
-	* pthread_cond_destroy.c (pthread_cond_destroy): 
-	When two different threads exist, and one is attempting to
-	destroy a condition variable while the other is attempting to
-	initialize a condition variable that was created with
-	PTHREAD_COND_INITIALIZER, a deadlock can occur. Shrink
-	the ptw32_cond_list_lock critical section to fix it.
-
-2002-07-31  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* ptw32_threadStart.c (ptw32_threadStart): Thread cancelLock
-	destruction moved to ptw32_threadDestroy().
-
-	* ptw32_threadDestroy.c (ptw32_threadDestroy):  Destroy
-	the thread's cancelLock. Moved here from ptw32_threadStart.c
-	to cleanup implicit threads as well.
-
-2002-07-30  Alexander Terekhov  <TEREKHOV at de.ibm.com>
-
-	* pthread_cond_wait.c (ptw32_cond_wait_cleanup): 
-	Remove code designed to avoid/prevent spurious wakeup
-	problems. It is believed that the sem_timedwait() call
-	is consuming a CV signal that it shouldn't and this is
-	breaking the avoidance logic.
-
-2002-07-30  Ross Johnson  <rpj at ise.canberra.edu.au>
-
-	* sem_timedwait.c (sem_timedwait): Tighten checks for
-	unreasonable abstime values - that would result in
-	unexpected timeout values.
-
-	* w32_CancelableWait.c (ptw32_cancelable_wait):
-	Tighten up return value checking and add comments.
-
-
-2002-06-08  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* sem_getvalue.c (sem_getvalue): Now returns a value for the
-	NEED_SEM version (i.e. earlier versions of WinCE).
-
-
-2002-06-04  Rob Fanner  <rfanner at stonethree.com>
-
-	* sem_getvalue.c (sem_getvalue): The Johnson M. Hart
-	approach didn't work - we are forced to take an
-	intrusive approach. We try to decrement the sema
-	and then immediately release it again to get the
-	value. There is a small probability that this may
-	block other threads, but only momentarily.
-
-2002-06-03  Ross Johnson  <rpj at ise.canberra.edu.au>
-
-	* sem_init.c (sem_init): Initialise Win32 semaphores
-	to _POSIX_SEM_VALUE_MAX (which this implementation
-	defines in pthread.h) so that sem_getvalue() can use
-	the trick described in the comments in sem_getvalue().
-	* pthread.h (_POSIX_SEM_VALUE_MAX): Defined.
-	(_POSIX_SEM_NSEMS_MAX): Defined - not used but may be
-	useful for source code portability.
-
-2002-06-03  Rob Fanner  <rfanner at stonethree.com>
-
-	* sem_getvalue.c (sem_getvalue): Did not work on NT.
-	Use approach suggested by Johnson M. Hart in his book
-	"Win32 System Programming".
-
-2002-02-28  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* errno.c: Compiler directive was incorrectly including code.
-	* pthread.h: Conditionally added some #defines from config.h
-	needed when not building the library. e.g. NEED_ERRNO, NEED_SEM.
-	(PTW32_DLLPORT): Now only defined if _DLL defined.
-	(_errno): Compiler directive was incorrectly including prototype.
-	* sched.h: Conditionally added some #defines from config.h
-	needed when not building the library.
-	* semaphore.h: Replace an instance of NEED_SEM that should
-	have been NEED_ERRNO. This change currently has nil effect.
-
-	* GNUmakefile: Correct some recent changes.
-
-	* Makefile: Add rule to generate pre-processor output.
-
-2002-02-23  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* pthread_rwlock_timedrdlock.c: New - untested.
-	* pthread_rwlock_timedwrlock.c: New - untested.
-	
-	* Testsuite passed (except known MSVC++ problems)
-
-	* pthread_cond_destroy.c: Expand the time change
-	critical section to solve deadlock problem.
-
-	* pthread.c: Add all remaining C modules.
-	* pthread.h: Use dllexport/dllimport attributes on functions
-	to avoid using pthread.def.
-	* sched.h: Likewise.
-	* semaphore.h: Likewise.
-	* GNUmakefile: Add new targets for single translation
-	unit build to maximise inlining potential; generate
-	pthread.def automatically.
-	* Makefile: Likewise, but no longer uses pthread.def.
-
-2002-02-20  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* pthread_cond_destroy.c (pthread_cond_destroy):
-	Enter the time change critical section earlier.
-
-2002-02-17  Ross Johnson  <rpj at setup1.ise.canberra.edu.au
-
-	* Testsuite passed.
-
-	* pthread_timechange_handler_np.c: New; following
-	a suggestion from Alexander Terekhov that CVs should
-	be broadcast so that they all re-evaluate their
-	condition variables and reset a new timeout if
-	required, whenever an application receives a
-	WM_TIMECHANGE message. This message indicates that
-	the system time has been changed. Therefore, CVs
-	waiting for a timeout set as an abs_time will possibly
-	not wake up at the expected time. Some applications
-	may not be tolerant of this.
-	* pthread_cond_init.c: Add CV to linked list.
-	* pthread_cond_destroy.c: Remove CV from linked list.
-	* global.c (ptw32_cond_list_head): New variable.
-	(ptw32_cond_list_tail): New variable.
-	(ptw32_cond_list_cs): New critical section.
-	* ptw32_processInitialize (ptw32_cond_list_cs): Initialize.
-	* ptw32_processTerminate (ptw32_cond_list_cs): Delete.
-
-
-	* Reduce executable size.
-	  -----------------------
-	When linking with the static library, only those
-	routines actually called, either directly or indirectly
-	should be included.
-
-	[Gcc has the -ffunction-segments option to do this but MSVC
-	doesn't have this feature as far as I can determine. Other
-	compilers are undetermined as well. - rpj]
-
-	* spin.c: Split file into function segments.
-	* ptw32_spinlock_check_need_init.c: Separated routine from spin.c.
-	* pthread_spin_init.c: Likewise.
-	* pthread_spin_destroy.c: Likewise.
-	* pthread_spin_lock.c: Likewise.
-	* pthread_spin_unlock.c: Likewise.
-	* pthread_spin_trylock.c: Likewise.
-
-	* sync.c: Split file into function segments.
-	* pthread_detach.c: Separated routine from sync.c.
-	* pthread_join.c: Likewise.
-
-	* tsd.c: Split file into function segments.
-	* pthread_key_create.c: Separated routine from tsd.c.
-	* pthread_key_delete.c: Likewise.
-	* pthread_setspecific.c: Likewise.
-	* pthread_getspecific.c: Likewise.
-
-	* sched.c: Split file into function segments.
-	* pthread_attr_setschedpolicy.c: Separated routine from sched.c.
-	* pthread_attr_getschedpolicy.c: Likewise.
-	* pthread_attr_setschedparam.c: Likewise.
-	* pthread_attr_getschedparam.c: Likewise.
-	* pthread_attr_setinheritsched.c: Likewise.
-	* pthread_attr_getinheritsched.c: Likewise.
-	* pthread_setschedparam.c: Likewise.
-	* pthread_getschedparam.c: Likewise.
-	* sched_get_priority_max.c: Likewise.
-	* sched_get_priority_min.c: Likewise.
-	* sched_setscheduler.c: Likewise.
-	* sched_getscheduler.c: Likewise.
-	* sched_yield.c: Likewise.
-
-
-2002-02-16  Ross Johnson  <rpj at setup1.ise.canberra.edu.au
-
-	Reduce executable size.
-	-----------------------
-	When linking with the static library, only those
-	routines actually called, either directly or indirectly
-	should be included.
-
-	[Gcc has the -ffunction-segments option to do this but MSVC
-	doesn't have this feature as far as I can determine. Other
-	compilers are undetermined as well. - rpj]
-
-	* mutex.c: Split file into function segments.
-	* pthread_mutexattr_destroy.c: Separated routine from mutex.c
-	* pthread_mutexattr_getpshared.c: Likewise.
-	* pthread_mutexattr_gettype.c: Likewise.
-	* pthread_mutexattr_init.c: Likewise.
-	* pthread_mutexattr_setpshared.c: Likewise.
-	* pthread_mutexattr_settype.c: Likewise.
-	* ptw32_mutex_check_need_init.c: Likewise.
-	* pthread_mutex_destroy.c: Likewise.
-	* pthread_mutex_init.c: Likewise.
-	* pthread_mutex_lock.c: Likewise.
-	* pthread_mutex_timedlock.c: Likewise.
-	* pthread_mutex_trylock.c: Likewise.
-	* pthread_mutex_unlock.c: Likewise.
-	
-	* private.c: Split file into function segments.
-	* ptw32_InterlockedCompareExchange.c: Separated routine from private.c
-	* ptw32_callUserDestroyRoutines.c: Likewise.
-	* ptw32_getprocessors.c: Likewise.
-	* ptw32_processInitialize.c: Likewise.
-	* ptw32_processTerminate.c: Likewise.
-	* ptw32_threadDestroy.c: Likewise.
-	* ptw32_threadStart.c: Likewise.
-	* ptw32_throw.c: Likewise.
-	* ptw32_timespec.c: Likewise.
-	* ptw32_tkAssocCreate.c: Likewise.
-	* ptw32_tkAssocDestroy.c: Likewise.
-
-	* rwlock.c: Split file into function segments.
-	* pthread_rwlockattr_destroy.c: Separated routine from rwlock.c
-	* pthread_rwlockattr_getpshared.c: Likewise.
-	* pthread_rwlockattr_init.c: Likewise.
-	* pthread_rwlockattr_setpshared.c: Likewise.
-	* ptw32_rwlock_check_need_init.c: Likewise.
-	* pthread_rwlock_destroy.c: Likewise.
-	* pthread_rwlock_init.c: Likewise.
-	* pthread_rwlock_rdlock.c: Likewise.
-	* pthread_rwlock_tryrdlock.c: Likewise.
-	* pthread_rwlock_trywrlock.c: Likewise.
-	* pthread_rwlock_unlock.c: Likewise.
-	* pthread_rwlock_wrlock.c: Likewise.
-
-2002-02-10  Ross Johnson  <rpj at setup1.ise.canberra.edu.au
-
-	Reduce executable size.
-	-----------------------
-	When linking with the static library, only those
-	routines actually called, either directly or indirectly
-	should be included.
-
-	[Gcc has the -ffunction-segments option to do this but MSVC
-	doesn't have this feature as far as I can determine. Other
-	compilers are undetermined as well. - rpj]
-
-	* nonportable.c: Split file into function segments.
-	* np_delay.c: Separated routine from nonportable.c
-	* np_getw32threadhandle.c: Likewise.
-	* np_mutexattr_setkind.c: Likewise.
-	* np_mutexattr_getkind.c: Likewise.
-	* np_num_processors.c: Likewise.
-	* np_win32_attach_detach.c: Likewise.
-
-	* misc.c: Split file into function segments.
-	* pthread_equal.c: Separated routine from nonportable.c.
-	* pthread_getconcurrency.c: Likewise.
-	* pthread_once.c: Likewise.
-	* pthread_self.c: Likewise.
-	* pthread_setconcurrency.c: Likewise.
-	* ptw32_calloc.c: Likewise.
-	* ptw32_new.c: Likewise.
-	* w32_CancelableWait.c: Likewise.
-	
-2002-02-09  Ross Johnson  <rpj at setup1.ise.canberra.edu.au
-
-	Reduce executable size.
-	-----------------------
-	When linking with the static library, only those
-	routines actually called, either directly or indirectly
-	should be included.
-
-	[Gcc has the -ffunction-segments option to do this but MSVC
-	doesn't have this feature as far as I can determine. Other
-	compilers are undetermined as well. - rpj]
-
-	* condvar.c: Split file into function segments.
-	* pthread_condattr_destroy.c: Separated routine from condvar.c.
-	* pthread_condattr_getpshared.c: Likewise.
-	* pthread_condattr_init.c: Likewise.
-	* pthread_condattr_setpshared.c: Likewise.
-	* ptw32_cond_check_need_init.c: Likewise.
-	* pthread_cond_destroy.c: Likewise.
-	* pthread_cond_init.c: Likewise.
-	* pthread_cond_signal.c: Likewise.
-	* pthread_cond_wait.c: Likewise.
-	
-2002-02-07  Alexander Terekhov<TEREKHOV at de.ibm.com>
-
-	* nonportable.c (pthread_delay_np): Make a true
-	cancelation point. Deferred cancels will interrupt the
-	wait.
-
-2002-02-07  Ross Johnson  <rpj at setup1.ise.canberra.edu.au
-
-	* misc.c (ptw32_new): Add creation of cancelEvent so that
-	implicit POSIX threads (Win32 threads with a POSIX face)
-	are cancelable; mainly so that pthread_delay_np doesn't fail
-	if called from the main thread.
-	* create.c (pthread_create): Remove creation of cancelEvent
-	from here; now in ptw32_new().
-
-	Reduce executable size.
-	-----------------------
-	When linking with the static library, only those
-	routines actually called, either directly or indirectly
-	should be included.
-
-	[Gcc has the -ffunction-segments option to do this but MSVC
-	doesn't have this feature as far as I can determine. Other
-	compilers are undetermined as well. - rpj]
-
-	* barrier.c: All routines are now in separate compilation units;
-	This file is used to congregate the separate modules for
-	potential inline optimisation and backward build compatibility.
-	* cancel.c: Likewise.
-	* pthread_barrierattr_destroy.c: Separated routine from cancel.c.
-	* pthread_barrierattr_getpshared.c: Likewise.
-	* pthread_barrierattr_init.c: Likewise.
-	* pthread_barrierattr_setpshared.c: Likewise.
-	* pthread_barrier_destroy.c: Likewise.
-	* pthread_barrier_init.c: Likewise.
-	* pthread_barrier_wait.c: Likewise.
-	* pthread_cancel.c: Likewise.
-	* pthread_setcancelstate.c: Likewise.
-	* pthread_setcanceltype.c: Likewise.
-	* pthread_testcancel.c: Likewise.
-
-2002-02-04  Max Woodbury <mtew at cds.duke.edu>
-
-	Reduced name space pollution.
-	-----------------------------
-	When the appropriate symbols are defined, the headers
-	will restrict the definitions of new names. In particular,
-	it must be possible to NOT include the <windows.h>
-	header and related definitions with some combination
-	of symbol definitions. Secondly, it should be possible
-	that additional definitions should be limited to POSIX 
-	compliant symbols by the definition of appropriate symbols.
-
-	* pthread.h: POSIX conditionals.
-	* sched.h: POSIX conditionals.
-	* semaphore.h: POSIX conditionals.
-
-	* semaphore.c: Included <limits.h>.
-	(sem_init): Changed magic 0x7FFFFFFFL to INT_MAX.
-	(sem_getvalue): Trial version.
-
-	Reduce executable size.
-	-----------------------
-	When linking with the static library, only those
-	routines actually called, either directly or indirectly
-	should be included.
-
-	[Gcc has the -ffunction-segments option to do this but MSVC
-	doesn't have this feature as far as I can determine. Other
-	compilers are undetermined as well. - rpj]
-
-	* semaphore.c: All routines are now in separate compilation units;
-	This file is used to congregate the separate modules for
-	potential inline optimisation and backward build compatibility.
-	* sem_close.c: Separated routine from semaphore.c.
-	* ptw32_decrease_semaphore.c: Likewise.
-	* sem_destroy.c: Likewise.
-	* sem_getvalue.c: Likewise.
-	* ptw32_increase_semaphore.c: Likewise.
-	* sem_init.c: Likewise.
-	* sem_open.c: Likewise.
-	* sem_post.c: Likewise.
-	* sem_post_multiple.c: Likewise.
-	* sem_timedwait.c: Likewise.
-	* sem_trywait.c: Likewise.
-	* sem_unlink.c: Likewise.
-	* sem_wait.c: Likewise.
-
-2002-02-04  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	The following extends the idea above to the rest of pthreads-win32 - rpj
-	
-	* attr.c: All routines are now in separate compilation units;
-	This file is used to congregate the separate modules for
-	potential inline optimisation and backward build compatibility.
-	* pthread_attr_destroy.c: Separated routine from attr.c.
-	* pthread_attr_getdetachstate.c: Likewise.
-	* pthread_attr_getscope.c: Likewise.
-	* pthread_attr_getstackaddr.c: Likewise.
-	* pthread_attr_getstacksize.c: Likewise.
-	* pthread_attr_init.c: Likewise.
-	* pthread_attr_is_attr.c: Likewise.
-	* pthread_attr_setdetachstate.c: Likewise.
-	* pthread_attr_setscope.c: Likewise.
-	* pthread_attr_setstackaddr.c: Likewise.
-	* pthread_attr_setstacksize.c: Likewise.
-
-	* pthread.c: Agregation of agregate modules for super-inlineability.
-
-2002-02-02  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* cancel.c: Rearranged some code and introduced checks
-	to disable cancelation at the start of a thread's cancelation
-	run to prevent double cancelation. The main problem
-	arises if a thread is canceling and then receives a subsequent
-	async cancel request.
-	* private.c: Likewise.
-	* condvar.c: Place pragmas around cleanup_push/pop to turn
-	off inline optimisation (/Obn where n>0 - MSVC only). Various
-	optimisation switches in MSVC turn this on, which interferes with
-	the way that cleanup handlers are run in C++ EH and SEH
-	code. Application code compiled with inline optimisation must
-	also wrap cleanup_push/pop blocks with the pragmas, e.g.
-	  #pragma inline_depth(0)
-	  pthread_cleanup_push(...)
-	    ...
-	  pthread_cleanup_pop(...)
-	  #pragma inline_depth(8)
-	* rwlock.c: Likewise.
-	* mutex.c: Remove attempts to inline some functions.
-	* signal.c: Modify misleading comment.
-
-2002-02-01  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* semaphore.c (sem_trywait): Fix missing errno return
-	for systems that define NEED_SEM (e.g. early WinCE).
-	* mutex.c (pthread_mutex_timedlock): Return ENOTSUP
-	for systems that define NEED_SEM since they don't
-	have sem_trywait().
-
-2002-01-27  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* mutex.c (pthread_mutex_timedlock): New function suggested by
-	Alexander Terekhov. The logic required to implement this
-	properly came from Alexander, with some collaboration
-	with Thomas Pfaff.
-	(pthread_mutex_unlock): Wrap the waiters check and sema
-	post in a critical section to prevent a race with
-	pthread_mutex_timedlock.
-	(ptw32_timed_semwait): New function;
-	returns a special result if the absolute timeout parameter
-	represents a time already passed when called; used by
-	pthread_mutex_timedwait(). Have deliberately not reused
-	the name "ptw32_sem_timedwait" because they are not the same
-	routine.
-	* condvar.c (ptw32_cond_timedwait): Use the new sem_timedwait()
-	instead of ptw32_sem_timedwait(), which now has a different
-	function. See previous.
-	* implement.h: Remove prototype for ptw32_sem_timedwait.
-	See next.
-	(pthread_mutex_t_): Add critical section element for access
-	to lock_idx during mutex post-timeout processing.
-	* semaphore.h (sem_timedwait): See next.
-	* semaphore.c (sem_timedwait): See next.
-	* private.c (ptw32_sem_timedwait): Move to semaphore.c
-	and rename as sem_timedwait().
-
-2002-01-18  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* sync.c (pthread_join): Was getting the exit code from the
-	calling thread rather than the joined thread if
-	defined(__MINGW32__) && !defined(__MSVCRT__).
-
-2002-01-15  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* pthread.h: Unless the build explicitly defines __CLEANUP_SEH,
-	__CLEANUP_CXX, or __CLEANUP_C, then the build defaults to
-	__CLEANUP_C style cleanup. This style uses setjmp/longjmp
-	in the cancelation and thread exit implementations and therefore
-	won't do stack unwinding if linked to applications that have it
-	(e.g. C++ apps). This is currently consistent with most/all
-	commercial Unix POSIX threads implementations.
-
-	* spin.c (pthread_spin_init): Edit renamed function call.
-	* nonportable.c (pthread_num_processors_np): New.
-	(pthread_getprocessors_np): Renamed to ptw32_getprocessors
-	and moved to private.c.
-	* private.c (pthread_getprocessors): Moved here from
-	nonportable.c.
-	* pthread.def (pthread_getprocessors_np): Removed
-	from export list.
-
-	* rwlock.c (pthread_rwlockattr_init): New.
-	(pthread_rwlockattr_destroy): New.
-	(pthread_rwlockattr_getpshared): New.
-	(pthread_rwlockattr_setpshared): New.
-
-2002-01-14  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* attr.c (pthread_attr_setscope): Fix struct pointer
-	indirection error introduced 2002-01-04.
-	(pthread_attr_getscope): Likewise.
-
-2002-01-12  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* pthread.dsp (SOURCE): Add missing source files.
-
-2002-01-08  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* mutex.c (pthread_mutex_trylock): use
-	ptw32_interlocked_compare_exchange function pointer
-	rather than ptw32_InterlockedCompareExchange() directly
-	to retain portability to non-iX86 processors,
-	e.g. WinCE etc. The pointer will point to the native
-	OS version of InterlockedCompareExchange() if the
-	OS supports it (see ChangeLog entry of 2001-10-17).
-
-2002-01-07  Thomas Pfaff <tpfaff at gmx.net>, Alexander Terekhov <TEREKHOV at de.ibm.com>
-
-	* mutex.c (pthread_mutex_init): Remove critical
-	section calls.
-	(pthread_mutex_destroy): Likewise.
-	(pthread_mutex_unlock): Likewise.
-	(pthread_mutex_trylock): Likewise; uses
-	ptw32_InterlockedCompareExchange() to avoid need for
-	critical section; library is no longer i386 compatible;
-	recursive mutexes now increment the lock count rather
-	than return EBUSY; errorcheck mutexes return EDEADLCK
-	rather than EBUSY. This behaviour is consistent with the
-	Solaris pthreads implementation.
-	* implement.h (pthread_mutex_t_): Remove critical
-	section element - no longer needed.
-	
-
-2002-01-04  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* attr.c (pthread_attr_setscope): Add more error
-	checking and actually store the scope value even
-	though it's not really necessary.
-	(pthread_attr_getscope): Return stored value.
-	* implement.h (pthread_attr_t_): Add new scope element.
-	* ANNOUNCE: Fix out of date comment next to
-	pthread_attr_setscope in conformance section.
-
-2001-12-21  Alexander Terekhov <TEREKHOV at de.ibm.com>
-
-	* mutex.c (pthread_mutex_lock): Decrementing lock_idx was
-	not thread-safe.
-	(pthread_mutex_trylock): Likewise.
-
-2001-10-26  prionx@juno.com
-
-	* semaphore.c (sem_init): Fix typo and missing bracket
-	in conditionally compiled code. Only older versions of
-	WinCE require this code, hence it doesn't normally get
-	tested; somehow when sem_t reverted to an opaque struct
-	the calloc NULL check was left in the conditionally included
-	section.
-	(sem_destroy): Likewise, the calloced sem_t wasn't being freed.
-
-2001-10-25  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* GNUmakefile (libwsock32): Add to linker flags for
-	WSAGetLastError() and WSASetLastError().
-	* Makefile (wsock32.lib): Likewise.
-	* create.c: Minor mostly inert changes.
-	* implement.h (PTW32_MAX): Move into here and renamed
-	from sched.h.
-	(PTW32_MIN): Likewise.
-	* GNUmakefile (TEST_ICE): Define if testing internal
-	implementation of InterlockedCompareExchange.
-	* Makefile (TEST_ICE): Likewise.
-	* private.c (TEST_ICE): Likewise.
-	
-2001-10-24  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* attr.c (pthread_attr_setstacksize): Quell warning
-	from LCC by conditionally compiling the stacksize
-	validity check. LCC correctly warns that the condition
-	(stacksize < PTHREAD_STACK_MIN) is suspicious
-	because STACK_MIN is 0 and stacksize is of type
-	size_t (or unsigned int).
-
-2001-10-17  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* barrier.c: Move _LONG and _LPLONG defines into
-	implement.h; rename to PTW32_INTERLOCKED_LONG and
-	PTW32_INTERLOCKED_LPLONG respectively.
-	* spin.c: Likewise; ptw32_interlocked_compare_exchange used
-	in place of InterlockedCompareExchange directly.
-	* global.c (ptw32_interlocked_compare_exchange): Add
-	prototype for this new routine pointer to be used when
-	InterlockedCompareExchange isn't supported by Windows.
-	* nonportable.c (pthread_win32_process_attach_np): Check for
-	support of InterlockedCompareExchange in kernel32 and assign its
-	address to ptw32_interlocked_compare_exchange if it exists, or
-	our own ix86 specific implementation ptw32_InterlockedCompareExchange.
-	*private.c (ptw32_InterlockedCompareExchange): An
-	implementation of InterlockedCompareExchange() which is
-	specific to ix86; written directly in assembler for either
-	MSVC or GNU C; needed because Windows 95 doesn't support
-	InterlockedCompareExchange().
-
-	* sched.c (sched_get_priority_min): Extend to return
-	THREAD_PRIORITY_IDLE.
-	(sched_get_priority_max): Extend to return
-	THREAD_PRIORITY_CRITICAL.
-
-2001-10-15  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* spin.c (pthread_spin_lock): PTHREAD_SPINLOCK_INITIALIZER
-	was causing a program fault.
-	(pthread_spin_init): Could have alloced memory
-	without freeing under some error conditions.
-
-	* mutex.c (pthread_mutex_init): Move memory
-	allocation of mutex struct after checking for
-	PROCESS_SHARED.
-
-2001-10-12  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* spin.c (pthread_spin_unlock): Was not returning
-	EPERM if the spinlock was not locked, for multi CPU
-	machines.
-
-2001-10-08  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* spin.c (pthread_spin_trylock): Was not returning
-	EBUSY for multi CPU machines.
-
-2001-08-24  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* condvar.c (pthread_cond_destroy): Remove cv element
-	that is no longer used.
-	* implement.h: Likewise.
-
-2001-08-23  Alexander Terekhov <TEREKHOV at de.ibm.com>
-
-	* condvar.c (pthread_cond_destroy): fix bug with
-	respect to deadlock in the case of concurrent
-	_destroy/_unblock; a condition variable can be destroyed
-	immediately after all the threads that are blocked on
-	it are awakened.
-
-2001-08-23  Phil Frisbie, Jr. <phil at hawksoft.com>
-
-	* tsd.c (pthread_getspecific): Preserve the last
-	winsock error [from WSAGetLastError()].
-
-2001-07-18  Scott McCaskill <scott at magruder.org>
-
-	* mutex.c (pthread_mutexattr_init): Return ENOMEM
-	immediately and don't dereference the NULL pointer
-	if calloc fails.
-	(pthread_mutexattr_getpshared): Don't dereference
-	a pointer that is possibly NULL.
-	* barrier.c (pthread_barrierattr_init): Likewise
-	(pthread_barrierattr_getpshared): Don't dereference
-	a pointer that is possibly NULL.
-	* condvar.c (pthread_condattr_getpshared): Don't dereference
-	a pointer that is possibly NULL.
-
-2001-07-15  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* rwlock.c (pthread_rwlock_wrlock): Is allowed to be
-	a cancelation point; re-enable deferred cancelability
-	around the CV call.
-
-2001-07-10  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* barrier.c: Still more revamping. The exclusive access
-	mutex isn't really needed so it has been removed and replaced
-	by an InterlockedDecrement(). nSerial has been removed.
-	iStep is now dual-purpose. The process shared attribute
-	is now stored in the barrier struct.
-	* implement.h (pthread_barrier_t_): Lost some/gained one
-	elements.
-	* private.c (ptw32_threadStart): Removed some comments.
-
-2001-07-10  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* barrier.c: Revamped to fix the race condition. Two alternating
-	semaphores are used instead of the PulseEvent. Also improved
-	overall throughput by returning PTHREAD_BARRIER_SERIAL_THREAD
-	to the first waking thread.
-	* implement.h (pthread_barrier_t_): Revamped.
-
-2001-07-09  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* barrier.c: Fix several bugs in all routines. Now passes
-	tests/barrier5.c which is fairly rigorous. There is still
-	a non-optimal work-around for a race condition between
-	the barrier breeched event signal and event wait. Basically
-	the last (signalling) thread to hit the barrier yields
-	to allow any other threads, which may have lost the race,
-	to complete.
-
-2001-07-07  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* barrier.c: Changed synchronisation mechanism to a
-	Win32 manual reset Event and use PulseEvent to signal
-	waiting threads. If the implementation continued to use
-	a semaphore it would require a second semaphore and
-	some management to use them alternately as barriers. A
-	single semaphore allows threads to cascade from one barrier
-	through the next, leaving some threads blocked at the first.
-	* implement.h (pthread_barrier_t_): As per above.
-	* general: Made a number of other routines inlinable.
-
-2001-07-07  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* spin.c: Revamped and working; included static initialiser.
-	Now beta level.
-	* barrier.c: Likewise.
-	* condvar.c: Macro constant change; inline auto init routine.
-	* mutex.c: Likewise.
-	* rwlock.c: Likewise.
-	* private.c: Add support for spinlock initialiser.
-	* global.c: Likewise.
-	* implement.h: Likewise.
-	* pthread.h (PTHREAD_SPINLOCK_INITIALIZER): Fix typo.
-
-2001-07-05  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* barrier.c: Remove static initialisation - irrelevent
-	for this object.
-	* pthread.h (PTHREAD_BARRIER_INITIALIZER): Removed.
-	* rwlock.c (pthread_rwlock_wrlock): This routine is
-	not a cancelation point - disable deferred
-	cancelation around call to pthread_cond_wait().
-
-2001-07-05  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* spin.c: New module implementing spin locks.
-	* barrier.c: New module implementing barriers.
-	* pthread.h (_POSIX_SPIN_LOCKS): defined.
-	(_POSIX_BARRIERS): Defined.
-	(pthread_spin_*): Defined.
-	(pthread_barrier*): Defined.
-	(PTHREAD_BARRIER_SERIAL_THREAD): Defined.
-	* implement.h (pthread_spinlock_t_): Defined.
-	(pthread_barrier_t_): Defined.
-	(pthread_barrierattr_t_): Defined.
-
-	* mutex.c (pthread_mutex_lock): Return with the error
-	if an auto-initialiser initialisation fails.
-
-	* nonportable.c (pthread_getprocessors_np): New; gets the
-	number of available processors for the current process.
-
-2001-07-03  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* pthread.h (_POSIX_READER_WRITER_LOCKS): Define it
-	if not already defined.
-
-2001-07-01  Alexander Terekhov <TEREKHOV at de.ibm.com>
-
-	* condvar.c: Fixed lost signal bug reported by Timur Aydin
-	(taydin@snet.net).
-	[RPJ (me) didn't translate the original algorithm
-	correctly.]
-	* semaphore.c: Added sem_post_multiple; this is a useful
-	routine, but it doesn't appear to be standard. For now it's
-	not an exported function.
-	
-2001-06-25  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* create.c (pthread_create): Add priority inheritance
-	attributes.
-	* mutex.c (pthread_mutex_lock): Remove some overhead for
-	PTHREAD_MUTEX_NORMAL mutex types. Specifically, avoid
-	calling pthread_self() and pthread_equal() to check/set
-	the mutex owner. Introduce a new pseudo owner for this
-	type. Test results suggest increases in speed of up to
-	90% for non-blocking locks.
-	This is the default type of mutex used internally by other
-	synchronising objects, ie. condition variables and
-	read-write locks. The test rwlock7.c shows about a
-	30-35% speed increase over snapshot 2001-06-06. The
-	price of this is that the application developer
-	must ensure correct behaviour, or explicitly set the
-	mutex to a safer type such as PTHREAD_MUTEX_ERRORCHECK.
-	For example, PTHREAD_MUTEX_NORMAL (or PTHREAD_MUTEX_DEFAULT)
-	type mutexes will not return an error if a thread which is not
-	the owner calls pthread_mutex_unlock. The call will succeed
-	in unlocking the mutex if it is currently locked, but a
-	subsequent unlock by the true owner will then fail with EPERM.
-	This is however consistent with some other implementations.
-	(pthread_mutex_unlock): Likewise.
-	(pthread_mutex_trylock): Likewise.
-	(pthread_mutex_destroy): Likewise.
-	* attr.c (pthread_attr_init): PTHREAD_EXPLICIT_SCHED is the
-	default inheritance attribute; THREAD_PRIORITY_NORMAL is
-	the default priority for new threads.
-	* sched.c (pthread_attr_setschedpolicy): Added routine.
-	(pthread_attr_getschedpolicy): Added routine.
-	(pthread_attr_setinheritsched): Added routine.
-	(pthread_attr_getinheritsched): Added routine.
-	* pthread.h (sched_rr_set_interval): Added as a macro;
-	returns -1 with errno set to ENOSYS.
-
-2001-06-23  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	*sched.c (pthread_attr_setschedparam): Add priority range
-	check.
-	(sched_setscheduler): New function; checks for a valid
-	pid and policy; checks for permission to set information
-	in the target process; expects pid to be a Win32 process ID,
-	not a process handle; the only scheduler policy allowed is
-	SCHED_OTHER.
-	(sched_getscheduler): Likewise, but checks for permission
-	to query.
-	* pthread.h (SCHED_*): Moved to sched.h as defined in the
-	POSIX standard.
-	* sched.h (SCHED_*): Moved from pthread.h.
-	(pid_t): Defined if necessary.
-	(sched_setscheduler): Defined.
-	(sched_getscheduler): Defined.
-	* pthread.def (sched_setscheduler): Exported.
-	(sched_getscheduler): Likewise.
-
-2001-06-23  Ralf Brese <Ralf.Brese at pdb4.siemens.de>
-
-	* create.c (pthread_create): Set thread priority from
-	thread attributes.
-
-2001-06-18  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* Made organisational-only changes to UWIN additions.
-	* dll.c (dllMain): Moved UWIN process attach code
-	to pthread_win32_process_attach_np(); moved
-	instance of pthread_count to global.c.
-	* global.c (pthread_count): Moved from dll.c.
-	* nonportable.c (pthread_win32_process_attach_np):
-	Moved _UWIN code to here from dll.c.
-	* implement.h (pthread_count): Define extern int.
-	* create.c (pthread_count): Remove extern int.
-	* private.c (pthread_count): Likewise.
-	* exit.c (pthread_count): Likewise.
-
-2001-06-18  David Korn <dgk at research.att.com>
-
-	* dll.c: Added changes necessary to work with UWIN.
-	* create.c: Likewise.
-	* pthread.h: Likewise.
-	* misc.c: Likewise.
-	* exit.c: Likewise.
-	* private.c: Likewise.
-	* implement.h: Likewise.
-	There is some room at the start of struct pthread_t_
-	to implement the signal semantics in UWIN's posix.dll
-	although this is not yet complete.
-	* Nmakefile: Compatible with UWIN's Nmake utility.
-	* Nmakefile.tests: Likewise - for running the tests.
-
-2001-06-08  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* semaphore.h (sem_t): Fixed for compile and test.
-	* implement.h (sem_t_): Likewise.
-	* semaphore.c: Likewise.
-	* private.c (ptw32_sem_timedwait): Updated to use new
-	opaque sem_t.
-
-2001-06-06  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* semaphore.h (sem_t): Is now an opaque pointer;
-	moved actual definition to implement.h.
-	* implement.h (sem_t_): Move here from semaphore.h;
-	was the definition of sem_t.
-	* semaphore.c: Wherever necessary, changed use of sem
-	from that of a pointer to a pointer-pointer; added
-	extra checks for a valid sem_t; NULL sem_t when
-	it is destroyed; added extra checks when creating
-	and destroying sem_t elements in the NEED_SEM
-	code branches; changed from using a pthread_mutex_t
-	((*sem)->mutex) to CRITICAL_SECTION ((*sem)->sem_lock_cs)
-	in NEED_SEM branches for access serialisation.
-
-2001-06-06  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* mutex.c (pthread_mutexattr_init): Remove 
-	ptw32_mutex_default_kind.
-	
-2001-06-05  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* nonportable.c (pthread_mutex_setdefaultkind_np):
-	Remove - should not have been included in the first place.
-	(pthread_mutex_getdefaultkind_np): Likewise.
-	* global.c (ptw32_mutex_default_kind): Likewise.
-	* mutex.c (pthread_mutex_init): Remove use of
-	ptw32_mutex_default_kind.
-	* pthread.h (pthread_mutex_setdefaultkind_np): Likewise.
-	(pthread_mutex_getdefaultkind_np): Likewise.
-	* pthread.def (pthread_mutexattr_setkind_np): Added.
-	(pthread_mutexattr_getkind_np): Likewise.
-
-	* README: Many changes that should have gone in before
-	the last snapshot.
-	* README.NONPORTABLE: New - referred to by ANNOUNCE
-	but never created; documents the non-portable routines
-	included in the library - moved from README with new
-	routines added.
-	* ANNOUNCE (pthread_mutexattr_setkind_np): Added to
-	compliance list.
-	(pthread_mutexattr_getkind_np): Likewise.
-
-2001-06-04  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* condvar.c: Add original description of the algorithm as
-	developed by Terekhov and Thomas, plus reference to
-	README.CV.
-
-2001-06-03  Alexander Terekhov <TEREKHOV at de.ibm.com>, Louis Thomas <lthomas at arbitrade.com>
-
-	* condvar.c (pthread_cond_init): Completely revamped.
-	(pthread_cond_destroy): Likewise.
-	(ptw32_cond_wait_cleanup): Likewise.
-	(ptw32_cond_timedwait): Likewise.
-	(ptw32_cond_unblock): New general signaling routine.
-	(pthread_cond_signal): Now calls ptw32_cond_unblock.
-	(pthread_cond_broadcast): Likewise.
-	* implement.h (pthread_cond_t_): Revamped.
-	* README.CV: New; explanation of the above changes.
-
-2001-05-30  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* pthread.h (rand_r): Fake using _seed argument to quell
-	compiler warning (compiler should optimise this away later).
-
-	* GNUmakefile (OPT): Leave symbolic information out of the library
-	and increase optimisation level - for smaller faster prebuilt
-	dlls.
-	
-2001-05-29  Milan Gardian <Milan.Gardian at LEIBINGER.com>
-
-	* Makefile: fix typo.
-	* pthreads.h: Fix problems with stdcall/cdecl conventions, in particular
-	remove the need for PT_STDCALL everywhere; remove warning supression.
-	* (errno): Fix the longstanding "inconsistent dll linkage" problem
-	with errno; now also works with /MD debugging libs - 
-	warnings emerged when compiling pthreads library with /MD (or /MDd)
-	compiler switch, instead of /MT (or /MTd) (i.e. when compiling pthreads
-	using Multithreaded DLL CRT instead of Multithreaded statically linked
-	CRT).
-	* create.c (pthread_create): Likewise; fix typo.
-	* private.c (ptw32_threadStart): Eliminate use of terminate() which doesn't
-	throw exceptions.
-	* Remove unnecessary #includes from a number of modules -
-	[I had to #include malloc.h in implement.h for gcc - rpj].
-
-2001-05-29  Thomas Pfaff <tpfaff at gmx.net>
-
-	* pthread.h (PTHREAD_MUTEX_DEFAULT): New; equivalent to
-	PTHREAD_MUTEX_DEFAULT_NP.
-	* (PTHREAD_MUTEX_NORMAL): Similarly.
-	* (PTHREAD_MUTEX_ERRORCHECK): Similarly.
-	* (PTHREAD_MUTEX_RECURSIVE): Similarly.
-	* (pthread_mutex_setdefaultkind_np): New; Linux compatibility stub
-	for pthread_mutexattr_settype.
-	* (pthread_mutexattr_getkind_np): New; Linux compatibility stub
-	for pthread_mutexattr_gettype.
-	* mutex.c (pthread_mutexattr_settype): New; allow
-	the following types of mutex:
-	  PTHREAD_MUTEX_DEFAULT_NP
-	  PTHREAD_MUTEX_NORMAL_NP
-	  PTHREAD_MUTEX_ERRORCHECK_NP
-	  PTHREAD_MUTEX_RECURSIVE_NP
-	* Note that PTHREAD_MUTEX_DEFAULT is equivalent to
-	PTHREAD_MUTEX_NORMAL - ie. mutexes should no longer
-	be recursive by default, and a thread will deadlock if it
-	tries to relock a mutex it already owns. This is inline with
-	other pthreads implementations.
-	* (pthread_mutex_lock): Process the lock request
-	according to the mutex type.
-	* (pthread_mutex_init): Eliminate use of Win32 mutexes as the
-	basis of POSIX mutexes - instead, a combination of one critical section
-	and one semaphore are used in conjunction with Win32 Interlocked* routines.
-	* (pthread_mutex_destroy): Likewise.
-	* (pthread_mutex_lock): Likewise.
-	* (pthread_mutex_trylock): Likewise.
-	* (pthread_mutex_unlock): Likewise.
-	* Use longjmp/setjmp to implement cancelation when building the library
-	using a C compiler which doesn't support exceptions, e.g. gcc -x c (note
-	that gcc -x c++ uses exceptions).
-	* Also fixed some of the same typos and eliminated PT_STDCALL as
-	Milan Gardian's patches above.
-
-2001-02-07  Alexander Terekhov <TEREKHOV at de.ibm.com>
-
-	* rwlock.c: Revamped.
-	* implement.h (pthread_rwlock_t_): Redefined.
-	This implementation does not have reader/writer starvation problem.
-	Rwlock attempts to behave more like a normal mutex with
-	races and scheduling policy determining who is more important;
-	It also supports recursive locking,
-	has less synchronization overhead (no broadcasts at all,
-	readers are not blocked on any condition variable) and seem to
-	be faster than the current implementation [W98 appears to be
-	approximately 15 percent faster at least - on top of speed increase
-	from Thomas Pfaff's changes to mutex.c - rpj].
-
-2000-12-29  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* Makefile: Back-out "for" loops which don't work.
-
-	* GNUmakefile: Remove the fake.a target; add the "realclean"
-	target; don't remove built libs under the "clean" target.
-
-	* config.h: Add a guard against multiple inclusion.
-
-	* semaphore.h: Add some defines from config.h to make
-	semaphore.h independent of config.h when building apps.
-
-	* pthread.h (_errno): Back-out previous fix until we know how to
-	fix it properly.
-
-	* implement.h (lockCount): Add missing element to pthread_mutex_t_.
-
-	* sync.c (pthread_join): Spelling fix in comment.
-
-	* private.c (ptw32_threadStart): Reset original termination
-	function (C++).
-	(ptw32_threadStart): Cleanup detached threads early in case
-	the library is statically linked.
-	(ptw32_callUserDestroyRoutines): Remove [SEH] __try block from
-	destructor call so that unhandled exceptions will be passed through
-	to the 	system; call terminate() from [C++] try block for the same
-	reason.
-
-	* tsd.c (pthread_getspecific): Add comment.
-
-	* mutex.c (pthread_mutex_init): Initialise new elements in
-	pthread_mutex_t.
-	(pthread_mutex_unlock): Invert "pthread_equal()" test.
-
-2000-12-28  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* semaphore.c (mode_t): Use ifndef HAVE_MODE_T to include definition.
-
-	* config.h.in (HAVE_MODE_T): Added.
-	(_UWIN): Start adding defines for the UWIN package.
-
-	* private.c (ptw32_threadStart): Unhandled exceptions are
-	now passed through to the system to deal with. This is consistent
-	with normal Windows behaviour. C++ applications may use
-	set_terminate() to override the default behaviour which is
-	to call ptw32_terminate(). Ptw32_terminate() cleans up some
-	POSIX thread stuff before calling the system default function
-	which calls abort(). The users termination function should conform
-	to standard C++ semantics which is to not return. It should
-	exit the thread (call pthread_exit()) or exit the application.
-	* private.c (ptw32_terminate): Added as the default set_terminate()
-	function. It calls the system default function after cleaning up
-	some POSIX thread stuff.
-
-	* implement.h (ptw32_try_enter_critical_section): Move
-	declaration.
-	* global.c (ptw32_try_enter_critical_section): Moved
-	from dll.c.
-	* dll.c: Move process and thread attach/detach code into
-	functions in nonportable.c.
-	* nonportable.c (pthread_win32_process_attach_np): Process
-	attach code from dll.c is now available to static linked
-	applications.
-	* nonportable.c (pthread_win32_process_detach_np): Likewise.
-	* nonportable.c (pthread_win32_thread_attach_np): Likewise.
-	* nonportable.c (pthread_win32_thread_detach_np): Likewise.
-
-	* pthread.h: Add new non-portable prototypes for static
-	linked applications.
-
-	* GNUmakefile (OPT): Increase optimisation flag and remove
-	debug info flag.
-
-	* pthread.def: Add new non-portable exports for static
-	linked applications.
-
-2000-12-11  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* FAQ: Update Answer 6 re getting a fully working
-	Mingw32 built library.
-
-2000-10-10  Steven Reddie <smr at essemer.com.au>
- 
-        * misc.c (pthread_self): Restore Win32 "last error"
-        cleared by TlsGetValue() call in
-        pthread_getspecific()
- 
-2000-09-20  Arthur Kantor <akantor at bexusa.com>
- 
-        * mutex.c (pthread_mutex_lock): Record the owner
-        of the mutex. This requires also keeping count of
-        recursive locks ourselves rather than leaving it
-        to Win32 since we need to know when to NULL the
-        thread owner when the mutex is unlocked.
-        (pthread_mutex_trylock): Likewise.
-        (pthread_mutex_unlock): Check that the calling
-        thread owns the mutex, decrement the recursive
-        lock count, and NULL the owner if zero. Return
-        EPERM if the mutex is owned by another thread.
-        * implement.h (pthread_mutex_t_): Add ownerThread
-        and lockCount members.
-
-2000-09-13  Jef Gearhart <jgearhart at tpssys.com>
-
-	* mutex.c (pthread_mutex_init): Call
-	TryEnterCriticalSection through the pointer
-	rather than directly so that the dll can load
-	on Windows versions that can't resolve the
-	function, eg. Windows 95
-
-2000-09-09  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* pthread.h (ctime_r): Fix arg.
-
-2000-09-08  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* GNUmakefile(_WIN32_WINNT=0x400): Define in CFLAGS;
-	doesn't seem to be needed though.
-
-	* cancel.c (pthread_cancel): Must get "self" through
-	calling pthread_self() which will ensure a POSIX thread
-	struct is built for non-POSIX threads; return an error
-	if this fails
-	- Ollie Leahy <ollie at mpt.ie>
-	(pthread_setcancelstate): Likewise.
-	(pthread_setcanceltype): Likewise.
-	* misc.c (ptw32_cancelable_wait): Likewise.
-
-	* private.c (ptw32_tkAssocCreate): Remove unused #if 0
-	wrapped code.
-
-	* pthread.h (ptw32_get_exception_services_code):
-	Needed to be forward declared unconditionally.
-
-2000-09-06  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* cancel.c (pthread_cancel): If called from the main
-	thread "self" would be NULL; get "self" via pthread_self()
-	instead of directly from TLS so that an implicit
-	pthread object is created.
-
-	* misc.c (pthread_equal): Strengthen test for NULLs.
-
-2000-09-02  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* condvar.c (ptw32_cond_wait_cleanup): Ensure that all
-	waking threads check if they are the last, and notify
-	the broadcaster if so - even if an error occurs in the
-	waiter.
-
-	* semaphore.c (_decrease_semaphore): Should be
-	a call to ptw32_decrease_semaphore.
-	(_increase_semaphore): Should be a call to
-	ptw32_increase_semaphore.
-
-	* misc.c (ptw32_cancelable_wait): Renamed from
-	CancelableWait.
-	* rwlock.c (_rwlock_check*): Renamed to
-	ptw32_rwlock_check*.
-	* mutex.c (_mutex_check*): Renamed to ptw32_mutex_check*.
-	* condvar.c (cond_timed*): Renamed to ptw32_cond_timed*.
-	(_cond_check*): Renamed to ptw32_cond_check*.
-	(cond_wait_cleanup*): Rename to ptw32_cond_wait_cleanup*.
-	(ptw32_cond_timedwait): Add comments.
-
-2000-08-22  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* private.c (ptw32_throw): Fix exception test;
-	move exceptionInformation declaration.
-
-	* tsd.c (pthread_key_create): newkey wrongly declared.
-
-	* pthread.h: Fix comment block.
-
-2000-08-18  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* mutex.c (pthread_mutex_destroy): Check that the mutex isn't
-	held; invalidate the mutex as early as possible to avoid
-	contention; not perfect - FIXME!
-
-	* rwlock.c (pthread_rwlock_init): Remove redundant assignment
-	to "rw".
-	(pthread_rwlock_destroy): Invalidate the rwlock before
-	freeing up any of it's resources - to avoid contention.
-
-	* private.c (ptw32_tkAssocCreate): Change assoc->lock
-	to use a dynamically initialised mutex - only consumes
-	a W32 mutex or critical section when first used,
-	not before.
-
-	* mutex.c (pthread_mutex_init): Remove redundant assignment
-	to "mx".
-	(pthread_mutexattr_destroy): Set attribute to NULL
-	before freeing it's memory - to avoid contention.
-
-	* implement.h (PTW32_EPS_CANCEL/PTW32_EPS_EXIT):
-	Must be defined for all compilers - used as generic
-	exception selectors by ptw32_throw().
-
-	* Several: Fix typos from scripted edit session
-	yesterday.
-
-	* nonportable.c (pthread_mutexattr_setforcecs_np):
-	Moved this function from mutex.c.
-	(pthread_getw32threadhandle_np): New function to
-	return the win32 thread handle that the POSIX
-	thread is using.
-	* mutex.c (pthread_mutexattr_setforcecs_np):
-	Moved to new file "nonportable.c".
-
-	* pthread.h (PTW32_BUILD): Only	redefine __except
-	and catch compiler keywords if we aren't building
-	the library (ie. PTW32_BUILD is not defined) - 
-	this is safer than defining and then undefining
-	if not building the library.
-	* implement.h: Remove __except and catch undefines.
-	* Makefile (CFLAGS): Define PTW32_BUILD.
-	* GNUmakefile (CFLAGS): Define PTW32_BUILD.
-
-	* All appropriate: Change Pthread_exception* to
-	ptw32_exception* to be consistent with internal
-	identifier naming.
-
-	* private.c (ptw32_throw): New function to provide
-	a generic exception throw for all internal
-	exceptions and EH schemes.
-	(ptw32_threadStart): pthread_exit() value is now
-	returned via the thread structure exitStatus
-	element.
-	* exit.c (pthread_exit): pthread_exit() value is now
-	returned via the thread structure exitStatus
-	element.
-	* cancel.c (ptw32_cancel_self): Now uses ptw32_throw.
-	(pthread_setcancelstate): Ditto.
-	(pthread_setcanceltype): Ditto.
-	(pthread_testcancel): Ditto.
-	(pthread_cancel): Ditto.
-	* misc.c (CancelableWait): Ditto.
-	* exit.c (pthread_exit): Ditto.
-	* All applicable: Change PTW32_ prefix to
-	PTW32_ prefix to remove leading underscores
-	from private library identifiers.
-
-2000-08-17  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* All applicable: Change _pthread_ prefix to
-	ptw32_ prefix to remove leading underscores
-	from private library identifiers (single
-	and double leading underscores are reserved in the
-	ANSI C standard for compiler implementations).
-
-	* tsd.c (pthread_create_key): Initialise temporary
-	key before returning it's address to avoid race
-	conditions.
-
-2000-08-13  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* errno.c: Add _MD precompile condition; thus far
-	had no effect when using /MD compile option but I
-	thnk it should be there.
-
-	* exit.c: Add __cplusplus to various #if lines;
-	was compiling SEH code even when VC++ had
-	C++ compile options.
-
-	* private.c: ditto.
-
-	* create.c (pthread_create): Add PT_STDCALL macro to
-	function pointer arg in _beginthread().
-
-	* pthread.h: PT_STDCALL really does need to be defined
-	in both this and impliment.h; don't set it to __cdecl
-	- this macro is only used to extend function pointer
-	casting for functions that will be passed as parameters.
-	(~PThreadCleanup): add cast and group expression.
-	(_errno): Add _MD compile conditional.
-	(PtW32NoCatchWarn): Change pragma message.
-
-	* implement.h: Move and change PT_STDCALL define.
-
-	* need_errno.h: Add _MD to compilation conditional.
-
-	* GNUmakefile: Substantial rewrite for new naming
-	convention; set for nil optimisation (turn it up
-	when we have a working library build; add target
-	"fake.a" to build a libpthreadw32.a from the VC++
-	built DLL pthreadVCE.dll.
-
-	* pthread.def (LIBRARY): Don't specify in the .def
-	file - it is specified on the linker command line
-	since we now use the same .def file for variously
-	named .dlls.
-
-	* Makefile: Substantial rewrite for new naming
-	convention; default nmake target only issues a
-	help message; run nmake with specific target
-	corresponding to the EH scheme being used.
-
-	* README: Update information; add naming convention
-	explanation.
-
-	* ANNOUNCE: Update information.
-
-2000-08-12  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* pthread.h: Add compile-time message when using
-	MSC_VER compiler and C++ EH to warn application
-	programmers to use PtW32Catch instead of catch(...)
-	if they want cancelation and pthread_exit to work.
-
-	* implement.h: Remove #include <semaphore.h>; we
-	use our own local semaphore.h.
-
-2000-08-10  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* cleanup.c (pthread_pop_cleanup): Remove _pthread
-	prefix from __except and catch keywords; implement.h
-	now simply undefines ptw32__except and
-	ptw32_catch if defined; VC++ was not textually
-	substituting ptw32_catch etc back to catch as
-	it was redefined; the reason for using the prefixed
-	version was to make it clear that it was not using
-	the pthread.h redefined catch keyword.
-
-	* private.c (ptw32_threadStart): Ditto.
-	(ptw32_callUserDestroyRoutines): Ditto.
-
-	* implement.h (ptw32__except): Remove #define.
-	(ptw32_catch): Remove #define.
-
-	* GNUmakefile (pthread.a): New target to build
-	libpthread32.a from pthread.dll using dlltool.
-
-	* buildlib.bat: Duplicate cl commands with args to
-	build C++ EH version of pthread.dll; use of .bat
-	files is redundant now that nmake compatible
-	Makefile is included; used as a kludge only now.
-
-	* Makefile: Localise some macros and fix up the clean:
-	target to extend it and work properly.
-
-	* CONTRIBUTORS: Add contributors.
-
-	* ANNOUNCE: Updated.
-
-	* README: Updated.
-
-2000-08-06  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* pthread.h: Remove #warning - VC++ doesn't accept it.
-
-2000-08-05  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* pthread.h (PtW32CatchAll): Add macro. When compiling
-	applications using VC++ with C++ EH rather than SEH
-	'PtW32CatchAll' must be used in place of any 'catch( ... )'
-	if the application wants pthread cancelation or
-	pthread_exit() to work.
-
-2000-08-03  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* pthread.h: Add a base class ptw32_exception for
-	library internal exceptions and change the "catch"
-	re-define macro to use it.
-
-2000-08-02  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* GNUmakefile (CFLAGS): Add -mthreads.
-	Add new targets to generate cpp and asm output.
-
-	* sync.c (pthread_join): Remove dead code.
-
-2000-07-25  Tristan Savatier <tristan at mpegtv.com>
-
-	* sched.c (sched_get_priority_max): Handle different WinCE and
-	Win32 priority values together.
-	(sched_get_priority_min): Ditto.
-
-2000-07-25  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* create.c (pthread_create): Force new threads to wait until
-	pthread_create has the new thread's handle; we also retain
-	a local copy of the handle for internal use until
-	pthread_create returns.
-
-	* private.c (ptw32_threadStart): Initialise ei[].
-	(ptw32_threadStart): When beginthread is used to start the
-	thread, force waiting until the creator thread had the 
-	thread handle.
-
-	* cancel.c (ptw32_cancel_thread): Include context switch
-	code for defined(_X86_) environments in addition to _M_IX86.
-
-	* rwlock.c (pthread_rwlock_destroy): Assignment changed
-	to avoid compiler warning.
-
-	* private.c (ptw32_get_exception_services_code): Cast
-	NULL return value to avoid compiler warning.
-
-	* cleanup.c (pthread_pop_cleanup): Initialise "cleanup" variable
-	to avoid compiler warnings.
-
-	* misc.c (ptw32_new): Change "new" variable to "t" to avoid
-	confusion with the C++ keyword of the same name.
-
-	* condvar.c (cond_wait_cleanup): Initialise lastWaiter variable.
-	(cond_timedwait): Remove unused local variables. to avoid
-	compiler warnings.
-
-	* dll.c (dllMain): Remove 2000-07-21 change - problem
-	appears to be in pthread_create().
-
-2000-07-22  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* tsd.c (pthread_key_create): If a destructor was given
-	and the pthread_mutex_init failed, then would try to
-	reference a NULL pointer (*key); eliminate this section of
-	code by using a dynamically initialised mutex
-	(PTHREAD_MUTEX_INITIALIZER).
-
-	* tsd.c (pthread_setspecific): Return an error if
-	unable to set the value; simplify cryptic conditional.
-
-	* tsd.c (pthread_key_delete): Locking threadsLock relied
-	on mutex_lock returning an error if the key has no destructor.
-	ThreadsLock is only initialised if the key has a destructor.
-	Making this mutex a static could reduce the number of mutexes
-	used by an application since it is actually created only at
-	first use and it's often destroyed soon after.
-	
-2000-07-22  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* FAQ: Added Q5 and Q6.
-
-2000-07-21  David Baggett <dmb at itasoftware.com>
-
-	* dll.c: Include resource leakage work-around. This is a
-	partial FIXME which doesn't stop all leakage. The real
-	problem needs to be found and fixed.
-
-2000-07-21  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>
-
-	* create.c (pthread_create): Set threadH to 0 (zero)
-	everywhere. Some assignments were using NULL. Maybe
-	it should be NULL everywhere - need to check. (I know
-	they are nearly always the same thing - but not by
-	definition.)
-
-	* misc.c (pthread_self): Try to catch NULL thread handles
-	at the point where they might be generated, even though
-	they should always be valid at this point.
-
-	* tsd.c (pthread_setspecific): return an error value if
-	pthread_self() returns NULL.
-
-	* sync.c (pthread_join): return an error value if
-	pthread_self() returns NULL.
-
-	* signal.c (pthread_sigmask): return an error value if
-	pthread_self() returns NULL.
-
-2000-03-02  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* attr.c (pthread_attr_init): Set default stacksize to zero (0)
-	rather than PTHREAD_STACK_MIN even though these are now the same.
-
-	* pthread.h (PTHREAD_STACK_MIN): Lowered to 0.
-
-2000-01-28  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* mutex.c (pthread_mutex_init): Free mutex if it has been alloced;
-	if critical sections can be used instead of Win32 mutexes, test
-	that the critical section works and return an error if not.
-
-2000-01-07  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* cleanup.c (pthread_pop_cleanup): Include SEH code only if MSC is not
-	compiling as C++.
-	(pthread_push_cleanup): Include SEH code only if MSC is not
-	compiling as C++.
-
-	* pthread.h: Include SEH code only if MSC is not
-	compiling as C++.
-
-	* implement.h: Include SEH code only if MSC is not
-	compiling as C++.
-
-	* cancel.c (ptw32_cancel_thread): Add _M_IX86 check.
-	(pthread_testcancel): Include SEH code only if MSC is not
-	compiling as C++.
-	(ptw32_cancel_self): Include SEH code only if MSC is not
-	compiling as C++.
-
-2000-01-06  Erik Hensema <erik.hensema at group2000.nl>
-
-	* Makefile: Remove inconsistencies in 'cl' args
-
-2000-01-04  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* private.c (ptw32_get_exception_services_code): New; returns
-	value of EXCEPTION_PTW32_SERVICES.
-	(ptw32_processInitialize): Remove initialisation of
-	ptw32_exception_services which is no longer needed.
-
-	* pthread.h (ptw32_exception_services): Remove extern.
-	(ptw32_get_exception_services_code): Add function prototype;
-	use this to return EXCEPTION_PTW32_SERVICES value instead of
-	using the ptw32_exception_services variable which I had
-	trouble exporting through pthread.def.
-
-	* global.c (ptw32_exception_services): Remove declaration.
-
-1999-11-22  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* implement.h: Forward declare ptw32_new();
-
-	* misc.c (ptw32_new): New; alloc and initialise a new pthread_t.
-	(pthread_self): New thread struct is generated 	by new routine
-	ptw32_new().
-
-	* create.c (pthread_create): New thread struct is generated
-	by new routine ptw32_new().
-
-1999-11-21  Ross Johnson  <rpj at special.ise.canberra.edu.au>
-
-	* global.c (ptw32_exception_services): Declare new variable. 
-
-	* private.c (ptw32_threadStart): Destroy thread's
-	cancelLock mutex; make 'catch' and '__except' usageimmune to
-	redfinitions in pthread.h.
-	(ptw32_processInitialize): Init new constant ptw32_exception_services.
-
-	* create.c (pthread_create): Initialise thread's cancelLock
-	mutex.
-
-	* cleanup.c (pthread_pop_cleanup): Make 'catch' and '__except'
-	usage immune to redfinition s in pthread.h.
-
-	* private.c: Ditto.
-
-	* pthread.h (catch): Redefine 'catch' so that C++ applications
-	won't catch our internal exceptions.
-	(__except): ditto for __except.
-
-	* implement.h (ptw32_catch): Define internal version
-	of 'catch' because 'catch' is redefined by pthread.h.
-	(__except): ditto for __except.
-	(struct pthread_t_): Add cancelLock mutex for async cancel
-	safety.
-
-1999-11-21  Jason Nye <jnye at nbnet.nb.ca>, Erik Hensema <erik.hensema at group2000.nl>
-
-	* cancel.c (ptw32_cancel_self): New; part of the async
-	cancellation implementation.
-	(ptw32_cancel_thread): Ditto; this function is X86
-	processor specific.
-	(pthread_setcancelstate): Add check for pending async
-	cancel request and cancel the calling thread if
-	required; add async-cancel safety lock.
-	(pthread_setcanceltype): Ditto.
-
-1999-11-13  Erik Hensema <erik.hensema at group2000.nl>
-
-	* configure.in (AC_OUTPUT): Put generated output into GNUmakefile
-	rather than Makefile. Makefile will become the MSC nmake compatible
-	version
-
-1999-11-13  John Bossom (John.Bossom@cognos.com>
-
-	* misc.c (pthread_self): Add a note about GetCurrentThread
-	returning a pseudo-handle
-
-1999-11-10  Todd Owen <towen at lucidcalm.dropbear.id.au>
-
-	* dll.c (dllMain): Free kernel32 ASAP.
-	If TryEnterCriticalSection is not being used, then free
-	the kernel32.dll handle now, rather than leaving it until
-	DLL_PROCESS_DETACH.
-
-	Note: this is not a pedantic exercise in freeing unused
-	resources!  It is a work-around for a bug in Windows 95
-	(see microsoft knowledge base article, Q187684) which
-	does Bad Things when FreeLibrary is called within
-	the DLL_PROCESS_DETACH code, in certain situations.
-	Since w95 just happens to be a platform which does not
-	provide TryEnterCriticalSection, the bug will be
-	effortlessly avoided.
-
-1999-11-10  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* sync.c (pthread_join): Make it a deferred cancelation point.
-
-	* misc.c (pthread_self): Explicitly initialise implicitly
-	created thread state to default values.
-
-1999-11-05  Tristan Savatier <tristan at mpegtv.com>
-
-	* pthread.h (winsock.h): Include unconditionally.
-	(ETIMEDOUT): Change fallback value to that defined by winsock.h.
-	
-	* general: Patched for portability to WinCE. The details are
-	described in the file WinCE-PORT. Follow the instructions
-	in README.WinCE to make the appropriate changes in config.h.
-
-1999-10-30  Erik Hensema <erik.hensema at group2000.nl>
-
-	* create.c (pthread_create): Explicitly initialise thread state to
-	default values.
-
-	* cancel.c (pthread_setcancelstate): Check for NULL 'oldstate'
-	for compatibility with Solaris pthreads;
-	(pthread_setcanceltype): ditto:
-
-1999-10-23  Erik Hensema <erik.hensema at group2000.nl>
-
-	* pthread.h (ctime_r): Fix incorrect argument "_tm"
-
-1999-10-21  Aurelio Medina <aureliom at crt.com>
-
-	* pthread.h (_POSIX_THREADS): Only define it if it isn't
-	already defined. Projects may need to define this on
-	the CC command line under Win32 as it doesn't have unistd.h
-
-1999-10-17  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* rwlock.c (pthread_rwlock_destroy): Add cast to remove compile
-	warning.
-
-	* condvar.c (pthread_cond_broadcast): Only release semaphores
-	if there are waiting threads.
-
-1999-10-15  Lorin Hochstein <lmh at xiphos.ca>, Peter Slacik <Peter.Slacik at tatramed.sk>
-
-	* condvar.c (cond_wait_cleanup): New static cleanup handler for
-	cond_timedwait;
-	(cond_timedwait): pthread_cleanup_push args changed;
-	canceling a thread while it's in pthread_cond_wait
-	will now decrement the waiters count and cleanup if it's the
-	last waiter.
-
-1999-10-15  Graham Dumpleton <Graham.Dumpleton at ra.pad.otc.telstra.com.au>
-
-	* condvar.c (cond_wait_cleanup): the last waiter will now reset the CV's
-	wasBroadcast flag
-
-Thu Sep 16 1999  Ross Johnson  <rpj at swan.canberra.edu.au>
-
-	* rwlock.c (pthread_rwlock_destroy): Add serialisation.
-	(_rwlock_check_need_init): Check for detroyed rwlock.
-	* rwlock.c: Check return codes from _rwlock_check_need_init();
-	modify comments; serialise access to rwlock objects during
-	operations; rename rw_mutex to rw_lock.
-	* implement.h: Rename rw_mutex to rw_lock.
-	* mutex.c (pthread_mutex_destroy): Add serialisation.
-	(_mutex_check_need_init): Check for detroyed mutex.
-	* condvar.c (pthread_cond_destroy): Add serialisation.
-	(_cond_check_need_init): Check for detroyed condvar.
-	* mutex.c: Modify comments.
-	* condvar.c: Modify comments.
-
-1999-08-10  Aurelio Medina  <aureliom at crt.com>
-
-	* implement.h (pthread_rwlock_t_): Add.
-	* pthread.h (pthread_rwlock_t): Add.
-	(PTHREAD_RWLOCK_INITIALIZER): Add.
-	Add rwlock function prototypes.
-	* rwlock.c: New module.
-	* pthread.def: Add new rwlock functions.
-	* private.c (ptw32_processInitialize): initialise
-	ptw32_rwlock_test_init_lock critical section.
-	* global.c (ptw32_rwlock_test_init_lock): Add.
-
-	* mutex.c (pthread_mutex_destroy): Don't free mutex memory
-	if mutex is PTHREAD_MUTEX_INITIALIZER and has not been
-	initialised yet.
-
-1999-08-08 Milan Gardian <mg at tatramed.sk>
-
-	* mutex.c (pthread_mutex_destroy): Free mutex memory.
-
-1999-08-22  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* exit.c (pthread_exit): Fix reference to potentially
-	uninitialised pointer.
-
-1999-08-21  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* private.c (ptw32_threadStart): Apply fix of 1999-08-19
-	this time to C++ and non-trapped C versions. Ommitted to
-	do this the first time through.
-
-1999-08-19  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* private.c (ptw32_threadStart): Return exit status from
-	the application thread startup routine.
-	- Milan Gardian <mg at tatramed.sk>
-
-1999-08-18  John Bossom <john.Bossom at cognos.com>
-
-	* exit.c (pthread_exit): Put status into pthread_t->exitStatus
-	* private.c (ptw32_threadStart): Set pthread->exitStatus
-	on exit of try{} block.
-	* sync.c (pthread_join): use pthread_exitStatus value if the
-	thread exit doesn't return a value (for Mingw32 CRTDLL
-	which uses endthread instead of _endthreadex).
-
-Tue Aug 17 20:17:58 CDT 1999  Mumit Khan  <khan at xraylith.wisc.edu>
-
-        * create.c (pthread_create): Add CRTDLL suppport.
-        * exit.c (pthread_exit): Likewise.
-        * private.c (ptw32_threadStart): Likewise.
-        (ptw32_threadDestroy): Likewise.
-        * sync.c (pthread_join): Likewise.
-        * tests/join1.c (main): Warn about partial support for CRTDLL.
-
-Tue Aug 17 20:00:08 1999  Mumit Khan  <khan at xraylith.wisc.edu>
-
-        * Makefile.in (LD): Delete entry point.
-        * acconfig.h (STDCALL): Delete unused macro.
-        * configure.in: Remove test for STDCALL.
-        * config.h.in: Regenerate.
-        * errno.c (_errno): Fix self type.
-        * pthread.h (PT_STDCALL): Move from here to
-        * implement.h (PT_STDCALL): here.
-        (ptw32_threadStart): Fix prototype.
-        * private.c (ptw32_threadStart): Likewise.
-
-1999-08-14  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* exit.c (pthread_exit): Don't call pthread_self() but
-	get thread handle directly from TSD for efficiency.
-	
-1999-08-12  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* private.c (ptw32_threadStart): ei[] only declared if _MSC_VER.
-
-	* exit.c (pthread_exit): Check for implicitly created threads
-	to avoid raising an unhandled exception.
-	
-1999-07-12  Peter Slacik <Peter.Slacik at tatramed.sk>
-
-	* condvar.c (pthread_cond_destroy): Add critical section.
-	(cond_timedwait): Add critical section; check for timeout
-	waiting on semaphore.
-	(pthread_cond_broadcast): Add critical section.
-
-1999-07-09  Lorin Hochstein <lmh at xiphos.ca>, John Bossom <John.Bossom at Cognos.COM>
-
-	The problem was that cleanup handlers were not executed when
-	pthread_exit() was called.
-
-	* implement.h (pthread_t_): Add exceptionInformation element for
-	C++ per-thread exception information.
-	(general): Define and rename exceptions.
-
-1999-07-09  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* misc.c (CancelableWait):  PTW32_EPS_CANCEL (SEH) and
-	ptw32_exception_cancel (C++) used to identify the exception.
-
-	* cancel.c (pthread_testcancel): PTW32_EPS_CANCEL (SEH) and
-	ptw32_exception_cancel (C++) used to identify the exception.
-
-	* exit.c (pthread_exit): throw/raise an exception to return to
-	ptw32_threadStart() to exit the thread. PTW32_EPS_EXIT (SEH)
-	and ptw32_exception_exit (C++) used to identify the exception.
-
-	* private.c (ptw32_threadStart): Add pthread_exit exception trap;
-	clean up and exit the thread directly rather than via pthread_exit().
-
-Sun May 30 00:25:02 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* semaphore.h (mode_t): Conditionally typedef it.
-
-Fri May 28 13:33:05 1999  Mark E. Armstrong <avail at pacbell.net>
-
-	* condvar.c (pthread_cond_broadcast): Fix possible memory fault
-	
-Thu May 27 13:08:46 1999  Peter Slacik <Peter.Slacik at tatramed.sk>
-
-	* condvar.c (pthread_cond_broadcast): Fix logic bug
-
-Thu May 27 13:08:46 1999  Bossom, John <John.Bossom at Cognos.COM>
-
-	* condvar.c (pthread_cond_broadcast): optimise sem_post loop
-
-Fri May 14 12:13:18 1999  Mike Russo <miker at eai.com>
-
-	* attr.c (pthread_attr_setdetachstate): Fix logic bug
-
-Sat May  8 09:42:30 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* pthread.def (sem_open): Add.
-	(sem_close): Add.
-	(sem_unlink): Add.
-	(sem_getvalue): Add.
-
-	* FAQ (Question 3): Add.
-
-Thu Apr  8 01:16:23 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* semaphore.c (sem_open): New function; returns an error (ENOSYS).
-	(sem_close): ditto.
-	(sem_unlink): ditto.
-	(sem_getvalue): ditto.
-
-	* semaphore.h (_POSIX_SEMAPHORES): define.
-	
-Wed Apr  7 14:09:52 1999  Ross Johnson  <rpj at swan.canberra.edu.au>
-
-	* errno.c (_REENTRANT || _MT): Invert condition.
-
-	* pthread.h (_errno): Conditionally include prototype.
-
-Wed Apr  7 09:37:00 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* *.c (comments): Remove individual attributions - these are
-	documented sufficiently elsewhere.
-
-	* implement.h (pthread.h): Remove extraneous include.
-
-Sun Apr  4 11:05:57 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* sched.c (sched.h): Include.
-
-	* sched.h: New file for POSIX 1b scheduling.
-
-	* pthread.h: Move opaque structures to implement.h; move sched_*
-	prototypes out and into sched.h.
-
-	* implement.h: Add opaque structures from pthread.h.
-
-	* sched.c (sched_yield): New function.
-
-	* condvar.c (ptw32_sem_*): Rename to sem_*; except for
-	ptw32_sem_timedwait which is an private function.
-
-Sat Apr  3 23:28:00 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* Makefile.in (OBJS): Add errno.o.
-
-Fri Apr  2 11:08:50 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* implement.h (ptw32_sem_*): Remove prototypes now defined in
-	semaphore.h.
-
-	* pthread.h (sempahore.h): Include.
-
-	* semaphore.h: New file for POSIX 1b semaphores.
-
-	* semaphore.c (ptw32_sem_timedwait): Moved to private.c.
-
-	* pthread.h (ptw32_sem_t): Change to sem_t. 
-
-	* private.c (ptw32_sem_timedwait): Moved from semaphore.c;
-	set errno on error.
-
-	* pthread.h (pthread_t_): Add per-thread errno element.
-
-Fri Apr  2 11:08:50 1999  John Bossom <jebossom at cognos.com>
-
-	* semaphore.c (ptw32_sem_*): Change to sem_*; these functions
-	will be exported from the library; set errno on error.
-
-	* errno.c (_errno): New file. New function.
-
-Fri Mar 26 14:11:45 1999  Tor Lillqvist <tml at iki.fi>
-
-	* semaphore.c (ptw32_sem_timedwait): Check for negative
-	milliseconds.
-
-Wed Mar 24 11:32:07 1999  John Bossom <jebossom at cognos.com>
-
-	* misc.c (CancelableWait): Initialise exceptionInformation[2].
-	(pthread_self): Get a real Win32 thread handle for implicit threads.
-
-	* cancel.c (pthread_testcancel): Initialise exceptionInformation[2].
-
-	* implement.h (SE_INFORMATION): Fix values.
-
-	* private.c (ptw32_threadDestroy): Close the thread handle.
-
-Fri Mar 19 12:57:27 1999  Ross Johnson  <rpj at swan.canberra.edu.au>
-
-	* cancel.c (comments): Update and cleanup.
-
-Fri Mar 19 09:12:59 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* private.c (ptw32_threadStart): status returns PTHREAD_CANCELED.
-
-	* pthread.h (PTHREAD_CANCELED): defined.
-
-Tue Mar 16  1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* all: Add GNU LGPL and Copyright and Warranty.
-	
-Mon Mar 15 00:20:13 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* condvar.c (pthread_cond_init): fix possible uninitialised use
-	of cv.
-
-Sun Mar 14 21:01:59 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* condvar.c (pthread_cond_destroy): don't do full cleanup if
-	static initialised cv has never been used.
-	(cond_timedwait): check result of auto-initialisation.
-
-Thu Mar 11 09:01:48 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* pthread.h (pthread_mutex_t): revert to (pthread_mutex_t *);
-	define a value to serve as PTHREAD_MUTEX_INITIALIZER.
-	(pthread_mutex_t_): remove staticinit and valid elements.
-	(pthread_cond_t): revert to (pthread_cond_t_ *);
-	define a value to serve as PTHREAD_COND_INITIALIZER.
-	(pthread_cond_t_): remove staticinit and valid elements.
-
-	* mutex.c (pthread_mutex_t args): adjust indirection of references.
-	(all functions): check for PTHREAD_MUTEX_INITIALIZER value;
-	check for NULL (invalid).
-
-	* condvar.c (pthread_cond_t args): adjust indirection of references.
-	(all functions): check for PTHREAD_COND_INITIALIZER value;
-	check for NULL (invalid).
-
-Wed Mar 10 17:18:12 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* misc.c (CancelableWait): Undo changes from Mar 8 and 7.
-
-Mon Mar  8 11:18:59 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* misc.c (CancelableWait): Ensure cancelEvent handle is the lowest
-	indexed element in the handles array. Enhance test for abandoned
-	objects.
-
-	* pthread.h (PTHREAD_MUTEX_INITIALIZER): Trailing elements not
-	initialised are set to zero by the compiler. This avoids the
-	problem of initialising the opaque critical section element in it.
-	(PTHREAD_COND_INITIALIZER): Ditto.
-
-	* semaphore.c (ptw32_sem_timedwait): Check sem == NULL earlier.
-
-Sun Mar  7 12:31:14 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* condvar.c (pthread_cond_init): set semaphore initial value
-	to 0, not 1. cond_timedwait was returning signaled immediately.
-
-	* misc.c (CancelableWait): Place the cancel event handle first
-	in the handle table for WaitForMultipleObjects. This ensures that
-	the cancel event is recognised and acted apon if both objects
-	happen to be signaled together.
-
-	* private.c (ptw32_cond_test_init_lock): Initialise and destroy.
-
-	* implement.h (ptw32_cond_test_init_lock): Add extern.
-
-	* global.c (ptw32_cond_test_init_lock): Add declaration. 
-
-	* condvar.c (pthread_cond_destroy): check for valid initialised CV;
-	flag destroyed CVs as invalid.
-	(pthread_cond_init): pthread_cond_t is no longer just a pointer.
-	This is because PTHREAD_COND_INITIALIZER needs state info to reside
-	in pthread_cond_t so that it can initialise on first use. Will work on
-	making pthread_cond_t (and other objects like it) opaque again, if
-	possible, later.
-	(cond_timedwait): add check for statically initialisation of
-	CV; initialise on first use.
-	(pthread_cond_signal): check for valid CV.
-	(pthread_cond_broadcast): check for valid CV.
-	(_cond_check_need_init): Add.
-
-	* pthread.h (PTHREAD_COND_INITIALIZER): Fix.
-	(pthread_cond_t): no longer a pointer to pthread_cond_t_.
-	(pthread_cond_t_): add 'staticinit' and 'valid' elements.
-
-Sat Mar 6 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* implement.h: Undate comments.
-
-Sun Feb 21 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* pthread.h (PTHREAD_MUTEX_INITIALIZER): missing braces around
-	cs element initialiser.
-
-1999-02-21  Ben Elliston  <bje at cygnus.com>
-
-	* pthread.h (pthread_exit): The return type of this function is
-	void, not int.
-
-	* exit.c (pthread_exit): Do not return 0.
-
-Sat Feb 20 16:03:30 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* dll.c (DLLMain): Expand TryEnterCriticalSection support test.
-
-	* mutex.c (pthread_mutex_trylock): The check for
-	ptw32_try_enter_critical_section == NULL should have been
-	removed long ago.
-
-Fri Feb 19 16:03:30 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* sync.c (pthread_join): Fix pthread_equal() test.
-
-	* mutex.c (pthread_mutex_trylock): Check mutex != NULL before
-	using it.
-
-Thu Feb 18 16:17:30 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* misc.c (pthread_equal): Fix inverted result.
-
-	* Makefile.in: Use libpthread32.a as the name of the DLL export
-	library instead of pthread.lib.
-
-	* condvar.c (pthread_cond_init): cv could have been used unitialised;
-	initialise.
-
-	* create.c (pthread_create): parms could have been used unitialised;
-	initialise.
-
-	* pthread.h (struct pthread_once_t_): Remove redefinition.
-
-Sat Feb 13 03:03:30 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* pthread.h (struct pthread_once_t_): Replaced.
-
-	* misc.c (pthread_once): Replace with John Bossom's version;
-	has lighter weight serialisation; fixes problem of not holding
-	competing threads until after the init_routine completes.
-
-Thu Feb 11 13:34:14 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* misc.c (CancelableWait): Change C++ exception throw.
-
-	* sync.c (pthread_join): Change FIXME comment - issue resolved.
-
-Wed Feb 10 12:49:11 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* configure: Various temporary changes.
-	- Kevin Ruland <Kevin.Ruland at anheuser-busch.com>
-
-	* README: Update.
-
-	* pthread.def (pthread_attr_getstackaddr): uncomment
-	(pthread_attr_setstackaddr): uncomment
-
-Fri Feb  5 13:42:30 1999  Ross Johnson  <rpj at swan.canberra.edu.au>
-
-	* semaphore.c: Comment format changes.
-
-Thu Feb  4 10:07:28 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* global.c: Remove ptw32_exception instantiation.
-
-	* cancel.c (pthread_testcancel): Change C++ exception throw.
-
-	* implement.h: Remove extern declaration.
-
-Wed Feb  3 13:04:44 1999  Ross Johnson  <rpj at swan.canberra.edu.au>
-
-	* cleanup.c: Rename ptw32_*_cleanup() to pthread_*_cleanup().
-
-	* pthread.def: Ditto.
-	
-	* pthread.h: Ditto.
-
-	* pthread.def (pthread_cleanup_push): Remove from export list;
-	the function is defined as a macro under all compilers.
-	(pthread_cleanup_pop): Ditto.
-
-	* pthread.h: Remove #if defined().
-
-Wed Feb  3 10:13:48 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* sync.c (pthread_join): Check for NULL value_ptr arg;
-	check for detached threads.
-
-Tue Feb  2 18:07:43 1999  Ross Johnson  <rpj at swan.canberra.edu.au>
-
-	* implement.h: Add #include <pthread.h>.
-	Change sem_t to ptw32_sem_t.
-
-Tue Feb  2 18:07:43 1999  Kevin Ruland <Kevin.Ruland at anheuser-busch.com>
-
-	* signal.c (pthread_sigmask): Add and modify casts.
-	Reverse LHS/RHS bitwise assignments.
-
-	* pthread.h: Remove #include <semaphore.h>.
-	(PTW32_ATTR_VALID): Add cast.
-	(struct pthread_t_): Add sigmask element.
-
-	* dll.c: Add "extern C" for DLLMain.
-	(DllMain): Add cast.
-
-	* create.c (pthread_create): Set sigmask in thread.
-
-	* condvar.c: Remove #include. Change sem_* to ptw32_sem_*.
-
-	* attr.c: Changed #include.
-
-	* Makefile.in: Additional targets and changes to build the library
-	as a DLL.
-
-Fri Jan 29 11:56:28 1999  Ross Johnson  <rpj at swan.canberra.edu.au>
-
-	* Makefile.in (OBJS): Add semaphore.o to list.
-
-	* semaphore.c (ptw32_sem_timedwait): Move from private.c.
-	Rename sem_* to ptw32_sem_*.
-
-	* pthread.h (pthread_cond_t): Change type of sem_t.
-	_POSIX_SEMAPHORES no longer defined.
-
-	* semaphore.h: Contents moved to implement.h.
-	Removed from source tree.
-
-	* implement.h: Add semaphore function prototypes and rename all
-	functions to prepend 'ptw32_'. They are
-	now private to the pthreads-win32 implementation.
-
-	* private.c: Change #warning.
-	Move ptw32_sem_timedwait() to semaphore.c.
-
-	* cleanup.c: Change #warning.
-
-	* misc.c: Remove #include <errno.h>
-
-	* pthread.def: Cleanup CVS merge conflicts.
-
-	* global.c: Ditto.
-
-	* ChangeLog: Ditto.
-
-	* cleanup.c: Ditto.
-
-Sun Jan 24 01:34:52 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* semaphore.c (sem_wait): Remove second arg to 
-	pthreadCancelableWait() call.
-
-Sat Jan 23 17:36:40 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* pthread.def: Add new functions to export list.
-
-	* pthread.h (PTHREAD_MUTEX_AUTO_CS_NP): New.
-	(PTHREAD_MUTEX_FORCE_CS_NP): New.
-
-	* README: Updated.
-
-Fri Jan 22 14:31:59 1999  Ross Johnson  <rpj at swan.canberra.edu.au>
-
-	* Makefile.in (CFLAGS): Remove -fhandle-exceptions. Not needed
-	with egcs. Add -g for debugging.
-
-	* create.c (pthread_create): Replace __stdcall with PT_STDCALL
-	macro. This is a hack and must be fixed.
-
-	* misc.c (CancelableWait): Remove redundant statement.
-
-	* mutex.c (pthread_mutexattr_init): Cast calloc return value.
-
-	* misc.c (CancelableWait): Add cast.
-	(pthread_self): Add cast.
-
-	* exit.c (pthread_exit): Add cast.
-
-	* condvar.c (pthread_condattr_init): Cast calloc return value.
-
-	* cleanup.c: Reorganise conditional compilation.
-
-	* attr.c (pthread_attr_init): Remove unused 'result'.
-	Cast malloc return value.
-
-	* private.c (ptw32_callUserDestroyRoutines): Redo conditional
-	compilation.
-
-	* misc.c (CancelableWait): C++ version uses 'throw'.
-
-	* cancel.c (pthread_testcancel): Ditto.
-
-	* implement.h (class ptw32_exception): Define for C++.
-
-	* pthread.h: Fix C, C++, and Win32 SEH condition compilation
-	mayhem around pthread_cleanup_* defines. C++ version now uses John
-	Bossom's cleanup handlers.
-	(pthread_attr_t): Make 'valid' unsigned.
-	Define '_timeb' as 'timeb' for Ming32.
-	Define PT_STDCALL as nothing for Mingw32. May be temporary.
-
-	* cancel.c (pthread_testcancel): Cast return value.
-
-Wed Jan 20 09:31:28 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* pthread.h (pthread_mutexattr_t): Changed to a pointer.
-
-	* mutex.c (pthread_mutex_init): Conditionally create Win32 mutex
-	- from John Bossom's implementation.
-	(pthread_mutex_destroy): Conditionally close Win32 mutex
-	- from John Bossom's implementation.
-	(pthread_mutexattr_init): Replaced by John Bossom's version.
-	(pthread_mutexattr_destroy): Ditto.
-	(pthread_mutexattr_getpshared): New function from John Bossom's
-	implementation.
-	(pthread_mutexattr_setpshared): New function from John Bossom's
-	implementation.
-
-Tue Jan 19 18:27:42 1999  Ross Johnson  <rpj at swan.canberra.edu.au>
-
-	* pthread.h (pthreadCancelableTimedWait): New prototype.
-	(pthreadCancelableWait): Remove second argument.
-
-	* misc.c (CancelableWait): New static function is 
-	pthreadCancelableWait() renamed.
-	(pthreadCancelableWait): Now just calls CancelableWait() with
-	INFINITE timeout.
-	(pthreadCancelableTimedWait): Just calls CancelableWait()
-	with passed in timeout.
-
-Tue Jan 19 18:27:42 1999  Scott Lightner <scott at curriculum.com>
-
-	* private.c (ptw32_sem_timedwait): 'abstime' arg really is
-	absolute time. Calculate relative time to wait from current
-	time before passing timeout to new routine 
-	pthreadCancelableTimedWait().
-
-Tue Jan 19 10:27:39 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* pthread.h (pthread_mutexattr_setforcecs_np): New prototype.
-	
-	* mutex.c (pthread_mutexattr_init): Init 'pshared' and 'forcecs'
-	attributes to 0.
-	(pthread_mutexattr_setforcecs_np): New function (not portable).
-
-	* pthread.h (pthread_mutex_t): 
-	Add 'mutex' element. Set to NULL in PTHREAD_MUTEX_INITIALIZER.
-	The pthread_mutex_*() routines will try to optimise performance
-	by choosing either mutexes or critical sections as the basis
-	for pthread mutexes for each indevidual mutex.
-	(pthread_mutexattr_t_): Add 'forcecs' element.
-	Some applications may choose to force use of critical sections
-	if they know that:-
-	     the mutex is PROCESS_PRIVATE and, 
-	         either the OS supports TryEnterCriticalSection() or
-	         pthread_mutex_trylock() will never be called on the mutex.
-	This attribute will be setable via a non-portable routine.
-
-	Note: We don't yet support PROCESS_SHARED mutexes, so the
-	implementation as it stands will default to Win32 mutexes only if
-	the OS doesn't support TryEnterCriticalSection. On Win9x, and early
-	versions of NT 'forcecs' will need to be set in order to get
-	critical section based mutexes.
-
-Sun Jan 17 12:01:26 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* pthread.h (PTHREAD_MUTEX_INITIALIZER): Init new 'staticinit'
-	value to '1' and existing 'valid' value to '1'.
-
-	* global.c (ptw32_mutex_test_init_lock): Add.
-
-	* implement.h (ptw32_mutex_test_init_lock.): Add extern.
-
-	* private.c (ptw32_processInitialize): Init critical section for
-	global lock used by _mutex_check_need_init().
-	(ptw32_processTerminate): Ditto (:s/Init/Destroy/).
-
-	* dll.c (dllMain): Move call to FreeLibrary() so that it is only
-	called once when the process detaches.
-
-	* mutex.c (_mutex_check_need_init): New static function to test
-	and init PTHREAD_MUTEX_INITIALIZER mutexes. Provides serialised
-	access to the internal state of the uninitialised static mutex. 
-	Called from pthread_mutex_trylock() and pthread_mutex_lock() which
-	do a quick unguarded test to check if _mutex_check_need_init()
-	needs to be called. This is safe as the test is conservative
- 	and is repeated inside the guarded section of 
-	_mutex_check_need_init(). Thus in all calls except the first
-	calls to lock static mutexes, the additional overhead to lock any
-	mutex is a single memory fetch and test for zero.
-
-	* pthread.h (pthread_mutex_t_): Add 'staticinit' member. Mutexes
-	initialised by PTHREAD_MUTEX_INITIALIZER aren't really initialised
-	until the first attempt to lock it. Using the 'valid'
-	flag (which flags the mutex as destroyed or not) to record this
-	information would be messy. It is possible for a statically
-	initialised mutex such as this to be destroyed before ever being
-	used.
-
-	* mutex.c (pthread_mutex_trylock): Call _mutex_check_need_init()
-	to test/init PTHREAD_MUTEX_INITIALIZER mutexes.
-	(pthread_mutex_lock): Ditto.
-	(pthread_mutex_unlock): Add check to ensure we don't try to unlock
-	an unitialised static mutex.
-	(pthread_mutex_destroy): Add check to ensure we don't try to delete
-	a critical section that we never created. Allows us to destroy
-	a static mutex that has never been locked (and hence initialised).
-	(pthread_mutex_init): Set 'staticinit' flag to 0 for the new mutex.
-
-Sun Jan 17 12:01:26 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* private.c (ptw32_sem_timedwait): Move from semaphore.c.
-
-	* semaphore.c : Remove redundant #includes.
-	(ptw32_sem_timedwait): Move to private.c.
-	(sem_wait): Add missing abstime arg to pthreadCancelableWait() call.
-
-Fri Jan 15 23:38:05 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* condvar.c (cond_timedwait): Remove comment.
-
-Fri Jan 15 15:41:28 1999  Ross Johnson  <rpj at swan.canberra.edu.au>
-
-	* pthread.h: Add new 'abstime' arg to pthreadCancelableWait()
-	prototype.
-
-	* condvar.c (cond_timedwait): New generalised function called by
-	both pthread_cond_wait() and pthread_cond_timedwait(). This is
-	essentially pthread_cond_wait() renamed and modified to add the
-	'abstime' arg and call the new ptw32_sem_timedwait() instead of
-	sem_wait().
-	(pthread_cond_wait): Now just calls the internal static
-	function cond_timedwait() with an INFINITE wait.
-	(pthread_cond_timedwait): Now implemented. Calls the internal
-	static function cond_timedwait().
-
-	* implement.h (ptw32_sem_timedwait): New internal function
-	prototype.
-
-	* misc.c (pthreadCancelableWait): Added new 'abstime' argument
-	to allow shorter than INFINITE wait.
-
-	* semaphore.c (ptw32_sem_timedwait): New function for internal
-	use.  This is essentially sem_wait() modified to add the
-        'abstime' arg and call the modified (see above)
-        pthreadCancelableWait().
-
-Thu Jan 14 14:27:13 1999  Ross Johnson  <rpj at swan.canberra.edu.au>
-
-	* cleanup.c: Correct _cplusplus to __cplusplus wherever used.
-
-	* Makefile.in: Add CC=g++ and add -fhandle-exceptions to CFLAGS.
-	The derived Makefile will compile all units of the package as C++
-	so that those which include try/catch exception handling should work
-	properly. The package should compile ok if CC=gcc, however, exception
-	handling will not be included and thus thread cancellation, for
- 	example, will not work.
-
-	* cleanup.c (ptw32_pop_cleanup): Add #warning to compile this
- 	file as C++ if using a cygwin32 environment. Perhaps the whole package
-	should be compiled using g++ under cygwin.
-
-	* private.c (ptw32_threadStart): Change #error directive
-	into #warning and bracket for __CYGWIN__ and derivative compilers.
-
-Wed Jan 13 09:34:52 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* build.bat: Delete old binaries before compiling/linking.
-
-Tue Jan 12 09:58:38 1999  Tor Lillqvist <tml at iki.fi>
-
-	* dll.c: The Microsoft compiler pragmas probably are more
-	appropriately protected by _MSC_VER than by _WIN32.
-
-	* pthread.h: Define ETIMEDOUT. This should be returned by
-	pthread_cond_timedwait which is not implemented yet as of
-	snapshot-1999-01-04-1305. It was implemented in the older version.
-	The Microsoft compiler pragmas probably are more appropriately
-	protected by _MSC_VER than by _WIN32.
-
-	* pthread.def: pthread_mutex_destroy was missing from the def file
-
-	* condvar.c (pthread_cond_broadcast): Ensure we only wait on threads
-	if there were any waiting on the condition.
-	I think pthread_cond_broadcast should do the WaitForSingleObject
-	only if cv->waiters > 0? Otherwise it seems to hang, at least in the
-	testg thread program from glib.
-
-Tue Jan 12 09:58:38 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* condvar.c (pthread_cond_timedwait): Fix function description
-	comments.
-
-	* semaphore.c (sem_post): Correct typo in comment.
-
-Mon Jan 11 20:33:19 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* pthread.h: Re-arrange conditional compile of pthread_cleanup-*
-	macros.
-
-	* cleanup.c (ptw32_push_cleanup): Provide conditional 
-	compile of cleanup->prev.
-
-1999-01-11  Tor Lillqvist <tml at iki.fi>
-
-	* condvar.c (pthread_cond_init): Invert logic when testing the
-	return value from calloc().
-
-Sat Jan  9 14:32:08 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* implement.h: Compile-time switch for CYGWIN derived environments
-	to use CreateThread instead of _beginthreadex. Ditto for ExitThread.
-	Patch provided by Anders Norlander  <anorland at hem2.passagen.se>.
-
-Tue Jan  5 16:33:04 1999  Ross Johnson  <rpj at swan.canberra.edu.au>
-
-	* cleanup.c (ptw32_pop_cleanup): Add C++ version of __try/__except
-	block. Move trailing "}" out of #ifdef _WIN32 block left there by
-	(rpj's) mistake.
-
-	* private.c: Remove #include <errno.h> which is included by pthread.h.
-
-1998-12-11  Ben Elliston  <bje at toilet.to.cygnus.com>
-
-	* README: Update info about subscribing to the mailing list.
-
-Mon Jan  4 11:23:40 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* all: No code changes, just cleanup.
-	- remove #if 0 /* Pre Bossom */ enclosed code.
-	- Remove some redundant #includes.
-	* pthread.h: Update implemented/unimplemented routines list.
-	* Tag the bossom merge branch getting ready to merge back to main
-	trunk.
-
-Tue Dec 29 13:11:16 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* implement.h: Move the following struct definitions to pthread.h:
-	pthread_t_, pthread_attr_t_, pthread_mutex_t_, pthread_mutex_t_,
-	pthread_mutexattr_t_, pthread_key_t_, pthread_cond_t_,
-	pthread_condattr_t_, pthread_once_t_.
-
-	* pthread.h: Add "_" prefix to pthread_push_cleanup and 
-	pthread_pop_cleanup internal routines, and associated struct and
-	typedefs.
-
-	* buildlib.bat: Add compile command for semaphore.c
-
-	* pthread.def: Comment out pthread_atfork routine name. 
-	Now unimplemented.
-
-	* tsd.c (pthread_setspecific): Rename tkAssocCreate to
-	ptw32_tkAssocCreate.
-	(pthread_key_delete): Rename tkAssocDestroy to
-	ptw32_tkAssocDestroy.
-
-	* sync.c (pthread_join): Rename threadDestroy to ptw32_threadDestroy
-
-	* sched.c (is_attr): attr is now **attr (was *attr), so add extra
-	NULL pointer test.
-	(pthread_attr_setschedparam): Increase redirection for attr which is
-	now a **.
-	(pthread_attr_getschedparam): Ditto.
-	(pthread_setschedparam): Change thread validation and rename "thread"
- 	Win32 thread Handle element name to match John Bossom's version.
-	(pthread_getschedparam): Ditto.
-
-	* private.c (ptw32_threadDestroy): Rename call to
-	callUserDestroyRoutines() as ptw32_callUserDestroyRoutines()
-
-	* misc.c: Add #include "implement.h".
-
-	* dll.c: Remove defined(KLUDGE) wrapped code.
-
-	* fork.c: Remove redefinition of ENOMEM.
-	Remove pthread_atfork() and fork() with #if 0/#endif.
-
-	* create.c (pthread_create): Rename threadStart and threadDestroy calls
-	to ptw32_threadStart and ptw32_threadDestroy.
-
-	* implement.h: Rename "detachedstate" to "detachstate".
-
-	* attr.c: Rename "detachedstate" to "detachstate".
-
-Mon Dec 28 09:54:39 1998  John Bossom
-
-	* semaphore.c: Initial version.
-	* semaphore.h: Initial version.
-
-Mon Dec 28 09:54:39 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* pthread.h (pthread_attr_t_): Change to *pthread_attr_t.
-
-Mon Dec 28 09:54:39 1998  John Bossom, Ben Elliston
-
-	* attr.c (pthread_attr_setstacksize): Merge with John's version.
-	(pthread_attr_getstacksize): Merge with John's version.
-	(pthread_attr_setstackaddr): Merge with John's version.
-	(pthread_attr_getstackaddr): Merge with John's version.
-	(pthread_attr_init): Merge with John's version.
-	(pthread_attr_destroy): Merge with John's version.
-	(pthread_attr_getdetachstate): Merge with John's version.
-	(pthread_attr_setdetachstate): Merge with John's version.
-	(is_attr): attr is now **attr (was *attr), so add extra NULL pointer
-	test.
-
-Mon Dec 28 09:54:39 1998  Ross Johnson
-
-	* implement.h (pthread_attr_t_): Add and rename elements in JEB's
-	version to correspond to original, so that it can be used with
-	original attr routines.
-
-	* pthread.h: Add #endif at end which was truncated in merging.
-
-Sun Dec 20 14:51:58 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* misc.c (pthreadCancelableWait): New function by John Bossom. Non-standard
-	but provides a hook that can be used to implement cancellation points in
-	applications that use this library.
-
-	* pthread.h (pthread_cleanup_pop): C++ (non-WIN32) version uses
-	try/catch to emulate John Bossom's WIN32 __try/__finally behaviour.
-	In the WIN32 version __finally block, add a test for AbnormalTermination otherwise
-	cleanup is only run if the cleanup_pop execute arg is non-zero. Cancellation
-	should cause the cleanup to run irrespective of the execute arg.
-
-	* condvar.c (pthread_condattr_init): Replaced by John Bossom's version.
-	(pthread_condattr_destroy): Replaced by John Bossom's version.
-	(pthread_condattr_getpshared): Replaced by John Bossom's version.
-	(pthread_condattr_setpshared): Replaced by John Bossom's version.
-	(pthread_cond_init): Replaced by John Bossom's version.
-	Fix comment (refered to mutex rather than condition variable).
-	(pthread_cond_destroy): Replaced by John Bossom's version.
-	(pthread_cond_wait): Replaced by John Bossom's version.
-	(pthread_cond_timedwait): Replaced by John Bossom's version.
-	(pthread_cond_signal): Replaced by John Bossom's version.
-	(pthread_cond_broadcast): Replaced by John Bossom's version.
-
-Thu Dec 17 19:10:46 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* tsd.c (pthread_key_create): Replaced by John Bossom's version.
-	(pthread_key_delete): Replaced by John Bossom's version.
-	(pthread_setspecific): Replaced by John Bossom's version.
-	(pthread_getspecific): Replaced by John Bossom's version.
-
-Mon Dec  7 09:44:40 1998  John Bossom
-
-	* cancel.c (pthread_setcancelstate): Replaced.
-	(pthread_setcanceltype): Replaced.
-	(pthread_testcancel): Replaced.
-	(pthread_cancel): Replaced.
-	
-	* exit.c (pthread_exit): Replaced.
-
-	* misc.c (pthread_self): Replaced.
-	(pthread_equal): Replaced.
-
-	* sync.c (pthread_detach): Replaced.
-	(pthread_join): Replaced.
-
-	* create.c (pthread_create): Replaced.
-
-	* private.c (ptw32_processInitialize): New.
-	(ptw32_processTerminate): New.
-	(ptw32_threadStart): New.
- 	(ptw32_threadDestroy): New.
-	(ptw32_cleanupStack): New.
-	(ptw32_tkAssocCreate): New.
-	(ptw32_tkAssocDestroy): New.
-	(ptw32_callUserDestroyRoutines): New.
-
-	* implement.h: Added non-API structures and declarations.
-
-	* dll.c (PthreadsEntryPoint): Cast return value of GetProcAddress
-	to resolve compile warning from MSVC.
-
-	* dll.c (DLLmain): Replaced.
-	* dll.c (PthreadsEntryPoint):
-	Re-applied Anders Norlander's patch:-
-	Initialize ptw32_try_enter_critical_section at startup
-	and release kernel32 handle when DLL is being unloaded.
-
-Sun Dec  6 21:54:35 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* buildlib.bat: Fix args to CL when building the .DLL
-
-	* cleanup.c (ptw32_destructor_run_all): Fix TSD key management.
-	This is a tidy-up before TSD and Thread management is completely
-	replaced by John Bossom's code.
-
-	* tsd.c (pthread_key_create): Fix TSD key management.
-
-	* global.c (ptw32_key_virgin_next): Initialise.
-
-	* build.bat: New DOS script to compile and link a pthreads app
-	using Microsoft's CL compiler linker.
-	* buildlib.bat: New DOS script to compile all the object files
-	and create pthread.lib and pthread.dll using Microsoft's CL
-	compiler linker.
-
-1998-12-05  Anders Norlander  <anorland at hem2.passagen.se>
-
-	* implement.h (ptw32_try_enter_critical_section): New extern
-	* dll.c (ptw32_try_enter_critical_section): New pointer to
-	TryEnterCriticalSection if it exists; otherwise NULL.
-	* dll.c (PthreadsEntryPoint):
-	Initialize ptw32_try_enter_critical_section at startup
-	and release kernel32 handle when DLL is being unloaded.
-	* mutex.c (pthread_mutex_trylock): Replaced check for NT with
-	a check if ptw32_try_enter_critical_section is valid
-	pointer to a function. Call ptw32_try_enter_critical_section
-	instead of TryEnterCriticalSection to avoid errors on Win95.
-
-Thu Dec 3 13:32:00 1998  Ross Johnson  <rpj at ise.canberra.edu.au>
-
-	* README: Correct cygwin32 compatibility statement.
-
-Sun Nov 15 21:24:06 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* cleanup.c (ptw32_destructor_run_all): Declare missing void * arg.
-	Fixup CVS merge conflicts.
-
-1998-10-30  Ben Elliston  <bje at cygnus.com>
-
-	* condvar.c (cond_wait): Fix semantic error. Test for equality
-	instead of making an assignment.
-
-Fri Oct 30 15:15:50 1998  Ross Johnson  <rpj at swan.canberra.edu.au>
-
-	* cleanup.c (ptw32_handler_push): Fixed bug appending new
-	handler to list reported by Peter Slacik
-	<Peter.Slacik at leibinger.freinet.de>.
-	(new_thread): Rename poorly named local variable to
-	"new_handler".
-
-Sat Oct 24 18:34:59 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* global.c: Add TSD key management array and index declarations.
-
-	* implement.h: Ditto for externs.
-
-Fri Oct 23 00:08:09 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* implement.h (PTW32_TSD_KEY_REUSE): Add enum.
-
-	* private.c (ptw32_delete_thread): Add call to
-	ptw32_destructor_run_all() to clean up the threads keys.
-
-	* cleanup.c (ptw32_destructor_run_all): Check for no more dirty
-	keys to run destructors on. Assume that the destructor call always
-	succeeds and set the key value to NULL.
-
-Thu Oct 22 21:44:44 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* tsd.c (pthread_setspecific): Add key management code.
-	(pthread_key_create): Ditto.
-	(pthread_key_delete): Ditto.
-
-	* implement.h (struct ptw32_tsd_key): Add status member.
-
-	* tsd.c: Add description of pthread_key_delete() from the
-	standard as a comment.
-
-Fri Oct 16 17:38:47 1998  Ross Johnson  <rpj at swan.canberra.edu.au>
-
-	* cleanup.c (ptw32_destructor_run_all): Fix and improve
-	stepping through the key table.
-
-Thu Oct 15 14:05:01 1998  Ross Johnson  <rpj at swan.canberra.edu.au>
-
-	* private.c (ptw32_new_thread): Remove init of destructorstack.
-	No longer an element of pthread_t.
-
-	* tsd.c (pthread_setspecific): Fix type declaration and cast.
-	(pthread_getspecific): Ditto.
-	(pthread_getspecific): Change error return value to NULL if key
-	is not in use.
-
-Thu Oct 15 11:53:21 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* global.c (ptw32_tsd_key_table): Fix declaration.
-
-	* implement.h(ptw32_TSD_keys_TlsIndex): Add missing extern.
-	(ptw32_tsd_mutex): Ditto.
-
-	* create.c (ptw32_start_call): Fix "keys" array declaration.
-	Add comment.
-
-	* tsd.c (pthread_setspecific): Fix type declaration and cast.
-	(pthread_getspecific): Ditto.
-
-	* cleanup.c (ptw32_destructor_run_all): Declare missing loop
-	counter.
-
-Wed Oct 14 21:09:24 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* private.c (ptw32_new_thread): Increment ptw32_threads_count.
-	(ptw32_delete_thread): Decrement ptw32_threads_count.
-	Remove some comments.
-
-	* exit.c (ptw32_exit): : Fix two pthread_mutex_lock() calls that
- 	should have been pthread_mutex_unlock() calls.
-	(ptw32_vacuum): Remove call to ptw32_destructor_pop_all().
-
-	* create.c (pthread_create): Fix two pthread_mutex_lock() calls that
- 	should have been pthread_mutex_unlock() calls.
-
-	* global.c (ptw32_tsd_mutex): Add mutex for TSD operations.
-
-	* tsd.c (pthread_key_create): Add critical section.
-	(pthread_setspecific): Ditto.
-	(pthread_getspecific): Ditto.
-	(pthread_key_delete): Ditto.
-
-	* sync.c (pthread_join): Fix two pthread_mutex_lock() calls that
- 	should have been pthread_mutex_unlock() calls.
-
-Mon Oct 12 00:00:44 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* implement.h (ptw32_tsd_key_table): New.
-
-	* create.c (ptw32_start_call): Initialise per-thread TSD keys
-	to NULL.
-
-	* misc.c (pthread_once): Correct typo in comment.
-
-	* implement.h (ptw32_destructor_push): Remove.
-	(ptw32_destructor_pop): Remove.
-	(ptw32_destructor_run_all): Rename from ptw32_destructor_pop_all.
-	(PTW32_TSD_KEY_DELETED): Add enum.
-	(PTW32_TSD_KEY_INUSE): Add enum.
-
-	* cleanup.c (ptw32_destructor_push): Remove.
-	(ptw32_destructor_pop): Remove.
-	(ptw32_destructor_run_all): Totally revamped TSD.
-
-	* dll.c (ptw32_TSD_keys_TlsIndex): Initialise.
-
-	* tsd.c (pthread_setspecific): Totally revamped TSD.
-	(pthread_getspecific): Ditto.
-	(pthread_create): Ditto.
-	(pthread_delete): Ditto.
-
-Sun Oct 11 22:44:55 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* global.c (ptw32_tsd_key_table): Add new global.
-
-	* implement.h (ptw32_tsd_key_t and struct ptw32_tsd_key):
-	Add.
-	(struct _pthread): Remove destructorstack.
-
-	* cleanup.c (ptw32_destructor_run_all): Rename from
- 	ptw32_destructor_pop_all. The key destructor stack was made
- 	global rather than per-thread. No longer removes destructor nodes
-	from the stack. Comments updated.
-
-1998-10-06  Ben Elliston  <bje at cygnus.com>
-
-	* condvar.c (cond_wait): Use POSIX, not Win32 mutex calls.
-	(pthread_cond_broadcast): Likewise.
-	(pthread_cond_signal): Likewise.
-
-1998-10-05  Ben Elliston  <bje at cygnus.com>
-
-	* pthread.def: Update. Some functions aren't available yet, others
-	are macros in <pthread.h>.
-
-	* tests/join.c: Remove; useless.
-
-Mon Oct  5 14:25:08 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* pthread.def: New file for building the DLL.
-
-1998-10-05  Ben Elliston  <bje at cygnus.com>
-
-	* misc.c (pthread_equal): Correct inverted logic bug.
-	(pthread_once): Use the POSIX mutex primitives, not Win32. Remove
-	irrelevant FIXME comment.
-
-	* global.c (PTHREAD_MUTEX_INITIALIZER): Move to pthread.h.
-
-	* pthread.h (PTHREAD_MUTEX_INITIALIZER): Define.
-	(pthread_mutex_t): Reimplement as a struct containing a valid
-	flag. If the flag is ever down upon entry to a mutex operation,
-	we call pthread_mutex_create() to initialise the object. This
-	fixes the problem of how to handle statically initialised objects
-	that can't call InitializeCriticalSection() due to their context.
-	(PTHREAD_ONCE_INIT): Define.
-
-	* mutex.c (pthread_mutex_init): Set valid flag.
-	(pthread_mutex_destroy): Clear valid flag.
-	(pthread_mutex_lock): Check and handle the valid flag.
-	(pthread_mutex_unlock): Likewise.
-	(pthread_mutex_trylock): Likewise.
-
-	* tests/mutex3.c: New file; test for the static initialisation
-	macro. Passes.
-
-	* tests/create1.c: New file; test pthread_create(). Passes.
-	
-	* tests/equal.c: Poor test; remove.
-	
-	* tests/equal1.c New file; test pthread_equal(). Passes.
-
-	* tests/once1.c: New file; test for pthread_once(). Passes.
-
-	* tests/self.c: Remove; rename to self1.c.
-
-	* tests/self1.c: This is the old self.c.
-
-	* tests/self2.c: New file. Test pthread_self() with a single
-	thread. Passes.
-
-	* tests/self3.c: New file. Test pthread_self() with a couple of
-	threads to ensure their thread IDs differ. Passes.
-	
-1998-10-04  Ben Elliston  <bje at cygnus.com>
-
-	* tests/mutex2.c: Test pthread_mutex_trylock(). Passes.
-
-	* tests/mutex1.c: New basic test for mutex functions (it passes).
-	(main): Eliminate warning.
-
-	* configure.in: Test for __stdcall, not _stdcall. Typo.
-
-	* configure: Regenerate.
-
-	* attr.c (pthread_attr_setstackaddr): Remove FIXME comment. Win32
-	does know about ENOSYS after all.
-	(pthread_attr_setstackaddr): Likewise.
-
-1998-10-03  Ben Elliston  <bje at cygnus.com>
-
-	* configure.in: Test for the `_stdcall' keyword.  Define `STDCALL'
-	to `_stdcall' if we have it, null otherwise.
-
-	* configure: Regenerate.
-
-	* acconfig.h (STDCALL): New define.
-
-	* config.h.in: Regenerate.
-
-	* create.c (ptw32_start_call): Add STDCALL prefix.
-	
-	* mutex.c (pthread_mutex_init): Correct function signature.
-
-	* attr.c (pthread_attr_init): Only zero out the `sigmask' member
-	if we have the sigset_t type.
-
-	* pthread.h: No need to include <unistd.h>.  It doesn't even exist
-	on Win32! Again, an artifact of cross-compilation.	
-	(pthread_sigmask): Only provide if we have the sigset_t type.
-
-	* process.h: Remove. This was a stand-in before we started doing
-	native compilation under Win32.
-
-	* pthread.h (pthread_mutex_init): Make `attr' argument const.
-
-1998-10-02  Ben Elliston  <bje at cygnus.com>
-
-	* COPYING: Remove.
-
-	* COPYING.LIB: Add. This library is under the LGPL.
-
-1998-09-13  Ben Elliston  <bje at cygnus.com>
-
-	* configure.in: Test for required system features.
-
-	* configure: Generate. 
-
-	* acconfig.h: New file.
-
-	* config.h.in: Generate.
-
-	* Makefile.in: Renamed from Makefile.
-
-	* COPYING: Import from a recent GNU package.
-
-	* config.guess: Likewise.
-
-	* config.sub: Likewise.
-
-	* install-sh: Likewise.
-
-	* config.h: Remove.  
-
-	* Makefile: Likewise.
-
-1998-09-12  Ben Elliston  <bje at cygnus.com>
-
-	* windows.h: No longer needed; remove.
-
-	* windows.c: Likewise.
-
-Sat Sep 12 20:09:24 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* windows.h: Remove error number definitions. These are in <errno.h>
-	
-	* tsd.c: Add comment explaining rationale for not building
-	POSIX TSD on top of Win32 TLS.
-
-1998-09-12  Ben Elliston  <bje at cygnus.com>
-
-	* {most}.c: Include <errno.h> to get POSIX error values.
-
-	* signal.c (pthread_sigmask): Only provide if HAVE_SIGSET_T is
-	defined.
- 
-	* config.h: #undef features, don't #define them.  This will be
-	generated by autoconf very soon.
-	
-1998-08-11  Ben Elliston  <bje at cygnus.com>
-
-	* Makefile (LIB): Define.
-	(clean): Define target.
-	(all): Build a library not just the object files.
-
-	* pthread.h: Provide a definition for struct timespec if we don't
-	already have one.
-
-	* windows.c (TlsGetValue): Bug fix.
-	
-Thu Aug  6 15:19:22 1998  Ross Johnson  <rpj at swan.canberra.edu.au>
-
-	* misc.c (pthread_once): Fix arg 1 of EnterCriticalSection()
- 	and LeaveCriticalSection() calls to pass address-of lock.
-
-	* fork.c (pthread_atfork): Typecast (void (*)(void *)) funcptr
-	in each ptw32_handler_push() call.
-
-	* exit.c (ptw32_exit): Fix attr arg in 
-	pthread_attr_getdetachstate() call.
-
-	* private.c (ptw32_new_thread): Typecast (HANDLE) NULL.
-	(ptw32_delete_thread): Ditto.
-
-	* implement.h: (PTW32_MAX_THREADS): Add define. This keeps
-	changing in an attempt to make thread administration data types
-	opaque and cleanup DLL startup.
-
-	* dll.c (PthreadsEntryPoint): 
-	(ptw32_virgins): Remove malloc() and free() calls.
-	(ptw32_reuse): Ditto.
-	(ptw32_win32handle_map): Ditto.
-	(ptw32_threads_mutex_table): Ditto.
-
-	* global.c (_POSIX_THREAD_THREADS_MAX): Initialise with 
-	PTW32_MAX_THREADS.
-	(ptw32_virgins): Ditto.
-	(ptw32_reuse): Ditto.
-	(ptw32_win32handle_map): Ditto.
-	(ptw32_threads_mutex_table): Ditto.
-
-	* create.c (pthread_create): Typecast (HANDLE) NULL.
-	Typecast (unsigned (*)(void *)) start_routine.
-
-	* condvar.c (pthread_cond_init): Add address-of operator & to
-	arg 1 of pthread_mutex_init() call.
-	(pthread_cond_destroy): Add address-of operator & to
-	arg 1 of pthread_mutex_destroy() call. 
-
-	* cleanup.c (ptw32_destructor_pop_all): Add (int) cast to 
-	pthread_getspecific() arg.
-	(ptw32_destructor_pop): Add (void *) cast to "if" conditional.
-	(ptw32_destructor_push): Add (void *) cast to
-	ptw32_handler_push() "key" arg.
-	(malloc.h): Add include.
-
-	* implement.h (ptw32_destructor_pop): Add prototype.
-
-	* tsd.c (implement.h): Add include.
-
-	* sync.c (pthread_join): Remove target_thread_mutex and it's
-	initialisation. Rename getdetachedstate to getdetachstate.
-	Remove unused variable "exitcode".
-	(pthread_detach): Remove target_thread_mutex and it's
-	initialisation. Rename getdetachedstate to getdetachstate.
-	Rename setdetachedstate to setdetachstate.
-
-	* signal.c (pthread_sigmask): Rename SIG_SET to SIG_SETMASK.
-	Cast "set" to (long *) in assignment to passify compiler warning.
-	Add address-of operator & to thread->attr.sigmask in memcpy() call
-	and assignment.
-	(pthread_sigmask): Add address-of operator & to thread->attr.sigmask
-	in memcpy() call and assignment.
-
-	* windows.h (THREAD_PRIORITY_ERROR_RETURN): Add.
-	(THREAD_PRIORITY_LOWEST): Add.
-	(THREAD_PRIORITY_HIGHEST): Add.
-
-	* sched.c (is_attr): Add function.
-	(implement.h): Add include.
-	(pthread_setschedparam): Rename all instances of "sched_policy"
-	to "sched_priority".
-	(pthread_getschedparam): Ditto.
-
-Tue Aug  4 16:57:58 1998  Ross Johnson  <rpj at swan.canberra.edu.au>
-
-	* private.c (ptw32_delete_thread): Fix typo. Add missing ';'.
-
-	* global.c (ptw32_virgins): Change types from pointer to 
-	array pointer.
-	(ptw32_reuse): Ditto.
-	(ptw32_win32handle_map): Ditto.
-	(ptw32_threads_mutex_table): Ditto.
-
-	* implement.h(ptw32_virgins): Change types from pointer to 
-	array pointer.
-	(ptw32_reuse): Ditto.
-	(ptw32_win32handle_map): Ditto.
-	(ptw32_threads_mutex_table): Ditto.
-
-	* private.c (ptw32_delete_thread): Fix "entry" should be "thread".
-
-	* misc.c (pthread_self): Add extern for ptw32_threadID_TlsIndex.
-
-	* global.c: Add comment.
-
-	* misc.c (pthread_once): Fix member -> dereferences.
-	Change ptw32_once_flag to once_control->flag in "if" test.
-
-Tue Aug  4 00:09:30 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* implement.h(ptw32_virgins): Add extern.
-	(ptw32_virgin_next): Ditto.
-	(ptw32_reuse): Ditto.
-	(ptw32_reuse_top): Ditto.
-	(ptw32_win32handle_map): Ditto.
-	(ptw32_threads_mutex_table): Ditto.
-
-	* global.c (ptw32_virgins): Changed from array to pointer.
-	Storage allocation for the array moved into dll.c.
-	(ptw32_reuse): Ditto.
-	(ptw32_win32handle_map): Ditto.
-	(ptw32_threads_mutex_table): Ditto.
-
-	* dll.c (PthreadsEntryPoint): Set up thread admin storage when
-	DLL is loaded.
-
-	* fork.c (pthread_atfork): Fix function pointer arg to all
-	ptw32_handler_push() calls. Change "arg" arg to NULL in child push.
-
-	* exit.c: Add windows.h and process.h includes.
-	(ptw32_exit): Add local detachstate declaration.
-	(ptw32_exit): Fix incorrect name for pthread_attr_getdetachstate().
-
-	* pthread.h (_POSIX_THREAD_ATTR_STACKSIZE): Move from global.c
-	(_POSIX_THREAD_ATTR_STACKADDR): Ditto.
-
-	* create.c (pthread_create): Fix #if should be #ifdef.
-	(ptw32_start_call): Remove usused variables.
-
-	* process.h: Create.
-
-	* windows.h: Move _beginthreadex and _endthreadex into
-	process.h
-
-Mon Aug  3 21:19:57 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* condvar.c (pthread_cond_init): Add NULL attr to
-	pthread_mutex_init() call - default attributes will be used.
-	(cond_wait): Fix typo.
-	(cond_wait): Fix typo - cv was ev.
-	(pthread_cond_broadcast): Fix two identical typos.
-
-	* cleanup.c (ptw32_destructor_pop_all): Remove _ prefix from
-	PTHREAD_DESTRUCTOR_ITERATIONS.
-
-	* pthread.h: Move _POSIX_* values into posix.h
-
-	* pthread.h: Fix typo in pthread_mutex_init() prototype.
-
-	* attr.c (pthread_attr_init): Fix error in priority member init.
-
-	* windows.h (THREAD_PRIORITY_NORMAL): Add.
-
-	* pthread.h (sched_param): Add missing ';' to struct definition. 
-
-	* attr.c (pthread_attr_init): Remove obsolete pthread_attr_t
-	member initialisation - cancelstate, canceltype, cancel_pending.
-	(is_attr): Make arg "attr" a const.
-
-	* implement.h (PTW32_HANDLER_POP_LIFO): Remove definition.
-	(PTW32_HANDLER_POP_FIFO): Ditto.
-	(PTW32_VALID): Add missing newline escape (\).
-	(ptw32_handler_node): Make element "next" a pointer.
-
-1998-08-02  Ben Elliston  <bje at cygnus.com>
-
-	* windows.h: Remove duplicate TlsSetValue() prototype.  Add 
-	TlsGetValue() prototype.
-	(FALSE): Define.
-	(TRUE): Likewise.
-	Add forgotten errno values.  Guard against multiple #includes.
-
-	* windows.c: New file.  Implement stubs for Win32 functions.
-
-	* Makefile (SRCS): Remove.  Not explicitly needed.
-	(CFLAGS): Add -Wall for all warnings with GCC.
-
-Sun Aug  2 19:03:42 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* config.h: Create. This is a temporary stand-in for autoconf yet
-	to be done.
- 	(HAVE_SIGNAL_H): Add.
-
-	* pthread.h: Minor rearrangement for temporary config.h.
-
-Fri Jul 31 14:00:29 1998  Ross Johnson  <rpj at swan.canberra.edu.au>
-
-	* cleanup.c (ptw32_destructor_pop): Implement. Removes
-	destructors associated with a key without executing them.
-	(ptw32_destructor_pop_all): Add FIXME comment.
-
-	* tsd.c (pthread_key_delete): Add call to ptw32_destructor_pop().
-
-Fri Jul 31 00:05:45 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* tsd.c (pthread_key_create): Update to properly associate
-	the destructor routine with the key.
-	(pthread_key_delete): Add FIXME comment.
-
-	* exit.c (ptw32_vacuum): Add call to
-	ptw32_destructor_pop_all().
-
-	* implement.h (ptw32_handler_pop_all): Add prototype.
-	(ptw32_destructor_pop_all): Ditto.
-
-	* cleanup.c (ptw32_destructor_push): Implement. This is just a
-	call to ptw32_handler_push().
-	(ptw32_destructor_pop_all): Implement. This is significantly
-	different to ptw32_handler_pop_all().
-
-	* Makefile (SRCS): Create. Preliminary.
-
-	* windows.h: Create. Contains Win32 definitions for compile
-	testing. This is just a standin for the real one.
-
-	* pthread.h (SIG_UNBLOCK): Fix typo. Was SIG_BLOCK.
-	(windows.h): Add include. Required for CRITICAL_SECTION.
-	(pthread_cond_t): Move enum declaration outside of struct
-	definition.
-	(unistd.h): Add include - may be temporary.
-
-	* condvar.c (windows.h): Add include.
-
-	* implement.h (PTW32_THIS): Remove - no longer required.
-	(PTW32_STACK): Use pthread_self() instead of PTW32_THIS.
-
-Thu Jul 30 23:12:45 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* implement.h: Remove ptw32_find_entry() prototype.
-
-	* private.c: Extend comments.
-	Remove ptw32_find_entry() - no longer needed.
-
-	* create.c (ptw32_start_call): Add call to TlsSetValue() to
-	store the thread ID.
-
-	* dll.c (PthreadsEntryPoint): Implement. This is called
-	whenever a process loads the DLL. Used to initialise thread
-	local storage.
-
-	* implement.h: Add ptw32_threadID_TlsIndex.
-	Add ()s around PTW32_VALID expression.
-
-	* misc.c (pthread_self): Re-implement using Win32 TLS to store
-	the threads own ID.
-
-Wed Jul 29 11:39:03 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* private.c: Corrections in comments.
-	(ptw32_new_thread): Alter "if" flow to be more natural.
-
-	* cleanup.c (ptw32_handler_push): Same as below.
-
-	* create.c (pthread_create): Same as below.
-
-	* private.c (ptw32_new_thread): Rename "new" to "new_thread".
-	Since when has a C programmer been required to know C++?
-
-Tue Jul 28 14:04:29 1998  Ross Johnson  <rpj at swan.canberra.edu.au>
-
-	* implement.h: Add PTW32_VALID macro.
-
-	* sync.c (pthread_join): Modify to use the new thread
-	type and ptw32_delete_thread(). Rename "target" to "thread".
-	Remove extra local variable "target".
-	(pthread_detach): Ditto.
-
-	* signal.c (pthread_sigmask): Move init of "us" out of inner block.
-	Fix instance of "this" should have been "us". Rename "us" to "thread".
-
-	* sched.c (pthread_setschedparam): Modify to use the new thread
-	type.
-	(pthread_getschedparam): Ditto.
-
-	* private.c (ptw32_find_thread): Fix return type and arg.
-
-	* implement.h: Remove PTW32_YES and PTW32_NO.
-	(ptw32_new_thread): Add prototype.
-	(ptw32_find_thread): Ditto.
-	(ptw32_delete_thread): Ditto.
-	(ptw32_new_thread_entry): Remove prototype.
-	(ptw32_find_thread_entry): Ditto.
-	(ptw32_delete_thread_entry): Ditto.
-	(  PTW32_NEW, PTW32_INUSE, PTW32_EXITED, PTW32_REUSE):
-	Add.
-
-
-	* create.c (pthread_create): Minor rename "us" to "new" (I need
-	these cues but it doesn't stop me coming out with some major bugs
-	at times).
-	Load start_routine and arg into the thread so the wrapper can
-	call it.
-
-	* exit.c (pthread_exit): Fix pthread_this should be pthread_self.
-
-	* cancel.c (pthread_setcancelstate): Change
- 	ptw32_threads_thread_t * to pthread_t and init with
- 	pthread_this().
-	(pthread_setcanceltype): Ditto.
-
-	* exit.c (ptw32_exit): Add new pthread_t arg.
-	Rename ptw32_delete_thread_entry to ptw32_delete_thread.
-	Rename "us" to "thread".
-	(pthread_exit): Call ptw32_exit with added thread arg.
-
-	* create.c (ptw32_start_call): Insert missing ")".
-	Add "us" arg to ptw32_exit() call.
-	(pthread_create): Modify to use new thread allocation scheme.
-
-	* private.c: Added detailed explanation of the new thread
-	allocation scheme.
-	(ptw32_new_thread): Totally rewritten to use
-	new thread allocation scheme.
-	(ptw32_delete_thread): Ditto.
-	(ptw32_find_thread): Obsolete.
-
-Mon Jul 27 17:46:37 1998  Ross Johnson  <rpj at swan.canberra.edu.au>
-
-	* create.c (pthread_create): Start of rewrite. Not completed yet.
-
-	* private.c (ptw32_new_thread_entry): Start of rewrite. Not
-	complete.
-
-	* implement.h (ptw32_threads_thread): Rename, remove thread
-	member, add win32handle and ptstatus members.
-	(ptw32_t): Add.
-
-	* pthread.h: pthread_t is no longer mapped directly to a Win32
-	HANDLE type. This is so we can let the Win32 thread terminate and
-	reuse the HANDLE while pthreads holds it's own thread ID until
-	the last waiting join exits.
-
-Mon Jul 27 00:20:37 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* private.c (ptw32_delete_thread_entry): Destroy the thread
- 	entry attribute object before deleting the thread entry itself.
-
-	* attr.c (pthread_attr_init): Initialise cancel_pending = FALSE.
-	(pthread_attr_setdetachstate): Rename "detached" to "detachedstate".
-	(pthread_attr_getdetachstate): Ditto.
-
-	* exit.c (ptw32_exit): Fix incorrect check for detachedstate.
-
-	* implement.h (ptw32_call_t): Remove env member. 
-
-Sun Jul 26 13:06:12 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* implement.h (ptw32_new_thread_entry): Fix prototype.
-	(ptw32_find_thread_entry): Ditto.
-	(ptw32_delete_thread_entry): Ditto.
-	(ptw32_exit): Add prototype.
-
-	* exit.c (ptw32_exit): New function. Called from pthread_exit()
-	and ptw32_start_call() to exit the thread. It allows an extra
-	argument which is the return code passed to _endthreadex().
-	(ptw32_exit): Move thread entry delete call from ptw32_vacuum()
-	into here. Add more explanation of thread entry deletion.
-	(ptw32_exit): Clarify comment.
-
-	* create.c (ptw32_start_call): Change pthread_exit() call to
-	ptw32_exit() call.
-
-	* exit.c (ptw32_vacuum): Add thread entry deletion code
-	moved from ptw32_start_call(). See next item.
-	(pthread_exit): Remove longjmp(). Add mutex lock around thread table
-	manipulation code. This routine now calls _enthreadex().
-
-	* create.c (ptw32_start_call): Remove setjmp() call and move
-	cleanup code out. Call pthread_exit(NULL) to terminate the thread.
-
-1998-07-26  Ben Elliston  <bje at cygnus.com>
-
-	* tsd.c (pthread_getspecific): Update comments.
-
-	* mutex.c (pthread_mutexattr_setpshared): Not supported; remove.
-	(pthread_mutexattr_getpshared): Likewise.
-
-	* pthread.h (pthread_mutexattr_setpshared): Remove prototype.
-	(pthread_mutexattr_getpshared): Likewise.
-
-Sun Jul 26 00:09:59 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* sync.c: Rename all instances of ptw32_count_mutex to
-	ptw32_table_mutex.
-
-	* implement.h: Rename ptw32_count_mutex to
-	ptw32_table_mutex.
-
-	* global.c: Rename ptw32_count_mutex to
-	ptw32_table_mutex.
-
-	* create.c (pthread_create): Add critical sections.
-	(ptw32_start_call): Rename ptw32_count_mutex to
-	ptw32_table_mutex.
-
-	* cancel.c (pthread_setcancelstate): Fix indirection bug and rename
-	"this" to "us".
-
-	* signal.c (pthread_sigmask): Rename "this" to "us" and fix some
-	minor syntax errors. Declare "us" and initialise it.
-
-	* sync.c (pthread_detach): Rename "this" to "target".
-
-	* pthread.h: Converting PTHREAD_* defines to alias the (const int)
-	values in global.c.
-
-	* global.c: Started converting PTHREAD_* defines to (const int) as
- 	a part of making the eventual pthreads DLL binary compatible
- 	through version changes.
-
-	* condvar.c (cond_wait): Add cancelation point. This applies the
-	point to both pthread_cond_wait() and pthread_cond_timedwait().
-
-	* exit.c (pthread_exit): Rename "this" to "us".
-
-	* implement.h: Add comment.
-
-	* sync.c (pthread_join): I've satisfied myself that pthread_detach()
-	does set the detached attribute in the thread entry attributes
-	to PTHREAD_CREATE_DETACHED. "if" conditions were changed to test
-	that attribute instead of a separate flag.
-
-	* create.c (pthread_create): Rename "this" to "us".
-	(pthread_create): cancelstate and canceltype are not attributes
-	so the copy to thread entry attribute storage was removed.
-	Only the thread itself can change it's cancelstate or canceltype,
-	ie. the thread must exist already.
-
-	* private.c (ptw32_delete_thread_entry): Mutex locks removed.
-	Mutexes must be applied at the caller level.
-	(ptw32_new_thread_entry): Ditto.
-	(ptw32_new_thread_entry): Init cancelstate, canceltype, and
-	cancel_pending to default values.
-	(ptw32_new_thread_entry): Rename "this" to "new".
-	(ptw32_find_thread_entry): Rename "this" to "entry".
-	(ptw32_delete_thread_entry): Rename "thread_entry" to "entry".
-
-	* create.c (ptw32_start_call): Mutexes changed to
-	ptw32_count_mutex. All access to the threads table entries is
-	under the one mutex. Otherwise chaos reigns.
-
-Sat Jul 25 23:16:51 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* implement.h (ptw32_threads_thread): Move cancelstate and
- 	canceltype members out of pthread_attr_t into here.
-
-	* fork.c (fork): Add comment.
-
-1998-07-25  Ben Elliston  <bje at cygnus.com>
-
-	* fork.c (fork): Autoconfiscate.
-
-Sat Jul 25 00:00:13 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* create.c (ptw32_start_call): Set thread priority.  Ensure our
- 	thread entry is removed from the thread table but only if
- 	pthread_detach() was called and there are no waiting joins.
-	(pthread_create): Set detach flag in thread entry if the 
-	thread is created PTHREAD_CREATE_DETACHED.
-
-	* pthread.h (pthread_attr_t): Rename member "detachedstate".
-
-	* attr.c (pthread_attr_init): Rename attr members.
-
-	* exit.c (pthread_exit): Fix indirection mistake.
-
-	* implement.h (PTW32_THREADS_TABLE_INDEX): Add.
-
-	* exit.c (ptw32_vacuum): Fix incorrect args to
-	ptw32_handler_pop_all() calls.
-	Make thread entry removal conditional.
-
-	* sync.c (pthread_join): Add multiple join and async detach handling.
-
-	* implement.h (PTW32_THREADS_TABLE_INDEX): Add.
-
-	* global.c (ptw32_threads_mutex_table): Add.
-
-	* implement.h (ptw32_once_flag): Remove.
-	(ptw32_once_lock): Ditto.
-	(ptw32_threads_mutex_table): Add.
-
-	* global.c (ptw32_once_flag): Remove.
-	(ptw32_once_lock): Ditto.
-
-	* sync.c (pthread_join): Fix tests involving new return value
-	from ptw32_find_thread_entry().
-	(pthread_detach): Ditto.
-
-	* private.c (ptw32_find_thread_entry): Failure return code
-	changed from -1 to NULL.
-
-Fri Jul 24 23:09:33 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* create.c (pthread_create): Change . to -> in sigmask memcpy() args.
-
-	* pthread.h: (pthread_cancel): Add function prototype.
-	(pthread_testcancel): Ditto.
-
-1998-07-24  Ben Elliston  <bje at cygnus.com>
-
-	* pthread.h (pthread_condattr_t): Rename dummy structure member.
-	(pthread_mutexattr_t): Likewise.
-
-Fri Jul 24 21:13:55 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* cancel.c (pthread_cancel): Implement.
-	(pthread_testcancel): Implement.
-
-	* exit.c (pthread_exit): Add comment explaining the longjmp().
-
-	* implement.h (ptw32_threads_thread_t): New member cancelthread.
-	(PTW32_YES): Define.
-	(PTW32_NO): Define.
-	(RND_SIZEOF): Remove.
-
-	* create.c (pthread_create): Rename cancelability to cancelstate.
-
-	* pthread.h (pthread_attr_t): Rename cancelability to cancelstate.
-	(PTHREAD_CANCELED): Define.
-
-1998-07-24  Ben Elliston  <bje at cygnus.com>
-
-	* pthread.h (SIG_BLOCK): Define if not already defined.
-	(SIG_UNBLOCK): Likewise.
-	(SIG_SETMASK): Likewise.
-	(pthread_attr_t): Add signal mask member.
-	(pthread_sigmask): Add function prototype.
-
-	* signal.c (pthread_sigmask): Implement.
-
-	* create.c: #include <string.h> to get a prototype for memcpy().
-	(pthread_create): New threads inherit their creator's signal
-	mask.  Copy the signal mask to the new thread structure if we know
-	about signals.
-	
-Fri Jul 24 16:33:17 1998  Ross Johnson  <rpj at swan.canberra.edu.au>
-
-	* fork.c (pthread_atfork): Add all the necessary push calls.
-	Local implementation semantics:
-	If we get an ENOMEM at any time then ALL handlers
-	(including those from previous pthread_atfork() calls) will be
-	popped off each of the three atfork stacks before we return.
-	(fork): Add all the necessary pop calls. Add the thread cancellation
-	and join calls to the child fork.
-	Add #includes.
-
-	* implement.h: (ptw32_handler_push): Fix return type and stack arg
-	type in prototype.
-	(ptw32_handler_pop): Fix stack arg type in prototype.
-	(ptw32_handler_pop_all): Fix stack arg type in prototype.
-
-	* cleanup.c (ptw32_handler_push): Change return type to int and
-	return ENOMEM if malloc() fails.
-
-	* sync.c (pthread_detach): Use equality test, not assignment.
-
-	* create.c (ptw32_start_call): Add call to Win32 CloseHandle()
-	if thread is detached.
-
-1998-07-24  Ben Elliston  <bje at cygnus.com>
-
-	* sync.c (pthread_detach): Close the Win32 thread handle to
-	emulate detached (or daemon) threads.
-
-Fri Jul 24 03:00:25 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* sync.c (pthread_join): Save valueptr arg in joinvalueptr for
-	pthread_exit() to use.
-
-	* private.c (ptw32_new_thread_entry): Initialise joinvalueptr to
-	NULL.
-
-	* create.c (ptw32_start_call): Rewrite to facilitate joins.
-	pthread_exit() will do a longjmp() back to here. Does appropriate
-	cleanup and exit/return from the thread.
-	(pthread_create): _beginthreadex() now passes a pointer to our
-	thread table entry instead of just the call member of that entry.
-
-	* implement.h (ptw32_threads_thread): New member 
-	void ** joinvalueptr.
-	(ptw32_call_t): New member jmpbuf env.
-
-	* exit.c (pthread_exit): Major rewrite to handle joins and handing
-	value pointer to joining thread. Uses longjmp() back to 
-	ptw32_start_call().
-
-	* create.c (pthread_create): Ensure values of new attribute members
-	are copied to the thread attribute object.
-
-	* attr.c (pthread_attr_destroy):  Fix merge conflicts.
-	(pthread_attr_getdetachstate):  Fix merge conflicts.
-	(pthread_attr_setdetachstate):  Fix merge conflicts.
-
-	* pthread.h:  Fix merge conflicts.
-
-	* sync.c (pthread_join): Fix merge conflicts.
-
-Fri Jul 24 00:21:21 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* sync.c (pthread_join): Add check for valid and joinable
-	thread.
-	(pthread_detach): Implement. After checking for a valid and joinable
-	thread, it's still a no-op.
-
-	* private.c (ptw32_find_thread_entry): Bug prevented returning
-	an error value in some cases.
-
-	* attr.c (pthread_attr_setdetachedstate): Implement.
-	(pthread_attr_getdetachedstate): Implement.
-
-	* implement.h: Move more hidden definitions into here from
-	pthread.h.
-
-1998-07-24  Ben Elliston  <bje at cygnus.com>
-
-	* pthread.h (PTHREAD_CREATE_JOINABLE): Define.
-	(PTHREAD_CREATE_DETACHED): Likewise.
-	(pthread_attr_t): Add new structure member `detached'.
-	(pthread_attr_getdetachstate): Add function prototype.
-	(pthread_attr_setdetachstate): Likewise.
-
-	* sync.c (pthread_join): Return if the target thread is detached.
-
-	* attr.c (pthread_attr_init): Initialise cancelability and
-	canceltype structure members.
-	(pthread_attr_getdetachstate): Implement.
-	(pthread_attr_setdetachstate): Likewise.
-
-	* implement.h (PTW32_CANCEL_DEFAULTS): Remove.  Bit fields
-	proved to be too cumbersome.  Set the defaults in attr.c using the
-	public PTHREAD_CANCEL_* constants.
-
-	* cancel.c: New file.
-
-	* pthread.h (sched_param): Define this type.
-	(pthread_attr_getschedparam): Add function prototype.
-	(pthread_attr_setschedparam): Likewise.
-	(pthread_setcancelstate): Likewise.
-	(pthread_setcanceltype): Likewise.
-	(sched_get_priority_min): Likewise.
-	(sched_get_priority_max): Likewise.
-	(pthread_mutexattr_setprotocol): Remove; not supported.
-	(pthread_mutexattr_getprotocol): Likewise.
-	(pthread_mutexattr_setprioceiling): Likewise.
-	(pthread_mutexattr_getprioceiling): Likewise.
-	(pthread_attr_t): Add canceltype member.  Update comments.
-	(SCHED_OTHER): Define this scheduling policy constant.
-	(SCHED_FIFO): Likewise.
-	(SCHED_RR): Likewise.
-	(SCHED_MIN): Define the lowest possible value for this constant.
-	(SCHED_MAX): Likewise, the maximum possible value.
-	(PTHREAD_CANCEL_ASYNCHRONOUS): Redefine.
-	(PTHREAD_CANCEL_DEFERRED): Likewise.
-	
-	* sched.c: New file.
-	(pthread_setschedparam): Implement.
-	(pthread_getschedparam): Implement.
-	(sched_get_priority_max): Validate policy argument.
-	(sched_get_priority_min): Likewise.
-
-	* mutex.c (pthread_mutexattr_setprotocol): Remove; not supported.
-	(pthread_mutexattr_getprotocol): Likewise.
-	(pthread_mutexattr_setprioceiling): Likewise.
-	(pthread_mutexattr_getprioceiling): Likewise.
-
-Fri Jul 24 00:21:21 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* create.c (pthread_create): Arg to ptw32_new_thread_entry()
-	changed. See next entry. Move mutex locks out. Changes made yesterday
-	and today allow us to start the new thread running rather than
-	temporarily suspended.
-
-	* private.c (ptw32_new_thread_entry): ptw32_thread_table
-	was changed back to a table of thread structures rather than pointers.
-	As such we're trading storage for increaded speed. This routine
-	was modified to work with the new table. Mutex lock put in around
-	global data accesses.
-	(ptw32_find_thread_entry): Ditto
-	(ptw32_delete_thread_entry): Ditto
-
-Thu Jul 23 23:25:30 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* global.c: New. Global data objects declared here. These moved from
-	pthread.h.
-
-	* pthread.h: Move implementation hidden definitions into
-	implement.h.
-
-	* implement.h: Move implementation hidden definitions from
-	pthread.h. Add constants to index into the different handler stacks.
-
-	* cleanup.c (ptw32_handler_push): Simplify args. Restructure.
-	(ptw32_handler_pop): Simplify args. Restructure.
-	(ptw32_handler_pop_all): Simplify args. Restructure.
-
-Wed Jul 22 00:16:22 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* attr.c, implement.h, pthread.h, ChangeLog: Resolve CVS merge
-	conflicts.
-
-	* private.c (ptw32_find_thread_entry): Changes to return type
-	to support leaner ptw32_threads_table[] which now only stores
-	ptw32_thread_thread_t *.
-	(ptw32_new_thread_entry): Internal changes.
-	(ptw32_delete_thread_entry): Internal changes to avoid contention.
- 	Calling routines changed accordingly.
-
-	* pthread.h: Modified cleanup macros to use new generic push and pop.
-	Added destructor and atfork stacks to ptw32_threads_thread_t.
-
-	* cleanup.c (ptw32_handler_push, ptw32_handler_pop,
-	ptw32_handler_pop_all): Renamed cleanup push and pop routines
-	and made generic to handle destructors and atfork handlers as
-	well.
-
-	* create.c (ptw32_start_call): New function is a wrapper for
-	all new threads. It allows us to do some cleanup when the thread
-	returns, ie. that is otherwise only done if the thread is cancelled.
-
-	* exit.c (ptw32_vacuum): New function contains code from 
-	pthread_exit() that we need in the new ptw32_start_call()
-	as well.
-
-	* implement.h: Various additions and minor changes.
-
-	* pthread.h: Various additions and minor changes.
-	Change cleanup handler macros to use generic handler push and pop
-	functions.
-
-	* attr.c: Minor mods to all functions.
-	(is_attr): Implemented missing function.
-
-	* create.c (pthread_create): More clean up.
-
-	* private.c (ptw32_find_thread_entry): Implement.
-	(ptw32_delete_thread_entry): Implement.
-	(ptw32_new_thread_entry): Implement.
-	These functions manipulate the implementations internal thread
-	table and are part of general code cleanup and modularisation.
-	They replace ptw32_getthreadindex() which was removed.
-
-	* exit.c (pthread_exit): Changed to use the new code above.
-
-	* pthread.h: Add cancelability constants. Update comments.
-
-1998-07-22  Ben Elliston  <bje at cygnus.com>
-
-	* attr.c (pthread_setstacksize): Update test of attr argument.
-	(pthread_getstacksize): Likewise.
-	(pthread_setstackaddr): Likewise.
-	(pthread_getstackaddr): Likewise.
-	(pthread_attr_init): No need to allocate any storage.
-	(pthread_attr_destroy): No need to free any storage.
-
-	* mutex.c (is_attr): Not likely to be needed; remove.
-	(remove_attr): Likewise.
-	(insert_attr): Likewise.
-
-	* implement.h (ptw32_mutexattr_t): Moved to a public definition
-	in pthread.h.  There was little gain in hiding these details.
-	(ptw32_condattr_t): Likewise.
-	(ptw32_attr_t): Likewise.
-
-	* pthread.h (pthread_atfork): Add function prototype.
-	(pthread_attr_t): Moved here from implement.h.
-
-	* fork.c (pthread_atfork): Preliminary implementation.
-	(ptw32_fork): Likewise.
-
-Wed Jul 22 00:16:22 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* cleanup.c (ptw32_cleanup_push): Implement.
-	(ptw32_cleanup_pop): Implement.
-	(ptw32_do_cancellation): Implement.
-	These are private to the implementation. The real cleanup functions
-	are macros. See below.
-
-	* pthread.h (pthread_cleanup_push): Implement as a macro.
-	(pthread_cleanup_pop): Implement as a macro.
-	Because these are macros which start and end a block, the POSIX scoping
-	requirement is observed. See the comment in the file.
-
-	* exit.c (pthread_exit): Refine the code.
-
-	* create.c (pthread_create): Code cleanup.
-
-	* implement.h (RND_SIZEOF): Add RND_SIZEOF(T) to round sizeof(T)
-	up to multiple of DWORD.
-	Add function prototypes.
-
-	* private.c (ptw32_getthreadindex): "*thread" should have been 
-	"thread". Detect empty slot fail condition.
-
-1998-07-20  Ben Elliston  <bje at cygnus.com>
-
-	* misc.c (pthread_once): Implement.  Don't use a per-application
-	flag and mutex--make `pthread_once_t' contain these elements in
-	their structure.  The earlier version had incorrect semantics.
-	
-	* pthread.h (ptw32_once_flag): Add new variable.  Remove.
-	(ptw32_once_lock): Add new mutex lock to ensure integrity of
-	access to ptw32_once_flag.  Remove.
-	(pthread_once): Add function prototype.
-	(pthread_once_t): Define this type.
-	
-Mon Jul 20 02:31:05 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* private.c (ptw32_getthreadindex): Implement.
-
-	* pthread.h: Add application static data dependent on
-	_PTHREADS_BUILD_DLL define. This is needed to avoid allocating
-	non-sharable static data within the pthread DLL.
-
-	* implement.h: Add ptw32_cleanup_stack_t, ptw32_cleanup_node_t
-	and PTW32_HASH_INDEX.
-
-	* exit.c (pthread_exit): Begin work on cleanup and de-allocate
-	thread-private storage.
-
-	* create.c (pthread_create): Add thread to thread table.
-	Keep a thread-private copy of the attributes with default values
-	filled in when necessary. Same for the cleanup stack. Make 
-	pthread_create C run-time library friendly by using _beginthreadex()
-	instead of CreateThread(). Fix error returns.
-
-Sun Jul 19 16:26:23 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* implement.h: Rename pthreads_thread_count to ptw32_threads_count.
-	Create ptw32_threads_thread_t struct to keep thread specific data.
-
-	* create.c: Rename pthreads_thread_count to ptw32_threads_count.
-	(pthread_create): Handle errors from CreateThread().
-
-1998-07-19  Ben Elliston  <bje at cygnus.com>
-
-	* condvar.c (pthread_cond_wait): Generalise.  Moved from here ..
-	(cond_wait): To here.
-	(pthread_cond_timedwait): Implement; use generalised cond_wait().
-
-	* pthread.h (pthread_key_t): Define this type.
-	(pthread_key_create): Add function prototype.
-	(pthread_setspecific): Likewise.
-	(pthread_getspecific): Likwise.
-	(pthread_key_delete): Likewise.
-
-	* tsd.c (pthread_key_create): Implement.
-	(pthread_setspecific): Likewise.
-	(pthread_getspecific): Likewise.
-	(pthread_key_delete): Likewise.
-
-	* mutex.c (pthread_mutex_trylock): Return ENOSYS if this function
-	is called on a Win32 platform which is not Windows NT.
-
-1998-07-18  Ben Elliston  <bje at cygnus.com>
-
-	* condvar.c (pthread_condattr_init): Do not attempt to malloc any
-	storage; none is needed now that condattr_t is an empty struct.
-	(pthread_condattr_destory): Likewise; do not free storage.
-	(pthread_condattr_setpshared): No longer supported; return ENOSYS.
-	(pthread_condattr_getpshared): Likewise.
-	(pthread_cond_init): Implement with help from Douglas Schmidt.
-	Remember to initialise the cv's internal mutex.
-	(pthread_cond_wait): Likewise.
-	(pthread_cond_signal): Likewise.
-	(pthread_cond_broadcast): Likewise.
-	(pthread_cond_timedwait): Preliminary implementation, but I need
-	to see some API documentation for `WaitForMultipleObject'.
-	(pthread_destory): Implement.
-
-	* pthread.h (pthread_cond_init): Add function protoype.
-	(pthread_cond_broadcast): Likewise.
-	(pthread_cond_signal): Likewise.
-	(pthread_cond_timedwait): Likewise.
-	(pthread_cond_wait): Likewise.
-	(pthread_cond_destroy): Likewise.
-	(pthread_cond_t): Define this type.  Fix for u_int.  Do not assume
-	that the mutex contained withing the pthread_cond_t structure will
-	be a critical section.  Use our new POSIX type!
-
-	* implement.h (ptw32_condattr_t): Remove shared attribute.
-
-1998-07-17  Ben Elliston  <bje at cygnus.com>
-
-	* pthread.h (PTHREADS_PROCESS_PRIVATE): Remove.
-	(PTHREAD_PROCESS_SHARED): Likewise.  No support for mutexes shared
-	across processes for now.
-	(pthread_mutex_t): Use a Win32 CRITICAL_SECTION type for better
-	performance.
-	
-	* implement.h (ptw32_mutexattr_t): Remove shared attribute.
-	
-	* mutex.c (pthread_mutexattr_setpshared): This optional function
-	is no longer supported, since we want to implement POSIX mutex
-	variables using the much more efficient Win32 critical section
-	primitives.  Critical section objects in Win32 cannot be shared
-	between processes.
-	(pthread_mutexattr_getpshared): Likewise.
-	(pthread_mutexattr_init): No need to malloc any storage; the
-	attributes structure is now empty.
-	(pthread_mutexattr_destroy): This is now a nop.
-	(pthread_mutex_init): Use InitializeCriticalSection().
-	(pthread_mutex_destroy): Use DeleteCriticalSection().
-	(pthread_mutex_lock): Use EnterCriticalSection().
-	(pthread_mutex_trylock): Use TryEnterCriticalSection().  This is
-	not supported by Windows 9x, but trylock is a hack anyway, IMHO.
-	(pthread_mutex_unlock): Use LeaveCriticalSection().
-
-1998-07-14  Ben Elliston  <bje at cygnus.com>
-
-	* attr.c (pthread_attr_setstacksize): Implement.
-	(pthread_attr_getstacksize): Likewise.
-	(pthread_attr_setstackaddr): Likewise.
-	(pthread_attr_getstackaddr): Likewise.
-	(pthread_attr_init): Likewise.
-	(pthread_attr_destroy): Likewise.
-	
-	* condvar.c (pthread_condattr_init): Add `_cond' to function name.
-
-	* mutex.c (pthread_mutex_lock): Add `_mutex' to function name.
-	(pthread_mutex_trylock): Likewise.
-	(pthread_mutex_unlock): Likewise.
-
-	* pthread.h (pthread_condattr_setpshared): Fix typo.
-	(pthread_attr_init): Add function prototype.
-	(pthread_attr_destroy): Likewise.
-	(pthread_attr_setstacksize): Likewise.
-	(pthread_attr_getstacksize): Likewise.
-	(pthread_attr_setstackaddr): Likewise.
-	(pthread_attr_getstackaddr): Likewise.
-	
-Mon Jul 13 01:09:55 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* implement.h: Wrap in #ifndef _IMPLEMENT_H
-
-	* create.c (pthread_create): Map stacksize attr to Win32.
-
-	* mutex.c: Include implement.h
-
-1998-07-13  Ben Elliston  <bje at cygnus.com>
-
-	* condvar.c (pthread_condattr_init): Implement.
-	(pthread_condattr_destroy): Likewise.
-	(pthread_condattr_setpshared): Likewise.
-	(pthread_condattr_getpshared): Likewise.
-	
-	* implement.h (PTHREAD_THREADS_MAX): Remove trailing semicolon.
-	(PTHREAD_STACK_MIN): Specify; needs confirming.
-	(ptw32_attr_t): Define this type.
-	(ptw32_condattr_t): Likewise.
-
-	* pthread.h (pthread_mutex_t): Define this type.
-	(pthread_condattr_t): Likewise.
-	(pthread_mutex_destroy): Add function prototype.
-	(pthread_lock): Likewise.
-	(pthread_trylock): Likewise.
-	(pthread_unlock): Likewise.
-	(pthread_condattr_init): Likewise.
-	(pthread_condattr_destroy): Likewise.
-	(pthread_condattr_setpshared): Likewise.
-	(pthread_condattr_getpshared): Likewise.
-
-	* mutex.c (pthread_mutex_init): Implement.
-	(pthread_mutex_destroy): Likewise.
-	(pthread_lock): Likewise.
-	(pthread_trylock): Likewise.
-	(pthread_unlock): Likewise.
-
-1998-07-12  Ben Elliston  <bje at cygnus.com>
-
-	* implement.h (ptw32_mutexattr_t): Define this implementation
-	internal type.  Application programmers only see a mutex attribute
-	object as a void pointer.
-
-	* pthread.h (pthread_mutexattr_t): Define this type.
-	(pthread_mutexattr_init): Add function prototype.
-	(pthread_mutexattr_destroy): Likewise.
-	(pthread_mutexattr_setpshared): Likewise.
-	(pthread_mutexattr_getpshared): Likewise.
-	(pthread_mutexattr_setprotocol): Likewise.
-	(pthread_mutexattr_getprotocol): Likewise.
-	(pthread_mutexattr_setprioceiling): Likewise.
-	(pthread_mutexattr_getprioceiling): Likewise.
-	(PTHREAD_PROCESS_PRIVATE): Define.
-	(PTHREAD_PROCESS_SHARED): Define.
-
-	* mutex.c (pthread_mutexattr_init): Implement.
-	(pthread_mutexattr_destroy): Implement.
-	(pthread_mutexattr_setprotocol): Implement.
-	(pthread_mutexattr_getprotocol): Likewise.
-	(pthread_mutexattr_setprioceiling): Likewise.
-	(pthread_mutexattr_getprioceiling): Likewise.
-	(pthread_mutexattr_setpshared): Likewise.
-	(pthread_mutexattr_getpshared): Likewise.
-	(insert_attr): New function; very preliminary implementation!
-	(is_attr): Likewise.
-	(remove_attr): Likewise.
-	
-Sat Jul 11 14:48:54 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>
-
-	* implement.h: Preliminary implementation specific defines.
-
-	* create.c (pthread_create): Preliminary implementation.
-
-1998-07-11  Ben Elliston  <bje at cygnus.com>
-
-	* sync.c (pthread_join): Implement.
-
-	* misc.c (pthread_equal): Likewise.
-	
-	* pthread.h (pthread_join): Add function prototype.
-	(pthread_equal): Likewise.
-	
-1998-07-10  Ben Elliston  <bje at cygnus.com>
-
-	* misc.c (pthread_self): Implement.
-
-	* exit.c (pthread_exit): Implement.
-
-	* pthread.h (pthread_exit): Add function prototype.
-	(pthread_self): Likewise.
-	(pthread_t): Define this type.
-
-1998-07-09  Ben Elliston  <bje at cygnus.com>
-
-	* create.c (pthread_create): A dummy stub right now.
-
-	* pthread.h (pthread_create): Add function prototype.
+2010-11-16  Ross Johnson <ross.johnson at homemail.com.au>


+


+	* ChangeLog: Add this entry ;-)


+	Restore entries from 2007 through 2009 that went missing


+	at the last update.


+


+2010-06-19  Ross Johnson <ross.johnson at homemail.com.au>


+


+	* ptw32_MCS_lock.c (ptw32_mcs_node_substitute): Fix variable


+	names to avoid using C++ keyword ("new").


+	* implement.h (ptw32_mcs_node_substitute): Likewise.


+	* pthread_barrier_wait.c: Fix signed/unsigned comparison warning.


+


+2010-06-18  Ramiro Polla  <ramiro.polla at gmail.com >


+


+	* autostatic.c: New file; call pthread_win32_process_*()


+	libary init/cleanup routines automatically on application start


+	when statically linked.


+	* pthread.c (autostatic.c): Included.


+	* pthread.h (declspec): Remove import/export defines if compiler


+	is MINGW.


+	* sched.h (declspec): Likewise.


+	* semaphore.h (declspec): Likewise.


+	* need_errno.h (declspec): Likewise.


+	* Makefile (autostatic.obj): Add for small static builds.


+	* GNUmakefile (autostatic.o): Likewise.


+	* NEWS (Version 2.9.0): Add changes.


+	* README.NONPORTABLE (pthread_win32_process_*): Update


+	description.


+


+2010-06-15  Ramiro Polla  <ramiro.polla at gmail.com >


+


+	* Makefile: Remove linkage with the winsock library by default.


+	* GNUmakefile: Likewise.


+	* pthread_getspecific.c: Likewise by removing calls to WSA


+	functions.


+	* config.h (RETAIN_WSALASTERROR): Can be defined if necessary.


+


+2010-01-26  Ross Johnson <ross.johnson at homemail.com.au>


+


+	* ptw32_MCS_lock.c (ptw32_mcs_node_substitute): New routine


+	to allow relocating the lock owners thread-local node to somewhere


+	else, e.g. to global space so that another thread can release the


+	lock. Used in pthread_barrier_wait.


+	(ptw32_mcs_lock_try_acquire): New routine.


+	* pthread_barrier_init: Only one semaphore is used now.


+	* pthread_barrier_wait: Added an MCS guard lock with the last thread


+	to leave the barrier releasing the lock. This removes a deadlock bug


+	observed when there are greater than barrier-count threads


+	attempting to cross.


+	* pthread_barrier_destroy: Added an MCS guard lock.


+        


+2009-03-03  Stephan O'Farrill <stephan dot ofarrill at gmail dot com>


+


+	* pthread_attr_getschedpolicy.c: Add "const" to function parameter


+	in accordance with SUSv3 (POSIX).


+	* pthread_attr_getinheritsched.c: Likewise.


+	* pthread_mutexattr_gettype.c: Likewise.


+


+2008-06-06  Robert Kindred  <RKindred at SwRI dot edu>


+


+	* ptw32_throw.c (ptw32_throw): Remove possible reference to NULL


+	pointer. (At the same time made the switch block conditionally


+	included only if exitCode is needed - RPJ.)


+	* pthread_testcancel.c (pthread_testcancel): Remove duplicate and


+	misplaced pthread_mutex_unlock().


+


+2008-02-21  Sebastian Gottschalk  <seppig_relay at gmx dot de>


+


+	* pthread_attr_getdetachstate.c (pthread_attr_getdetachstate):


+	Remove potential and superfluous null pointer assignment.


+


+2007-11-22  Ivan Pizhenko  <ivanp4 at ua dot fm>


+


+	* pthread.h (gmtime_r): gmtime returns 0 if tm represents a time


+	prior to 1/1/1970. Notice this to prevent raising an exception.


+	* pthread.h (localtime_r): Likewise for localtime.


+


+2007-07-14  Marcel Ruff  <mr at marcelruff dot info>


+


+	* errno.c (_errno): Fix test for pthread_self() success.


+	* need_errno.h: Remove unintentional line wrap from #if line.


+


+2007-07-14  Mike Romanchuk  <mromanchuk at empirix dot com>


+


+	* pthread.h (timespec): Fix tv_sec type.


+


+2007-01-07  Sinan Kaya <sinan.kaya at siemens dot com>


+


+	* need_errno.h: Fix declaration of _errno - the local version of


+	_errno() is used, e.g. by WinCE.


+


+2007-01-06  Ross Johnson <ross.johnson at homemail dot com dot au>


+


+	* ptw32_semwait.c: Add check for invalid sem_t after acquiring the


+	sem_t state guard mutex and before affecting changes to sema state.


+                


+2007-01-06  Marcel Ruff <mr at marcelruff dot info>


+


+	* error.c: Fix reference to pthread handle exitStatus member for


+	builds that use NEED_ERRNO (i.e. WINCE).


+	* context.h: Add support for ARM processor (WinCE).


+	* mutex.c (process.h): Exclude for WINCE.


+	* create.c: Likewise.


+	* exit.c: Likewise.


+	* implement.h: Likewise.


+	* pthread_detach.c (signal.h): Exclude for WINCE.


+	* pthread_join.c: Likewise.


+	* pthread_kill.c: Likewise.


+	* pthread_rwlock_init.c (errno.h): Remove - included by pthread.h.


+	* pthread_rwlock_destroy.c: Likewise.


+	* pthread_rwlock_rdlock.c: Likewise.


+	* pthread_rwlock_timedrdlock.c: Likewise.


+	* pthread_rwlock_timedwrlock.c: Likewise.


+	* pthread_rwlock_tryrdlock.c: Likewise.


+	* pthread_rwlock_trywrlock.c: likewise.


+	* pthread_rwlock_unlock.c: Likewise.


+	* pthread_rwlock_wrlock.c: Likewise.


+	* pthread_rwlockattr_destroy.c: Likewise.


+	* pthread_rwlockattr_getpshared.c: Likewise.


+	* pthread_rwlockattr_init.c: Likewise.


+	* pthread_rwlockattr_setpshared.c: Likewise.


+


+2007-01-06  Romano Paolo Tenca <rotenca at telvia dot it>


+


+	* pthread_cond_destroy.c: Replace sem_wait() with non-cancelable


+	ptw32_semwait() since pthread_cond_destroy() is not a cancelation


+	point.


+	* implement.h (ptw32_spinlock_check_need_init): Add prototype.


+	* ptw32_MCS_lock.c: Reverse order of includes.


+


+2007-01-06  Eric Berge <eric dot berge at quantum dot com>


+


+	* pthread_cond_destroy.c: Add LeaveCriticalSection before returning


+	after errors.


+


+2007-01-04  Ross Johnson <ross.johnson at homemail dot com dot au>


+


+	* ptw32_InterlockedCompareExchange.c: Conditionally skip for


+	Win64 as not required.


+	* pthread_win32_attach_detach_np.c (pthread_win32_process_attach_np):


+	Test for InterlockedCompareExchange is not required for Win64.


+	* context.h: New file. Included by pthread_cancel.h and any tests


+	that need it (e.g. context1.c).


+	* pthread_cancel.c: Architecture-dependent context macros moved


+	to context.h.


+


+2007-01-04  Kip Streithorst <KSTREITH at ball dot com>


+


+	* implement.h (PTW32_INTERLOCKED_COMPARE_EXCHANGE): Add Win64


+	support.


+


+2006-12-20  Ross Johnson <ross.johnson at homemail.com.au>


+


+	* sem_destroy.c: Fix the race involving invalidation of the sema;


+	fix incorrect return of EBUSY resulting from the mutex trylock


+	on the private mutex guard.


+	* sem_wait.c: Add check for invalid sem_t after acquiring the


+	sem_t state guard mutex and before affecting changes to sema state.


+	* sem_trywait.c: Likewise.


+	* sem_timedwait.c: Likewise.


+	* sem_getvalue.c: Likewise.


+	* sem_post.c: Similar.


+	* sem_post_multiple.c: Likewise.


+	* sem_init.c: Set max Win32 semaphore count to SEM_VALUE_MAX (was


+	_POSIX_SEM_VALUE_MAX, which is a lower value - the minimum).


+


+	* pthread_win32_attach_detach_np.c (pthread_win32_process_attach_np):


+	Load COREDLL.DLL under WINCE to check existence of


+	InterlockedCompareExchange() routine. This used to be done to test


+	for TryEnterCriticalSection() but was removed when this was no


+	longer needed.


+


+2006-01-25  Prashant Thakre <prashant.thakre at gmail.com>


+


+	* pthread_cancel.c: Added _M_IA64 register context support.


+


+2005-05-13  Ross Johnson  <ross at callisto.canberra.edu.au>


+


+	* pthread_kill.c (pthread_kill): Remove check for Win32 thread


+	priority (to confirm HANDLE validity). Useless since thread HANDLEs


+	a not recycle-unique.


+


+2005-05-30  Vladimir Kliatchko  <vladimir at kliatchko.com>


+


+	* pthread_once.c: Re-implement using an MCS queue-based lock. The form


+	of pthread_once is as proposed by Alexander Terekhov (see entry of


+	2005-03-13). The MCS lock implementation does not require a unique


+	'name' to identify the lock between threads. Attempts to get the Event


+	or Semaphore based versions of pthread_once to a satisfactory level


+	of robustness have thus far failed. The last problem (avoiding races


+	involving non recycle-unique Win32 HANDLEs) was giving everyone


+	grey hair trying to solve it.


+


+	* ptw32_MCS_lock.c: New MCS queue-based lock implementation. These


+	locks are efficient: they have very low overhead in the uncontended case;


+	are efficient in contention and minimise cache-coherence updates in


+	managing the user level FIFO queue; do not require an ABI change in the


+	library.


+


+2005-05-27  Alexander Gottwald <alexander.gottwald at s1999.tu-chemnitz.de>


+


+	* pthread.h: Some things, like HANDLE, were only defined if


+	PTW32_LEVEL was >= 3. They should always be defined.


+


+2005-05-25  Vladimir Kliatchko  <vladimir at kliatchko.com>


+


+	* pthread_once.c: Eliminate all priority operations and other


+	complexity by replacing the event with a semaphore. The advantage


+	of the change is the ability to release just one waiter if the


+	init_routine thread is cancelled yet still release all waiters when


+	done. Simplify once_control state checks to improve efficiency


+	further.


+


+2005-05-24  Mikael Magnusson  <mikaelmagnusson at glocalnet.net>


+


+	* GNUmakefile: Patched to allow cross-compile with mingw32 on Linux.


+	It uses macros instead of referencing dlltool, gcc and g++ directly;


+	added a call to ranlib. For example the GC static library can be


+	built with:


+	make CC=i586-mingw32msvc-gcc RC=i586-mingw32msvc-windres \


+	RANLIB=i586-mingw32msvc-ranlib clean GC-static


+


+2005-05-13  Ross Johnson  <ross at callisto.canberra.edu.au>


+


+	* pthread_win32_attach_detach_np.c (pthread_win32_thread_detach_np):


+	Move on-exit-only stuff from ptw32_threadDestroy() to here.


+	* ptw32_threadDestroy.c: It's purpose is now only to reclaim thread


+	resources for detached threads, or via pthread_join() or


+	pthread_detach() on joinable threads.


+	* ptw32_threadStart.c: Calling user destruct routines has moved to


+	pthread_win32_thread_detach_np(); call pthread_win32_thread_detach_np()


+	directly if statically linking, otherwise do so via dllMain; store


+	thread return value in thread struct for all cases, including


+	cancellation and exception exits; thread abnormal exits	go via


+	pthread_win32_thread_detach_np.


+	* pthread_join.c (pthread_join): Don't try to get return code from


+	Win32 thread - always get it from he thread struct.


+	* pthread_detach.c (pthread_detach): reduce extent of the thread


+	existence check since we now don't care if the Win32 thread HANDLE has


+	been closed; reclaim thread resources if the thread has exited already.


+	* ptw32_throw.c (ptw32_throw): For Win32 threads that are not implicit,


+	only Call thread cleanup if statically linking, otherwise leave it to


+	dllMain.


+	* sem_post.c (_POSIX_SEM_VALUE_MAX): Change to SEM_VALUE_MAX.


+	* sem_post_multiple.c: Likewise.


+	* sem_init.c: Likewise.


+


+2005-05-10  Ross Johnson  <ross at callisto.canberra.edu.au>


+


+	* pthread_join.c (pthread_join): Add missing check for thread ID


+	reference count in thread existence test; reduce extent of the


+	existence test since we don't care if the Win32 thread HANDLE has


+	been closed.


+


+2005-05-09  Ross Johnson  <ross at callisto.canberra.edu.au>


+


+	* ptw32_callUserDestroyRoutines.c: Run destructor process (i.e.


+	loop over all keys calling destructors) up to


+	PTHREAD_DESTRUCTOR_ITERATIONS times if TSD value isn't NULL yet;


+	modify assoc management.


+	* pthread_key_delete.c: Modify assoc management.


+	* ptw32_tkAssocDestroy.c: Fix error in assoc removal from chains.


+	* pthread.h


+	(_POSIX_THREAD_DESTRUCTOR_ITERATIONS): Define to value specified by


+	POSIX.


+	(_POSIX_THREAD_KEYS_MAX): Define to value specified by POSIX.


+	(PTHREAD_KEYS_MAX): Redefine [upward] to minimum required by POSIX.


+	(SEM_NSEMS_MAX): Define to implementation value.


+	(SEM_VALUE_MAX): Define to implementation value.


+	(_POSIX_SEM_NSEMS_MAX): Redefine to value specified by POSIX.


+	(_POSIX_SEM_VALUE_MAX): Redefine to value specified by POSIX.


+


+2005-05-06  Ross Johnson  <ross at callisto.canberra.edu.au>


+


+	* signal.c (sigwait): Add a cancellation point to this otherwise


+	no-op.


+	* sem_init.c (sem_init): Check for and return ERANGE error.


+	* sem_post.c (sem_post): Likewise.


+	* sem_post_multiple.c (sem_post_multiple): Likewise.


+	* manual (directory): Added; see ChangeLog inside.


+


+2005-05-02  Ross Johnson  <ross at callisto.canberra.edu.au>


+


+	* implement.h (struct pthread_key_t_): Change threadsLock to keyLock


+	so as not to be confused with the per thread lock 'threadlock';


+	change all references to it.


+	* implement.h (struct ThreadKeyAssoc): Remove lock; add prevKey


+	and prevThread pointers; re-implemented all routines that use this


+	struct. The effect of this is to save one handle per association,


+	which could potentially equal the number of keys multiplied by the


+	number of threads, accumulating over time - and to free the


+	association memory as soon as it is no longer referenced by either


+	the key or the thread. Previously, the handle and memory were


+	released only after BOTH key and thread no longer referenced the


+	association. That is, often no association resources were released


+	until the process itself exited. In addition, at least one race


+	condition has been removed - where two threads could attempt to


+	release the association resources simultaneously - one via


+	ptw32_callUserDestroyRoutines and the other via


+	pthread_key_delete.


+	- thanks to Richard Hughes at Aculab for discovering the problem.


+	* pthread_key_create.c: See above.


+	* pthread_key_delete.c: See above.


+	* pthread_setspecific.c: See above.


+	* ptw32_callUserDestroyRoutines.c: See above.


+	* ptw32_tkAssocCreate.c: See above.


+	* ptw32_tkAssocDestroy.c: See above.


+


+2005-04-27  Ross Johnson  <ross at callisto.canberra.edu.au>


+


+	* sem_wait.c (ptw32_sem_wait_cleanup): after cancellation re-attempt


+	to acquire the semaphore to avoid a race with a late sem_post.


+	* sem_timedwait.c: Modify comments.


+


+2005-04-25  Ross Johnson  <ross at callisto.canberra.edu.au>


+


+	* ptw32_relmillisecs.c: New module; converts future abstime to 


+	milliseconds relative to 'now'.


+	* pthread_mutex_timedlock.c: Use new ptw32_relmillisecs routine in


+	place of internal code; remove the NEED_SEM code - this routine is now


+	implemented for builds that define NEED_SEM (WinCE etc)


+	* sem_timedwait.c: Likewise; after timeout or cancellation,


+	re-attempt to acquire the semaphore in case one has been posted since


+	the timeout/cancel occurred. Thanks to Stefan Mueller.


+	* Makefile: Add ptw32_relmillisecs.c module; remove


+	ptw32_{in,de}crease_semaphore.c modules.


+	* GNUmakefile: Likewise.


+	* Bmakefile: Likewise.


+


+	* sem_init.c: Re-write the NEED_SEM code to be consistent with the


+	non-NEED_SEM code, but retaining use of an event in place of the w32 sema


+	for w32 systems that don't include semaphores (WinCE);


+	the NEED_SEM versions of semaphores has been broken for a long time but is


+	now fixed and supports all of the same routines as the non-NEED_SEM case.


+	* sem_destroy.c: Likewise.


+	* sem_wait.c: Likewise.


+	* sem_post.c: Likewise.


+	* sem_post_multple.c: Likewise.


+	* implement.h: Likewise.


+	* sem_timedwait.c: Likewise; this routine is now


+	implemented for builds that define NEED_SEM (WinCE etc).


+	* sem_trywait.c: Likewise.


+	* sem_getvalue.c: Likewise.


+


+	* pthread_once.c: Yet more changes, reverting closer to Gottlob Frege's


+	first design, but retaining cancellation, priority boosting, and adding


+	preservation of W32 error codes to make pthread_once transparent to


+	GetLastError.


+


+2005-04-11  Ross Johnson  <ross at callisto.canberra.edu.au>


+


+	* pthread_once.c (pthread_once): Added priority boosting to


+	solve starvation problem after once_routine cancellation.


+	See notes in file.


+


+2005-04-06  Kevin Lussier <Kevin at codegreennetworks.com>


+


+	* Makefile: Added debug targets for all versions of the library.


+


+2005-04-01  Ross Johnson  <ross at callisto.canberra.edu.au>


+


+	* GNUmakefile: Add target to build libpthreadGC1.a as a static link


+	library.


+	* Makefile: Likewise for pthreadGC1.lib.


+


+2005-04-01  Kevin Lussier <Kevin at codegreennetworks.com>


+


+	* sem_timedwait.c (sem_timedwait): Increase size of temp variables to


+	avoid int overflows for large timeout values.


+	* implement.h (int64_t): Include or define.


+


+2005-03-31   Dimitar Panayotov <develop at mail.bg>^M


+


+	* pthread.h: Fix conditional defines for static linking.


+	* sched.h: Liekwise.


+	* semaphore.h: Likewise.


+	* dll.c (PTW32_STATIC_LIB): Module is conditionally included


+	in the build.


+


+2005-03-16  Ross Johnson  <ross at callisto.canberra.edu.au>^M


+


+	* pthread_setcancelstate.c: Undo the last change.


+


+2005-03-16  Ross Johnson  <ross at callisto.canberra.edu.au>^M


+


+	* pthread_setcancelstate.c: Don't check for an async cancel event


+	if the library is using alertable async cancel..


+


+2005-03-14  Ross Johnson  <ross at callisto.canberra.edu.au>


+


+	* pthread_once.c (pthread_once): Downgrade interlocked operations to simple


+	memory operations where these are protected by the critical section; edit


+	comments.


+


+2005-03-13  Ross Johnson  <rpj at callisto.canberra.edu.au>


+


+	* pthread_once.c (pthread_once): Completely redesigned; a change was


+	required to the ABI (pthread_once_t_), and resulting in a version


+	compatibility index increment.


+


+	NOTES:


+	The design (based on pseudo code contributed by Gottlob Frege) avoids


+	creating a kernel object if there is no contention. See URL for details:-


+	http://sources.redhat.com/ml/pthreads-win32/2005/msg00029.html


+	This uses late initialisation similar to the technique already used for


+	pthreads-win32 mutexes and semaphores (from Alexander Terekhov).


+


+	The subsequent cancelation cleanup additions (by rpj) could not be implemented


+	without sacrificing some of the efficiency in Gottlob's design. In particular,


+	although each once_control uses it's own event to block on, a global CS is


+	required to manage it - since the event must be either re-usable or


+	re-creatable under cancelation. This is not needed in the non-cancelable


+	design because it is able to mark the event as closed (forever).


+


+	When uncontested, a CS operation is equivalent to an Interlocked operation


+	in speed. So, in the final design with cancelability, an uncontested


+	once_control operation involves a minimum of five interlocked operations


+	(including the LeaveCS operation).


+	


+	ALTERNATIVES:


+	An alternative design from Alexander Terekhov proposed using a named mutex,


+	as sketched below:-


+


+	  if (!once_control) { // May be in TLS


+	    named_mutex::guard guard(&once_control2);


+	      if (!once_control2) {


+	         <init>


+	         once_control2 = true;


+	      }


+	    once_control = true;


+	  }


+	


+	A more detailed description of this can be found here:-


+	http://groups.yahoo.com/group/boost/message/15442


+


+	[Although the definition of a suitable PTHREAD_ONCE_INIT precludes use of the


+	TLS located flag, this is not critical.]


+	


+	There are three primary concerns though:-


+	1) The [named] mutex is 'created' even in the uncontended case.


+	2) A system wide unique name must be generated.


+	3) Win32 mutexes are VERY slow even in the uncontended 	case. An uncontested


+	Win32 mutex lock operation can be 50 (or more) times slower than an


+	uncontested EnterCS operation.


+


+	Ultimately, the named mutex trick is making use of the global locks maintained


+	by the kernel.


+


+	* pthread.h (pthread_once_t_): One flag and an event HANDLE added.


+	(PTHREAD_ONCE_INIT): Additional values included.


+


+2005-03-08  Ross Johnson  <rpj at callisto.canberra.edu.au>


+


+	* pthread_once.c (pthread_once): Redesigned to elliminate potential


+	starvation problem.


+	- reported by Gottlob Frege  <gottlobfrege at gmail.com>


+


+	* ptw32_threadDestroy.c (ptw32_threadDestroy): Implicit threads were


+	not closing their Win32 thread duplicate handle.


+	- reported by Dmitrii Semii <bogolt at gmail.com>


+


+2005-01-25  Ralf Kubis  <RKubis at mc.com>


+


+	* Attempted acquisition of recursive mutex was causing waiting


+	threads to not be woken when the mutex is released.


+


+	* GNUmakefile (GCE): Generate correct version resource comments.


+


+2005-01-01  Konstantin Voronkov  <beowinkle at yahoo.com>


+


+	* pthread_mutex_lock.c (pthread_mutex_lock): The new atomic exchange


+	mutex algorithm is known to allow a thread to steal the lock off


+	FIFO waiting threads. The next waiting FIFO thread gets a spurious


+	wake-up and must attempt to re-acquire the lock. The woken thread


+	was setting itself as the mutex's owner before the re-acquisition.


+


+2004-11-22  Ross Johnson  <rpj at callisto.canberra.edu.au>


+


+	* pthread_cond_wait.c (ptw32_cond_wait_cleanup): Undo change


+	from 2004-11-02.


+	* Makefile (DLL_VER): Added for DLL naming suffix - see README.


+	* GNUmakefile (DLL_VER): Likewise.


+	* Wmakefile (DLL_VER): Likewise.


+	* Bmakefile (DLL_VER): Likewise.


+	* pthread.dsw (version.rc): Added to MSVS workspace.


+


+2004-11-20  Boudewijn Dekker  <b.dekker at ellipsis.nl>


+


+	* pthread_getspecific.c (pthread_getspecific): Check for


+	invalid (NULL) key argument.


+


+2004-11-19  Ross Johnson  <rpj at callisto.canberra.edu.au>


+


+	* config.h (PTW32_THREAD_ID_REUSE_INCREMENT): Added to allow


+	building the library for either unique thread IDs like Solaris


+	or non-unique thread IDs like Linux; allows application developers


+	to override the library's default insensitivity to some apps


+	that may not be strictly POSIX compliant.


+	* version.rc: New resource module to encode version information


+	within the DLL.


+	* pthread.h: Added PTW32_VERSION* defines and grouped sections


+	required by resource compiler together; bulk of file is skipped


+	if RC_INVOKED. Defined some error numbers and other names for


+	Borland compiler.


+


+2004-11-02  Ross Johnson  <rpj at callisto.canberra.edu.au>


+


+	* pthread_cond_wait.c (ptw32_cond_wait_cleanup): Lock CV mutex at


+	start of cleanup handler rather than at the end.


+	* implement.h (PTW32_THREAD_REUSE_EMPTY): Renamed from *_BOTTOM.


+	(ptw32_threadReuseBottom): New global variable.


+	* global.c (ptw32_threadReuseBottom): Declare new variable.


+	* ptw32_reuse.c (ptw32_reuse): Change reuse LIFO stack to LILO queue


+	to more evenly distribute use of reusable thread IDs; use renamed


+	PTW32_THREAD_REUSE_EMPTY.


+	* ptw32_processTerminate.c (ptw2_processTerminate): Use renamed


+	PTW32_THREAD_REUSE_EMPTY.


+


+2004-10-31  Ross Johnson  <rpj at callisto.canberra.edu.au>


+


+	* implement.h (PThreadState): Add new state value


+	'PThreadStateCancelPending'.


+	* pthread_testcancel.c (pthread_testcancel): Use new thread


+	'PThreadStateCancelPending' state as short cut to avoid entering


+	kernel space via WaitForSingleObject() call. This was obviated


+	by user space sema acquisition in sem_wait() and sem_timedwait(),


+	which are also cancelation points. A call to pthread_testcancel()


+	was required, which introduced a kernel call, effectively nullifying


+	any gains made by the user space sem acquisition checks.


+	* pthread_cancel.c (pthread_cancel): Set new thread


+	'PThreadStateCancelPending' state.


+


+2004-10-29  Ross Johnson  <rpj at callisto.canberra.edu.au>


+


+	* implement.h (pthread_t): Renamed to ptw32_thread_t; struct contains


+	all thread state.


+	* pthread.h (ptw32_handle_t): New general purpose struct to serve


+	as a handle for various reusable object IDs - currently only used


+	by pthread_t; contains a pointer to ptw32_thread_t (thread state)


+	and a general purpose uint for use as a reuse counter or flags etc.


+	(pthread_t): typedef'ed to ptw32_handle_t; the uint is the reuse


+	counter that allows the library to maintain unique POSIX thread IDs.


+	When the pthread struct reuse stack was introduced, threads would


+	often acquire an identical ID to a previously destroyed thread. The


+	same was true for the pre-reuse stack library, by virtue of pthread_t


+	being the address of the thread struct. The new pthread_t retains


+	the reuse stack but provides virtually unique thread IDs.


+	* sem_wait.c (ptw32_sem_wait_cleanup): New routine used for


+	cancelation cleanup.


+	* sem_timedwait.c (ptw32_sem_timedwait_cleanup): Likewise.


+


+2004-10-22  Ross Johnson  <rpj at callisto.canberra.edu.au>


+


+	* sem_init.c (sem_init): Introduce a 'lock' element in order to


+	replace the interlocked operations with conventional serialisation.


+	This is needed in order to be able to atomically modify the sema


+	value and perform Win32 sema release operations. Win32 semaphores are


+	used instead of events in order to support efficient multiple posting.


+	If the whole modify/release isn't atomic, a race between


+	sem_timedwait() and sem_post() could result in a release when there is


+	no waiting semaphore, which would cause too many threads to proceed.


+	* sem_wait.c (sem_wait): Use new 'lock'element.


+	* sem_timedwait.c (sem_timedwait): Likewise.


+	* sem_trywait.c (sem_trywait): Likewise.


+	* sem_post.c (sem_post): Likewise.


+	* sem_post_multiple.c (sem_post_multiple): Likewise.


+	* sem_getvalue.c (sem_getvalue): Likewise.


+	* ptw32_semwait.c (ptw32_semwait): Likewise.


+	* sem_destroy.c (sem_destroy): Likewise; also tightened the conditions


+	for semaphore destruction; in particular, a semaphore will not be


+	destroyed if it has waiters.


+	* sem_timedwait.c (sem_timedwait): Added cancel cleanup handler to


+	restore sema value when cancelled.


+	* sem_wait.c (sem_wait): Likewise.


+


+2004-10-21  Ross Johnson  <rpj at callisto.canberra.edu.au>


+


+	* pthread_mutex_unlock.c (pthread_mutex_unlock): Must use PulseEvent()


+	rather than SetEvent() to reset the event if there are no waiters.


+


+2004-10-19  Ross Johnson  <rpj at callisto.canberra.edu.au>


+


+	* sem_init.c (sem_init): New semaphore model based on the same idea


+	as mutexes, i.e. user space interlocked check to avoid 


+	unnecessarily entering kernel space. Wraps the Win32 semaphore and


+	keeps it's own counter. Although the motivation to do this has existed


+	for a long time, credit goes to Alexander Terekhov for providing


+	the logic. I have deviated slightly from AT's logic to add the waiters


+	count, which has made the code more complicated by adding cancelation


+	cleanup. This also appears to have broken the VCE (C++ EH) version of


+	the library (the same problem as previously reported - see BUGS #2),


+	only apparently not fixable using the usual workaround, nor by turning


+	all optimisation off. The GCE version works fine, so it is presumed to


+	be a bug in MSVC++ 6.0. The cancelation exception is thrown and caught


+	correctly, but the cleanup class destructor is never called. The failing


+	test is tests\semaphore4.c.


+	* sem_wait.c (sem_wait): Implemented user space check model.


+	* sem_post.c (sem_post): Likewise.


+	* sem_trywait.c (sem_trywait): Likewise.


+	* sem_timedwait.c (sem_timedwait): Likewise.


+	* sem_post_multiple.c (sem_post_multiple): Likewise.


+	* sem_getvalue.c (sem_getvalue): Likewise.


+	* ptw32_semwait.c (ptw32_semwait): Likewise.


+	* implement.h (sem_t_): Add counter element.


+


+2004-10-15  Ross Johnson  <rpj at callisto.canberra.edu.au>


+


+	* implement.h (pthread_mutex_t_): Use an event in place of


+	the POSIX semaphore.


+	* pthread_mutex_init.c: Create the event; remove semaphore init.


+	* pthread_mutex_destroy.c: Delete the event.


+	* pthread_mutex_lock.c: Replace the semaphore wait with the event wait.


+	* pthread_mutex_trylock.c: Likewise.


+	* pthread_mutex_timedlock.c: Likewise.


+	* pthread_mutex_unlock.c: Set the event.


+	


+2004-10-14  Ross Johnson  <rpj at callisto.canberra.edu.au>


+


+	* pthread_mutex_lock.c (pthread_mutex_lock): New algorithm using


+	Terekhov's xchg based variation of Drepper's cmpxchg model.


+	Theoretically, xchg uses fewer clock cycles than cmpxchg (using IA-32


+	as a reference), however, in my opinion bus locking dominates the


+	equation on smp systems, so the model with the least number of bus


+	lock operations in the execution path should win, which is Terekhov's


+	variant. On IA-32 uni-processor systems, it's faster to use the


+	CMPXCHG instruction without locking the bus than to use the XCHG


+	instruction, which always locks the bus. This makes the two variants


+	equal for the non-contended lock (fast lane) execution path on up


+	IA-32. Testing shows that the xchg variant is faster on up IA-32 as


+	well if the test forces higher lock contention frequency, even though


+	kernel calls should be dominating the times (on up IA-32, both


+	variants used CMPXCHG instructions and neither locked the bus).


+	* pthread_mutex_timedlock.c pthread_mutex_timedlock(): Similarly.


+	* pthread_mutex_trylock.c (pthread_mutex_trylock): Similarly.


+	* pthread_mutex_unlock.c (pthread_mutex_unlock): Similarly.


+	* ptw32_InterlockedCompareExchange.c (ptw32_InterlockExchange): New


+	function.


+	(PTW32_INTERLOCKED_EXCHANGE): Sets up macro to use inlined


+	ptw32_InterlockedExchange.


+	* implement.h (PTW32_INTERLOCKED_EXCHANGE): Set default to


+	InterlockedExchange().


+	* Makefile: Building using /Ob2 so that asm sections within inline


+	functions are inlined.


+


+2004-10-08  Ross Johnson  <rpj at callisto.canberra.edu.au>


+


+	* pthread_mutex_destroy.c (pthread_mutex_destroy): Critical Section


+	element is no longer required.


+	* pthread_mutex_init.c (pthread_mutex_init): Likewise.


+	* pthread_mutex_lock.c (pthread_mutex_lock): New algorithm following


+	Drepper's paper at http://people.redhat.com/drepper/futex.pdf, but


+	using the existing semaphore in place of the futex described in the


+	paper. Idea suggested by Alexander Terekhov - see:


+	http://sources.redhat.com/ml/pthreads-win32/2003/msg00108.html


+	* pthread_mutex_timedlock.c pthread_mutex_timedlock(): Similarly.


+	* pthread_mutex_trylock.c (pthread_mutex_trylock): Similarly.


+	* pthread_mutex_unlock.c (pthread_mutex_unlock): Similarly.


+	* pthread_barrier_wait.c (pthread_barrier_wait): Use inlined version


+	of InterlockedCompareExchange() if possible - determined at


+	build-time.


+	* pthread_spin_destroy.c pthread_spin_destroy(): Likewise.


+	* pthread_spin_lock.c pthread_spin_lock():Likewise.


+	* pthread_spin_trylock.c (pthread_spin_trylock):Likewise.


+	* pthread_spin_unlock.c (pthread_spin_unlock):Likewise.


+	* ptw32_InterlockedCompareExchange.c: Sets up macro for inlined use.


+	* implement.h (pthread_mutex_t_): Remove Critical Section element.


+	(PTW32_INTERLOCKED_COMPARE_EXCHANGE): Set to default non-inlined


+	version of InterlockedCompareExchange().


+	* private.c: Include ptw32_InterlockedCompareExchange.c first for


+	inlining.


+	* GNUmakefile: Add commandline option to use inlined


+	InterlockedCompareExchange().


+	* Makefile: Likewise.


+


+2004-09-27  Ross Johnson  <rpj at callisto.canberra.edu.au>


+


+	* pthread_mutex_lock.c (pthread_mutex_lock): Separate


+	PTHREAD_MUTEX_NORMAL logic since we do not need to keep or check some


+	state required by other mutex types; do not check mutex pointer arg


+	for validity - leave this to the system since we are only checking


+	for NULL pointers. This should improve speed of NORMAL mutexes and


+	marginally improve speed of other type.


+	* pthread_mutex_trylock.c (pthread_mutex_trylock): Likewise.


+	* pthread_mutex_unlock.c (pthread_mutex_unlock): Likewise; also avoid


+	entering the critical section for the no-waiters case, with approx.


+	30% reduction in lock/unlock overhead for this case.


+	* pthread_mutex_timedlock.c (pthread_mutex_timedlock): Likewise; also


+	no longer keeps mutex if post-timeout second attempt succeeds - this


+	will assist applications that wish to impose strict lock deadlines,


+	rather than simply to escape from frozen locks.


+


+2004-09-09  Tristan Savatier  <tristan at mpegtv.com>


+	* pthread.h (struct pthread_once_t_): Qualify the 'done' element


+	as 'volatile'.


+	* pthread_once.c: Concerned about possible race condition,


+	specifically on MPU systems re concurrent access to multibyte types.


+	[Maintainer's note: the race condition is harmless on SPU systems


+	and only a problem on MPU systems if concurrent access results in an


+	exception (presumably generated by a hardware interrupt). There are


+	other instances of similar harmless race conditions that have not


+	been identified as issues.]


+


+2004-09-09  Ross Johnson  <rpj at callisto.canberra.edu.au>


+


+	* pthread.h: Declare additional types as volatile.


+


+2004-08-27  Ross Johnson  <rpj at callisto.canberra.edu.au>


+


+	* pthread_barrier_wait.c (pthread_barrier_wait): Remove excessive code


+	by substituting the internal non-cancelable version of sem_wait


+	(ptw32_semwait).


+


+2004-08-25  Ross Johnson  <rpj at callisto.canberra.edu.au>


+


+	* pthread_join.c (pthread_join): Rewrite and re-order the conditional


+	tests in an attempt to improve efficiency and remove a race


+	condition.


+


+2004-08-23  Ross Johnson  <rpj at callisto.canberra.edu.au>


+


+	* create.c (pthread_create): Don't create a thread if the thread


+	id pointer location (first arg) is inaccessible. A memory


+	protection fault will result if the thread id arg isn't an accessible


+	location. This is consistent with GNU/Linux but different to


+	Solaris or MKS (and possibly others), which accept NULL as meaning


+	'don't return the created thread's ID'. Applications that run


+	using pthreads-win32 will run on all other POSIX threads


+	implementations, at least w.r.t. this feature.


+


+	It was decided not to copy the Solaris et al behaviour because,


+	although it would have simplified some application porting (but only


+	from Solaris to Windows), the feature is not technically necessary,


+	and the alternative segfault behaviour helps avoid buggy application


+	code.


+


+2004-07-01  Anuj Goyal  <anuj.goyal at gmail.com>


+


+	* builddmc.bat: New; Windows bat file to build the library.


+	* config.h (__DMC__): Support for Digital Mars compiler.


+	* create.c (__DMC__): Likewise.


+	* pthread_exit.c (__DMC__): Likewise.


+	* pthread_join.c (__DMC__): Likewise.


+	* ptw32_threadDestroy.c (__DMC__): Likewise.


+	* ptw32_threadStart.c (__DMC__): Likewise.


+	* ptw32_throw.c (__DMC__): Likewise.


+


+2004-06-29  Anuj Goyal  <anuj.goyal at gmail.com>


+


+	* pthread.h (__DMC__): Initial support for Digital Mars compiler.


+


+2004-06-29  Will Bryant  <will.bryant at ecosm.com>


+


+	* README.Borland: New; description of Borland changes.


+	* Bmakefile: New makefile for the Borland make utility.


+	* ptw32_InterlockedCompareExchange.c:


+	Add Borland compatible asm code.


+


+2004-06-26  Jason Bard  <BardJA at Npt.NUWC.Navy.Mil>


+


+	* pthread.h (HAVE_STRUCT_TIMESPEC): If undefined, define it


+	to avoid timespec struct redefined errors elsewhere in an


+	application.


+


+2004-06-21  Ross Johnson  <rpj at callisto.canberra.edu.au>


+


+	* pthread.h (PTHREAD_RECURSIVE_MUTEX_INITIALIZER): Mutex


+	initialiser added for compatibility with Linux threads and


+	others; currently not included in SUSV3.


+	* pthread.h (PTHREAD_ERRORCHECK_MUTEX_INITIALIZER): Likewise.


+	* pthread.h (PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP): Likewise.


+	* pthread.h (PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP): Likewise.


+


+	* ptw32_mutex_check_need_init.c (ptw32_mutex_check_need_init): 


+	Add new initialisers.


+


+	* pthread_mutex_lock.c (pthread_mutex_lock): Check for new


+	initialisers.


+	* pthread_mutex_trylock.c (pthread_mutex_trylock): Likewise.


+	* pthread_mutex_timedlock.c (pthread_mutex_timedlock): Likewise.


+	* pthread_mutex_unlock.c (pthread_mutex_unlock): Likewise.


+	* pthread_mutex_destroy.c (pthread_mutex_destroy): Likewise.


+


+2004-05-20  Ross Johnson  <rpj at callisto.canberra.edu.au>


+


+	* README.NONPORTABLE: Document pthread_win32_test_features_np().


+	* FAQ: Update various answers.


+


+2004-05-19  Ross Johnson  <rpj at callisto.canberra.edu.au>


+


+	* Makefile: Don't define _WIN32_WINNT on compiler command line.


+	* GNUmakefile: Likewise.


+


+2004-05-16  Ross Johnson  <rpj at callisto.canberra.edu.au>


+


+	* pthread_cancel.c (pthread_cancel): Adapted to use auto-detected


+	QueueUserAPCEx features at run-time.


+	(ptw32_RegisterCancelation): Drop in replacement for QueueUserAPCEx()


+	if it can't be used. Provides older style non-preemptive async


+	cancelation.


+	* pthread_win32_attach_detach_np.c (pthread_win32_attach_np):


+	Auto-detect quserex.dll and the availability of alertdrv.sys;


+	initialise and close on process attach/detach.


+	* global.c (ptw32_register_cancelation): Pointer to either


+	QueueUserAPCEx() or ptw32_RegisterCancelation() depending on


+	availability. QueueUserAPCEx makes pre-emptive async cancelation


+	possible.


+	* implement.h: Add definitions and prototypes related to QueueUserAPC.


+


+2004-05-16  Panagiotis E. Hadjidoukas <peh at hpclab.ceid.upatras.gr>


+


+	* QueueUserAPCEx (separate contributed package): Provides preemptive


+	APC feature.


+	* pthread_cancel.c (pthread_cancel): Initial integration of


+	QueueUserAPCEx into pthreads-win32 to provide true pre-emptive


+	async cancelation of threads, including blocked threads.


+


+2004-05-06  Makoto Kato  <raven at oldskool.jp>


+


+	* pthread.h (DWORD_PTR): Define typedef for older MSVC.


+	* pthread_cancel.c (AMD64): Add architecture specific Context register.


+	* ptw32_getprocessors.c: Use correct types (DWORD_PTR) for mask


+	variables.


+


+2004-04-06  P. van Bruggen  <pietvb at newbridges.nl>


+


+	* ptw32_threadDestroy.c: Destroy threadLock mutex to


+	close a memory leak.


+


+2004-02-13  Gustav Hallberg  <gustav at virtutech.com>


+


+	* pthread_equal.c: Remove redundant equality logic.


+


+2003-12-10  Philippe Di Cristo  <philipped at voicebox.com>


+


+	* sem_timedwait.c (sem_timedwait): Fix timeout calculations.


+


+2003-10-20  Alexander Terekhov  <TEREKHOV at de.ibm.com>


+


+	* pthread_mutex_timedlock.c (ptw32_semwait): Move to individual module.


+	* ptw32_semwait.c: New module.


+	* pthread_cond_wait.c (ptw32_cond_wait_cleanup): Replace cancelable


+	sem_wait() call with non-cancelable ptw32_semwait() call.


+	* pthread.c (private.c): Re-order for inlining. GNU C warned that


+	function ptw32_semwait() was defined 'inline' after it was called.


+	* pthread_cond_signal.c (ptw32_cond_unblock): Likewise.


+	* pthread_delay_np.c: Disable Watcom warning with comment.


+	* *.c (process.h): Remove include from .c files. This is conditionally


+	included by the common project include files.


+


+2003-10-20  James Ewing  <james.ewing at sveasoft.com>


+


+	* ptw32_getprocessors.c: Some Win32 environments don't have


+	GetProcessAffinityMask(), so always return CPU count = 1 for them.


+	* config.h (NEED_PROCESSOR_AFFINITY_MASK): Define for WinCE.


+	


+2003-10-15  Ross Johnson  <ross at callisto.canberra.edu.au>


+


+	* Re-indented all .c files using default GNU style to remove assorted


+	editor ugliness (used GNU indent utility in default style).


+


+2003-10-15  Alex Blanco  <Alex.Blanco at motorola.com>


+


+	* sem_init.c (sem_init): Would call CreateSemaphore even if the sema


+	struct calloc failed; was not freeing calloced memory if either


+	CreateSemaphore or CreateEvent failed.


+


+2003-10-14  Ross Johnson  <ross at callisto.canberra.edu.au>


+


+	* pthread.h: Add Watcom compiler compatibility. Esssentially just add


+	the cdecl attribute to all exposed function prototypes so that Watcom


+	generates function call code compatible with non-Watcom built libraries.


+	By default, Watcom uses registers to pass function args if possible rather


+	than pushing to stack.


+	* semaphore.h: Likewise.


+	* sched.h: Likewise.


+	* pthread_cond_wait.c (ptw32_cond_wait_cleanup): Define with cdecl attribute


+	for Watcom compatibility. This routine is called via pthread_cleanup_push so


+	it had to match function arg definition.


+	* Wmakefile: New makefile for Watcom builds.


+


+2003-09-14  Ross Johnson  <rpj at callisto.canberra.edu.au>


+


+	* pthread_setschedparam.c (pthread_setschedparam): Attempt to map


+	all priority levels between max and min (as returned by


+	sched_get_priority_min/max) to reasonable Win32 priority levels - i.e.


+	levels between THREAD_PRIORITY_LOWEST/IDLE to THREAD_PRIORITY_LOWEST and


+	between THREAD_PRIORITY_HIGHEST/TIME_CRITICAL to THREAD_PRIORITY_HIGHEST


+	while others remain unchanged; record specified thread priority level


+	for return by pthread_getschedparam.


+


+	Note that, previously, specified levels not matching Win32 priority levels


+	would silently leave the current thread priority unaltered.


+


+	* pthread_getschedparam.c (pthread_getschedparam): Return the priority


+	level specified by the latest pthread_setschedparam or pthread_create rather


+	than the actual running thread priority as returned by GetThreadPriority - as


+	required by POSIX. I.e. temporary or adjusted actual priority levels are not


+	returned by this routine.


+


+	* pthread_create.c (pthread_create): For priority levels specified via


+	pthread attributes, attempt to map all priority levels between max and


+	min (as returned by sched_get_priority_min/max) to reasonable Win32


+	priority levels; record priority level given via attributes, or


+	inherited from parent thread, for later return by pthread_getschedparam.


+


+	* ptw32_new.c (ptw32_new): Initialise pthread_t_ sched_priority element.


+


+	* pthread_self.c (pthread_self): Set newly created implicit POSIX thread


+	sched_priority to Win32 thread's current actual priority. Temporarily


+	altered priorities can't be avoided in this case.


+


+	* implement.h (struct pthread_t_): Add new sched_priority element.


+


+2003-09-12  Ross Johnson  <rpj at callisto.canberra.edu.au>


+


+	* sched_get_priority_min.c (sched_get_priority_min): On error should return -1


+	with errno set.


+	* sched_get_priority_max.c (sched_get_priority_max): Likewise.


+


+2003-09-03  Ross Johnson  <rpj at callisto.canberra.edu.au>


+


+	* w32_cancelableWait.c (ptw32_cancelable_wait): Allow cancelation


+	of implicit POSIX threads as well.


+


+2003-09-02  Ross Johnson  <rpj at callisto.canberra.edu.au>


+


+	* pthread_win32_attach_detach_np.c (pthread_win32_thread_detach_np):


+	Add comment.


+


+	* pthread_exit.c (pthread_exit): Fix to recycle the POSIX thread handle in


+	addition to calling user TSD destructors. Move the implicit POSIX thread exit


+	handling to ptw32_throw to centralise the logic.


+


+	* ptw32_throw.c (ptw32_throw): Implicit POSIX threads have no point


+	to jump or throw to, so cleanup and exit the thread here in this case. For


+	processes using the C runtime, the exit code will be set to the POSIX


+	reason for the throw (i.e. PTHREAD_CANCEL or the value given to pthread_exit).


+	Note that pthread_exit() already had similar logic, which has been moved to


+	here.


+


+	* ptw32_threadDestroy.c (ptw32_threadDestroy): Don't close the Win32 handle


+	of implicit POSIX threads - expect this to be done by Win32?


+


+2003-09-01  Ross Johnson  <rpj at callisto.canberra.edu.au>


+


+	* pthread_self.c (pthread_self): The newly aquired pthread_t must be


+	assigned to the reuse stack, not freed, if the routine fails somehow.


+


+2003-08-13  Ross Johnson  <rpj at ise.canberra.edu.au>


+


+	* pthread_getschedparam.c (pthread_getschedparam): An invalid thread ID


+	parameter was returning an incorrect error value; now uses a more exhaustive


+	check for validity.


+


+	* pthread_setschedparam.c (pthread_setschedparam): Likewise.


+


+	* pthread_join.c (pthread_join): Now uses a more exhaustive


+	check for validity.


+


+	* pthread_detach.c (pthread_detach): Likewise.


+


+	* pthread_cancel.c (pthread_cancel): Likewise.


+


+	* ptw32_threadDestroy.c (ptw32_threadDestroy): pthread_t structs are


+	never freed - push them onto a stack for reuse.


+


+	* ptw32_new.c (ptw32_new): Check for reusable pthread_t before dynamically


+	allocating new memory for the struct.


+


+	* pthread_kill.c (pthread_kill): New file; new routine; takes only a zero


+	signal arg so that applications can check the thread arg for validity; checks


+	that the underlying Win32 thread HANDLE is valid.


+


+	* pthread.h (pthread_kill): Add prototype.


+


+	* ptw32_reuse.c (ptw32_threadReusePop): New file; new routine; pop a


+	pthread_t off the reuse stack. pthread_t_ structs that have been destroyed, i.e.


+	have exited detached or have been joined, are cleaned up and put onto a reuse


+	stack. Consequently, thread IDs are no longer freed once calloced. The library


+	will attempt to get a struct off this stack before asking the system to alloc


+	new memory when creating threads. The stack is guarded by a global mutex.


+	(ptw32_threadReusePush): New routine; push a pthread_t onto the reuse stack.


+


+	* implement.h (ptw32_threadReusePush): Add new prototype.


+	(ptw32_threadReusePop): Likewise.


+	(pthread_t): Add new element.


+


+	* ptw32_processTerminate.c (ptw32_processTerminate): Delete the thread


+	reuse lock; free all thread ID structs on the thread reuse stack.


+


+	* ptw32_processInitialize.c (ptw32_processInitialize): Initialise the


+	thread reuse lock.


+


+2003-07-19  Ross Johnson  <rpj at ise.canberra.edu.au>


+


+	* GNUmakefile: modified to work under MsysDTK environment.


+	* pthread_spin_lock.c (pthread_spin_lock): Check for NULL arg.


+	* pthread_spin_unlock.c (pthread_spin_unlock): Likewise.


+	* pthread_spin_trylock.c (pthread_spin_trylock): Likewise;


+	fix incorrect pointer value if lock is dynamically initialised by


+	this function.


+	* sem_init.c (sem_init): Initialise sem_t value to quell compiler warning.


+	* sem_destroy.c (sem_destroy): Likewise.


+	* ptw32_threadStart.c (non-MSVC code sections): Include <exception> rather


+	than old-style <new.h>; fix all std:: namespace entities such as


+	std::terminate_handler instances and associated methods.


+	* ptw32_callUserDestroyRoutines.c (non-MSVC code sections): Likewise.


+


+2003-06-24  Piet van Bruggen  <pietvb at newbridges.nl>


+


+	* pthread_spin_destroy.c (pthread_spin_destroy): Was not freeing the


+	spinlock struct.


+


+2003-06-22  Nicolas Barry  <boozai at yahoo.com>


+


+	* pthread_mutex_destroy.c (pthread_mutex_destroy): When called


+	with a recursive mutex that was locked by the current thread, the


+	function was failing with a success return code.


+


+2003-05-15  Steven Reddie  <Steven.Reddie at ca.com>


+


+	* pthread_win32_attach_detach_np.c (pthread_win32_process_detach_np):


+	NULLify ptw32_selfThreadKey after the thread is destroyed, otherwise


+	destructors calling pthreads routines might resurrect it again, creating


+	memory leaks. Call the underlying Win32 Tls routine directly rather than


+	pthread_setspecific().


+	(pthread_win32_thread_detach_np): Likewise.


+


+2003-05-14  Viv  <vcotirlea at hotmail.com>


+


+	* pthread.dsp: Change /MT compile flag to /MD.


+


+2003-03-04  Alexander Terekhov  <TEREKHOV at de.ibm.com>


+


+	* pthread_mutex_timedlock.c (pthread_mutex_timedlock): Fix failure to


+	set ownership of mutex on second grab after abstime timeout.


+	- bug reported by Robert Strycek <strycek at posam.sk>


+


+2002-12-17  Thomas Pfaff  <tpfaff at gmx.net>


+


+	* pthread_mutex_lock.c (ptw32_semwait): New static routine to provide


+	a non-cancelable sem_wait() function. This is consistent with the


+	way that pthread_mutex_timedlock.c does it.


+	(pthread_mutex_lock): Use ptw32_semwait() instead of sem_wait().


+


+2002-12-11  Thomas Pfaff  <tpfaff at gmx.net>


+


+	* pthread_mutex_trylock.c: Should return EBUSY rather than EDEADLK.


+	* pthread_mutex_destroy.c: Remove redundant ownership test (the


+	trylock call does this for us); do not destroy a recursively locked


+	mutex.


+


+2002-09-20  Michael Johnson  <michaelj at maine.rr.com>


+


+	* pthread_cond_destroy.c (pthread_cond_destroy): 


+	When two different threads exist, and one is attempting to


+	destroy a condition variable while the other is attempting to


+	initialize a condition variable that was created with


+	PTHREAD_COND_INITIALIZER, a deadlock can occur. Shrink


+	the ptw32_cond_list_lock critical section to fix it.


+


+2002-07-31  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* ptw32_threadStart.c (ptw32_threadStart): Thread cancelLock


+	destruction moved to ptw32_threadDestroy().


+


+	* ptw32_threadDestroy.c (ptw32_threadDestroy):  Destroy


+	the thread's cancelLock. Moved here from ptw32_threadStart.c


+	to cleanup implicit threads as well.


+


+2002-07-30  Alexander Terekhov  <TEREKHOV at de.ibm.com>


+


+	* pthread_cond_wait.c (ptw32_cond_wait_cleanup): 


+	Remove code designed to avoid/prevent spurious wakeup


+	problems. It is believed that the sem_timedwait() call


+	is consuming a CV signal that it shouldn't and this is


+	breaking the avoidance logic.


+


+2002-07-30  Ross Johnson  <rpj at ise.canberra.edu.au>


+


+	* sem_timedwait.c (sem_timedwait): Tighten checks for


+	unreasonable abstime values - that would result in


+	unexpected timeout values.


+


+	* w32_CancelableWait.c (ptw32_cancelable_wait):


+	Tighten up return value checking and add comments.


+


+


+2002-06-08  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* sem_getvalue.c (sem_getvalue): Now returns a value for the


+	NEED_SEM version (i.e. earlier versions of WinCE).


+


+


+2002-06-04  Rob Fanner  <rfanner at stonethree.com>


+


+	* sem_getvalue.c (sem_getvalue): The Johnson M. Hart


+	approach didn't work - we are forced to take an


+	intrusive approach. We try to decrement the sema


+	and then immediately release it again to get the


+	value. There is a small probability that this may


+	block other threads, but only momentarily.


+


+2002-06-03  Ross Johnson  <rpj at ise.canberra.edu.au>


+


+	* sem_init.c (sem_init): Initialise Win32 semaphores


+	to _POSIX_SEM_VALUE_MAX (which this implementation


+	defines in pthread.h) so that sem_getvalue() can use


+	the trick described in the comments in sem_getvalue().


+	* pthread.h (_POSIX_SEM_VALUE_MAX): Defined.


+	(_POSIX_SEM_NSEMS_MAX): Defined - not used but may be


+	useful for source code portability.


+


+2002-06-03  Rob Fanner  <rfanner at stonethree.com>


+


+	* sem_getvalue.c (sem_getvalue): Did not work on NT.


+	Use approach suggested by Johnson M. Hart in his book


+	"Win32 System Programming".


+


+2002-02-28  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* errno.c: Compiler directive was incorrectly including code.


+	* pthread.h: Conditionally added some #defines from config.h


+	needed when not building the library. e.g. NEED_ERRNO, NEED_SEM.


+	(PTW32_DLLPORT): Now only defined if _DLL defined.


+	(_errno): Compiler directive was incorrectly including prototype.


+	* sched.h: Conditionally added some #defines from config.h


+	needed when not building the library.


+	* semaphore.h: Replace an instance of NEED_SEM that should


+	have been NEED_ERRNO. This change currently has nil effect.


+


+	* GNUmakefile: Correct some recent changes.


+


+	* Makefile: Add rule to generate pre-processor output.


+


+2002-02-23  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* pthread_rwlock_timedrdlock.c: New - untested.


+	* pthread_rwlock_timedwrlock.c: New - untested.


+	


+	* Testsuite passed (except known MSVC++ problems)


+


+	* pthread_cond_destroy.c: Expand the time change


+	critical section to solve deadlock problem.


+


+	* pthread.c: Add all remaining C modules.


+	* pthread.h: Use dllexport/dllimport attributes on functions


+	to avoid using pthread.def.


+	* sched.h: Likewise.


+	* semaphore.h: Likewise.


+	* GNUmakefile: Add new targets for single translation


+	unit build to maximise inlining potential; generate


+	pthread.def automatically.


+	* Makefile: Likewise, but no longer uses pthread.def.


+


+2002-02-20  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* pthread_cond_destroy.c (pthread_cond_destroy):


+	Enter the time change critical section earlier.


+


+2002-02-17  Ross Johnson  <rpj at setup1.ise.canberra.edu.au


+


+	* Testsuite passed.


+


+	* pthread_timechange_handler_np.c: New; following


+	a suggestion from Alexander Terekhov that CVs should


+	be broadcast so that they all re-evaluate their


+	condition variables and reset a new timeout if


+	required, whenever an application receives a


+	WM_TIMECHANGE message. This message indicates that


+	the system time has been changed. Therefore, CVs


+	waiting for a timeout set as an abs_time will possibly


+	not wake up at the expected time. Some applications


+	may not be tolerant of this.


+	* pthread_cond_init.c: Add CV to linked list.


+	* pthread_cond_destroy.c: Remove CV from linked list.


+	* global.c (ptw32_cond_list_head): New variable.


+	(ptw32_cond_list_tail): New variable.


+	(ptw32_cond_list_cs): New critical section.


+	* ptw32_processInitialize (ptw32_cond_list_cs): Initialize.


+	* ptw32_processTerminate (ptw32_cond_list_cs): Delete.


+


+


+	* Reduce executable size.


+	  -----------------------


+	When linking with the static library, only those


+	routines actually called, either directly or indirectly


+	should be included.


+


+	[Gcc has the -ffunction-segments option to do this but MSVC


+	doesn't have this feature as far as I can determine. Other


+	compilers are undetermined as well. - rpj]


+


+	* spin.c: Split file into function segments.


+	* ptw32_spinlock_check_need_init.c: Separated routine from spin.c.


+	* pthread_spin_init.c: Likewise.


+	* pthread_spin_destroy.c: Likewise.


+	* pthread_spin_lock.c: Likewise.


+	* pthread_spin_unlock.c: Likewise.


+	* pthread_spin_trylock.c: Likewise.


+


+	* sync.c: Split file into function segments.


+	* pthread_detach.c: Separated routine from sync.c.


+	* pthread_join.c: Likewise.


+


+	* tsd.c: Split file into function segments.


+	* pthread_key_create.c: Separated routine from tsd.c.


+	* pthread_key_delete.c: Likewise.


+	* pthread_setspecific.c: Likewise.


+	* pthread_getspecific.c: Likewise.


+


+	* sched.c: Split file into function segments.


+	* pthread_attr_setschedpolicy.c: Separated routine from sched.c.


+	* pthread_attr_getschedpolicy.c: Likewise.


+	* pthread_attr_setschedparam.c: Likewise.


+	* pthread_attr_getschedparam.c: Likewise.


+	* pthread_attr_setinheritsched.c: Likewise.


+	* pthread_attr_getinheritsched.c: Likewise.


+	* pthread_setschedparam.c: Likewise.


+	* pthread_getschedparam.c: Likewise.


+	* sched_get_priority_max.c: Likewise.


+	* sched_get_priority_min.c: Likewise.


+	* sched_setscheduler.c: Likewise.


+	* sched_getscheduler.c: Likewise.


+	* sched_yield.c: Likewise.


+


+


+2002-02-16  Ross Johnson  <rpj at setup1.ise.canberra.edu.au


+


+	Reduce executable size.


+	-----------------------


+	When linking with the static library, only those


+	routines actually called, either directly or indirectly


+	should be included.


+


+	[Gcc has the -ffunction-segments option to do this but MSVC


+	doesn't have this feature as far as I can determine. Other


+	compilers are undetermined as well. - rpj]


+


+	* mutex.c: Split file into function segments.


+	* pthread_mutexattr_destroy.c: Separated routine from mutex.c


+	* pthread_mutexattr_getpshared.c: Likewise.


+	* pthread_mutexattr_gettype.c: Likewise.


+	* pthread_mutexattr_init.c: Likewise.


+	* pthread_mutexattr_setpshared.c: Likewise.


+	* pthread_mutexattr_settype.c: Likewise.


+	* ptw32_mutex_check_need_init.c: Likewise.


+	* pthread_mutex_destroy.c: Likewise.


+	* pthread_mutex_init.c: Likewise.


+	* pthread_mutex_lock.c: Likewise.


+	* pthread_mutex_timedlock.c: Likewise.


+	* pthread_mutex_trylock.c: Likewise.


+	* pthread_mutex_unlock.c: Likewise.


+	


+	* private.c: Split file into function segments.


+	* ptw32_InterlockedCompareExchange.c: Separated routine from private.c


+	* ptw32_callUserDestroyRoutines.c: Likewise.


+	* ptw32_getprocessors.c: Likewise.


+	* ptw32_processInitialize.c: Likewise.


+	* ptw32_processTerminate.c: Likewise.


+	* ptw32_threadDestroy.c: Likewise.


+	* ptw32_threadStart.c: Likewise.


+	* ptw32_throw.c: Likewise.


+	* ptw32_timespec.c: Likewise.


+	* ptw32_tkAssocCreate.c: Likewise.


+	* ptw32_tkAssocDestroy.c: Likewise.


+


+	* rwlock.c: Split file into function segments.


+	* pthread_rwlockattr_destroy.c: Separated routine from rwlock.c


+	* pthread_rwlockattr_getpshared.c: Likewise.


+	* pthread_rwlockattr_init.c: Likewise.


+	* pthread_rwlockattr_setpshared.c: Likewise.


+	* ptw32_rwlock_check_need_init.c: Likewise.


+	* pthread_rwlock_destroy.c: Likewise.


+	* pthread_rwlock_init.c: Likewise.


+	* pthread_rwlock_rdlock.c: Likewise.


+	* pthread_rwlock_tryrdlock.c: Likewise.


+	* pthread_rwlock_trywrlock.c: Likewise.


+	* pthread_rwlock_unlock.c: Likewise.


+	* pthread_rwlock_wrlock.c: Likewise.


+


+2002-02-10  Ross Johnson  <rpj at setup1.ise.canberra.edu.au


+


+	Reduce executable size.


+	-----------------------


+	When linking with the static library, only those


+	routines actually called, either directly or indirectly


+	should be included.


+


+	[Gcc has the -ffunction-segments option to do this but MSVC


+	doesn't have this feature as far as I can determine. Other


+	compilers are undetermined as well. - rpj]


+


+	* nonportable.c: Split file into function segments.


+	* np_delay.c: Separated routine from nonportable.c


+	* np_getw32threadhandle.c: Likewise.


+	* np_mutexattr_setkind.c: Likewise.


+	* np_mutexattr_getkind.c: Likewise.


+	* np_num_processors.c: Likewise.


+	* np_win32_attach_detach.c: Likewise.


+


+	* misc.c: Split file into function segments.


+	* pthread_equal.c: Separated routine from nonportable.c.


+	* pthread_getconcurrency.c: Likewise.


+	* pthread_once.c: Likewise.


+	* pthread_self.c: Likewise.


+	* pthread_setconcurrency.c: Likewise.


+	* ptw32_calloc.c: Likewise.


+	* ptw32_new.c: Likewise.


+	* w32_CancelableWait.c: Likewise.


+	


+2002-02-09  Ross Johnson  <rpj at setup1.ise.canberra.edu.au


+


+	Reduce executable size.


+	-----------------------


+	When linking with the static library, only those


+	routines actually called, either directly or indirectly


+	should be included.


+


+	[Gcc has the -ffunction-segments option to do this but MSVC


+	doesn't have this feature as far as I can determine. Other


+	compilers are undetermined as well. - rpj]


+


+	* condvar.c: Split file into function segments.


+	* pthread_condattr_destroy.c: Separated routine from condvar.c.


+	* pthread_condattr_getpshared.c: Likewise.


+	* pthread_condattr_init.c: Likewise.


+	* pthread_condattr_setpshared.c: Likewise.


+	* ptw32_cond_check_need_init.c: Likewise.


+	* pthread_cond_destroy.c: Likewise.


+	* pthread_cond_init.c: Likewise.


+	* pthread_cond_signal.c: Likewise.


+	* pthread_cond_wait.c: Likewise.


+	


+2002-02-07  Alexander Terekhov<TEREKHOV at de.ibm.com>


+


+	* nonportable.c (pthread_delay_np): Make a true


+	cancelation point. Deferred cancels will interrupt the


+	wait.


+


+2002-02-07  Ross Johnson  <rpj at setup1.ise.canberra.edu.au


+


+	* misc.c (ptw32_new): Add creation of cancelEvent so that


+	implicit POSIX threads (Win32 threads with a POSIX face)


+	are cancelable; mainly so that pthread_delay_np doesn't fail


+	if called from the main thread.


+	* create.c (pthread_create): Remove creation of cancelEvent


+	from here; now in ptw32_new().


+


+	Reduce executable size.


+	-----------------------


+	When linking with the static library, only those


+	routines actually called, either directly or indirectly


+	should be included.


+


+	[Gcc has the -ffunction-segments option to do this but MSVC


+	doesn't have this feature as far as I can determine. Other


+	compilers are undetermined as well. - rpj]


+


+	* barrier.c: All routines are now in separate compilation units;


+	This file is used to congregate the separate modules for


+	potential inline optimisation and backward build compatibility.


+	* cancel.c: Likewise.


+	* pthread_barrierattr_destroy.c: Separated routine from cancel.c.


+	* pthread_barrierattr_getpshared.c: Likewise.


+	* pthread_barrierattr_init.c: Likewise.


+	* pthread_barrierattr_setpshared.c: Likewise.


+	* pthread_barrier_destroy.c: Likewise.


+	* pthread_barrier_init.c: Likewise.


+	* pthread_barrier_wait.c: Likewise.


+	* pthread_cancel.c: Likewise.


+	* pthread_setcancelstate.c: Likewise.


+	* pthread_setcanceltype.c: Likewise.


+	* pthread_testcancel.c: Likewise.


+


+2002-02-04  Max Woodbury <mtew at cds.duke.edu>


+


+	Reduced name space pollution.


+	-----------------------------


+	When the appropriate symbols are defined, the headers


+	will restrict the definitions of new names. In particular,


+	it must be possible to NOT include the <windows.h>


+	header and related definitions with some combination


+	of symbol definitions. Secondly, it should be possible


+	that additional definitions should be limited to POSIX 


+	compliant symbols by the definition of appropriate symbols.


+


+	* pthread.h: POSIX conditionals.


+	* sched.h: POSIX conditionals.


+	* semaphore.h: POSIX conditionals.


+


+	* semaphore.c: Included <limits.h>.


+	(sem_init): Changed magic 0x7FFFFFFFL to INT_MAX.


+	(sem_getvalue): Trial version.


+


+	Reduce executable size.


+	-----------------------


+	When linking with the static library, only those


+	routines actually called, either directly or indirectly


+	should be included.


+


+	[Gcc has the -ffunction-segments option to do this but MSVC


+	doesn't have this feature as far as I can determine. Other


+	compilers are undetermined as well. - rpj]


+


+	* semaphore.c: All routines are now in separate compilation units;


+	This file is used to congregate the separate modules for


+	potential inline optimisation and backward build compatibility.


+	* sem_close.c: Separated routine from semaphore.c.


+	* ptw32_decrease_semaphore.c: Likewise.


+	* sem_destroy.c: Likewise.


+	* sem_getvalue.c: Likewise.


+	* ptw32_increase_semaphore.c: Likewise.


+	* sem_init.c: Likewise.


+	* sem_open.c: Likewise.


+	* sem_post.c: Likewise.


+	* sem_post_multiple.c: Likewise.


+	* sem_timedwait.c: Likewise.


+	* sem_trywait.c: Likewise.


+	* sem_unlink.c: Likewise.


+	* sem_wait.c: Likewise.


+


+2002-02-04  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	The following extends the idea above to the rest of pthreads-win32 - rpj


+	


+	* attr.c: All routines are now in separate compilation units;


+	This file is used to congregate the separate modules for


+	potential inline optimisation and backward build compatibility.


+	* pthread_attr_destroy.c: Separated routine from attr.c.


+	* pthread_attr_getdetachstate.c: Likewise.


+	* pthread_attr_getscope.c: Likewise.


+	* pthread_attr_getstackaddr.c: Likewise.


+	* pthread_attr_getstacksize.c: Likewise.


+	* pthread_attr_init.c: Likewise.


+	* pthread_attr_is_attr.c: Likewise.


+	* pthread_attr_setdetachstate.c: Likewise.


+	* pthread_attr_setscope.c: Likewise.


+	* pthread_attr_setstackaddr.c: Likewise.


+	* pthread_attr_setstacksize.c: Likewise.


+


+	* pthread.c: Agregation of agregate modules for super-inlineability.


+


+2002-02-02  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* cancel.c: Rearranged some code and introduced checks


+	to disable cancelation at the start of a thread's cancelation


+	run to prevent double cancelation. The main problem


+	arises if a thread is canceling and then receives a subsequent


+	async cancel request.


+	* private.c: Likewise.


+	* condvar.c: Place pragmas around cleanup_push/pop to turn


+	off inline optimisation (/Obn where n>0 - MSVC only). Various


+	optimisation switches in MSVC turn this on, which interferes with


+	the way that cleanup handlers are run in C++ EH and SEH


+	code. Application code compiled with inline optimisation must


+	also wrap cleanup_push/pop blocks with the pragmas, e.g.


+	  #pragma inline_depth(0)


+	  pthread_cleanup_push(...)


+	    ...


+	  pthread_cleanup_pop(...)


+	  #pragma inline_depth(8)


+	* rwlock.c: Likewise.


+	* mutex.c: Remove attempts to inline some functions.


+	* signal.c: Modify misleading comment.


+


+2002-02-01  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* semaphore.c (sem_trywait): Fix missing errno return


+	for systems that define NEED_SEM (e.g. early WinCE).


+	* mutex.c (pthread_mutex_timedlock): Return ENOTSUP


+	for systems that define NEED_SEM since they don't


+	have sem_trywait().


+


+2002-01-27  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* mutex.c (pthread_mutex_timedlock): New function suggested by


+	Alexander Terekhov. The logic required to implement this


+	properly came from Alexander, with some collaboration


+	with Thomas Pfaff.


+	(pthread_mutex_unlock): Wrap the waiters check and sema


+	post in a critical section to prevent a race with


+	pthread_mutex_timedlock.


+	(ptw32_timed_semwait): New function;


+	returns a special result if the absolute timeout parameter


+	represents a time already passed when called; used by


+	pthread_mutex_timedwait(). Have deliberately not reused


+	the name "ptw32_sem_timedwait" because they are not the same


+	routine.


+	* condvar.c (ptw32_cond_timedwait): Use the new sem_timedwait()


+	instead of ptw32_sem_timedwait(), which now has a different


+	function. See previous.


+	* implement.h: Remove prototype for ptw32_sem_timedwait.


+	See next.


+	(pthread_mutex_t_): Add critical section element for access


+	to lock_idx during mutex post-timeout processing.


+	* semaphore.h (sem_timedwait): See next.


+	* semaphore.c (sem_timedwait): See next.


+	* private.c (ptw32_sem_timedwait): Move to semaphore.c


+	and rename as sem_timedwait().


+


+2002-01-18  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* sync.c (pthread_join): Was getting the exit code from the


+	calling thread rather than the joined thread if


+	defined(__MINGW32__) && !defined(__MSVCRT__).


+


+2002-01-15  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* pthread.h: Unless the build explicitly defines __CLEANUP_SEH,


+	__CLEANUP_CXX, or __CLEANUP_C, then the build defaults to


+	__CLEANUP_C style cleanup. This style uses setjmp/longjmp


+	in the cancelation and thread exit implementations and therefore


+	won't do stack unwinding if linked to applications that have it


+	(e.g. C++ apps). This is currently consistent with most/all


+	commercial Unix POSIX threads implementations.


+


+	* spin.c (pthread_spin_init): Edit renamed function call.


+	* nonportable.c (pthread_num_processors_np): New.


+	(pthread_getprocessors_np): Renamed to ptw32_getprocessors


+	and moved to private.c.


+	* private.c (pthread_getprocessors): Moved here from


+	nonportable.c.


+	* pthread.def (pthread_getprocessors_np): Removed


+	from export list.


+


+	* rwlock.c (pthread_rwlockattr_init): New.


+	(pthread_rwlockattr_destroy): New.


+	(pthread_rwlockattr_getpshared): New.


+	(pthread_rwlockattr_setpshared): New.


+


+2002-01-14  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* attr.c (pthread_attr_setscope): Fix struct pointer


+	indirection error introduced 2002-01-04.


+	(pthread_attr_getscope): Likewise.


+


+2002-01-12  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* pthread.dsp (SOURCE): Add missing source files.


+


+2002-01-08  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* mutex.c (pthread_mutex_trylock): use


+	ptw32_interlocked_compare_exchange function pointer


+	rather than ptw32_InterlockedCompareExchange() directly


+	to retain portability to non-iX86 processors,


+	e.g. WinCE etc. The pointer will point to the native


+	OS version of InterlockedCompareExchange() if the


+	OS supports it (see ChangeLog entry of 2001-10-17).


+


+2002-01-07  Thomas Pfaff <tpfaff at gmx.net>, Alexander Terekhov <TEREKHOV at de.ibm.com>


+


+	* mutex.c (pthread_mutex_init): Remove critical


+	section calls.


+	(pthread_mutex_destroy): Likewise.


+	(pthread_mutex_unlock): Likewise.


+	(pthread_mutex_trylock): Likewise; uses


+	ptw32_InterlockedCompareExchange() to avoid need for


+	critical section; library is no longer i386 compatible;


+	recursive mutexes now increment the lock count rather


+	than return EBUSY; errorcheck mutexes return EDEADLCK


+	rather than EBUSY. This behaviour is consistent with the


+	Solaris pthreads implementation.


+	* implement.h (pthread_mutex_t_): Remove critical


+	section element - no longer needed.


+	


+


+2002-01-04  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* attr.c (pthread_attr_setscope): Add more error


+	checking and actually store the scope value even


+	though it's not really necessary.


+	(pthread_attr_getscope): Return stored value.


+	* implement.h (pthread_attr_t_): Add new scope element.


+	* ANNOUNCE: Fix out of date comment next to


+	pthread_attr_setscope in conformance section.


+


+2001-12-21  Alexander Terekhov <TEREKHOV at de.ibm.com>


+


+	* mutex.c (pthread_mutex_lock): Decrementing lock_idx was


+	not thread-safe.


+	(pthread_mutex_trylock): Likewise.


+


+2001-10-26  prionx@juno.com


+


+	* semaphore.c (sem_init): Fix typo and missing bracket


+	in conditionally compiled code. Only older versions of


+	WinCE require this code, hence it doesn't normally get


+	tested; somehow when sem_t reverted to an opaque struct


+	the calloc NULL check was left in the conditionally included


+	section.


+	(sem_destroy): Likewise, the calloced sem_t wasn't being freed.


+


+2001-10-25  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* GNUmakefile (libwsock32): Add to linker flags for


+	WSAGetLastError() and WSASetLastError().


+	* Makefile (wsock32.lib): Likewise.


+	* create.c: Minor mostly inert changes.


+	* implement.h (PTW32_MAX): Move into here and renamed


+	from sched.h.


+	(PTW32_MIN): Likewise.


+	* GNUmakefile (TEST_ICE): Define if testing internal


+	implementation of InterlockedCompareExchange.


+	* Makefile (TEST_ICE): Likewise.


+	* private.c (TEST_ICE): Likewise.


+	


+2001-10-24  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* attr.c (pthread_attr_setstacksize): Quell warning


+	from LCC by conditionally compiling the stacksize


+	validity check. LCC correctly warns that the condition


+	(stacksize < PTHREAD_STACK_MIN) is suspicious


+	because STACK_MIN is 0 and stacksize is of type


+	size_t (or unsigned int).


+


+2001-10-17  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* barrier.c: Move _LONG and _LPLONG defines into


+	implement.h; rename to PTW32_INTERLOCKED_LONG and


+	PTW32_INTERLOCKED_LPLONG respectively.


+	* spin.c: Likewise; ptw32_interlocked_compare_exchange used


+	in place of InterlockedCompareExchange directly.


+	* global.c (ptw32_interlocked_compare_exchange): Add


+	prototype for this new routine pointer to be used when


+	InterlockedCompareExchange isn't supported by Windows.


+	* nonportable.c (pthread_win32_process_attach_np): Check for


+	support of InterlockedCompareExchange in kernel32 and assign its


+	address to ptw32_interlocked_compare_exchange if it exists, or


+	our own ix86 specific implementation ptw32_InterlockedCompareExchange.


+	*private.c (ptw32_InterlockedCompareExchange): An


+	implementation of InterlockedCompareExchange() which is


+	specific to ix86; written directly in assembler for either


+	MSVC or GNU C; needed because Windows 95 doesn't support


+	InterlockedCompareExchange().


+


+	* sched.c (sched_get_priority_min): Extend to return


+	THREAD_PRIORITY_IDLE.


+	(sched_get_priority_max): Extend to return


+	THREAD_PRIORITY_CRITICAL.


+


+2001-10-15  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* spin.c (pthread_spin_lock): PTHREAD_SPINLOCK_INITIALIZER


+	was causing a program fault.


+	(pthread_spin_init): Could have alloced memory


+	without freeing under some error conditions.


+


+	* mutex.c (pthread_mutex_init): Move memory


+	allocation of mutex struct after checking for


+	PROCESS_SHARED.


+


+2001-10-12  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* spin.c (pthread_spin_unlock): Was not returning


+	EPERM if the spinlock was not locked, for multi CPU


+	machines.


+


+2001-10-08  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* spin.c (pthread_spin_trylock): Was not returning


+	EBUSY for multi CPU machines.


+


+2001-08-24  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* condvar.c (pthread_cond_destroy): Remove cv element


+	that is no longer used.


+	* implement.h: Likewise.


+


+2001-08-23  Alexander Terekhov <TEREKHOV at de.ibm.com>


+


+	* condvar.c (pthread_cond_destroy): fix bug with


+	respect to deadlock in the case of concurrent


+	_destroy/_unblock; a condition variable can be destroyed


+	immediately after all the threads that are blocked on


+	it are awakened.


+


+2001-08-23  Phil Frisbie, Jr. <phil at hawksoft.com>


+


+	* tsd.c (pthread_getspecific): Preserve the last


+	winsock error [from WSAGetLastError()].


+


+2001-07-18  Scott McCaskill <scott at magruder.org>


+


+	* mutex.c (pthread_mutexattr_init): Return ENOMEM


+	immediately and don't dereference the NULL pointer


+	if calloc fails.


+	(pthread_mutexattr_getpshared): Don't dereference


+	a pointer that is possibly NULL.


+	* barrier.c (pthread_barrierattr_init): Likewise


+	(pthread_barrierattr_getpshared): Don't dereference


+	a pointer that is possibly NULL.


+	* condvar.c (pthread_condattr_getpshared): Don't dereference


+	a pointer that is possibly NULL.


+


+2001-07-15  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* rwlock.c (pthread_rwlock_wrlock): Is allowed to be


+	a cancelation point; re-enable deferred cancelability


+	around the CV call.


+


+2001-07-10  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* barrier.c: Still more revamping. The exclusive access


+	mutex isn't really needed so it has been removed and replaced


+	by an InterlockedDecrement(). nSerial has been removed.


+	iStep is now dual-purpose. The process shared attribute


+	is now stored in the barrier struct.


+	* implement.h (pthread_barrier_t_): Lost some/gained one


+	elements.


+	* private.c (ptw32_threadStart): Removed some comments.


+


+2001-07-10  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* barrier.c: Revamped to fix the race condition. Two alternating


+	semaphores are used instead of the PulseEvent. Also improved


+	overall throughput by returning PTHREAD_BARRIER_SERIAL_THREAD


+	to the first waking thread.


+	* implement.h (pthread_barrier_t_): Revamped.


+


+2001-07-09  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* barrier.c: Fix several bugs in all routines. Now passes


+	tests/barrier5.c which is fairly rigorous. There is still


+	a non-optimal work-around for a race condition between


+	the barrier breeched event signal and event wait. Basically


+	the last (signalling) thread to hit the barrier yields


+	to allow any other threads, which may have lost the race,


+	to complete.


+


+2001-07-07  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* barrier.c: Changed synchronisation mechanism to a


+	Win32 manual reset Event and use PulseEvent to signal


+	waiting threads. If the implementation continued to use


+	a semaphore it would require a second semaphore and


+	some management to use them alternately as barriers. A


+	single semaphore allows threads to cascade from one barrier


+	through the next, leaving some threads blocked at the first.


+	* implement.h (pthread_barrier_t_): As per above.


+	* general: Made a number of other routines inlinable.


+


+2001-07-07  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* spin.c: Revamped and working; included static initialiser.


+	Now beta level.


+	* barrier.c: Likewise.


+	* condvar.c: Macro constant change; inline auto init routine.


+	* mutex.c: Likewise.


+	* rwlock.c: Likewise.


+	* private.c: Add support for spinlock initialiser.


+	* global.c: Likewise.


+	* implement.h: Likewise.


+	* pthread.h (PTHREAD_SPINLOCK_INITIALIZER): Fix typo.


+


+2001-07-05  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* barrier.c: Remove static initialisation - irrelevent


+	for this object.


+	* pthread.h (PTHREAD_BARRIER_INITIALIZER): Removed.


+	* rwlock.c (pthread_rwlock_wrlock): This routine is


+	not a cancelation point - disable deferred


+	cancelation around call to pthread_cond_wait().


+


+2001-07-05  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* spin.c: New module implementing spin locks.


+	* barrier.c: New module implementing barriers.


+	* pthread.h (_POSIX_SPIN_LOCKS): defined.


+	(_POSIX_BARRIERS): Defined.


+	(pthread_spin_*): Defined.


+	(pthread_barrier*): Defined.


+	(PTHREAD_BARRIER_SERIAL_THREAD): Defined.


+	* implement.h (pthread_spinlock_t_): Defined.


+	(pthread_barrier_t_): Defined.


+	(pthread_barrierattr_t_): Defined.


+


+	* mutex.c (pthread_mutex_lock): Return with the error


+	if an auto-initialiser initialisation fails.


+


+	* nonportable.c (pthread_getprocessors_np): New; gets the


+	number of available processors for the current process.


+


+2001-07-03  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* pthread.h (_POSIX_READER_WRITER_LOCKS): Define it


+	if not already defined.


+


+2001-07-01  Alexander Terekhov <TEREKHOV at de.ibm.com>


+


+	* condvar.c: Fixed lost signal bug reported by Timur Aydin


+	(taydin@snet.net).


+	[RPJ (me) didn't translate the original algorithm


+	correctly.]


+	* semaphore.c: Added sem_post_multiple; this is a useful


+	routine, but it doesn't appear to be standard. For now it's


+	not an exported function.


+	


+2001-06-25  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* create.c (pthread_create): Add priority inheritance


+	attributes.


+	* mutex.c (pthread_mutex_lock): Remove some overhead for


+	PTHREAD_MUTEX_NORMAL mutex types. Specifically, avoid


+	calling pthread_self() and pthread_equal() to check/set


+	the mutex owner. Introduce a new pseudo owner for this


+	type. Test results suggest increases in speed of up to


+	90% for non-blocking locks.


+	This is the default type of mutex used internally by other


+	synchronising objects, ie. condition variables and


+	read-write locks. The test rwlock7.c shows about a


+	30-35% speed increase over snapshot 2001-06-06. The


+	price of this is that the application developer


+	must ensure correct behaviour, or explicitly set the


+	mutex to a safer type such as PTHREAD_MUTEX_ERRORCHECK.


+	For example, PTHREAD_MUTEX_NORMAL (or PTHREAD_MUTEX_DEFAULT)


+	type mutexes will not return an error if a thread which is not


+	the owner calls pthread_mutex_unlock. The call will succeed


+	in unlocking the mutex if it is currently locked, but a


+	subsequent unlock by the true owner will then fail with EPERM.


+	This is however consistent with some other implementations.


+	(pthread_mutex_unlock): Likewise.


+	(pthread_mutex_trylock): Likewise.


+	(pthread_mutex_destroy): Likewise.


+	* attr.c (pthread_attr_init): PTHREAD_EXPLICIT_SCHED is the


+	default inheritance attribute; THREAD_PRIORITY_NORMAL is


+	the default priority for new threads.


+	* sched.c (pthread_attr_setschedpolicy): Added routine.


+	(pthread_attr_getschedpolicy): Added routine.


+	(pthread_attr_setinheritsched): Added routine.


+	(pthread_attr_getinheritsched): Added routine.


+	* pthread.h (sched_rr_set_interval): Added as a macro;


+	returns -1 with errno set to ENOSYS.


+


+2001-06-23  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	*sched.c (pthread_attr_setschedparam): Add priority range


+	check.


+	(sched_setscheduler): New function; checks for a valid


+	pid and policy; checks for permission to set information


+	in the target process; expects pid to be a Win32 process ID,


+	not a process handle; the only scheduler policy allowed is


+	SCHED_OTHER.


+	(sched_getscheduler): Likewise, but checks for permission


+	to query.


+	* pthread.h (SCHED_*): Moved to sched.h as defined in the


+	POSIX standard.


+	* sched.h (SCHED_*): Moved from pthread.h.


+	(pid_t): Defined if necessary.


+	(sched_setscheduler): Defined.


+	(sched_getscheduler): Defined.


+	* pthread.def (sched_setscheduler): Exported.


+	(sched_getscheduler): Likewise.


+


+2001-06-23  Ralf Brese <Ralf.Brese at pdb4.siemens.de>


+


+	* create.c (pthread_create): Set thread priority from


+	thread attributes.


+


+2001-06-18  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* Made organisational-only changes to UWIN additions.


+	* dll.c (dllMain): Moved UWIN process attach code


+	to pthread_win32_process_attach_np(); moved


+	instance of pthread_count to global.c.


+	* global.c (pthread_count): Moved from dll.c.


+	* nonportable.c (pthread_win32_process_attach_np):


+	Moved _UWIN code to here from dll.c.


+	* implement.h (pthread_count): Define extern int.


+	* create.c (pthread_count): Remove extern int.


+	* private.c (pthread_count): Likewise.


+	* exit.c (pthread_count): Likewise.


+


+2001-06-18  David Korn <dgk at research.att.com>


+


+	* dll.c: Added changes necessary to work with UWIN.


+	* create.c: Likewise.


+	* pthread.h: Likewise.


+	* misc.c: Likewise.


+	* exit.c: Likewise.


+	* private.c: Likewise.


+	* implement.h: Likewise.


+	There is some room at the start of struct pthread_t_


+	to implement the signal semantics in UWIN's posix.dll


+	although this is not yet complete.


+	* Nmakefile: Compatible with UWIN's Nmake utility.


+	* Nmakefile.tests: Likewise - for running the tests.


+


+2001-06-08  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* semaphore.h (sem_t): Fixed for compile and test.


+	* implement.h (sem_t_): Likewise.


+	* semaphore.c: Likewise.


+	* private.c (ptw32_sem_timedwait): Updated to use new


+	opaque sem_t.


+


+2001-06-06  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* semaphore.h (sem_t): Is now an opaque pointer;


+	moved actual definition to implement.h.


+	* implement.h (sem_t_): Move here from semaphore.h;


+	was the definition of sem_t.


+	* semaphore.c: Wherever necessary, changed use of sem


+	from that of a pointer to a pointer-pointer; added


+	extra checks for a valid sem_t; NULL sem_t when


+	it is destroyed; added extra checks when creating


+	and destroying sem_t elements in the NEED_SEM


+	code branches; changed from using a pthread_mutex_t


+	((*sem)->mutex) to CRITICAL_SECTION ((*sem)->sem_lock_cs)


+	in NEED_SEM branches for access serialisation.


+


+2001-06-06  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* mutex.c (pthread_mutexattr_init): Remove 


+	ptw32_mutex_default_kind.


+	


+2001-06-05  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* nonportable.c (pthread_mutex_setdefaultkind_np):


+	Remove - should not have been included in the first place.


+	(pthread_mutex_getdefaultkind_np): Likewise.


+	* global.c (ptw32_mutex_default_kind): Likewise.


+	* mutex.c (pthread_mutex_init): Remove use of


+	ptw32_mutex_default_kind.


+	* pthread.h (pthread_mutex_setdefaultkind_np): Likewise.


+	(pthread_mutex_getdefaultkind_np): Likewise.


+	* pthread.def (pthread_mutexattr_setkind_np): Added.


+	(pthread_mutexattr_getkind_np): Likewise.


+


+	* README: Many changes that should have gone in before


+	the last snapshot.


+	* README.NONPORTABLE: New - referred to by ANNOUNCE


+	but never created; documents the non-portable routines


+	included in the library - moved from README with new


+	routines added.


+	* ANNOUNCE (pthread_mutexattr_setkind_np): Added to


+	compliance list.


+	(pthread_mutexattr_getkind_np): Likewise.


+


+2001-06-04  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* condvar.c: Add original description of the algorithm as


+	developed by Terekhov and Thomas, plus reference to


+	README.CV.


+


+2001-06-03  Alexander Terekhov <TEREKHOV at de.ibm.com>, Louis Thomas <lthomas at arbitrade.com>


+


+	* condvar.c (pthread_cond_init): Completely revamped.


+	(pthread_cond_destroy): Likewise.


+	(ptw32_cond_wait_cleanup): Likewise.


+	(ptw32_cond_timedwait): Likewise.


+	(ptw32_cond_unblock): New general signaling routine.


+	(pthread_cond_signal): Now calls ptw32_cond_unblock.


+	(pthread_cond_broadcast): Likewise.


+	* implement.h (pthread_cond_t_): Revamped.


+	* README.CV: New; explanation of the above changes.


+


+2001-05-30  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* pthread.h (rand_r): Fake using _seed argument to quell


+	compiler warning (compiler should optimise this away later).


+


+	* GNUmakefile (OPT): Leave symbolic information out of the library


+	and increase optimisation level - for smaller faster prebuilt


+	dlls.


+	


+2001-05-29  Milan Gardian <Milan.Gardian at LEIBINGER.com>


+


+	* Makefile: fix typo.


+	* pthreads.h: Fix problems with stdcall/cdecl conventions, in particular


+	remove the need for PT_STDCALL everywhere; remove warning supression.


+	* (errno): Fix the longstanding "inconsistent dll linkage" problem


+	with errno; now also works with /MD debugging libs - 


+	warnings emerged when compiling pthreads library with /MD (or /MDd)


+	compiler switch, instead of /MT (or /MTd) (i.e. when compiling pthreads


+	using Multithreaded DLL CRT instead of Multithreaded statically linked


+	CRT).


+	* create.c (pthread_create): Likewise; fix typo.


+	* private.c (ptw32_threadStart): Eliminate use of terminate() which doesn't


+	throw exceptions.


+	* Remove unnecessary #includes from a number of modules -


+	[I had to #include malloc.h in implement.h for gcc - rpj].


+


+2001-05-29  Thomas Pfaff <tpfaff at gmx.net>


+


+	* pthread.h (PTHREAD_MUTEX_DEFAULT): New; equivalent to


+	PTHREAD_MUTEX_DEFAULT_NP.


+	* (PTHREAD_MUTEX_NORMAL): Similarly.


+	* (PTHREAD_MUTEX_ERRORCHECK): Similarly.


+	* (PTHREAD_MUTEX_RECURSIVE): Similarly.


+	* (pthread_mutex_setdefaultkind_np): New; Linux compatibility stub


+	for pthread_mutexattr_settype.


+	* (pthread_mutexattr_getkind_np): New; Linux compatibility stub


+	for pthread_mutexattr_gettype.


+	* mutex.c (pthread_mutexattr_settype): New; allow


+	the following types of mutex:


+	  PTHREAD_MUTEX_DEFAULT_NP


+	  PTHREAD_MUTEX_NORMAL_NP


+	  PTHREAD_MUTEX_ERRORCHECK_NP


+	  PTHREAD_MUTEX_RECURSIVE_NP


+	* Note that PTHREAD_MUTEX_DEFAULT is equivalent to


+	PTHREAD_MUTEX_NORMAL - ie. mutexes should no longer


+	be recursive by default, and a thread will deadlock if it


+	tries to relock a mutex it already owns. This is inline with


+	other pthreads implementations.


+	* (pthread_mutex_lock): Process the lock request


+	according to the mutex type.


+	* (pthread_mutex_init): Eliminate use of Win32 mutexes as the


+	basis of POSIX mutexes - instead, a combination of one critical section


+	and one semaphore are used in conjunction with Win32 Interlocked* routines.


+	* (pthread_mutex_destroy): Likewise.


+	* (pthread_mutex_lock): Likewise.


+	* (pthread_mutex_trylock): Likewise.


+	* (pthread_mutex_unlock): Likewise.


+	* Use longjmp/setjmp to implement cancelation when building the library


+	using a C compiler which doesn't support exceptions, e.g. gcc -x c (note


+	that gcc -x c++ uses exceptions).


+	* Also fixed some of the same typos and eliminated PT_STDCALL as


+	Milan Gardian's patches above.


+


+2001-02-07  Alexander Terekhov <TEREKHOV at de.ibm.com>


+


+	* rwlock.c: Revamped.


+	* implement.h (pthread_rwlock_t_): Redefined.


+	This implementation does not have reader/writer starvation problem.


+	Rwlock attempts to behave more like a normal mutex with


+	races and scheduling policy determining who is more important;


+	It also supports recursive locking,


+	has less synchronization overhead (no broadcasts at all,


+	readers are not blocked on any condition variable) and seem to


+	be faster than the current implementation [W98 appears to be


+	approximately 15 percent faster at least - on top of speed increase


+	from Thomas Pfaff's changes to mutex.c - rpj].


+


+2000-12-29  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* Makefile: Back-out "for" loops which don't work.


+


+	* GNUmakefile: Remove the fake.a target; add the "realclean"


+	target; don't remove built libs under the "clean" target.


+


+	* config.h: Add a guard against multiple inclusion.


+


+	* semaphore.h: Add some defines from config.h to make


+	semaphore.h independent of config.h when building apps.


+


+	* pthread.h (_errno): Back-out previous fix until we know how to


+	fix it properly.


+


+	* implement.h (lockCount): Add missing element to pthread_mutex_t_.


+


+	* sync.c (pthread_join): Spelling fix in comment.


+


+	* private.c (ptw32_threadStart): Reset original termination


+	function (C++).


+	(ptw32_threadStart): Cleanup detached threads early in case


+	the library is statically linked.


+	(ptw32_callUserDestroyRoutines): Remove [SEH] __try block from


+	destructor call so that unhandled exceptions will be passed through


+	to the 	system; call terminate() from [C++] try block for the same


+	reason.


+


+	* tsd.c (pthread_getspecific): Add comment.


+


+	* mutex.c (pthread_mutex_init): Initialise new elements in


+	pthread_mutex_t.


+	(pthread_mutex_unlock): Invert "pthread_equal()" test.


+


+2000-12-28  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* semaphore.c (mode_t): Use ifndef HAVE_MODE_T to include definition.


+


+	* config.h.in (HAVE_MODE_T): Added.


+	(_UWIN): Start adding defines for the UWIN package.


+


+	* private.c (ptw32_threadStart): Unhandled exceptions are


+	now passed through to the system to deal with. This is consistent


+	with normal Windows behaviour. C++ applications may use


+	set_terminate() to override the default behaviour which is


+	to call ptw32_terminate(). Ptw32_terminate() cleans up some


+	POSIX thread stuff before calling the system default function


+	which calls abort(). The users termination function should conform


+	to standard C++ semantics which is to not return. It should


+	exit the thread (call pthread_exit()) or exit the application.


+	* private.c (ptw32_terminate): Added as the default set_terminate()


+	function. It calls the system default function after cleaning up


+	some POSIX thread stuff.


+


+	* implement.h (ptw32_try_enter_critical_section): Move


+	declaration.


+	* global.c (ptw32_try_enter_critical_section): Moved


+	from dll.c.


+	* dll.c: Move process and thread attach/detach code into


+	functions in nonportable.c.


+	* nonportable.c (pthread_win32_process_attach_np): Process


+	attach code from dll.c is now available to static linked


+	applications.


+	* nonportable.c (pthread_win32_process_detach_np): Likewise.


+	* nonportable.c (pthread_win32_thread_attach_np): Likewise.


+	* nonportable.c (pthread_win32_thread_detach_np): Likewise.


+


+	* pthread.h: Add new non-portable prototypes for static


+	linked applications.


+


+	* GNUmakefile (OPT): Increase optimisation flag and remove


+	debug info flag.


+


+	* pthread.def: Add new non-portable exports for static


+	linked applications.


+


+2000-12-11  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* FAQ: Update Answer 6 re getting a fully working


+	Mingw32 built library.


+


+2000-10-10  Steven Reddie <smr at essemer.com.au>


+ 


+        * misc.c (pthread_self): Restore Win32 "last error"


+        cleared by TlsGetValue() call in


+        pthread_getspecific()


+ 


+2000-09-20  Arthur Kantor <akantor at bexusa.com>


+ 


+        * mutex.c (pthread_mutex_lock): Record the owner


+        of the mutex. This requires also keeping count of


+        recursive locks ourselves rather than leaving it


+        to Win32 since we need to know when to NULL the


+        thread owner when the mutex is unlocked.


+        (pthread_mutex_trylock): Likewise.


+        (pthread_mutex_unlock): Check that the calling


+        thread owns the mutex, decrement the recursive


+        lock count, and NULL the owner if zero. Return


+        EPERM if the mutex is owned by another thread.


+        * implement.h (pthread_mutex_t_): Add ownerThread


+        and lockCount members.


+


+2000-09-13  Jef Gearhart <jgearhart at tpssys.com>


+


+	* mutex.c (pthread_mutex_init): Call


+	TryEnterCriticalSection through the pointer


+	rather than directly so that the dll can load


+	on Windows versions that can't resolve the


+	function, eg. Windows 95


+


+2000-09-09  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* pthread.h (ctime_r): Fix arg.


+


+2000-09-08  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* GNUmakefile(_WIN32_WINNT=0x400): Define in CFLAGS;


+	doesn't seem to be needed though.


+


+	* cancel.c (pthread_cancel): Must get "self" through


+	calling pthread_self() which will ensure a POSIX thread


+	struct is built for non-POSIX threads; return an error


+	if this fails


+	- Ollie Leahy <ollie at mpt.ie>


+	(pthread_setcancelstate): Likewise.


+	(pthread_setcanceltype): Likewise.


+	* misc.c (ptw32_cancelable_wait): Likewise.


+


+	* private.c (ptw32_tkAssocCreate): Remove unused #if 0


+	wrapped code.


+


+	* pthread.h (ptw32_get_exception_services_code):


+	Needed to be forward declared unconditionally.


+


+2000-09-06  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* cancel.c (pthread_cancel): If called from the main


+	thread "self" would be NULL; get "self" via pthread_self()


+	instead of directly from TLS so that an implicit


+	pthread object is created.


+


+	* misc.c (pthread_equal): Strengthen test for NULLs.


+


+2000-09-02  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* condvar.c (ptw32_cond_wait_cleanup): Ensure that all


+	waking threads check if they are the last, and notify


+	the broadcaster if so - even if an error occurs in the


+	waiter.


+


+	* semaphore.c (_decrease_semaphore): Should be


+	a call to ptw32_decrease_semaphore.


+	(_increase_semaphore): Should be a call to


+	ptw32_increase_semaphore.


+


+	* misc.c (ptw32_cancelable_wait): Renamed from


+	CancelableWait.


+	* rwlock.c (_rwlock_check*): Renamed to


+	ptw32_rwlock_check*.


+	* mutex.c (_mutex_check*): Renamed to ptw32_mutex_check*.


+	* condvar.c (cond_timed*): Renamed to ptw32_cond_timed*.


+	(_cond_check*): Renamed to ptw32_cond_check*.


+	(cond_wait_cleanup*): Rename to ptw32_cond_wait_cleanup*.


+	(ptw32_cond_timedwait): Add comments.


+


+2000-08-22  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* private.c (ptw32_throw): Fix exception test;


+	move exceptionInformation declaration.


+


+	* tsd.c (pthread_key_create): newkey wrongly declared.


+


+	* pthread.h: Fix comment block.


+


+2000-08-18  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* mutex.c (pthread_mutex_destroy): Check that the mutex isn't


+	held; invalidate the mutex as early as possible to avoid


+	contention; not perfect - FIXME!


+


+	* rwlock.c (pthread_rwlock_init): Remove redundant assignment


+	to "rw".


+	(pthread_rwlock_destroy): Invalidate the rwlock before


+	freeing up any of it's resources - to avoid contention.


+


+	* private.c (ptw32_tkAssocCreate): Change assoc->lock


+	to use a dynamically initialised mutex - only consumes


+	a W32 mutex or critical section when first used,


+	not before.


+


+	* mutex.c (pthread_mutex_init): Remove redundant assignment


+	to "mx".


+	(pthread_mutexattr_destroy): Set attribute to NULL


+	before freeing it's memory - to avoid contention.


+


+	* implement.h (PTW32_EPS_CANCEL/PTW32_EPS_EXIT):


+	Must be defined for all compilers - used as generic


+	exception selectors by ptw32_throw().


+


+	* Several: Fix typos from scripted edit session


+	yesterday.


+


+	* nonportable.c (pthread_mutexattr_setforcecs_np):


+	Moved this function from mutex.c.


+	(pthread_getw32threadhandle_np): New function to


+	return the win32 thread handle that the POSIX


+	thread is using.


+	* mutex.c (pthread_mutexattr_setforcecs_np):


+	Moved to new file "nonportable.c".


+


+	* pthread.h (PTW32_BUILD): Only	redefine __except


+	and catch compiler keywords if we aren't building


+	the library (ie. PTW32_BUILD is not defined) - 


+	this is safer than defining and then undefining


+	if not building the library.


+	* implement.h: Remove __except and catch undefines.


+	* Makefile (CFLAGS): Define PTW32_BUILD.


+	* GNUmakefile (CFLAGS): Define PTW32_BUILD.


+


+	* All appropriate: Change Pthread_exception* to


+	ptw32_exception* to be consistent with internal


+	identifier naming.


+


+	* private.c (ptw32_throw): New function to provide


+	a generic exception throw for all internal


+	exceptions and EH schemes.


+	(ptw32_threadStart): pthread_exit() value is now


+	returned via the thread structure exitStatus


+	element.


+	* exit.c (pthread_exit): pthread_exit() value is now


+	returned via the thread structure exitStatus


+	element.


+	* cancel.c (ptw32_cancel_self): Now uses ptw32_throw.


+	(pthread_setcancelstate): Ditto.


+	(pthread_setcanceltype): Ditto.


+	(pthread_testcancel): Ditto.


+	(pthread_cancel): Ditto.


+	* misc.c (CancelableWait): Ditto.


+	* exit.c (pthread_exit): Ditto.


+	* All applicable: Change PTW32_ prefix to


+	PTW32_ prefix to remove leading underscores


+	from private library identifiers.


+


+2000-08-17  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* All applicable: Change _pthread_ prefix to


+	ptw32_ prefix to remove leading underscores


+	from private library identifiers (single


+	and double leading underscores are reserved in the


+	ANSI C standard for compiler implementations).


+


+	* tsd.c (pthread_create_key): Initialise temporary


+	key before returning it's address to avoid race


+	conditions.


+


+2000-08-13  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* errno.c: Add _MD precompile condition; thus far


+	had no effect when using /MD compile option but I


+	thnk it should be there.


+


+	* exit.c: Add __cplusplus to various #if lines;


+	was compiling SEH code even when VC++ had


+	C++ compile options.


+


+	* private.c: ditto.


+


+	* create.c (pthread_create): Add PT_STDCALL macro to


+	function pointer arg in _beginthread().


+


+	* pthread.h: PT_STDCALL really does need to be defined


+	in both this and impliment.h; don't set it to __cdecl


+	- this macro is only used to extend function pointer


+	casting for functions that will be passed as parameters.


+	(~PThreadCleanup): add cast and group expression.


+	(_errno): Add _MD compile conditional.


+	(PtW32NoCatchWarn): Change pragma message.


+


+	* implement.h: Move and change PT_STDCALL define.


+


+	* need_errno.h: Add _MD to compilation conditional.


+


+	* GNUmakefile: Substantial rewrite for new naming


+	convention; set for nil optimisation (turn it up


+	when we have a working library build; add target


+	"fake.a" to build a libpthreadw32.a from the VC++


+	built DLL pthreadVCE.dll.


+


+	* pthread.def (LIBRARY): Don't specify in the .def


+	file - it is specified on the linker command line


+	since we now use the same .def file for variously


+	named .dlls.


+


+	* Makefile: Substantial rewrite for new naming


+	convention; default nmake target only issues a


+	help message; run nmake with specific target


+	corresponding to the EH scheme being used.


+


+	* README: Update information; add naming convention


+	explanation.


+


+	* ANNOUNCE: Update information.


+


+2000-08-12  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* pthread.h: Add compile-time message when using


+	MSC_VER compiler and C++ EH to warn application


+	programmers to use PtW32Catch instead of catch(...)


+	if they want cancelation and pthread_exit to work.


+


+	* implement.h: Remove #include <semaphore.h>; we


+	use our own local semaphore.h.


+


+2000-08-10  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* cleanup.c (pthread_pop_cleanup): Remove _pthread


+	prefix from __except and catch keywords; implement.h


+	now simply undefines ptw32__except and


+	ptw32_catch if defined; VC++ was not textually


+	substituting ptw32_catch etc back to catch as


+	it was redefined; the reason for using the prefixed


+	version was to make it clear that it was not using


+	the pthread.h redefined catch keyword.


+


+	* private.c (ptw32_threadStart): Ditto.


+	(ptw32_callUserDestroyRoutines): Ditto.


+


+	* implement.h (ptw32__except): Remove #define.


+	(ptw32_catch): Remove #define.


+


+	* GNUmakefile (pthread.a): New target to build


+	libpthread32.a from pthread.dll using dlltool.


+


+	* buildlib.bat: Duplicate cl commands with args to


+	build C++ EH version of pthread.dll; use of .bat


+	files is redundant now that nmake compatible


+	Makefile is included; used as a kludge only now.


+


+	* Makefile: Localise some macros and fix up the clean:


+	target to extend it and work properly.


+


+	* CONTRIBUTORS: Add contributors.


+


+	* ANNOUNCE: Updated.


+


+	* README: Updated.


+


+2000-08-06  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* pthread.h: Remove #warning - VC++ doesn't accept it.


+


+2000-08-05  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* pthread.h (PtW32CatchAll): Add macro. When compiling


+	applications using VC++ with C++ EH rather than SEH


+	'PtW32CatchAll' must be used in place of any 'catch( ... )'


+	if the application wants pthread cancelation or


+	pthread_exit() to work.


+


+2000-08-03  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* pthread.h: Add a base class ptw32_exception for


+	library internal exceptions and change the "catch"


+	re-define macro to use it.


+


+2000-08-02  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* GNUmakefile (CFLAGS): Add -mthreads.


+	Add new targets to generate cpp and asm output.


+


+	* sync.c (pthread_join): Remove dead code.


+


+2000-07-25  Tristan Savatier <tristan at mpegtv.com>


+


+	* sched.c (sched_get_priority_max): Handle different WinCE and


+	Win32 priority values together.


+	(sched_get_priority_min): Ditto.


+


+2000-07-25  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* create.c (pthread_create): Force new threads to wait until


+	pthread_create has the new thread's handle; we also retain


+	a local copy of the handle for internal use until


+	pthread_create returns.


+


+	* private.c (ptw32_threadStart): Initialise ei[].


+	(ptw32_threadStart): When beginthread is used to start the


+	thread, force waiting until the creator thread had the 


+	thread handle.


+


+	* cancel.c (ptw32_cancel_thread): Include context switch


+	code for defined(_X86_) environments in addition to _M_IX86.


+


+	* rwlock.c (pthread_rwlock_destroy): Assignment changed


+	to avoid compiler warning.


+


+	* private.c (ptw32_get_exception_services_code): Cast


+	NULL return value to avoid compiler warning.


+


+	* cleanup.c (pthread_pop_cleanup): Initialise "cleanup" variable


+	to avoid compiler warnings.


+


+	* misc.c (ptw32_new): Change "new" variable to "t" to avoid


+	confusion with the C++ keyword of the same name.


+


+	* condvar.c (cond_wait_cleanup): Initialise lastWaiter variable.


+	(cond_timedwait): Remove unused local variables. to avoid


+	compiler warnings.


+


+	* dll.c (dllMain): Remove 2000-07-21 change - problem


+	appears to be in pthread_create().


+


+2000-07-22  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* tsd.c (pthread_key_create): If a destructor was given


+	and the pthread_mutex_init failed, then would try to


+	reference a NULL pointer (*key); eliminate this section of


+	code by using a dynamically initialised mutex


+	(PTHREAD_MUTEX_INITIALIZER).


+


+	* tsd.c (pthread_setspecific): Return an error if


+	unable to set the value; simplify cryptic conditional.


+


+	* tsd.c (pthread_key_delete): Locking threadsLock relied


+	on mutex_lock returning an error if the key has no destructor.


+	ThreadsLock is only initialised if the key has a destructor.


+	Making this mutex a static could reduce the number of mutexes


+	used by an application since it is actually created only at


+	first use and it's often destroyed soon after.


+	


+2000-07-22  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* FAQ: Added Q5 and Q6.


+


+2000-07-21  David Baggett <dmb at itasoftware.com>


+


+	* dll.c: Include resource leakage work-around. This is a


+	partial FIXME which doesn't stop all leakage. The real


+	problem needs to be found and fixed.


+


+2000-07-21  Ross Johnson  <rpj at setup1.ise.canberra.edu.au>


+


+	* create.c (pthread_create): Set threadH to 0 (zero)


+	everywhere. Some assignments were using NULL. Maybe


+	it should be NULL everywhere - need to check. (I know


+	they are nearly always the same thing - but not by


+	definition.)


+


+	* misc.c (pthread_self): Try to catch NULL thread handles


+	at the point where they might be generated, even though


+	they should always be valid at this point.


+


+	* tsd.c (pthread_setspecific): return an error value if


+	pthread_self() returns NULL.


+


+	* sync.c (pthread_join): return an error value if


+	pthread_self() returns NULL.


+


+	* signal.c (pthread_sigmask): return an error value if


+	pthread_self() returns NULL.


+


+2000-03-02  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* attr.c (pthread_attr_init): Set default stacksize to zero (0)


+	rather than PTHREAD_STACK_MIN even though these are now the same.


+


+	* pthread.h (PTHREAD_STACK_MIN): Lowered to 0.


+


+2000-01-28  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* mutex.c (pthread_mutex_init): Free mutex if it has been alloced;


+	if critical sections can be used instead of Win32 mutexes, test


+	that the critical section works and return an error if not.


+


+2000-01-07  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* cleanup.c (pthread_pop_cleanup): Include SEH code only if MSC is not


+	compiling as C++.


+	(pthread_push_cleanup): Include SEH code only if MSC is not


+	compiling as C++.


+


+	* pthread.h: Include SEH code only if MSC is not


+	compiling as C++.


+


+	* implement.h: Include SEH code only if MSC is not


+	compiling as C++.


+


+	* cancel.c (ptw32_cancel_thread): Add _M_IX86 check.


+	(pthread_testcancel): Include SEH code only if MSC is not


+	compiling as C++.


+	(ptw32_cancel_self): Include SEH code only if MSC is not


+	compiling as C++.


+


+2000-01-06  Erik Hensema <erik.hensema at group2000.nl>


+


+	* Makefile: Remove inconsistencies in 'cl' args


+


+2000-01-04  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* private.c (ptw32_get_exception_services_code): New; returns


+	value of EXCEPTION_PTW32_SERVICES.


+	(ptw32_processInitialize): Remove initialisation of


+	ptw32_exception_services which is no longer needed.


+


+	* pthread.h (ptw32_exception_services): Remove extern.


+	(ptw32_get_exception_services_code): Add function prototype;


+	use this to return EXCEPTION_PTW32_SERVICES value instead of


+	using the ptw32_exception_services variable which I had


+	trouble exporting through pthread.def.


+


+	* global.c (ptw32_exception_services): Remove declaration.


+


+1999-11-22  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* implement.h: Forward declare ptw32_new();


+


+	* misc.c (ptw32_new): New; alloc and initialise a new pthread_t.


+	(pthread_self): New thread struct is generated 	by new routine


+	ptw32_new().


+


+	* create.c (pthread_create): New thread struct is generated


+	by new routine ptw32_new().


+


+1999-11-21  Ross Johnson  <rpj at special.ise.canberra.edu.au>


+


+	* global.c (ptw32_exception_services): Declare new variable. 


+


+	* private.c (ptw32_threadStart): Destroy thread's


+	cancelLock mutex; make 'catch' and '__except' usageimmune to


+	redfinitions in pthread.h.


+	(ptw32_processInitialize): Init new constant ptw32_exception_services.


+


+	* create.c (pthread_create): Initialise thread's cancelLock


+	mutex.


+


+	* cleanup.c (pthread_pop_cleanup): Make 'catch' and '__except'


+	usage immune to redfinition s in pthread.h.


+


+	* private.c: Ditto.


+


+	* pthread.h (catch): Redefine 'catch' so that C++ applications


+	won't catch our internal exceptions.


+	(__except): ditto for __except.


+


+	* implement.h (ptw32_catch): Define internal version


+	of 'catch' because 'catch' is redefined by pthread.h.


+	(__except): ditto for __except.


+	(struct pthread_t_): Add cancelLock mutex for async cancel


+	safety.


+


+1999-11-21  Jason Nye <jnye at nbnet.nb.ca>, Erik Hensema <erik.hensema at group2000.nl>


+


+	* cancel.c (ptw32_cancel_self): New; part of the async


+	cancellation implementation.


+	(ptw32_cancel_thread): Ditto; this function is X86


+	processor specific.


+	(pthread_setcancelstate): Add check for pending async


+	cancel request and cancel the calling thread if


+	required; add async-cancel safety lock.


+	(pthread_setcanceltype): Ditto.


+


+1999-11-13  Erik Hensema <erik.hensema at group2000.nl>


+


+	* configure.in (AC_OUTPUT): Put generated output into GNUmakefile


+	rather than Makefile. Makefile will become the MSC nmake compatible


+	version


+


+1999-11-13  John Bossom (John.Bossom@cognos.com>


+


+	* misc.c (pthread_self): Add a note about GetCurrentThread


+	returning a pseudo-handle


+


+1999-11-10  Todd Owen <towen at lucidcalm.dropbear.id.au>


+


+	* dll.c (dllMain): Free kernel32 ASAP.


+	If TryEnterCriticalSection is not being used, then free


+	the kernel32.dll handle now, rather than leaving it until


+	DLL_PROCESS_DETACH.


+


+	Note: this is not a pedantic exercise in freeing unused


+	resources!  It is a work-around for a bug in Windows 95


+	(see microsoft knowledge base article, Q187684) which


+	does Bad Things when FreeLibrary is called within


+	the DLL_PROCESS_DETACH code, in certain situations.


+	Since w95 just happens to be a platform which does not


+	provide TryEnterCriticalSection, the bug will be


+	effortlessly avoided.


+


+1999-11-10  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* sync.c (pthread_join): Make it a deferred cancelation point.


+


+	* misc.c (pthread_self): Explicitly initialise implicitly


+	created thread state to default values.


+


+1999-11-05  Tristan Savatier <tristan at mpegtv.com>


+


+	* pthread.h (winsock.h): Include unconditionally.


+	(ETIMEDOUT): Change fallback value to that defined by winsock.h.


+	


+	* general: Patched for portability to WinCE. The details are


+	described in the file WinCE-PORT. Follow the instructions


+	in README.WinCE to make the appropriate changes in config.h.


+


+1999-10-30  Erik Hensema <erik.hensema at group2000.nl>


+


+	* create.c (pthread_create): Explicitly initialise thread state to


+	default values.


+


+	* cancel.c (pthread_setcancelstate): Check for NULL 'oldstate'


+	for compatibility with Solaris pthreads;


+	(pthread_setcanceltype): ditto:


+


+1999-10-23  Erik Hensema <erik.hensema at group2000.nl>


+


+	* pthread.h (ctime_r): Fix incorrect argument "_tm"


+


+1999-10-21  Aurelio Medina <aureliom at crt.com>


+


+	* pthread.h (_POSIX_THREADS): Only define it if it isn't


+	already defined. Projects may need to define this on


+	the CC command line under Win32 as it doesn't have unistd.h


+


+1999-10-17  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* rwlock.c (pthread_rwlock_destroy): Add cast to remove compile


+	warning.


+


+	* condvar.c (pthread_cond_broadcast): Only release semaphores


+	if there are waiting threads.


+


+1999-10-15  Lorin Hochstein <lmh at xiphos.ca>, Peter Slacik <Peter.Slacik at tatramed.sk>


+


+	* condvar.c (cond_wait_cleanup): New static cleanup handler for


+	cond_timedwait;


+	(cond_timedwait): pthread_cleanup_push args changed;


+	canceling a thread while it's in pthread_cond_wait


+	will now decrement the waiters count and cleanup if it's the


+	last waiter.


+


+1999-10-15  Graham Dumpleton <Graham.Dumpleton at ra.pad.otc.telstra.com.au>


+


+	* condvar.c (cond_wait_cleanup): the last waiter will now reset the CV's


+	wasBroadcast flag


+


+Thu Sep 16 1999  Ross Johnson  <rpj at swan.canberra.edu.au>


+


+	* rwlock.c (pthread_rwlock_destroy): Add serialisation.


+	(_rwlock_check_need_init): Check for detroyed rwlock.


+	* rwlock.c: Check return codes from _rwlock_check_need_init();


+	modify comments; serialise access to rwlock objects during


+	operations; rename rw_mutex to rw_lock.


+	* implement.h: Rename rw_mutex to rw_lock.


+	* mutex.c (pthread_mutex_destroy): Add serialisation.


+	(_mutex_check_need_init): Check for detroyed mutex.


+	* condvar.c (pthread_cond_destroy): Add serialisation.


+	(_cond_check_need_init): Check for detroyed condvar.


+	* mutex.c: Modify comments.


+	* condvar.c: Modify comments.


+


+1999-08-10  Aurelio Medina  <aureliom at crt.com>


+


+	* implement.h (pthread_rwlock_t_): Add.


+	* pthread.h (pthread_rwlock_t): Add.


+	(PTHREAD_RWLOCK_INITIALIZER): Add.


+	Add rwlock function prototypes.


+	* rwlock.c: New module.


+	* pthread.def: Add new rwlock functions.


+	* private.c (ptw32_processInitialize): initialise


+	ptw32_rwlock_test_init_lock critical section.


+	* global.c (ptw32_rwlock_test_init_lock): Add.


+


+	* mutex.c (pthread_mutex_destroy): Don't free mutex memory


+	if mutex is PTHREAD_MUTEX_INITIALIZER and has not been


+	initialised yet.


+


+1999-08-08 Milan Gardian <mg at tatramed.sk>


+


+	* mutex.c (pthread_mutex_destroy): Free mutex memory.


+


+1999-08-22  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* exit.c (pthread_exit): Fix reference to potentially


+	uninitialised pointer.


+


+1999-08-21  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* private.c (ptw32_threadStart): Apply fix of 1999-08-19


+	this time to C++ and non-trapped C versions. Ommitted to


+	do this the first time through.


+


+1999-08-19  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* private.c (ptw32_threadStart): Return exit status from


+	the application thread startup routine.


+	- Milan Gardian <mg at tatramed.sk>


+


+1999-08-18  John Bossom <john.Bossom at cognos.com>


+


+	* exit.c (pthread_exit): Put status into pthread_t->exitStatus


+	* private.c (ptw32_threadStart): Set pthread->exitStatus


+	on exit of try{} block.


+	* sync.c (pthread_join): use pthread_exitStatus value if the


+	thread exit doesn't return a value (for Mingw32 CRTDLL


+	which uses endthread instead of _endthreadex).


+


+Tue Aug 17 20:17:58 CDT 1999  Mumit Khan  <khan at xraylith.wisc.edu>


+


+        * create.c (pthread_create): Add CRTDLL suppport.


+        * exit.c (pthread_exit): Likewise.


+        * private.c (ptw32_threadStart): Likewise.


+        (ptw32_threadDestroy): Likewise.


+        * sync.c (pthread_join): Likewise.


+        * tests/join1.c (main): Warn about partial support for CRTDLL.


+


+Tue Aug 17 20:00:08 1999  Mumit Khan  <khan at xraylith.wisc.edu>


+


+        * Makefile.in (LD): Delete entry point.


+        * acconfig.h (STDCALL): Delete unused macro.


+        * configure.in: Remove test for STDCALL.


+        * config.h.in: Regenerate.


+        * errno.c (_errno): Fix self type.


+        * pthread.h (PT_STDCALL): Move from here to


+        * implement.h (PT_STDCALL): here.


+        (ptw32_threadStart): Fix prototype.


+        * private.c (ptw32_threadStart): Likewise.


+


+1999-08-14  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* exit.c (pthread_exit): Don't call pthread_self() but


+	get thread handle directly from TSD for efficiency.


+	


+1999-08-12  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* private.c (ptw32_threadStart): ei[] only declared if _MSC_VER.


+


+	* exit.c (pthread_exit): Check for implicitly created threads


+	to avoid raising an unhandled exception.


+	


+1999-07-12  Peter Slacik <Peter.Slacik at tatramed.sk>


+


+	* condvar.c (pthread_cond_destroy): Add critical section.


+	(cond_timedwait): Add critical section; check for timeout


+	waiting on semaphore.


+	(pthread_cond_broadcast): Add critical section.


+


+1999-07-09  Lorin Hochstein <lmh at xiphos.ca>, John Bossom <John.Bossom at Cognos.COM>


+


+	The problem was that cleanup handlers were not executed when


+	pthread_exit() was called.


+


+	* implement.h (pthread_t_): Add exceptionInformation element for


+	C++ per-thread exception information.


+	(general): Define and rename exceptions.


+


+1999-07-09  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* misc.c (CancelableWait):  PTW32_EPS_CANCEL (SEH) and


+	ptw32_exception_cancel (C++) used to identify the exception.


+


+	* cancel.c (pthread_testcancel): PTW32_EPS_CANCEL (SEH) and


+	ptw32_exception_cancel (C++) used to identify the exception.


+


+	* exit.c (pthread_exit): throw/raise an exception to return to


+	ptw32_threadStart() to exit the thread. PTW32_EPS_EXIT (SEH)


+	and ptw32_exception_exit (C++) used to identify the exception.


+


+	* private.c (ptw32_threadStart): Add pthread_exit exception trap;


+	clean up and exit the thread directly rather than via pthread_exit().


+


+Sun May 30 00:25:02 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* semaphore.h (mode_t): Conditionally typedef it.


+


+Fri May 28 13:33:05 1999  Mark E. Armstrong <avail at pacbell.net>


+


+	* condvar.c (pthread_cond_broadcast): Fix possible memory fault


+	


+Thu May 27 13:08:46 1999  Peter Slacik <Peter.Slacik at tatramed.sk>


+


+	* condvar.c (pthread_cond_broadcast): Fix logic bug


+


+Thu May 27 13:08:46 1999  Bossom, John <John.Bossom at Cognos.COM>


+


+	* condvar.c (pthread_cond_broadcast): optimise sem_post loop


+


+Fri May 14 12:13:18 1999  Mike Russo <miker at eai.com>


+


+	* attr.c (pthread_attr_setdetachstate): Fix logic bug


+


+Sat May  8 09:42:30 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* pthread.def (sem_open): Add.


+	(sem_close): Add.


+	(sem_unlink): Add.


+	(sem_getvalue): Add.


+


+	* FAQ (Question 3): Add.


+


+Thu Apr  8 01:16:23 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* semaphore.c (sem_open): New function; returns an error (ENOSYS).


+	(sem_close): ditto.


+	(sem_unlink): ditto.


+	(sem_getvalue): ditto.


+


+	* semaphore.h (_POSIX_SEMAPHORES): define.


+	


+Wed Apr  7 14:09:52 1999  Ross Johnson  <rpj at swan.canberra.edu.au>


+


+	* errno.c (_REENTRANT || _MT): Invert condition.


+


+	* pthread.h (_errno): Conditionally include prototype.


+


+Wed Apr  7 09:37:00 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* *.c (comments): Remove individual attributions - these are


+	documented sufficiently elsewhere.


+


+	* implement.h (pthread.h): Remove extraneous include.


+


+Sun Apr  4 11:05:57 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* sched.c (sched.h): Include.


+


+	* sched.h: New file for POSIX 1b scheduling.


+


+	* pthread.h: Move opaque structures to implement.h; move sched_*


+	prototypes out and into sched.h.


+


+	* implement.h: Add opaque structures from pthread.h.


+


+	* sched.c (sched_yield): New function.


+


+	* condvar.c (ptw32_sem_*): Rename to sem_*; except for


+	ptw32_sem_timedwait which is an private function.


+


+Sat Apr  3 23:28:00 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* Makefile.in (OBJS): Add errno.o.


+


+Fri Apr  2 11:08:50 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* implement.h (ptw32_sem_*): Remove prototypes now defined in


+	semaphore.h.


+


+	* pthread.h (sempahore.h): Include.


+


+	* semaphore.h: New file for POSIX 1b semaphores.


+


+	* semaphore.c (ptw32_sem_timedwait): Moved to private.c.


+


+	* pthread.h (ptw32_sem_t): Change to sem_t. 


+


+	* private.c (ptw32_sem_timedwait): Moved from semaphore.c;


+	set errno on error.


+


+	* pthread.h (pthread_t_): Add per-thread errno element.


+


+Fri Apr  2 11:08:50 1999  John Bossom <jebossom at cognos.com>


+


+	* semaphore.c (ptw32_sem_*): Change to sem_*; these functions


+	will be exported from the library; set errno on error.


+


+	* errno.c (_errno): New file. New function.


+


+Fri Mar 26 14:11:45 1999  Tor Lillqvist <tml at iki.fi>


+


+	* semaphore.c (ptw32_sem_timedwait): Check for negative


+	milliseconds.


+


+Wed Mar 24 11:32:07 1999  John Bossom <jebossom at cognos.com>


+


+	* misc.c (CancelableWait): Initialise exceptionInformation[2].


+	(pthread_self): Get a real Win32 thread handle for implicit threads.


+


+	* cancel.c (pthread_testcancel): Initialise exceptionInformation[2].


+


+	* implement.h (SE_INFORMATION): Fix values.


+


+	* private.c (ptw32_threadDestroy): Close the thread handle.


+


+Fri Mar 19 12:57:27 1999  Ross Johnson  <rpj at swan.canberra.edu.au>


+


+	* cancel.c (comments): Update and cleanup.


+


+Fri Mar 19 09:12:59 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* private.c (ptw32_threadStart): status returns PTHREAD_CANCELED.


+


+	* pthread.h (PTHREAD_CANCELED): defined.


+


+Tue Mar 16  1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* all: Add GNU LGPL and Copyright and Warranty.


+	


+Mon Mar 15 00:20:13 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* condvar.c (pthread_cond_init): fix possible uninitialised use


+	of cv.


+


+Sun Mar 14 21:01:59 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* condvar.c (pthread_cond_destroy): don't do full cleanup if


+	static initialised cv has never been used.


+	(cond_timedwait): check result of auto-initialisation.


+


+Thu Mar 11 09:01:48 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* pthread.h (pthread_mutex_t): revert to (pthread_mutex_t *);


+	define a value to serve as PTHREAD_MUTEX_INITIALIZER.


+	(pthread_mutex_t_): remove staticinit and valid elements.


+	(pthread_cond_t): revert to (pthread_cond_t_ *);


+	define a value to serve as PTHREAD_COND_INITIALIZER.


+	(pthread_cond_t_): remove staticinit and valid elements.


+


+	* mutex.c (pthread_mutex_t args): adjust indirection of references.


+	(all functions): check for PTHREAD_MUTEX_INITIALIZER value;


+	check for NULL (invalid).


+


+	* condvar.c (pthread_cond_t args): adjust indirection of references.


+	(all functions): check for PTHREAD_COND_INITIALIZER value;


+	check for NULL (invalid).


+


+Wed Mar 10 17:18:12 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* misc.c (CancelableWait): Undo changes from Mar 8 and 7.


+


+Mon Mar  8 11:18:59 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* misc.c (CancelableWait): Ensure cancelEvent handle is the lowest


+	indexed element in the handles array. Enhance test for abandoned


+	objects.


+


+	* pthread.h (PTHREAD_MUTEX_INITIALIZER): Trailing elements not


+	initialised are set to zero by the compiler. This avoids the


+	problem of initialising the opaque critical section element in it.


+	(PTHREAD_COND_INITIALIZER): Ditto.


+


+	* semaphore.c (ptw32_sem_timedwait): Check sem == NULL earlier.


+


+Sun Mar  7 12:31:14 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* condvar.c (pthread_cond_init): set semaphore initial value


+	to 0, not 1. cond_timedwait was returning signaled immediately.


+


+	* misc.c (CancelableWait): Place the cancel event handle first


+	in the handle table for WaitForMultipleObjects. This ensures that


+	the cancel event is recognised and acted apon if both objects


+	happen to be signaled together.


+


+	* private.c (ptw32_cond_test_init_lock): Initialise and destroy.


+


+	* implement.h (ptw32_cond_test_init_lock): Add extern.


+


+	* global.c (ptw32_cond_test_init_lock): Add declaration. 


+


+	* condvar.c (pthread_cond_destroy): check for valid initialised CV;


+	flag destroyed CVs as invalid.


+	(pthread_cond_init): pthread_cond_t is no longer just a pointer.


+	This is because PTHREAD_COND_INITIALIZER needs state info to reside


+	in pthread_cond_t so that it can initialise on first use. Will work on


+	making pthread_cond_t (and other objects like it) opaque again, if


+	possible, later.


+	(cond_timedwait): add check for statically initialisation of


+	CV; initialise on first use.


+	(pthread_cond_signal): check for valid CV.


+	(pthread_cond_broadcast): check for valid CV.


+	(_cond_check_need_init): Add.


+


+	* pthread.h (PTHREAD_COND_INITIALIZER): Fix.


+	(pthread_cond_t): no longer a pointer to pthread_cond_t_.


+	(pthread_cond_t_): add 'staticinit' and 'valid' elements.


+


+Sat Mar 6 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* implement.h: Undate comments.


+


+Sun Feb 21 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* pthread.h (PTHREAD_MUTEX_INITIALIZER): missing braces around


+	cs element initialiser.


+


+1999-02-21  Ben Elliston  <bje at cygnus.com>


+


+	* pthread.h (pthread_exit): The return type of this function is


+	void, not int.


+


+	* exit.c (pthread_exit): Do not return 0.


+


+Sat Feb 20 16:03:30 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* dll.c (DLLMain): Expand TryEnterCriticalSection support test.


+


+	* mutex.c (pthread_mutex_trylock): The check for


+	ptw32_try_enter_critical_section == NULL should have been


+	removed long ago.


+


+Fri Feb 19 16:03:30 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* sync.c (pthread_join): Fix pthread_equal() test.


+


+	* mutex.c (pthread_mutex_trylock): Check mutex != NULL before


+	using it.


+


+Thu Feb 18 16:17:30 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* misc.c (pthread_equal): Fix inverted result.


+


+	* Makefile.in: Use libpthread32.a as the name of the DLL export


+	library instead of pthread.lib.


+


+	* condvar.c (pthread_cond_init): cv could have been used unitialised;


+	initialise.


+


+	* create.c (pthread_create): parms could have been used unitialised;


+	initialise.


+


+	* pthread.h (struct pthread_once_t_): Remove redefinition.


+


+Sat Feb 13 03:03:30 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* pthread.h (struct pthread_once_t_): Replaced.


+


+	* misc.c (pthread_once): Replace with John Bossom's version;


+	has lighter weight serialisation; fixes problem of not holding


+	competing threads until after the init_routine completes.


+


+Thu Feb 11 13:34:14 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* misc.c (CancelableWait): Change C++ exception throw.


+


+	* sync.c (pthread_join): Change FIXME comment - issue resolved.


+


+Wed Feb 10 12:49:11 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* configure: Various temporary changes.


+	- Kevin Ruland <Kevin.Ruland at anheuser-busch.com>


+


+	* README: Update.


+


+	* pthread.def (pthread_attr_getstackaddr): uncomment


+	(pthread_attr_setstackaddr): uncomment


+


+Fri Feb  5 13:42:30 1999  Ross Johnson  <rpj at swan.canberra.edu.au>


+


+	* semaphore.c: Comment format changes.


+


+Thu Feb  4 10:07:28 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* global.c: Remove ptw32_exception instantiation.


+


+	* cancel.c (pthread_testcancel): Change C++ exception throw.


+


+	* implement.h: Remove extern declaration.


+


+Wed Feb  3 13:04:44 1999  Ross Johnson  <rpj at swan.canberra.edu.au>


+


+	* cleanup.c: Rename ptw32_*_cleanup() to pthread_*_cleanup().


+


+	* pthread.def: Ditto.


+	


+	* pthread.h: Ditto.


+


+	* pthread.def (pthread_cleanup_push): Remove from export list;


+	the function is defined as a macro under all compilers.


+	(pthread_cleanup_pop): Ditto.


+


+	* pthread.h: Remove #if defined().


+


+Wed Feb  3 10:13:48 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* sync.c (pthread_join): Check for NULL value_ptr arg;


+	check for detached threads.


+


+Tue Feb  2 18:07:43 1999  Ross Johnson  <rpj at swan.canberra.edu.au>


+


+	* implement.h: Add #include <pthread.h>.


+	Change sem_t to ptw32_sem_t.


+


+Tue Feb  2 18:07:43 1999  Kevin Ruland <Kevin.Ruland at anheuser-busch.com>


+


+	* signal.c (pthread_sigmask): Add and modify casts.


+	Reverse LHS/RHS bitwise assignments.


+


+	* pthread.h: Remove #include <semaphore.h>.


+	(PTW32_ATTR_VALID): Add cast.


+	(struct pthread_t_): Add sigmask element.


+


+	* dll.c: Add "extern C" for DLLMain.


+	(DllMain): Add cast.


+


+	* create.c (pthread_create): Set sigmask in thread.


+


+	* condvar.c: Remove #include. Change sem_* to ptw32_sem_*.


+


+	* attr.c: Changed #include.


+


+	* Makefile.in: Additional targets and changes to build the library


+	as a DLL.


+


+Fri Jan 29 11:56:28 1999  Ross Johnson  <rpj at swan.canberra.edu.au>


+


+	* Makefile.in (OBJS): Add semaphore.o to list.


+


+	* semaphore.c (ptw32_sem_timedwait): Move from private.c.


+	Rename sem_* to ptw32_sem_*.


+


+	* pthread.h (pthread_cond_t): Change type of sem_t.


+	_POSIX_SEMAPHORES no longer defined.


+


+	* semaphore.h: Contents moved to implement.h.


+	Removed from source tree.


+


+	* implement.h: Add semaphore function prototypes and rename all


+	functions to prepend 'ptw32_'. They are


+	now private to the pthreads-win32 implementation.


+


+	* private.c: Change #warning.


+	Move ptw32_sem_timedwait() to semaphore.c.


+


+	* cleanup.c: Change #warning.


+


+	* misc.c: Remove #include <errno.h>


+


+	* pthread.def: Cleanup CVS merge conflicts.


+


+	* global.c: Ditto.


+


+	* ChangeLog: Ditto.


+


+	* cleanup.c: Ditto.


+


+Sun Jan 24 01:34:52 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* semaphore.c (sem_wait): Remove second arg to 


+	pthreadCancelableWait() call.


+


+Sat Jan 23 17:36:40 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* pthread.def: Add new functions to export list.


+


+	* pthread.h (PTHREAD_MUTEX_AUTO_CS_NP): New.


+	(PTHREAD_MUTEX_FORCE_CS_NP): New.


+


+	* README: Updated.


+


+Fri Jan 22 14:31:59 1999  Ross Johnson  <rpj at swan.canberra.edu.au>


+


+	* Makefile.in (CFLAGS): Remove -fhandle-exceptions. Not needed


+	with egcs. Add -g for debugging.


+


+	* create.c (pthread_create): Replace __stdcall with PT_STDCALL


+	macro. This is a hack and must be fixed.


+


+	* misc.c (CancelableWait): Remove redundant statement.


+


+	* mutex.c (pthread_mutexattr_init): Cast calloc return value.


+


+	* misc.c (CancelableWait): Add cast.


+	(pthread_self): Add cast.


+


+	* exit.c (pthread_exit): Add cast.


+


+	* condvar.c (pthread_condattr_init): Cast calloc return value.


+


+	* cleanup.c: Reorganise conditional compilation.


+


+	* attr.c (pthread_attr_init): Remove unused 'result'.


+	Cast malloc return value.


+


+	* private.c (ptw32_callUserDestroyRoutines): Redo conditional


+	compilation.


+


+	* misc.c (CancelableWait): C++ version uses 'throw'.


+


+	* cancel.c (pthread_testcancel): Ditto.


+


+	* implement.h (class ptw32_exception): Define for C++.


+


+	* pthread.h: Fix C, C++, and Win32 SEH condition compilation


+	mayhem around pthread_cleanup_* defines. C++ version now uses John


+	Bossom's cleanup handlers.


+	(pthread_attr_t): Make 'valid' unsigned.


+	Define '_timeb' as 'timeb' for Ming32.


+	Define PT_STDCALL as nothing for Mingw32. May be temporary.


+


+	* cancel.c (pthread_testcancel): Cast return value.


+


+Wed Jan 20 09:31:28 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* pthread.h (pthread_mutexattr_t): Changed to a pointer.


+


+	* mutex.c (pthread_mutex_init): Conditionally create Win32 mutex


+	- from John Bossom's implementation.


+	(pthread_mutex_destroy): Conditionally close Win32 mutex


+	- from John Bossom's implementation.


+	(pthread_mutexattr_init): Replaced by John Bossom's version.


+	(pthread_mutexattr_destroy): Ditto.


+	(pthread_mutexattr_getpshared): New function from John Bossom's


+	implementation.


+	(pthread_mutexattr_setpshared): New function from John Bossom's


+	implementation.


+


+Tue Jan 19 18:27:42 1999  Ross Johnson  <rpj at swan.canberra.edu.au>


+


+	* pthread.h (pthreadCancelableTimedWait): New prototype.


+	(pthreadCancelableWait): Remove second argument.


+


+	* misc.c (CancelableWait): New static function is 


+	pthreadCancelableWait() renamed.


+	(pthreadCancelableWait): Now just calls CancelableWait() with


+	INFINITE timeout.


+	(pthreadCancelableTimedWait): Just calls CancelableWait()


+	with passed in timeout.


+


+Tue Jan 19 18:27:42 1999  Scott Lightner <scott at curriculum.com>


+


+	* private.c (ptw32_sem_timedwait): 'abstime' arg really is


+	absolute time. Calculate relative time to wait from current


+	time before passing timeout to new routine 


+	pthreadCancelableTimedWait().


+


+Tue Jan 19 10:27:39 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* pthread.h (pthread_mutexattr_setforcecs_np): New prototype.


+	


+	* mutex.c (pthread_mutexattr_init): Init 'pshared' and 'forcecs'


+	attributes to 0.


+	(pthread_mutexattr_setforcecs_np): New function (not portable).


+


+	* pthread.h (pthread_mutex_t): 


+	Add 'mutex' element. Set to NULL in PTHREAD_MUTEX_INITIALIZER.


+	The pthread_mutex_*() routines will try to optimise performance


+	by choosing either mutexes or critical sections as the basis


+	for pthread mutexes for each indevidual mutex.


+	(pthread_mutexattr_t_): Add 'forcecs' element.


+	Some applications may choose to force use of critical sections


+	if they know that:-


+	     the mutex is PROCESS_PRIVATE and, 


+	         either the OS supports TryEnterCriticalSection() or


+	         pthread_mutex_trylock() will never be called on the mutex.


+	This attribute will be setable via a non-portable routine.


+


+	Note: We don't yet support PROCESS_SHARED mutexes, so the


+	implementation as it stands will default to Win32 mutexes only if


+	the OS doesn't support TryEnterCriticalSection. On Win9x, and early


+	versions of NT 'forcecs' will need to be set in order to get


+	critical section based mutexes.


+


+Sun Jan 17 12:01:26 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* pthread.h (PTHREAD_MUTEX_INITIALIZER): Init new 'staticinit'


+	value to '1' and existing 'valid' value to '1'.


+


+	* global.c (ptw32_mutex_test_init_lock): Add.


+


+	* implement.h (ptw32_mutex_test_init_lock.): Add extern.


+


+	* private.c (ptw32_processInitialize): Init critical section for


+	global lock used by _mutex_check_need_init().


+	(ptw32_processTerminate): Ditto (:s/Init/Destroy/).


+


+	* dll.c (dllMain): Move call to FreeLibrary() so that it is only


+	called once when the process detaches.


+


+	* mutex.c (_mutex_check_need_init): New static function to test


+	and init PTHREAD_MUTEX_INITIALIZER mutexes. Provides serialised


+	access to the internal state of the uninitialised static mutex. 


+	Called from pthread_mutex_trylock() and pthread_mutex_lock() which


+	do a quick unguarded test to check if _mutex_check_need_init()


+	needs to be called. This is safe as the test is conservative


+ 	and is repeated inside the guarded section of 


+	_mutex_check_need_init(). Thus in all calls except the first


+	calls to lock static mutexes, the additional overhead to lock any


+	mutex is a single memory fetch and test for zero.


+


+	* pthread.h (pthread_mutex_t_): Add 'staticinit' member. Mutexes


+	initialised by PTHREAD_MUTEX_INITIALIZER aren't really initialised


+	until the first attempt to lock it. Using the 'valid'


+	flag (which flags the mutex as destroyed or not) to record this


+	information would be messy. It is possible for a statically


+	initialised mutex such as this to be destroyed before ever being


+	used.


+


+	* mutex.c (pthread_mutex_trylock): Call _mutex_check_need_init()


+	to test/init PTHREAD_MUTEX_INITIALIZER mutexes.


+	(pthread_mutex_lock): Ditto.


+	(pthread_mutex_unlock): Add check to ensure we don't try to unlock


+	an unitialised static mutex.


+	(pthread_mutex_destroy): Add check to ensure we don't try to delete


+	a critical section that we never created. Allows us to destroy


+	a static mutex that has never been locked (and hence initialised).


+	(pthread_mutex_init): Set 'staticinit' flag to 0 for the new mutex.


+


+Sun Jan 17 12:01:26 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* private.c (ptw32_sem_timedwait): Move from semaphore.c.


+


+	* semaphore.c : Remove redundant #includes.


+	(ptw32_sem_timedwait): Move to private.c.


+	(sem_wait): Add missing abstime arg to pthreadCancelableWait() call.


+


+Fri Jan 15 23:38:05 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* condvar.c (cond_timedwait): Remove comment.


+


+Fri Jan 15 15:41:28 1999  Ross Johnson  <rpj at swan.canberra.edu.au>


+


+	* pthread.h: Add new 'abstime' arg to pthreadCancelableWait()


+	prototype.


+


+	* condvar.c (cond_timedwait): New generalised function called by


+	both pthread_cond_wait() and pthread_cond_timedwait(). This is


+	essentially pthread_cond_wait() renamed and modified to add the


+	'abstime' arg and call the new ptw32_sem_timedwait() instead of


+	sem_wait().


+	(pthread_cond_wait): Now just calls the internal static


+	function cond_timedwait() with an INFINITE wait.


+	(pthread_cond_timedwait): Now implemented. Calls the internal


+	static function cond_timedwait().


+


+	* implement.h (ptw32_sem_timedwait): New internal function


+	prototype.


+


+	* misc.c (pthreadCancelableWait): Added new 'abstime' argument


+	to allow shorter than INFINITE wait.


+


+	* semaphore.c (ptw32_sem_timedwait): New function for internal


+	use.  This is essentially sem_wait() modified to add the


+        'abstime' arg and call the modified (see above)


+        pthreadCancelableWait().


+


+Thu Jan 14 14:27:13 1999  Ross Johnson  <rpj at swan.canberra.edu.au>


+


+	* cleanup.c: Correct _cplusplus to __cplusplus wherever used.


+


+	* Makefile.in: Add CC=g++ and add -fhandle-exceptions to CFLAGS.


+	The derived Makefile will compile all units of the package as C++


+	so that those which include try/catch exception handling should work


+	properly. The package should compile ok if CC=gcc, however, exception


+	handling will not be included and thus thread cancellation, for


+ 	example, will not work.


+


+	* cleanup.c (ptw32_pop_cleanup): Add #warning to compile this


+ 	file as C++ if using a cygwin32 environment. Perhaps the whole package


+	should be compiled using g++ under cygwin.


+


+	* private.c (ptw32_threadStart): Change #error directive


+	into #warning and bracket for __CYGWIN__ and derivative compilers.


+


+Wed Jan 13 09:34:52 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* build.bat: Delete old binaries before compiling/linking.


+


+Tue Jan 12 09:58:38 1999  Tor Lillqvist <tml at iki.fi>


+


+	* dll.c: The Microsoft compiler pragmas probably are more


+	appropriately protected by _MSC_VER than by _WIN32.


+


+	* pthread.h: Define ETIMEDOUT. This should be returned by


+	pthread_cond_timedwait which is not implemented yet as of


+	snapshot-1999-01-04-1305. It was implemented in the older version.


+	The Microsoft compiler pragmas probably are more appropriately


+	protected by _MSC_VER than by _WIN32.


+


+	* pthread.def: pthread_mutex_destroy was missing from the def file


+


+	* condvar.c (pthread_cond_broadcast): Ensure we only wait on threads


+	if there were any waiting on the condition.


+	I think pthread_cond_broadcast should do the WaitForSingleObject


+	only if cv->waiters > 0? Otherwise it seems to hang, at least in the


+	testg thread program from glib.


+


+Tue Jan 12 09:58:38 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* condvar.c (pthread_cond_timedwait): Fix function description


+	comments.


+


+	* semaphore.c (sem_post): Correct typo in comment.


+


+Mon Jan 11 20:33:19 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* pthread.h: Re-arrange conditional compile of pthread_cleanup-*


+	macros.


+


+	* cleanup.c (ptw32_push_cleanup): Provide conditional 


+	compile of cleanup->prev.


+


+1999-01-11  Tor Lillqvist <tml at iki.fi>


+


+	* condvar.c (pthread_cond_init): Invert logic when testing the


+	return value from calloc().


+


+Sat Jan  9 14:32:08 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* implement.h: Compile-time switch for CYGWIN derived environments


+	to use CreateThread instead of _beginthreadex. Ditto for ExitThread.


+	Patch provided by Anders Norlander  <anorland at hem2.passagen.se>.


+


+Tue Jan  5 16:33:04 1999  Ross Johnson  <rpj at swan.canberra.edu.au>


+


+	* cleanup.c (ptw32_pop_cleanup): Add C++ version of __try/__except


+	block. Move trailing "}" out of #ifdef _WIN32 block left there by


+	(rpj's) mistake.


+


+	* private.c: Remove #include <errno.h> which is included by pthread.h.


+


+1998-12-11  Ben Elliston  <bje at toilet.to.cygnus.com>


+


+	* README: Update info about subscribing to the mailing list.


+


+Mon Jan  4 11:23:40 1999  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* all: No code changes, just cleanup.


+	- remove #if 0 /* Pre Bossom */ enclosed code.


+	- Remove some redundant #includes.


+	* pthread.h: Update implemented/unimplemented routines list.


+	* Tag the bossom merge branch getting ready to merge back to main


+	trunk.


+


+Tue Dec 29 13:11:16 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* implement.h: Move the following struct definitions to pthread.h:


+	pthread_t_, pthread_attr_t_, pthread_mutex_t_, pthread_mutex_t_,


+	pthread_mutexattr_t_, pthread_key_t_, pthread_cond_t_,


+	pthread_condattr_t_, pthread_once_t_.


+


+	* pthread.h: Add "_" prefix to pthread_push_cleanup and 


+	pthread_pop_cleanup internal routines, and associated struct and


+	typedefs.


+


+	* buildlib.bat: Add compile command for semaphore.c


+


+	* pthread.def: Comment out pthread_atfork routine name. 


+	Now unimplemented.


+


+	* tsd.c (pthread_setspecific): Rename tkAssocCreate to


+	ptw32_tkAssocCreate.


+	(pthread_key_delete): Rename tkAssocDestroy to


+	ptw32_tkAssocDestroy.


+


+	* sync.c (pthread_join): Rename threadDestroy to ptw32_threadDestroy


+


+	* sched.c (is_attr): attr is now **attr (was *attr), so add extra


+	NULL pointer test.


+	(pthread_attr_setschedparam): Increase redirection for attr which is


+	now a **.


+	(pthread_attr_getschedparam): Ditto.


+	(pthread_setschedparam): Change thread validation and rename "thread"


+ 	Win32 thread Handle element name to match John Bossom's version.


+	(pthread_getschedparam): Ditto.


+


+	* private.c (ptw32_threadDestroy): Rename call to


+	callUserDestroyRoutines() as ptw32_callUserDestroyRoutines()


+


+	* misc.c: Add #include "implement.h".


+


+	* dll.c: Remove defined(KLUDGE) wrapped code.


+


+	* fork.c: Remove redefinition of ENOMEM.


+	Remove pthread_atfork() and fork() with #if 0/#endif.


+


+	* create.c (pthread_create): Rename threadStart and threadDestroy calls


+	to ptw32_threadStart and ptw32_threadDestroy.


+


+	* implement.h: Rename "detachedstate" to "detachstate".


+


+	* attr.c: Rename "detachedstate" to "detachstate".


+


+Mon Dec 28 09:54:39 1998  John Bossom


+


+	* semaphore.c: Initial version.


+	* semaphore.h: Initial version.


+


+Mon Dec 28 09:54:39 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* pthread.h (pthread_attr_t_): Change to *pthread_attr_t.


+


+Mon Dec 28 09:54:39 1998  John Bossom, Ben Elliston


+


+	* attr.c (pthread_attr_setstacksize): Merge with John's version.


+	(pthread_attr_getstacksize): Merge with John's version.


+	(pthread_attr_setstackaddr): Merge with John's version.


+	(pthread_attr_getstackaddr): Merge with John's version.


+	(pthread_attr_init): Merge with John's version.


+	(pthread_attr_destroy): Merge with John's version.


+	(pthread_attr_getdetachstate): Merge with John's version.


+	(pthread_attr_setdetachstate): Merge with John's version.


+	(is_attr): attr is now **attr (was *attr), so add extra NULL pointer


+	test.


+


+Mon Dec 28 09:54:39 1998  Ross Johnson


+


+	* implement.h (pthread_attr_t_): Add and rename elements in JEB's


+	version to correspond to original, so that it can be used with


+	original attr routines.


+


+	* pthread.h: Add #endif at end which was truncated in merging.


+


+Sun Dec 20 14:51:58 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* misc.c (pthreadCancelableWait): New function by John Bossom. Non-standard


+	but provides a hook that can be used to implement cancellation points in


+	applications that use this library.


+


+	* pthread.h (pthread_cleanup_pop): C++ (non-WIN32) version uses


+	try/catch to emulate John Bossom's WIN32 __try/__finally behaviour.


+	In the WIN32 version __finally block, add a test for AbnormalTermination otherwise


+	cleanup is only run if the cleanup_pop execute arg is non-zero. Cancellation


+	should cause the cleanup to run irrespective of the execute arg.


+


+	* condvar.c (pthread_condattr_init): Replaced by John Bossom's version.


+	(pthread_condattr_destroy): Replaced by John Bossom's version.


+	(pthread_condattr_getpshared): Replaced by John Bossom's version.


+	(pthread_condattr_setpshared): Replaced by John Bossom's version.


+	(pthread_cond_init): Replaced by John Bossom's version.


+	Fix comment (refered to mutex rather than condition variable).


+	(pthread_cond_destroy): Replaced by John Bossom's version.


+	(pthread_cond_wait): Replaced by John Bossom's version.


+	(pthread_cond_timedwait): Replaced by John Bossom's version.


+	(pthread_cond_signal): Replaced by John Bossom's version.


+	(pthread_cond_broadcast): Replaced by John Bossom's version.


+


+Thu Dec 17 19:10:46 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* tsd.c (pthread_key_create): Replaced by John Bossom's version.


+	(pthread_key_delete): Replaced by John Bossom's version.


+	(pthread_setspecific): Replaced by John Bossom's version.


+	(pthread_getspecific): Replaced by John Bossom's version.


+


+Mon Dec  7 09:44:40 1998  John Bossom


+


+	* cancel.c (pthread_setcancelstate): Replaced.


+	(pthread_setcanceltype): Replaced.


+	(pthread_testcancel): Replaced.


+	(pthread_cancel): Replaced.


+	


+	* exit.c (pthread_exit): Replaced.


+


+	* misc.c (pthread_self): Replaced.


+	(pthread_equal): Replaced.


+


+	* sync.c (pthread_detach): Replaced.


+	(pthread_join): Replaced.


+


+	* create.c (pthread_create): Replaced.


+


+	* private.c (ptw32_processInitialize): New.


+	(ptw32_processTerminate): New.


+	(ptw32_threadStart): New.


+ 	(ptw32_threadDestroy): New.


+	(ptw32_cleanupStack): New.


+	(ptw32_tkAssocCreate): New.


+	(ptw32_tkAssocDestroy): New.


+	(ptw32_callUserDestroyRoutines): New.


+


+	* implement.h: Added non-API structures and declarations.


+


+	* dll.c (PthreadsEntryPoint): Cast return value of GetProcAddress


+	to resolve compile warning from MSVC.


+


+	* dll.c (DLLmain): Replaced.


+	* dll.c (PthreadsEntryPoint):


+	Re-applied Anders Norlander's patch:-


+	Initialize ptw32_try_enter_critical_section at startup


+	and release kernel32 handle when DLL is being unloaded.


+


+Sun Dec  6 21:54:35 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* buildlib.bat: Fix args to CL when building the .DLL


+


+	* cleanup.c (ptw32_destructor_run_all): Fix TSD key management.


+	This is a tidy-up before TSD and Thread management is completely


+	replaced by John Bossom's code.


+


+	* tsd.c (pthread_key_create): Fix TSD key management.


+


+	* global.c (ptw32_key_virgin_next): Initialise.


+


+	* build.bat: New DOS script to compile and link a pthreads app


+	using Microsoft's CL compiler linker.


+	* buildlib.bat: New DOS script to compile all the object files


+	and create pthread.lib and pthread.dll using Microsoft's CL


+	compiler linker.


+


+1998-12-05  Anders Norlander  <anorland at hem2.passagen.se>


+


+	* implement.h (ptw32_try_enter_critical_section): New extern


+	* dll.c (ptw32_try_enter_critical_section): New pointer to


+	TryEnterCriticalSection if it exists; otherwise NULL.


+	* dll.c (PthreadsEntryPoint):


+	Initialize ptw32_try_enter_critical_section at startup


+	and release kernel32 handle when DLL is being unloaded.


+	* mutex.c (pthread_mutex_trylock): Replaced check for NT with


+	a check if ptw32_try_enter_critical_section is valid


+	pointer to a function. Call ptw32_try_enter_critical_section


+	instead of TryEnterCriticalSection to avoid errors on Win95.


+


+Thu Dec 3 13:32:00 1998  Ross Johnson  <rpj at ise.canberra.edu.au>


+


+	* README: Correct cygwin32 compatibility statement.


+


+Sun Nov 15 21:24:06 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* cleanup.c (ptw32_destructor_run_all): Declare missing void * arg.


+	Fixup CVS merge conflicts.


+


+1998-10-30  Ben Elliston  <bje at cygnus.com>


+


+	* condvar.c (cond_wait): Fix semantic error. Test for equality


+	instead of making an assignment.


+


+Fri Oct 30 15:15:50 1998  Ross Johnson  <rpj at swan.canberra.edu.au>


+


+	* cleanup.c (ptw32_handler_push): Fixed bug appending new


+	handler to list reported by Peter Slacik


+	<Peter.Slacik at leibinger.freinet.de>.


+	(new_thread): Rename poorly named local variable to


+	"new_handler".


+


+Sat Oct 24 18:34:59 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* global.c: Add TSD key management array and index declarations.


+


+	* implement.h: Ditto for externs.


+


+Fri Oct 23 00:08:09 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* implement.h (PTW32_TSD_KEY_REUSE): Add enum.


+


+	* private.c (ptw32_delete_thread): Add call to


+	ptw32_destructor_run_all() to clean up the threads keys.


+


+	* cleanup.c (ptw32_destructor_run_all): Check for no more dirty


+	keys to run destructors on. Assume that the destructor call always


+	succeeds and set the key value to NULL.


+


+Thu Oct 22 21:44:44 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* tsd.c (pthread_setspecific): Add key management code.


+	(pthread_key_create): Ditto.


+	(pthread_key_delete): Ditto.


+


+	* implement.h (struct ptw32_tsd_key): Add status member.


+


+	* tsd.c: Add description of pthread_key_delete() from the


+	standard as a comment.


+


+Fri Oct 16 17:38:47 1998  Ross Johnson  <rpj at swan.canberra.edu.au>


+


+	* cleanup.c (ptw32_destructor_run_all): Fix and improve


+	stepping through the key table.


+


+Thu Oct 15 14:05:01 1998  Ross Johnson  <rpj at swan.canberra.edu.au>


+


+	* private.c (ptw32_new_thread): Remove init of destructorstack.


+	No longer an element of pthread_t.


+


+	* tsd.c (pthread_setspecific): Fix type declaration and cast.


+	(pthread_getspecific): Ditto.


+	(pthread_getspecific): Change error return value to NULL if key


+	is not in use.


+


+Thu Oct 15 11:53:21 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* global.c (ptw32_tsd_key_table): Fix declaration.


+


+	* implement.h(ptw32_TSD_keys_TlsIndex): Add missing extern.


+	(ptw32_tsd_mutex): Ditto.


+


+	* create.c (ptw32_start_call): Fix "keys" array declaration.


+	Add comment.


+


+	* tsd.c (pthread_setspecific): Fix type declaration and cast.


+	(pthread_getspecific): Ditto.


+


+	* cleanup.c (ptw32_destructor_run_all): Declare missing loop


+	counter.


+


+Wed Oct 14 21:09:24 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* private.c (ptw32_new_thread): Increment ptw32_threads_count.


+	(ptw32_delete_thread): Decrement ptw32_threads_count.


+	Remove some comments.


+


+	* exit.c (ptw32_exit): : Fix two pthread_mutex_lock() calls that


+ 	should have been pthread_mutex_unlock() calls.


+	(ptw32_vacuum): Remove call to ptw32_destructor_pop_all().


+


+	* create.c (pthread_create): Fix two pthread_mutex_lock() calls that


+ 	should have been pthread_mutex_unlock() calls.


+


+	* global.c (ptw32_tsd_mutex): Add mutex for TSD operations.


+


+	* tsd.c (pthread_key_create): Add critical section.


+	(pthread_setspecific): Ditto.


+	(pthread_getspecific): Ditto.


+	(pthread_key_delete): Ditto.


+


+	* sync.c (pthread_join): Fix two pthread_mutex_lock() calls that


+ 	should have been pthread_mutex_unlock() calls.


+


+Mon Oct 12 00:00:44 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* implement.h (ptw32_tsd_key_table): New.


+


+	* create.c (ptw32_start_call): Initialise per-thread TSD keys


+	to NULL.


+


+	* misc.c (pthread_once): Correct typo in comment.


+


+	* implement.h (ptw32_destructor_push): Remove.


+	(ptw32_destructor_pop): Remove.


+	(ptw32_destructor_run_all): Rename from ptw32_destructor_pop_all.


+	(PTW32_TSD_KEY_DELETED): Add enum.


+	(PTW32_TSD_KEY_INUSE): Add enum.


+


+	* cleanup.c (ptw32_destructor_push): Remove.


+	(ptw32_destructor_pop): Remove.


+	(ptw32_destructor_run_all): Totally revamped TSD.


+


+	* dll.c (ptw32_TSD_keys_TlsIndex): Initialise.


+


+	* tsd.c (pthread_setspecific): Totally revamped TSD.


+	(pthread_getspecific): Ditto.


+	(pthread_create): Ditto.


+	(pthread_delete): Ditto.


+


+Sun Oct 11 22:44:55 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* global.c (ptw32_tsd_key_table): Add new global.


+


+	* implement.h (ptw32_tsd_key_t and struct ptw32_tsd_key):


+	Add.


+	(struct _pthread): Remove destructorstack.


+


+	* cleanup.c (ptw32_destructor_run_all): Rename from


+ 	ptw32_destructor_pop_all. The key destructor stack was made


+ 	global rather than per-thread. No longer removes destructor nodes


+	from the stack. Comments updated.


+


+1998-10-06  Ben Elliston  <bje at cygnus.com>


+


+	* condvar.c (cond_wait): Use POSIX, not Win32 mutex calls.


+	(pthread_cond_broadcast): Likewise.


+	(pthread_cond_signal): Likewise.


+


+1998-10-05  Ben Elliston  <bje at cygnus.com>


+


+	* pthread.def: Update. Some functions aren't available yet, others


+	are macros in <pthread.h>.


+


+	* tests/join.c: Remove; useless.


+


+Mon Oct  5 14:25:08 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* pthread.def: New file for building the DLL.


+


+1998-10-05  Ben Elliston  <bje at cygnus.com>


+


+	* misc.c (pthread_equal): Correct inverted logic bug.


+	(pthread_once): Use the POSIX mutex primitives, not Win32. Remove


+	irrelevant FIXME comment.


+


+	* global.c (PTHREAD_MUTEX_INITIALIZER): Move to pthread.h.


+


+	* pthread.h (PTHREAD_MUTEX_INITIALIZER): Define.


+	(pthread_mutex_t): Reimplement as a struct containing a valid


+	flag. If the flag is ever down upon entry to a mutex operation,


+	we call pthread_mutex_create() to initialise the object. This


+	fixes the problem of how to handle statically initialised objects


+	that can't call InitializeCriticalSection() due to their context.


+	(PTHREAD_ONCE_INIT): Define.


+


+	* mutex.c (pthread_mutex_init): Set valid flag.


+	(pthread_mutex_destroy): Clear valid flag.


+	(pthread_mutex_lock): Check and handle the valid flag.


+	(pthread_mutex_unlock): Likewise.


+	(pthread_mutex_trylock): Likewise.


+


+	* tests/mutex3.c: New file; test for the static initialisation


+	macro. Passes.


+


+	* tests/create1.c: New file; test pthread_create(). Passes.


+	


+	* tests/equal.c: Poor test; remove.


+	


+	* tests/equal1.c New file; test pthread_equal(). Passes.


+


+	* tests/once1.c: New file; test for pthread_once(). Passes.


+


+	* tests/self.c: Remove; rename to self1.c.


+


+	* tests/self1.c: This is the old self.c.


+


+	* tests/self2.c: New file. Test pthread_self() with a single


+	thread. Passes.


+


+	* tests/self3.c: New file. Test pthread_self() with a couple of


+	threads to ensure their thread IDs differ. Passes.


+	


+1998-10-04  Ben Elliston  <bje at cygnus.com>


+


+	* tests/mutex2.c: Test pthread_mutex_trylock(). Passes.


+


+	* tests/mutex1.c: New basic test for mutex functions (it passes).


+	(main): Eliminate warning.


+


+	* configure.in: Test for __stdcall, not _stdcall. Typo.


+


+	* configure: Regenerate.


+


+	* attr.c (pthread_attr_setstackaddr): Remove FIXME comment. Win32


+	does know about ENOSYS after all.


+	(pthread_attr_setstackaddr): Likewise.


+


+1998-10-03  Ben Elliston  <bje at cygnus.com>


+


+	* configure.in: Test for the `_stdcall' keyword.  Define `STDCALL'


+	to `_stdcall' if we have it, null otherwise.


+


+	* configure: Regenerate.


+


+	* acconfig.h (STDCALL): New define.


+


+	* config.h.in: Regenerate.


+


+	* create.c (ptw32_start_call): Add STDCALL prefix.


+	


+	* mutex.c (pthread_mutex_init): Correct function signature.


+


+	* attr.c (pthread_attr_init): Only zero out the `sigmask' member


+	if we have the sigset_t type.


+


+	* pthread.h: No need to include <unistd.h>.  It doesn't even exist


+	on Win32! Again, an artifact of cross-compilation.	


+	(pthread_sigmask): Only provide if we have the sigset_t type.


+


+	* process.h: Remove. This was a stand-in before we started doing


+	native compilation under Win32.


+


+	* pthread.h (pthread_mutex_init): Make `attr' argument const.


+


+1998-10-02  Ben Elliston  <bje at cygnus.com>


+


+	* COPYING: Remove.


+


+	* COPYING.LIB: Add. This library is under the LGPL.


+


+1998-09-13  Ben Elliston  <bje at cygnus.com>


+


+	* configure.in: Test for required system features.


+


+	* configure: Generate. 


+


+	* acconfig.h: New file.


+


+	* config.h.in: Generate.


+


+	* Makefile.in: Renamed from Makefile.


+


+	* COPYING: Import from a recent GNU package.


+


+	* config.guess: Likewise.


+


+	* config.sub: Likewise.


+


+	* install-sh: Likewise.


+


+	* config.h: Remove.  


+


+	* Makefile: Likewise.


+


+1998-09-12  Ben Elliston  <bje at cygnus.com>


+


+	* windows.h: No longer needed; remove.


+


+	* windows.c: Likewise.


+


+Sat Sep 12 20:09:24 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* windows.h: Remove error number definitions. These are in <errno.h>


+	


+	* tsd.c: Add comment explaining rationale for not building


+	POSIX TSD on top of Win32 TLS.


+


+1998-09-12  Ben Elliston  <bje at cygnus.com>


+


+	* {most}.c: Include <errno.h> to get POSIX error values.


+


+	* signal.c (pthread_sigmask): Only provide if HAVE_SIGSET_T is


+	defined.


+ 


+	* config.h: #undef features, don't #define them.  This will be


+	generated by autoconf very soon.


+	


+1998-08-11  Ben Elliston  <bje at cygnus.com>


+


+	* Makefile (LIB): Define.


+	(clean): Define target.


+	(all): Build a library not just the object files.


+


+	* pthread.h: Provide a definition for struct timespec if we don't


+	already have one.


+


+	* windows.c (TlsGetValue): Bug fix.


+	


+Thu Aug  6 15:19:22 1998  Ross Johnson  <rpj at swan.canberra.edu.au>


+


+	* misc.c (pthread_once): Fix arg 1 of EnterCriticalSection()


+ 	and LeaveCriticalSection() calls to pass address-of lock.


+


+	* fork.c (pthread_atfork): Typecast (void (*)(void *)) funcptr


+	in each ptw32_handler_push() call.


+


+	* exit.c (ptw32_exit): Fix attr arg in 


+	pthread_attr_getdetachstate() call.


+


+	* private.c (ptw32_new_thread): Typecast (HANDLE) NULL.


+	(ptw32_delete_thread): Ditto.


+


+	* implement.h: (PTW32_MAX_THREADS): Add define. This keeps


+	changing in an attempt to make thread administration data types


+	opaque and cleanup DLL startup.


+


+	* dll.c (PthreadsEntryPoint): 


+	(ptw32_virgins): Remove malloc() and free() calls.


+	(ptw32_reuse): Ditto.


+	(ptw32_win32handle_map): Ditto.


+	(ptw32_threads_mutex_table): Ditto.


+


+	* global.c (_POSIX_THREAD_THREADS_MAX): Initialise with 


+	PTW32_MAX_THREADS.


+	(ptw32_virgins): Ditto.


+	(ptw32_reuse): Ditto.


+	(ptw32_win32handle_map): Ditto.


+	(ptw32_threads_mutex_table): Ditto.


+


+	* create.c (pthread_create): Typecast (HANDLE) NULL.


+	Typecast (unsigned (*)(void *)) start_routine.


+


+	* condvar.c (pthread_cond_init): Add address-of operator & to


+	arg 1 of pthread_mutex_init() call.


+	(pthread_cond_destroy): Add address-of operator & to


+	arg 1 of pthread_mutex_destroy() call. 


+


+	* cleanup.c (ptw32_destructor_pop_all): Add (int) cast to 


+	pthread_getspecific() arg.


+	(ptw32_destructor_pop): Add (void *) cast to "if" conditional.


+	(ptw32_destructor_push): Add (void *) cast to


+	ptw32_handler_push() "key" arg.


+	(malloc.h): Add include.


+


+	* implement.h (ptw32_destructor_pop): Add prototype.


+


+	* tsd.c (implement.h): Add include.


+


+	* sync.c (pthread_join): Remove target_thread_mutex and it's


+	initialisation. Rename getdetachedstate to getdetachstate.


+	Remove unused variable "exitcode".


+	(pthread_detach): Remove target_thread_mutex and it's


+	initialisation. Rename getdetachedstate to getdetachstate.


+	Rename setdetachedstate to setdetachstate.


+


+	* signal.c (pthread_sigmask): Rename SIG_SET to SIG_SETMASK.


+	Cast "set" to (long *) in assignment to passify compiler warning.


+	Add address-of operator & to thread->attr.sigmask in memcpy() call


+	and assignment.


+	(pthread_sigmask): Add address-of operator & to thread->attr.sigmask


+	in memcpy() call and assignment.


+


+	* windows.h (THREAD_PRIORITY_ERROR_RETURN): Add.


+	(THREAD_PRIORITY_LOWEST): Add.


+	(THREAD_PRIORITY_HIGHEST): Add.


+


+	* sched.c (is_attr): Add function.


+	(implement.h): Add include.


+	(pthread_setschedparam): Rename all instances of "sched_policy"


+	to "sched_priority".


+	(pthread_getschedparam): Ditto.


+


+Tue Aug  4 16:57:58 1998  Ross Johnson  <rpj at swan.canberra.edu.au>


+


+	* private.c (ptw32_delete_thread): Fix typo. Add missing ';'.


+


+	* global.c (ptw32_virgins): Change types from pointer to 


+	array pointer.


+	(ptw32_reuse): Ditto.


+	(ptw32_win32handle_map): Ditto.


+	(ptw32_threads_mutex_table): Ditto.


+


+	* implement.h(ptw32_virgins): Change types from pointer to 


+	array pointer.


+	(ptw32_reuse): Ditto.


+	(ptw32_win32handle_map): Ditto.


+	(ptw32_threads_mutex_table): Ditto.


+


+	* private.c (ptw32_delete_thread): Fix "entry" should be "thread".


+


+	* misc.c (pthread_self): Add extern for ptw32_threadID_TlsIndex.


+


+	* global.c: Add comment.


+


+	* misc.c (pthread_once): Fix member -> dereferences.


+	Change ptw32_once_flag to once_control->flag in "if" test.


+


+Tue Aug  4 00:09:30 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* implement.h(ptw32_virgins): Add extern.


+	(ptw32_virgin_next): Ditto.


+	(ptw32_reuse): Ditto.


+	(ptw32_reuse_top): Ditto.


+	(ptw32_win32handle_map): Ditto.


+	(ptw32_threads_mutex_table): Ditto.


+


+	* global.c (ptw32_virgins): Changed from array to pointer.


+	Storage allocation for the array moved into dll.c.


+	(ptw32_reuse): Ditto.


+	(ptw32_win32handle_map): Ditto.


+	(ptw32_threads_mutex_table): Ditto.


+


+	* dll.c (PthreadsEntryPoint): Set up thread admin storage when


+	DLL is loaded.


+


+	* fork.c (pthread_atfork): Fix function pointer arg to all


+	ptw32_handler_push() calls. Change "arg" arg to NULL in child push.


+


+	* exit.c: Add windows.h and process.h includes.


+	(ptw32_exit): Add local detachstate declaration.


+	(ptw32_exit): Fix incorrect name for pthread_attr_getdetachstate().


+


+	* pthread.h (_POSIX_THREAD_ATTR_STACKSIZE): Move from global.c


+	(_POSIX_THREAD_ATTR_STACKADDR): Ditto.


+


+	* create.c (pthread_create): Fix #if should be #ifdef.


+	(ptw32_start_call): Remove usused variables.


+


+	* process.h: Create.


+


+	* windows.h: Move _beginthreadex and _endthreadex into


+	process.h


+


+Mon Aug  3 21:19:57 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* condvar.c (pthread_cond_init): Add NULL attr to


+	pthread_mutex_init() call - default attributes will be used.


+	(cond_wait): Fix typo.


+	(cond_wait): Fix typo - cv was ev.


+	(pthread_cond_broadcast): Fix two identical typos.


+


+	* cleanup.c (ptw32_destructor_pop_all): Remove _ prefix from


+	PTHREAD_DESTRUCTOR_ITERATIONS.


+


+	* pthread.h: Move _POSIX_* values into posix.h


+


+	* pthread.h: Fix typo in pthread_mutex_init() prototype.


+


+	* attr.c (pthread_attr_init): Fix error in priority member init.


+


+	* windows.h (THREAD_PRIORITY_NORMAL): Add.


+


+	* pthread.h (sched_param): Add missing ';' to struct definition. 


+


+	* attr.c (pthread_attr_init): Remove obsolete pthread_attr_t


+	member initialisation - cancelstate, canceltype, cancel_pending.


+	(is_attr): Make arg "attr" a const.


+


+	* implement.h (PTW32_HANDLER_POP_LIFO): Remove definition.


+	(PTW32_HANDLER_POP_FIFO): Ditto.


+	(PTW32_VALID): Add missing newline escape (\).


+	(ptw32_handler_node): Make element "next" a pointer.


+


+1998-08-02  Ben Elliston  <bje at cygnus.com>


+


+	* windows.h: Remove duplicate TlsSetValue() prototype.  Add 


+	TlsGetValue() prototype.


+	(FALSE): Define.


+	(TRUE): Likewise.


+	Add forgotten errno values.  Guard against multiple #includes.


+


+	* windows.c: New file.  Implement stubs for Win32 functions.


+


+	* Makefile (SRCS): Remove.  Not explicitly needed.


+	(CFLAGS): Add -Wall for all warnings with GCC.


+


+Sun Aug  2 19:03:42 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* config.h: Create. This is a temporary stand-in for autoconf yet


+	to be done.


+ 	(HAVE_SIGNAL_H): Add.


+


+	* pthread.h: Minor rearrangement for temporary config.h.


+


+Fri Jul 31 14:00:29 1998  Ross Johnson  <rpj at swan.canberra.edu.au>


+


+	* cleanup.c (ptw32_destructor_pop): Implement. Removes


+	destructors associated with a key without executing them.


+	(ptw32_destructor_pop_all): Add FIXME comment.


+


+	* tsd.c (pthread_key_delete): Add call to ptw32_destructor_pop().


+


+Fri Jul 31 00:05:45 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* tsd.c (pthread_key_create): Update to properly associate


+	the destructor routine with the key.


+	(pthread_key_delete): Add FIXME comment.


+


+	* exit.c (ptw32_vacuum): Add call to


+	ptw32_destructor_pop_all().


+


+	* implement.h (ptw32_handler_pop_all): Add prototype.


+	(ptw32_destructor_pop_all): Ditto.


+


+	* cleanup.c (ptw32_destructor_push): Implement. This is just a


+	call to ptw32_handler_push().


+	(ptw32_destructor_pop_all): Implement. This is significantly


+	different to ptw32_handler_pop_all().


+


+	* Makefile (SRCS): Create. Preliminary.


+


+	* windows.h: Create. Contains Win32 definitions for compile


+	testing. This is just a standin for the real one.


+


+	* pthread.h (SIG_UNBLOCK): Fix typo. Was SIG_BLOCK.


+	(windows.h): Add include. Required for CRITICAL_SECTION.


+	(pthread_cond_t): Move enum declaration outside of struct


+	definition.


+	(unistd.h): Add include - may be temporary.


+


+	* condvar.c (windows.h): Add include.


+


+	* implement.h (PTW32_THIS): Remove - no longer required.


+	(PTW32_STACK): Use pthread_self() instead of PTW32_THIS.


+


+Thu Jul 30 23:12:45 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* implement.h: Remove ptw32_find_entry() prototype.


+


+	* private.c: Extend comments.


+	Remove ptw32_find_entry() - no longer needed.


+


+	* create.c (ptw32_start_call): Add call to TlsSetValue() to


+	store the thread ID.


+


+	* dll.c (PthreadsEntryPoint): Implement. This is called


+	whenever a process loads the DLL. Used to initialise thread


+	local storage.


+


+	* implement.h: Add ptw32_threadID_TlsIndex.


+	Add ()s around PTW32_VALID expression.


+


+	* misc.c (pthread_self): Re-implement using Win32 TLS to store


+	the threads own ID.


+


+Wed Jul 29 11:39:03 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* private.c: Corrections in comments.


+	(ptw32_new_thread): Alter "if" flow to be more natural.


+


+	* cleanup.c (ptw32_handler_push): Same as below.


+


+	* create.c (pthread_create): Same as below.


+


+	* private.c (ptw32_new_thread): Rename "new" to "new_thread".


+	Since when has a C programmer been required to know C++?


+


+Tue Jul 28 14:04:29 1998  Ross Johnson  <rpj at swan.canberra.edu.au>


+


+	* implement.h: Add PTW32_VALID macro.


+


+	* sync.c (pthread_join): Modify to use the new thread


+	type and ptw32_delete_thread(). Rename "target" to "thread".


+	Remove extra local variable "target".


+	(pthread_detach): Ditto.


+


+	* signal.c (pthread_sigmask): Move init of "us" out of inner block.


+	Fix instance of "this" should have been "us". Rename "us" to "thread".


+


+	* sched.c (pthread_setschedparam): Modify to use the new thread


+	type.


+	(pthread_getschedparam): Ditto.


+


+	* private.c (ptw32_find_thread): Fix return type and arg.


+


+	* implement.h: Remove PTW32_YES and PTW32_NO.


+	(ptw32_new_thread): Add prototype.


+	(ptw32_find_thread): Ditto.


+	(ptw32_delete_thread): Ditto.


+	(ptw32_new_thread_entry): Remove prototype.


+	(ptw32_find_thread_entry): Ditto.


+	(ptw32_delete_thread_entry): Ditto.


+	(  PTW32_NEW, PTW32_INUSE, PTW32_EXITED, PTW32_REUSE):


+	Add.


+


+


+	* create.c (pthread_create): Minor rename "us" to "new" (I need


+	these cues but it doesn't stop me coming out with some major bugs


+	at times).


+	Load start_routine and arg into the thread so the wrapper can


+	call it.


+


+	* exit.c (pthread_exit): Fix pthread_this should be pthread_self.


+


+	* cancel.c (pthread_setcancelstate): Change


+ 	ptw32_threads_thread_t * to pthread_t and init with


+ 	pthread_this().


+	(pthread_setcanceltype): Ditto.


+


+	* exit.c (ptw32_exit): Add new pthread_t arg.


+	Rename ptw32_delete_thread_entry to ptw32_delete_thread.


+	Rename "us" to "thread".


+	(pthread_exit): Call ptw32_exit with added thread arg.


+


+	* create.c (ptw32_start_call): Insert missing ")".


+	Add "us" arg to ptw32_exit() call.


+	(pthread_create): Modify to use new thread allocation scheme.


+


+	* private.c: Added detailed explanation of the new thread


+	allocation scheme.


+	(ptw32_new_thread): Totally rewritten to use


+	new thread allocation scheme.


+	(ptw32_delete_thread): Ditto.


+	(ptw32_find_thread): Obsolete.


+


+Mon Jul 27 17:46:37 1998  Ross Johnson  <rpj at swan.canberra.edu.au>


+


+	* create.c (pthread_create): Start of rewrite. Not completed yet.


+


+	* private.c (ptw32_new_thread_entry): Start of rewrite. Not


+	complete.


+


+	* implement.h (ptw32_threads_thread): Rename, remove thread


+	member, add win32handle and ptstatus members.


+	(ptw32_t): Add.


+


+	* pthread.h: pthread_t is no longer mapped directly to a Win32


+	HANDLE type. This is so we can let the Win32 thread terminate and


+	reuse the HANDLE while pthreads holds it's own thread ID until


+	the last waiting join exits.


+


+Mon Jul 27 00:20:37 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* private.c (ptw32_delete_thread_entry): Destroy the thread


+ 	entry attribute object before deleting the thread entry itself.


+


+	* attr.c (pthread_attr_init): Initialise cancel_pending = FALSE.


+	(pthread_attr_setdetachstate): Rename "detached" to "detachedstate".


+	(pthread_attr_getdetachstate): Ditto.


+


+	* exit.c (ptw32_exit): Fix incorrect check for detachedstate.


+


+	* implement.h (ptw32_call_t): Remove env member. 


+


+Sun Jul 26 13:06:12 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* implement.h (ptw32_new_thread_entry): Fix prototype.


+	(ptw32_find_thread_entry): Ditto.


+	(ptw32_delete_thread_entry): Ditto.


+	(ptw32_exit): Add prototype.


+


+	* exit.c (ptw32_exit): New function. Called from pthread_exit()


+	and ptw32_start_call() to exit the thread. It allows an extra


+	argument which is the return code passed to _endthreadex().


+	(ptw32_exit): Move thread entry delete call from ptw32_vacuum()


+	into here. Add more explanation of thread entry deletion.


+	(ptw32_exit): Clarify comment.


+


+	* create.c (ptw32_start_call): Change pthread_exit() call to


+	ptw32_exit() call.


+


+	* exit.c (ptw32_vacuum): Add thread entry deletion code


+	moved from ptw32_start_call(). See next item.


+	(pthread_exit): Remove longjmp(). Add mutex lock around thread table


+	manipulation code. This routine now calls _enthreadex().


+


+	* create.c (ptw32_start_call): Remove setjmp() call and move


+	cleanup code out. Call pthread_exit(NULL) to terminate the thread.


+


+1998-07-26  Ben Elliston  <bje at cygnus.com>


+


+	* tsd.c (pthread_getspecific): Update comments.


+


+	* mutex.c (pthread_mutexattr_setpshared): Not supported; remove.


+	(pthread_mutexattr_getpshared): Likewise.


+


+	* pthread.h (pthread_mutexattr_setpshared): Remove prototype.


+	(pthread_mutexattr_getpshared): Likewise.


+


+Sun Jul 26 00:09:59 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* sync.c: Rename all instances of ptw32_count_mutex to


+	ptw32_table_mutex.


+


+	* implement.h: Rename ptw32_count_mutex to


+	ptw32_table_mutex.


+


+	* global.c: Rename ptw32_count_mutex to


+	ptw32_table_mutex.


+


+	* create.c (pthread_create): Add critical sections.


+	(ptw32_start_call): Rename ptw32_count_mutex to


+	ptw32_table_mutex.


+


+	* cancel.c (pthread_setcancelstate): Fix indirection bug and rename


+	"this" to "us".


+


+	* signal.c (pthread_sigmask): Rename "this" to "us" and fix some


+	minor syntax errors. Declare "us" and initialise it.


+


+	* sync.c (pthread_detach): Rename "this" to "target".


+


+	* pthread.h: Converting PTHREAD_* defines to alias the (const int)


+	values in global.c.


+


+	* global.c: Started converting PTHREAD_* defines to (const int) as


+ 	a part of making the eventual pthreads DLL binary compatible


+ 	through version changes.


+


+	* condvar.c (cond_wait): Add cancelation point. This applies the


+	point to both pthread_cond_wait() and pthread_cond_timedwait().


+


+	* exit.c (pthread_exit): Rename "this" to "us".


+


+	* implement.h: Add comment.


+


+	* sync.c (pthread_join): I've satisfied myself that pthread_detach()


+	does set the detached attribute in the thread entry attributes


+	to PTHREAD_CREATE_DETACHED. "if" conditions were changed to test


+	that attribute instead of a separate flag.


+


+	* create.c (pthread_create): Rename "this" to "us".


+	(pthread_create): cancelstate and canceltype are not attributes


+	so the copy to thread entry attribute storage was removed.


+	Only the thread itself can change it's cancelstate or canceltype,


+	ie. the thread must exist already.


+


+	* private.c (ptw32_delete_thread_entry): Mutex locks removed.


+	Mutexes must be applied at the caller level.


+	(ptw32_new_thread_entry): Ditto.


+	(ptw32_new_thread_entry): Init cancelstate, canceltype, and


+	cancel_pending to default values.


+	(ptw32_new_thread_entry): Rename "this" to "new".


+	(ptw32_find_thread_entry): Rename "this" to "entry".


+	(ptw32_delete_thread_entry): Rename "thread_entry" to "entry".


+


+	* create.c (ptw32_start_call): Mutexes changed to


+	ptw32_count_mutex. All access to the threads table entries is


+	under the one mutex. Otherwise chaos reigns.


+


+Sat Jul 25 23:16:51 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* implement.h (ptw32_threads_thread): Move cancelstate and


+ 	canceltype members out of pthread_attr_t into here.


+


+	* fork.c (fork): Add comment.


+


+1998-07-25  Ben Elliston  <bje at cygnus.com>


+


+	* fork.c (fork): Autoconfiscate.


+


+Sat Jul 25 00:00:13 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* create.c (ptw32_start_call): Set thread priority.  Ensure our


+ 	thread entry is removed from the thread table but only if


+ 	pthread_detach() was called and there are no waiting joins.


+	(pthread_create): Set detach flag in thread entry if the 


+	thread is created PTHREAD_CREATE_DETACHED.


+


+	* pthread.h (pthread_attr_t): Rename member "detachedstate".


+


+	* attr.c (pthread_attr_init): Rename attr members.


+


+	* exit.c (pthread_exit): Fix indirection mistake.


+


+	* implement.h (PTW32_THREADS_TABLE_INDEX): Add.


+


+	* exit.c (ptw32_vacuum): Fix incorrect args to


+	ptw32_handler_pop_all() calls.


+	Make thread entry removal conditional.


+


+	* sync.c (pthread_join): Add multiple join and async detach handling.


+


+	* implement.h (PTW32_THREADS_TABLE_INDEX): Add.


+


+	* global.c (ptw32_threads_mutex_table): Add.


+


+	* implement.h (ptw32_once_flag): Remove.


+	(ptw32_once_lock): Ditto.


+	(ptw32_threads_mutex_table): Add.


+


+	* global.c (ptw32_once_flag): Remove.


+	(ptw32_once_lock): Ditto.


+


+	* sync.c (pthread_join): Fix tests involving new return value


+	from ptw32_find_thread_entry().


+	(pthread_detach): Ditto.


+


+	* private.c (ptw32_find_thread_entry): Failure return code


+	changed from -1 to NULL.


+


+Fri Jul 24 23:09:33 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* create.c (pthread_create): Change . to -> in sigmask memcpy() args.


+


+	* pthread.h: (pthread_cancel): Add function prototype.


+	(pthread_testcancel): Ditto.


+


+1998-07-24  Ben Elliston  <bje at cygnus.com>


+


+	* pthread.h (pthread_condattr_t): Rename dummy structure member.


+	(pthread_mutexattr_t): Likewise.


+


+Fri Jul 24 21:13:55 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* cancel.c (pthread_cancel): Implement.


+	(pthread_testcancel): Implement.


+


+	* exit.c (pthread_exit): Add comment explaining the longjmp().


+


+	* implement.h (ptw32_threads_thread_t): New member cancelthread.


+	(PTW32_YES): Define.


+	(PTW32_NO): Define.


+	(RND_SIZEOF): Remove.


+


+	* create.c (pthread_create): Rename cancelability to cancelstate.


+


+	* pthread.h (pthread_attr_t): Rename cancelability to cancelstate.


+	(PTHREAD_CANCELED): Define.


+


+1998-07-24  Ben Elliston  <bje at cygnus.com>


+


+	* pthread.h (SIG_BLOCK): Define if not already defined.


+	(SIG_UNBLOCK): Likewise.


+	(SIG_SETMASK): Likewise.


+	(pthread_attr_t): Add signal mask member.


+	(pthread_sigmask): Add function prototype.


+


+	* signal.c (pthread_sigmask): Implement.


+


+	* create.c: #include <string.h> to get a prototype for memcpy().


+	(pthread_create): New threads inherit their creator's signal


+	mask.  Copy the signal mask to the new thread structure if we know


+	about signals.


+	


+Fri Jul 24 16:33:17 1998  Ross Johnson  <rpj at swan.canberra.edu.au>


+


+	* fork.c (pthread_atfork): Add all the necessary push calls.


+	Local implementation semantics:


+	If we get an ENOMEM at any time then ALL handlers


+	(including those from previous pthread_atfork() calls) will be


+	popped off each of the three atfork stacks before we return.


+	(fork): Add all the necessary pop calls. Add the thread cancellation


+	and join calls to the child fork.


+	Add #includes.


+


+	* implement.h: (ptw32_handler_push): Fix return type and stack arg


+	type in prototype.


+	(ptw32_handler_pop): Fix stack arg type in prototype.


+	(ptw32_handler_pop_all): Fix stack arg type in prototype.


+


+	* cleanup.c (ptw32_handler_push): Change return type to int and


+	return ENOMEM if malloc() fails.


+


+	* sync.c (pthread_detach): Use equality test, not assignment.


+


+	* create.c (ptw32_start_call): Add call to Win32 CloseHandle()


+	if thread is detached.


+


+1998-07-24  Ben Elliston  <bje at cygnus.com>


+


+	* sync.c (pthread_detach): Close the Win32 thread handle to


+	emulate detached (or daemon) threads.


+


+Fri Jul 24 03:00:25 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* sync.c (pthread_join): Save valueptr arg in joinvalueptr for


+	pthread_exit() to use.


+


+	* private.c (ptw32_new_thread_entry): Initialise joinvalueptr to


+	NULL.


+


+	* create.c (ptw32_start_call): Rewrite to facilitate joins.


+	pthread_exit() will do a longjmp() back to here. Does appropriate


+	cleanup and exit/return from the thread.


+	(pthread_create): _beginthreadex() now passes a pointer to our


+	thread table entry instead of just the call member of that entry.


+


+	* implement.h (ptw32_threads_thread): New member 


+	void ** joinvalueptr.


+	(ptw32_call_t): New member jmpbuf env.


+


+	* exit.c (pthread_exit): Major rewrite to handle joins and handing


+	value pointer to joining thread. Uses longjmp() back to 


+	ptw32_start_call().


+


+	* create.c (pthread_create): Ensure values of new attribute members


+	are copied to the thread attribute object.


+


+	* attr.c (pthread_attr_destroy):  Fix merge conflicts.


+	(pthread_attr_getdetachstate):  Fix merge conflicts.


+	(pthread_attr_setdetachstate):  Fix merge conflicts.


+


+	* pthread.h:  Fix merge conflicts.


+


+	* sync.c (pthread_join): Fix merge conflicts.


+


+Fri Jul 24 00:21:21 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* sync.c (pthread_join): Add check for valid and joinable


+	thread.


+	(pthread_detach): Implement. After checking for a valid and joinable


+	thread, it's still a no-op.


+


+	* private.c (ptw32_find_thread_entry): Bug prevented returning


+	an error value in some cases.


+


+	* attr.c (pthread_attr_setdetachedstate): Implement.


+	(pthread_attr_getdetachedstate): Implement.


+


+	* implement.h: Move more hidden definitions into here from


+	pthread.h.


+


+1998-07-24  Ben Elliston  <bje at cygnus.com>


+


+	* pthread.h (PTHREAD_CREATE_JOINABLE): Define.


+	(PTHREAD_CREATE_DETACHED): Likewise.


+	(pthread_attr_t): Add new structure member `detached'.


+	(pthread_attr_getdetachstate): Add function prototype.


+	(pthread_attr_setdetachstate): Likewise.


+


+	* sync.c (pthread_join): Return if the target thread is detached.


+


+	* attr.c (pthread_attr_init): Initialise cancelability and


+	canceltype structure members.


+	(pthread_attr_getdetachstate): Implement.


+	(pthread_attr_setdetachstate): Likewise.


+


+	* implement.h (PTW32_CANCEL_DEFAULTS): Remove.  Bit fields


+	proved to be too cumbersome.  Set the defaults in attr.c using the


+	public PTHREAD_CANCEL_* constants.


+


+	* cancel.c: New file.


+


+	* pthread.h (sched_param): Define this type.


+	(pthread_attr_getschedparam): Add function prototype.


+	(pthread_attr_setschedparam): Likewise.


+	(pthread_setcancelstate): Likewise.


+	(pthread_setcanceltype): Likewise.


+	(sched_get_priority_min): Likewise.


+	(sched_get_priority_max): Likewise.


+	(pthread_mutexattr_setprotocol): Remove; not supported.


+	(pthread_mutexattr_getprotocol): Likewise.


+	(pthread_mutexattr_setprioceiling): Likewise.


+	(pthread_mutexattr_getprioceiling): Likewise.


+	(pthread_attr_t): Add canceltype member.  Update comments.


+	(SCHED_OTHER): Define this scheduling policy constant.


+	(SCHED_FIFO): Likewise.


+	(SCHED_RR): Likewise.


+	(SCHED_MIN): Define the lowest possible value for this constant.


+	(SCHED_MAX): Likewise, the maximum possible value.


+	(PTHREAD_CANCEL_ASYNCHRONOUS): Redefine.


+	(PTHREAD_CANCEL_DEFERRED): Likewise.


+	


+	* sched.c: New file.


+	(pthread_setschedparam): Implement.


+	(pthread_getschedparam): Implement.


+	(sched_get_priority_max): Validate policy argument.


+	(sched_get_priority_min): Likewise.


+


+	* mutex.c (pthread_mutexattr_setprotocol): Remove; not supported.


+	(pthread_mutexattr_getprotocol): Likewise.


+	(pthread_mutexattr_setprioceiling): Likewise.


+	(pthread_mutexattr_getprioceiling): Likewise.


+


+Fri Jul 24 00:21:21 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* create.c (pthread_create): Arg to ptw32_new_thread_entry()


+	changed. See next entry. Move mutex locks out. Changes made yesterday


+	and today allow us to start the new thread running rather than


+	temporarily suspended.


+


+	* private.c (ptw32_new_thread_entry): ptw32_thread_table


+	was changed back to a table of thread structures rather than pointers.


+	As such we're trading storage for increaded speed. This routine


+	was modified to work with the new table. Mutex lock put in around


+	global data accesses.


+	(ptw32_find_thread_entry): Ditto


+	(ptw32_delete_thread_entry): Ditto


+


+Thu Jul 23 23:25:30 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* global.c: New. Global data objects declared here. These moved from


+	pthread.h.


+


+	* pthread.h: Move implementation hidden definitions into


+	implement.h.


+


+	* implement.h: Move implementation hidden definitions from


+	pthread.h. Add constants to index into the different handler stacks.


+


+	* cleanup.c (ptw32_handler_push): Simplify args. Restructure.


+	(ptw32_handler_pop): Simplify args. Restructure.


+	(ptw32_handler_pop_all): Simplify args. Restructure.


+


+Wed Jul 22 00:16:22 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* attr.c, implement.h, pthread.h, ChangeLog: Resolve CVS merge


+	conflicts.


+


+	* private.c (ptw32_find_thread_entry): Changes to return type


+	to support leaner ptw32_threads_table[] which now only stores


+	ptw32_thread_thread_t *.


+	(ptw32_new_thread_entry): Internal changes.


+	(ptw32_delete_thread_entry): Internal changes to avoid contention.


+ 	Calling routines changed accordingly.


+


+	* pthread.h: Modified cleanup macros to use new generic push and pop.


+	Added destructor and atfork stacks to ptw32_threads_thread_t.


+


+	* cleanup.c (ptw32_handler_push, ptw32_handler_pop,


+	ptw32_handler_pop_all): Renamed cleanup push and pop routines


+	and made generic to handle destructors and atfork handlers as


+	well.


+


+	* create.c (ptw32_start_call): New function is a wrapper for


+	all new threads. It allows us to do some cleanup when the thread


+	returns, ie. that is otherwise only done if the thread is cancelled.


+


+	* exit.c (ptw32_vacuum): New function contains code from 


+	pthread_exit() that we need in the new ptw32_start_call()


+	as well.


+


+	* implement.h: Various additions and minor changes.


+


+	* pthread.h: Various additions and minor changes.


+	Change cleanup handler macros to use generic handler push and pop


+	functions.


+


+	* attr.c: Minor mods to all functions.


+	(is_attr): Implemented missing function.


+


+	* create.c (pthread_create): More clean up.


+


+	* private.c (ptw32_find_thread_entry): Implement.


+	(ptw32_delete_thread_entry): Implement.


+	(ptw32_new_thread_entry): Implement.


+	These functions manipulate the implementations internal thread


+	table and are part of general code cleanup and modularisation.


+	They replace ptw32_getthreadindex() which was removed.


+


+	* exit.c (pthread_exit): Changed to use the new code above.


+


+	* pthread.h: Add cancelability constants. Update comments.


+


+1998-07-22  Ben Elliston  <bje at cygnus.com>


+


+	* attr.c (pthread_setstacksize): Update test of attr argument.


+	(pthread_getstacksize): Likewise.


+	(pthread_setstackaddr): Likewise.


+	(pthread_getstackaddr): Likewise.


+	(pthread_attr_init): No need to allocate any storage.


+	(pthread_attr_destroy): No need to free any storage.


+


+	* mutex.c (is_attr): Not likely to be needed; remove.


+	(remove_attr): Likewise.


+	(insert_attr): Likewise.


+


+	* implement.h (ptw32_mutexattr_t): Moved to a public definition


+	in pthread.h.  There was little gain in hiding these details.


+	(ptw32_condattr_t): Likewise.


+	(ptw32_attr_t): Likewise.


+


+	* pthread.h (pthread_atfork): Add function prototype.


+	(pthread_attr_t): Moved here from implement.h.


+


+	* fork.c (pthread_atfork): Preliminary implementation.


+	(ptw32_fork): Likewise.


+


+Wed Jul 22 00:16:22 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* cleanup.c (ptw32_cleanup_push): Implement.


+	(ptw32_cleanup_pop): Implement.


+	(ptw32_do_cancellation): Implement.


+	These are private to the implementation. The real cleanup functions


+	are macros. See below.


+


+	* pthread.h (pthread_cleanup_push): Implement as a macro.


+	(pthread_cleanup_pop): Implement as a macro.


+	Because these are macros which start and end a block, the POSIX scoping


+	requirement is observed. See the comment in the file.


+


+	* exit.c (pthread_exit): Refine the code.


+


+	* create.c (pthread_create): Code cleanup.


+


+	* implement.h (RND_SIZEOF): Add RND_SIZEOF(T) to round sizeof(T)


+	up to multiple of DWORD.


+	Add function prototypes.


+


+	* private.c (ptw32_getthreadindex): "*thread" should have been 


+	"thread". Detect empty slot fail condition.


+


+1998-07-20  Ben Elliston  <bje at cygnus.com>


+


+	* misc.c (pthread_once): Implement.  Don't use a per-application


+	flag and mutex--make `pthread_once_t' contain these elements in


+	their structure.  The earlier version had incorrect semantics.


+	


+	* pthread.h (ptw32_once_flag): Add new variable.  Remove.


+	(ptw32_once_lock): Add new mutex lock to ensure integrity of


+	access to ptw32_once_flag.  Remove.


+	(pthread_once): Add function prototype.


+	(pthread_once_t): Define this type.


+	


+Mon Jul 20 02:31:05 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* private.c (ptw32_getthreadindex): Implement.


+


+	* pthread.h: Add application static data dependent on


+	_PTHREADS_BUILD_DLL define. This is needed to avoid allocating


+	non-sharable static data within the pthread DLL.


+


+	* implement.h: Add ptw32_cleanup_stack_t, ptw32_cleanup_node_t


+	and PTW32_HASH_INDEX.


+


+	* exit.c (pthread_exit): Begin work on cleanup and de-allocate


+	thread-private storage.


+


+	* create.c (pthread_create): Add thread to thread table.


+	Keep a thread-private copy of the attributes with default values


+	filled in when necessary. Same for the cleanup stack. Make 


+	pthread_create C run-time library friendly by using _beginthreadex()


+	instead of CreateThread(). Fix error returns.


+


+Sun Jul 19 16:26:23 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* implement.h: Rename pthreads_thread_count to ptw32_threads_count.


+	Create ptw32_threads_thread_t struct to keep thread specific data.


+


+	* create.c: Rename pthreads_thread_count to ptw32_threads_count.


+	(pthread_create): Handle errors from CreateThread().


+


+1998-07-19  Ben Elliston  <bje at cygnus.com>


+


+	* condvar.c (pthread_cond_wait): Generalise.  Moved from here ..


+	(cond_wait): To here.


+	(pthread_cond_timedwait): Implement; use generalised cond_wait().


+


+	* pthread.h (pthread_key_t): Define this type.


+	(pthread_key_create): Add function prototype.


+	(pthread_setspecific): Likewise.


+	(pthread_getspecific): Likwise.


+	(pthread_key_delete): Likewise.


+


+	* tsd.c (pthread_key_create): Implement.


+	(pthread_setspecific): Likewise.


+	(pthread_getspecific): Likewise.


+	(pthread_key_delete): Likewise.


+


+	* mutex.c (pthread_mutex_trylock): Return ENOSYS if this function


+	is called on a Win32 platform which is not Windows NT.


+


+1998-07-18  Ben Elliston  <bje at cygnus.com>


+


+	* condvar.c (pthread_condattr_init): Do not attempt to malloc any


+	storage; none is needed now that condattr_t is an empty struct.


+	(pthread_condattr_destory): Likewise; do not free storage.


+	(pthread_condattr_setpshared): No longer supported; return ENOSYS.


+	(pthread_condattr_getpshared): Likewise.


+	(pthread_cond_init): Implement with help from Douglas Schmidt.


+	Remember to initialise the cv's internal mutex.


+	(pthread_cond_wait): Likewise.


+	(pthread_cond_signal): Likewise.


+	(pthread_cond_broadcast): Likewise.


+	(pthread_cond_timedwait): Preliminary implementation, but I need


+	to see some API documentation for `WaitForMultipleObject'.


+	(pthread_destory): Implement.


+


+	* pthread.h (pthread_cond_init): Add function protoype.


+	(pthread_cond_broadcast): Likewise.


+	(pthread_cond_signal): Likewise.


+	(pthread_cond_timedwait): Likewise.


+	(pthread_cond_wait): Likewise.


+	(pthread_cond_destroy): Likewise.


+	(pthread_cond_t): Define this type.  Fix for u_int.  Do not assume


+	that the mutex contained withing the pthread_cond_t structure will


+	be a critical section.  Use our new POSIX type!


+


+	* implement.h (ptw32_condattr_t): Remove shared attribute.


+


+1998-07-17  Ben Elliston  <bje at cygnus.com>


+


+	* pthread.h (PTHREADS_PROCESS_PRIVATE): Remove.


+	(PTHREAD_PROCESS_SHARED): Likewise.  No support for mutexes shared


+	across processes for now.


+	(pthread_mutex_t): Use a Win32 CRITICAL_SECTION type for better


+	performance.


+	


+	* implement.h (ptw32_mutexattr_t): Remove shared attribute.


+	


+	* mutex.c (pthread_mutexattr_setpshared): This optional function


+	is no longer supported, since we want to implement POSIX mutex


+	variables using the much more efficient Win32 critical section


+	primitives.  Critical section objects in Win32 cannot be shared


+	between processes.


+	(pthread_mutexattr_getpshared): Likewise.


+	(pthread_mutexattr_init): No need to malloc any storage; the


+	attributes structure is now empty.


+	(pthread_mutexattr_destroy): This is now a nop.


+	(pthread_mutex_init): Use InitializeCriticalSection().


+	(pthread_mutex_destroy): Use DeleteCriticalSection().


+	(pthread_mutex_lock): Use EnterCriticalSection().


+	(pthread_mutex_trylock): Use TryEnterCriticalSection().  This is


+	not supported by Windows 9x, but trylock is a hack anyway, IMHO.


+	(pthread_mutex_unlock): Use LeaveCriticalSection().


+


+1998-07-14  Ben Elliston  <bje at cygnus.com>


+


+	* attr.c (pthread_attr_setstacksize): Implement.


+	(pthread_attr_getstacksize): Likewise.


+	(pthread_attr_setstackaddr): Likewise.


+	(pthread_attr_getstackaddr): Likewise.


+	(pthread_attr_init): Likewise.


+	(pthread_attr_destroy): Likewise.


+	


+	* condvar.c (pthread_condattr_init): Add `_cond' to function name.


+


+	* mutex.c (pthread_mutex_lock): Add `_mutex' to function name.


+	(pthread_mutex_trylock): Likewise.


+	(pthread_mutex_unlock): Likewise.


+


+	* pthread.h (pthread_condattr_setpshared): Fix typo.


+	(pthread_attr_init): Add function prototype.


+	(pthread_attr_destroy): Likewise.


+	(pthread_attr_setstacksize): Likewise.


+	(pthread_attr_getstacksize): Likewise.


+	(pthread_attr_setstackaddr): Likewise.


+	(pthread_attr_getstackaddr): Likewise.


+	


+Mon Jul 13 01:09:55 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* implement.h: Wrap in #ifndef _IMPLEMENT_H


+


+	* create.c (pthread_create): Map stacksize attr to Win32.


+


+	* mutex.c: Include implement.h


+


+1998-07-13  Ben Elliston  <bje at cygnus.com>


+


+	* condvar.c (pthread_condattr_init): Implement.


+	(pthread_condattr_destroy): Likewise.


+	(pthread_condattr_setpshared): Likewise.


+	(pthread_condattr_getpshared): Likewise.


+	


+	* implement.h (PTHREAD_THREADS_MAX): Remove trailing semicolon.


+	(PTHREAD_STACK_MIN): Specify; needs confirming.


+	(ptw32_attr_t): Define this type.


+	(ptw32_condattr_t): Likewise.


+


+	* pthread.h (pthread_mutex_t): Define this type.


+	(pthread_condattr_t): Likewise.


+	(pthread_mutex_destroy): Add function prototype.


+	(pthread_lock): Likewise.


+	(pthread_trylock): Likewise.


+	(pthread_unlock): Likewise.


+	(pthread_condattr_init): Likewise.


+	(pthread_condattr_destroy): Likewise.


+	(pthread_condattr_setpshared): Likewise.


+	(pthread_condattr_getpshared): Likewise.


+


+	* mutex.c (pthread_mutex_init): Implement.


+	(pthread_mutex_destroy): Likewise.


+	(pthread_lock): Likewise.


+	(pthread_trylock): Likewise.


+	(pthread_unlock): Likewise.


+


+1998-07-12  Ben Elliston  <bje at cygnus.com>


+


+	* implement.h (ptw32_mutexattr_t): Define this implementation


+	internal type.  Application programmers only see a mutex attribute


+	object as a void pointer.


+


+	* pthread.h (pthread_mutexattr_t): Define this type.


+	(pthread_mutexattr_init): Add function prototype.


+	(pthread_mutexattr_destroy): Likewise.


+	(pthread_mutexattr_setpshared): Likewise.


+	(pthread_mutexattr_getpshared): Likewise.


+	(pthread_mutexattr_setprotocol): Likewise.


+	(pthread_mutexattr_getprotocol): Likewise.


+	(pthread_mutexattr_setprioceiling): Likewise.


+	(pthread_mutexattr_getprioceiling): Likewise.


+	(PTHREAD_PROCESS_PRIVATE): Define.


+	(PTHREAD_PROCESS_SHARED): Define.


+


+	* mutex.c (pthread_mutexattr_init): Implement.


+	(pthread_mutexattr_destroy): Implement.


+	(pthread_mutexattr_setprotocol): Implement.


+	(pthread_mutexattr_getprotocol): Likewise.


+	(pthread_mutexattr_setprioceiling): Likewise.


+	(pthread_mutexattr_getprioceiling): Likewise.


+	(pthread_mutexattr_setpshared): Likewise.


+	(pthread_mutexattr_getpshared): Likewise.


+	(insert_attr): New function; very preliminary implementation!


+	(is_attr): Likewise.


+	(remove_attr): Likewise.


+	


+Sat Jul 11 14:48:54 1998  Ross Johnson  <rpj at ixobrychus.canberra.edu.au>


+


+	* implement.h: Preliminary implementation specific defines.


+


+	* create.c (pthread_create): Preliminary implementation.


+


+1998-07-11  Ben Elliston  <bje at cygnus.com>


+


+	* sync.c (pthread_join): Implement.


+


+	* misc.c (pthread_equal): Likewise.


+	


+	* pthread.h (pthread_join): Add function prototype.


+	(pthread_equal): Likewise.


+	


+1998-07-10  Ben Elliston  <bje at cygnus.com>


+


+	* misc.c (pthread_self): Implement.


+


+	* exit.c (pthread_exit): Implement.


+


+	* pthread.h (pthread_exit): Add function prototype.


+	(pthread_self): Likewise.


+	(pthread_t): Define this type.


+


+1998-07-09  Ben Elliston  <bje at cygnus.com>


+


+	* create.c (pthread_create): A dummy stub right now.


+


+	* pthread.h (pthread_create): Add function prototype.