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Diffstat (limited to 'pthreads/pthread.h')
| -rw-r--r-- | pthreads/pthread.h | 1368 |
1 files changed, 1368 insertions, 0 deletions
diff --git a/pthreads/pthread.h b/pthreads/pthread.h new file mode 100644 index 000000000..f3d2dac96 --- /dev/null +++ b/pthreads/pthread.h @@ -0,0 +1,1368 @@ +/* This is an implementation of the threads API of POSIX 1003.1-2001. + * + * -------------------------------------------------------------------------- + * + * Pthreads-win32 - POSIX Threads Library for Win32 + * Copyright(C) 1998 John E. Bossom + * Copyright(C) 1999,2005 Pthreads-win32 contributors + * + * Contact Email: rpj@callisto.canberra.edu.au + * + * The current list of contributors is contained + * in the file CONTRIBUTORS included with the source + * code distribution. The list can also be seen at the + * following World Wide Web location: + * http://sources.redhat.com/pthreads-win32/contributors.html + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library in the file COPYING.LIB; + * if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + */ + +#if !defined( PTHREAD_H ) +#define PTHREAD_H + +/* + * See the README file for an explanation of the pthreads-win32 version + * numbering scheme and how the DLL is named etc. + */ +#define PTW32_VERSION 2,8,0,0 +#define PTW32_VERSION_STRING "2, 8, 0, 0\0" + +/* There are three implementations of cancel cleanup. + * Note that pthread.h is included in both application + * compilation units and also internally for the library. + * The code here and within the library aims to work + * for all reasonable combinations of environments. + * + * The three implementations are: + * + * WIN32 SEH + * C + * C++ + * + * Please note that exiting a push/pop block via + * "return", "exit", "break", or "continue" will + * lead to different behaviour amongst applications + * depending upon whether the library was built + * using SEH, C++, or C. For example, a library built + * with SEH will call the cleanup routine, while both + * C++ and C built versions will not. + */ + +/* + * Define defaults for cleanup code. + * Note: Unless the build explicitly defines one of the following, then + * we default to standard 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. + */ +#if !defined( __CLEANUP_SEH ) && !defined( __CLEANUP_CXX ) && !defined( __CLEANUP_C ) +# define __CLEANUP_C +#endif + +#if defined( __CLEANUP_SEH ) && ( !defined( _MSC_VER ) && !defined(PTW32_RC_MSC)) +#error ERROR [__FILE__, line __LINE__]: SEH is not supported for this compiler. +#endif + +/* + * Stop here if we are being included by the resource compiler. + */ +#ifndef RC_INVOKED + +#undef PTW32_LEVEL + +#if defined(_POSIX_SOURCE) +#define PTW32_LEVEL 0 +/* Early POSIX */ +#endif + +#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 199309 +#undef PTW32_LEVEL +#define PTW32_LEVEL 1 +/* Include 1b, 1c and 1d */ +#endif + +#if defined(INCLUDE_NP) +#undef PTW32_LEVEL +#define PTW32_LEVEL 2 +/* Include Non-Portable extensions */ +#endif + +#define PTW32_LEVEL_MAX 3 + +#if !defined(PTW32_LEVEL) +#define PTW32_LEVEL PTW32_LEVEL_MAX +/* Include everything */ +#endif + +#ifdef _UWIN +# define HAVE_STRUCT_TIMESPEC 1 +# define HAVE_SIGNAL_H 1 +# undef HAVE_CONFIG_H +# pragma comment(lib, "pthread") +#endif + +/* + * ------------------------------------------------------------- + * + * + * Module: pthread.h + * + * Purpose: + * Provides an implementation of PThreads based upon the + * standard: + * + * POSIX 1003.1-2001 + * and + * The Single Unix Specification version 3 + * + * (these two are equivalent) + * + * in order to enhance code portability between Windows, + * various commercial Unix implementations, and Linux. + * + * See the ANNOUNCE file for a full list of conforming + * routines and defined constants, and a list of missing + * routines and constants not defined in this implementation. + * + * Authors: + * There have been many contributors to this library. + * The initial implementation was contributed by + * John Bossom, and several others have provided major + * sections or revisions of parts of the implementation. + * Often significant effort has been contributed to + * find and fix important bugs and other problems to + * improve the reliability of the library, which sometimes + * is not reflected in the amount of code which changed as + * result. + * As much as possible, the contributors are acknowledged + * in the ChangeLog file in the source code distribution + * where their changes are noted in detail. + * + * Contributors are listed in the CONTRIBUTORS file. + * + * As usual, all bouquets go to the contributors, and all + * brickbats go to the project maintainer. + * + * Maintainer: + * The code base for this project is coordinated and + * eventually pre-tested, packaged, and made available by + * + * Ross Johnson <rpj@callisto.canberra.edu.au> + * + * QA Testers: + * Ultimately, the library is tested in the real world by + * a host of competent and demanding scientists and + * engineers who report bugs and/or provide solutions + * which are then fixed or incorporated into subsequent + * versions of the library. Each time a bug is fixed, a + * test case is written to prove the fix and ensure + * that later changes to the code don't reintroduce the + * same error. The number of test cases is slowly growing + * and therefore so is the code reliability. + * + * Compliance: + * See the file ANNOUNCE for the list of implemented + * and not-implemented routines and defined options. + * Of course, these are all defined is this file as well. + * + * Web site: + * The source code and other information about this library + * are available from + * + * http://sources.redhat.com/pthreads-win32/ + * + * ------------------------------------------------------------- + */ + +/* Try to avoid including windows.h */ +#if defined(__MINGW32__) && defined(__cplusplus) +#define PTW32_INCLUDE_WINDOWS_H +#endif + +#ifdef PTW32_INCLUDE_WINDOWS_H +#include <windows.h> +#endif + +#if defined(_MSC_VER) && _MSC_VER < 1300 || defined(__DMC__) +/* + * VC++6.0 or early compiler's header has no DWORD_PTR type. + */ +typedef unsigned long DWORD_PTR; +#endif +/* + * ----------------- + * autoconf switches + * ----------------- + */ + +#if HAVE_CONFIG_H +#include "config.h" +#endif /* HAVE_CONFIG_H */ + +#ifndef NEED_FTIME +#include <time.h> +#else /* NEED_FTIME */ +/* use native WIN32 time API */ +#endif /* NEED_FTIME */ + +#if HAVE_SIGNAL_H +#include <signal.h> +#endif /* HAVE_SIGNAL_H */ + +#include <setjmp.h> +#include <limits.h> + +/* + * Boolean values to make us independent of system includes. + */ +enum { + PTW32_FALSE = 0, + PTW32_TRUE = (! PTW32_FALSE) +}; + +/* + * This is a duplicate of what is in the autoconf config.h, + * which is only used when building the pthread-win32 libraries. + */ + +#ifndef PTW32_CONFIG_H +# if defined(WINCE) +# define NEED_ERRNO +# define NEED_SEM +# endif +# if defined(_UWIN) || defined(__MINGW32__) +# define HAVE_MODE_T +# endif +#endif + +/* + * + */ + +#if PTW32_LEVEL >= PTW32_LEVEL_MAX +#ifdef NEED_ERRNO +#include "need_errno.h" +#else +#include <errno.h> +#endif +#endif /* PTW32_LEVEL >= PTW32_LEVEL_MAX */ + +/* + * Several systems don't define some error numbers. + */ +#ifndef ENOTSUP +# define ENOTSUP 48 /* This is the value in Solaris. */ +#endif + +#ifndef ETIMEDOUT +# define ETIMEDOUT 10060 /* This is the value in winsock.h. */ +#endif + +#ifndef ENOSYS +# define ENOSYS 140 /* Semi-arbitrary value */ +#endif + +#ifndef EDEADLK +# ifdef EDEADLOCK +# define EDEADLK EDEADLOCK +# else +# define EDEADLK 36 /* This is the value in MSVC. */ +# endif +#endif + +#include <sched.h> + +/* + * To avoid including windows.h we define only those things that we + * actually need from it. + */ +#ifndef PTW32_INCLUDE_WINDOWS_H +#ifndef HANDLE +# define PTW32__HANDLE_DEF +# define HANDLE void * +#endif +#ifndef DWORD +# define PTW32__DWORD_DEF +# define DWORD unsigned long +#endif +#endif + +#ifndef HAVE_STRUCT_TIMESPEC +#define HAVE_STRUCT_TIMESPEC 1 +struct timespec { + long tv_sec; + long tv_nsec; +}; +#endif /* HAVE_STRUCT_TIMESPEC */ + +#ifndef SIG_BLOCK +#define SIG_BLOCK 0 +#endif /* SIG_BLOCK */ + +#ifndef SIG_UNBLOCK +#define SIG_UNBLOCK 1 +#endif /* SIG_UNBLOCK */ + +#ifndef SIG_SETMASK +#define SIG_SETMASK 2 +#endif /* SIG_SETMASK */ + +#ifdef __cplusplus +extern "C" +{ +#endif /* __cplusplus */ + +/* + * ------------------------------------------------------------- + * + * POSIX 1003.1-2001 Options + * ========================= + * + * Options are normally set in <unistd.h>, which is not provided + * with pthreads-win32. + * + * For conformance with the Single Unix Specification (version 3), all of the + * options below are defined, and have a value of either -1 (not supported) + * or 200112L (supported). + * + * These options can neither be left undefined nor have a value of 0, because + * either indicates that sysconf(), which is not implemented, may be used at + * runtime to check the status of the option. + * + * _POSIX_THREADS (== 200112L) + * If == 200112L, you can use threads + * + * _POSIX_THREAD_ATTR_STACKSIZE (== 200112L) + * If == 200112L, you can control the size of a thread's + * stack + * pthread_attr_getstacksize + * pthread_attr_setstacksize + * + * _POSIX_THREAD_ATTR_STACKADDR (== -1) + * If == 200112L, you can allocate and control a thread's + * stack. If not supported, the following functions + * will return ENOSYS, indicating they are not + * supported: + * pthread_attr_getstackaddr + * pthread_attr_setstackaddr + * + * _POSIX_THREAD_PRIORITY_SCHEDULING (== -1) + * If == 200112L, you can use realtime scheduling. + * This option indicates that the behaviour of some + * implemented functions conforms to the additional TPS + * requirements in the standard. E.g. rwlocks favour + * writers over readers when threads have equal priority. + * + * _POSIX_THREAD_PRIO_INHERIT (== -1) + * If == 200112L, you can create priority inheritance + * mutexes. + * pthread_mutexattr_getprotocol + + * pthread_mutexattr_setprotocol + + * + * _POSIX_THREAD_PRIO_PROTECT (== -1) + * If == 200112L, you can create priority ceiling mutexes + * Indicates the availability of: + * pthread_mutex_getprioceiling + * pthread_mutex_setprioceiling + * pthread_mutexattr_getprioceiling + * pthread_mutexattr_getprotocol + + * pthread_mutexattr_setprioceiling + * pthread_mutexattr_setprotocol + + * + * _POSIX_THREAD_PROCESS_SHARED (== -1) + * If set, you can create mutexes and condition + * variables that can be shared with another + * process.If set, indicates the availability + * of: + * pthread_mutexattr_getpshared + * pthread_mutexattr_setpshared + * pthread_condattr_getpshared + * pthread_condattr_setpshared + * + * _POSIX_THREAD_SAFE_FUNCTIONS (== 200112L) + * If == 200112L you can use the special *_r library + * functions that provide thread-safe behaviour + * + * _POSIX_READER_WRITER_LOCKS (== 200112L) + * If == 200112L, you can use read/write locks + * + * _POSIX_SPIN_LOCKS (== 200112L) + * If == 200112L, you can use spin locks + * + * _POSIX_BARRIERS (== 200112L) + * If == 200112L, you can use barriers + * + * + These functions provide both 'inherit' and/or + * 'protect' protocol, based upon these macro + * settings. + * + * ------------------------------------------------------------- + */ + +/* + * POSIX Options + */ +#undef _POSIX_THREADS +#define _POSIX_THREADS 200112L + +#undef _POSIX_READER_WRITER_LOCKS +#define _POSIX_READER_WRITER_LOCKS 200112L + +#undef _POSIX_SPIN_LOCKS +#define _POSIX_SPIN_LOCKS 200112L + +#undef _POSIX_BARRIERS +#define _POSIX_BARRIERS 200112L + +#undef _POSIX_THREAD_SAFE_FUNCTIONS +#define _POSIX_THREAD_SAFE_FUNCTIONS 200112L + +#undef _POSIX_THREAD_ATTR_STACKSIZE +#define _POSIX_THREAD_ATTR_STACKSIZE 200112L + +/* + * The following options are not supported + */ +#undef _POSIX_THREAD_ATTR_STACKADDR +#define _POSIX_THREAD_ATTR_STACKADDR -1 + +#undef _POSIX_THREAD_PRIO_INHERIT +#define _POSIX_THREAD_PRIO_INHERIT -1 + +#undef _POSIX_THREAD_PRIO_PROTECT +#define _POSIX_THREAD_PRIO_PROTECT -1 + +/* TPS is not fully supported. */ +#undef _POSIX_THREAD_PRIORITY_SCHEDULING +#define _POSIX_THREAD_PRIORITY_SCHEDULING -1 + +#undef _POSIX_THREAD_PROCESS_SHARED +#define _POSIX_THREAD_PROCESS_SHARED -1 + + +/* + * POSIX 1003.1-2001 Limits + * =========================== + * + * These limits are normally set in <limits.h>, which is not provided with + * pthreads-win32. + * + * PTHREAD_DESTRUCTOR_ITERATIONS + * Maximum number of attempts to destroy + * a thread's thread-specific data on + * termination (must be at least 4) + * + * PTHREAD_KEYS_MAX + * Maximum number of thread-specific data keys + * available per process (must be at least 128) + * + * PTHREAD_STACK_MIN + * Minimum supported stack size for a thread + * + * PTHREAD_THREADS_MAX + * Maximum number of threads supported per + * process (must be at least 64). + * + * SEM_NSEMS_MAX + * The maximum number of semaphores a process can have. + * (must be at least 256) + * + * SEM_VALUE_MAX + * The maximum value a semaphore can have. + * (must be at least 32767) + * + */ +#undef _POSIX_THREAD_DESTRUCTOR_ITERATIONS +#define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4 + +#undef PTHREAD_DESTRUCTOR_ITERATIONS +#define PTHREAD_DESTRUCTOR_ITERATIONS _POSIX_THREAD_DESTRUCTOR_ITERATIONS + +#undef _POSIX_THREAD_KEYS_MAX +#define _POSIX_THREAD_KEYS_MAX 128 + +#undef PTHREAD_KEYS_MAX +#define PTHREAD_KEYS_MAX _POSIX_THREAD_KEYS_MAX + +#undef PTHREAD_STACK_MIN +#define PTHREAD_STACK_MIN 0 + +#undef _POSIX_THREAD_THREADS_MAX +#define _POSIX_THREAD_THREADS_MAX 64 + + /* Arbitrary value */ +#undef PTHREAD_THREADS_MAX +#define PTHREAD_THREADS_MAX 2019 + +#undef _POSIX_SEM_NSEMS_MAX +#define _POSIX_SEM_NSEMS_MAX 256 + + /* Arbitrary value */ +#undef SEM_NSEMS_MAX +#define SEM_NSEMS_MAX 1024 + +#undef _POSIX_SEM_VALUE_MAX +#define _POSIX_SEM_VALUE_MAX 32767 + +#undef SEM_VALUE_MAX +#define SEM_VALUE_MAX INT_MAX + + +#if __GNUC__ && ! defined (__declspec) +# error Please upgrade your GNU compiler to one that supports __declspec. +#endif + +/* + * When building the DLL code, you should define PTW32_BUILD so that + * the variables/functions are exported correctly. When using the DLL, + * do NOT define PTW32_BUILD, and then the variables/functions will + * be imported correctly. + */ +#ifndef PTW32_STATIC_LIB +# ifdef PTW32_BUILD +# define PTW32_DLLPORT __declspec (dllexport) +# else +# define PTW32_DLLPORT __declspec (dllimport) +# endif +#else +# define PTW32_DLLPORT +#endif + +/* + * The Open Watcom C/C++ compiler uses a non-standard calling convention + * that passes function args in registers unless __cdecl is explicitly specified + * in exposed function prototypes. + * + * We force all calls to cdecl even though this could slow Watcom code down + * slightly. If you know that the Watcom compiler will be used to build both + * the DLL and application, then you can probably define this as a null string. + * Remember that pthread.h (this file) is used for both the DLL and application builds. + */ +#define PTW32_CDECL __cdecl + +#if defined(_UWIN) && PTW32_LEVEL >= PTW32_LEVEL_MAX +# include <sys/types.h> +#else +/* + * Generic handle type - intended to extend uniqueness beyond + * that available with a simple pointer. It should scale for either + * IA-32 or IA-64. + */ +typedef struct { + void * p; /* Pointer to actual object */ + unsigned int x; /* Extra information - reuse count etc */ +} ptw32_handle_t; + +typedef ptw32_handle_t pthread_t; +typedef struct pthread_attr_t_ * pthread_attr_t; +typedef struct pthread_once_t_ pthread_once_t; +typedef struct pthread_key_t_ * pthread_key_t; +typedef struct pthread_mutex_t_ * pthread_mutex_t; +typedef struct pthread_mutexattr_t_ * pthread_mutexattr_t; +typedef struct pthread_cond_t_ * pthread_cond_t; +typedef struct pthread_condattr_t_ * pthread_condattr_t; +#endif +typedef struct pthread_rwlock_t_ * pthread_rwlock_t; +typedef struct pthread_rwlockattr_t_ * pthread_rwlockattr_t; +typedef struct pthread_spinlock_t_ * pthread_spinlock_t; +typedef struct pthread_barrier_t_ * pthread_barrier_t; +typedef struct pthread_barrierattr_t_ * pthread_barrierattr_t; + +/* + * ==================== + * ==================== + * POSIX Threads + * ==================== + * ==================== + */ + +enum { +/* + * pthread_attr_{get,set}detachstate + */ + PTHREAD_CREATE_JOINABLE = 0, /* Default */ + PTHREAD_CREATE_DETACHED = 1, + +/* + * pthread_attr_{get,set}inheritsched + */ + PTHREAD_INHERIT_SCHED = 0, + PTHREAD_EXPLICIT_SCHED = 1, /* Default */ + +/* + * pthread_{get,set}scope + */ + PTHREAD_SCOPE_PROCESS = 0, + PTHREAD_SCOPE_SYSTEM = 1, /* Default */ + +/* + * pthread_setcancelstate paramters + */ + PTHREAD_CANCEL_ENABLE = 0, /* Default */ + PTHREAD_CANCEL_DISABLE = 1, + +/* + * pthread_setcanceltype parameters + */ + PTHREAD_CANCEL_ASYNCHRONOUS = 0, + PTHREAD_CANCEL_DEFERRED = 1, /* Default */ + +/* + * pthread_mutexattr_{get,set}pshared + * pthread_condattr_{get,set}pshared + */ + PTHREAD_PROCESS_PRIVATE = 0, + PTHREAD_PROCESS_SHARED = 1, + +/* + * pthread_barrier_wait + */ + PTHREAD_BARRIER_SERIAL_THREAD = -1 +}; + +/* + * ==================== + * ==================== + * Cancelation + * ==================== + * ==================== + */ +#define PTHREAD_CANCELED ((void *) -1) + + +/* + * ==================== + * ==================== + * Once Key + * ==================== + * ==================== + */ +#define PTHREAD_ONCE_INIT { PTW32_FALSE, 0, 0, 0} + +struct pthread_once_t_ +{ + int done; /* indicates if user function has been executed */ + void * lock; + int reserved1; + int reserved2; +}; + + +/* + * ==================== + * ==================== + * Object initialisers + * ==================== + * ==================== + */ +#define PTHREAD_MUTEX_INITIALIZER ((pthread_mutex_t) -1) +#define PTHREAD_RECURSIVE_MUTEX_INITIALIZER ((pthread_mutex_t) -2) +#define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER ((pthread_mutex_t) -3) + +/* + * Compatibility with LinuxThreads + */ +#define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP PTHREAD_RECURSIVE_MUTEX_INITIALIZER +#define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP PTHREAD_ERRORCHECK_MUTEX_INITIALIZER + +#define PTHREAD_COND_INITIALIZER ((pthread_cond_t) -1) + +#define PTHREAD_RWLOCK_INITIALIZER ((pthread_rwlock_t) -1) + +#define PTHREAD_SPINLOCK_INITIALIZER ((pthread_spinlock_t) -1) + + +/* + * Mutex types. + */ +enum +{ + /* Compatibility with LinuxThreads */ + PTHREAD_MUTEX_FAST_NP, + PTHREAD_MUTEX_RECURSIVE_NP, + PTHREAD_MUTEX_ERRORCHECK_NP, + PTHREAD_MUTEX_TIMED_NP = PTHREAD_MUTEX_FAST_NP, + PTHREAD_MUTEX_ADAPTIVE_NP = PTHREAD_MUTEX_FAST_NP, + /* For compatibility with POSIX */ + PTHREAD_MUTEX_NORMAL = PTHREAD_MUTEX_FAST_NP, + PTHREAD_MUTEX_RECURSIVE = PTHREAD_MUTEX_RECURSIVE_NP, + PTHREAD_MUTEX_ERRORCHECK = PTHREAD_MUTEX_ERRORCHECK_NP, + PTHREAD_MUTEX_DEFAULT = PTHREAD_MUTEX_NORMAL +}; + + +typedef struct ptw32_cleanup_t ptw32_cleanup_t; + +#if defined(_MSC_VER) +/* Disable MSVC 'anachronism used' warning */ +#pragma warning( disable : 4229 ) +#endif + +typedef void (* PTW32_CDECL ptw32_cleanup_callback_t)(void *); + +#if defined(_MSC_VER) +#pragma warning( default : 4229 ) +#endif + +struct ptw32_cleanup_t +{ + ptw32_cleanup_callback_t routine; + void *arg; + struct ptw32_cleanup_t *prev; +}; + +#ifdef __CLEANUP_SEH + /* + * WIN32 SEH version of cancel cleanup. + */ + +#define pthread_cleanup_push( _rout, _arg ) \ + { \ + ptw32_cleanup_t _cleanup; \ + \ + _cleanup.routine = (ptw32_cleanup_callback_t)(_rout); \ + _cleanup.arg = (_arg); \ + __try \ + { \ + +#define pthread_cleanup_pop( _execute ) \ + } \ + __finally \ + { \ + if( _execute || AbnormalTermination()) \ + { \ + (*(_cleanup.routine))( _cleanup.arg ); \ + } \ + } \ + } + +#else /* __CLEANUP_SEH */ + +#ifdef __CLEANUP_C + + /* + * C implementation of PThreads cancel cleanup + */ + +#define pthread_cleanup_push( _rout, _arg ) \ + { \ + ptw32_cleanup_t _cleanup; \ + \ + ptw32_push_cleanup( &_cleanup, (ptw32_cleanup_callback_t) (_rout), (_arg) ); \ + +#define pthread_cleanup_pop( _execute ) \ + (void) ptw32_pop_cleanup( _execute ); \ + } + +#else /* __CLEANUP_C */ + +#ifdef __CLEANUP_CXX + + /* + * C++ version of cancel cleanup. + * - John E. Bossom. + */ + + class PThreadCleanup { + /* + * PThreadCleanup + * + * Purpose + * This class is a C++ helper class that is + * used to implement pthread_cleanup_push/ + * pthread_cleanup_pop. + * The destructor of this class automatically + * pops the pushed cleanup routine regardless + * of how the code exits the scope + * (i.e. such as by an exception) + */ + ptw32_cleanup_callback_t cleanUpRout; + void * obj; + int executeIt; + + public: + PThreadCleanup() : + cleanUpRout( 0 ), + obj( 0 ), + executeIt( 0 ) + /* + * No cleanup performed + */ + { + } + + PThreadCleanup( + ptw32_cleanup_callback_t routine, + void * arg ) : + cleanUpRout( routine ), + obj( arg ), + executeIt( 1 ) + /* + * Registers a cleanup routine for 'arg' + */ + { + } + + ~PThreadCleanup() + { + if ( executeIt && ((void *) cleanUpRout != (void *) 0) ) + { + (void) (*cleanUpRout)( obj ); + } + } + + void execute( int exec ) + { + executeIt = exec; + } + }; + + /* + * C++ implementation of PThreads cancel cleanup; + * This implementation takes advantage of a helper + * class who's destructor automatically calls the + * cleanup routine if we exit our scope weirdly + */ +#define pthread_cleanup_push( _rout, _arg ) \ + { \ + PThreadCleanup cleanup((ptw32_cleanup_callback_t)(_rout), \ + (void *) (_arg) ); + +#define pthread_cleanup_pop( _execute ) \ + cleanup.execute( _execute ); \ + } + +#else + +#error ERROR [__FILE__, line __LINE__]: Cleanup type undefined. + +#endif /* __CLEANUP_CXX */ + +#endif /* __CLEANUP_C */ + +#endif /* __CLEANUP_SEH */ + +/* + * =============== + * =============== + * Methods + * =============== + * =============== + */ + +/* + * PThread Attribute Functions + */ +PTW32_DLLPORT int PTW32_CDECL pthread_attr_init (pthread_attr_t * attr); + +PTW32_DLLPORT int PTW32_CDECL pthread_attr_destroy (pthread_attr_t * attr); + +PTW32_DLLPORT int PTW32_CDECL pthread_attr_getdetachstate (const pthread_attr_t * attr, + int *detachstate); + +PTW32_DLLPORT int PTW32_CDECL pthread_attr_getstackaddr (const pthread_attr_t * attr, + void **stackaddr); + +PTW32_DLLPORT int PTW32_CDECL pthread_attr_getstacksize (const pthread_attr_t * attr, + size_t * stacksize); + +PTW32_DLLPORT int PTW32_CDECL pthread_attr_setdetachstate (pthread_attr_t * attr, + int detachstate); + +PTW32_DLLPORT int PTW32_CDECL pthread_attr_setstackaddr (pthread_attr_t * attr, + void *stackaddr); + +PTW32_DLLPORT int PTW32_CDECL pthread_attr_setstacksize (pthread_attr_t * attr, + size_t stacksize); + +PTW32_DLLPORT int PTW32_CDECL pthread_attr_getschedparam (const pthread_attr_t *attr, + struct sched_param *param); + +PTW32_DLLPORT int PTW32_CDECL pthread_attr_setschedparam (pthread_attr_t *attr, + const struct sched_param *param); + +PTW32_DLLPORT int PTW32_CDECL pthread_attr_setschedpolicy (pthread_attr_t *, + int); + +PTW32_DLLPORT int PTW32_CDECL pthread_attr_getschedpolicy (pthread_attr_t *, + int *); + +PTW32_DLLPORT int PTW32_CDECL pthread_attr_setinheritsched(pthread_attr_t * attr, + int inheritsched); + +PTW32_DLLPORT int PTW32_CDECL pthread_attr_getinheritsched(pthread_attr_t * attr, + int * inheritsched); + +PTW32_DLLPORT int PTW32_CDECL pthread_attr_setscope (pthread_attr_t *, + int); + +PTW32_DLLPORT int PTW32_CDECL pthread_attr_getscope (const pthread_attr_t *, + int *); + +/* + * PThread Functions + */ +PTW32_DLLPORT int PTW32_CDECL pthread_create (pthread_t * tid, + const pthread_attr_t * attr, + void *(*start) (void *), + void *arg); + +PTW32_DLLPORT int PTW32_CDECL pthread_detach (pthread_t tid); + +PTW32_DLLPORT int PTW32_CDECL pthread_equal (pthread_t t1, + pthread_t t2); + +PTW32_DLLPORT void PTW32_CDECL pthread_exit (void *value_ptr); + +PTW32_DLLPORT int PTW32_CDECL pthread_join (pthread_t thread, + void **value_ptr); + +PTW32_DLLPORT pthread_t PTW32_CDECL pthread_self (void); + +PTW32_DLLPORT int PTW32_CDECL pthread_cancel (pthread_t thread); + +PTW32_DLLPORT int PTW32_CDECL pthread_setcancelstate (int state, + int *oldstate); + +PTW32_DLLPORT int PTW32_CDECL pthread_setcanceltype (int type, + int *oldtype); + +PTW32_DLLPORT void PTW32_CDECL pthread_testcancel (void); + +PTW32_DLLPORT int PTW32_CDECL pthread_once (pthread_once_t * once_control, + void (*init_routine) (void)); + +#if PTW32_LEVEL >= PTW32_LEVEL_MAX +PTW32_DLLPORT ptw32_cleanup_t * PTW32_CDECL ptw32_pop_cleanup (int execute); + +PTW32_DLLPORT void PTW32_CDECL ptw32_push_cleanup (ptw32_cleanup_t * cleanup, + void (*routine) (void *), + void *arg); +#endif /* PTW32_LEVEL >= PTW32_LEVEL_MAX */ + +/* + * Thread Specific Data Functions + */ +PTW32_DLLPORT int PTW32_CDECL pthread_key_create (pthread_key_t * key, + void (*destructor) (void *)); + +PTW32_DLLPORT int PTW32_CDECL pthread_key_delete (pthread_key_t key); + +PTW32_DLLPORT int PTW32_CDECL pthread_setspecific (pthread_key_t key, + const void *value); + +PTW32_DLLPORT void * PTW32_CDECL pthread_getspecific (pthread_key_t key); + + +/* + * Mutex Attribute Functions + */ +PTW32_DLLPORT int PTW32_CDECL pthread_mutexattr_init (pthread_mutexattr_t * attr); + +PTW32_DLLPORT int PTW32_CDECL pthread_mutexattr_destroy (pthread_mutexattr_t * attr); + +PTW32_DLLPORT int PTW32_CDECL pthread_mutexattr_getpshared (const pthread_mutexattr_t + * attr, + int *pshared); + +PTW32_DLLPORT int PTW32_CDECL pthread_mutexattr_setpshared (pthread_mutexattr_t * attr, + int pshared); + +PTW32_DLLPORT int PTW32_CDECL pthread_mutexattr_settype (pthread_mutexattr_t * attr, int kind); +PTW32_DLLPORT int PTW32_CDECL pthread_mutexattr_gettype (pthread_mutexattr_t * attr, int *kind); + +/* + * Barrier Attribute Functions + */ +PTW32_DLLPORT int PTW32_CDECL pthread_barrierattr_init (pthread_barrierattr_t * attr); + +PTW32_DLLPORT int PTW32_CDECL pthread_barrierattr_destroy (pthread_barrierattr_t * attr); + +PTW32_DLLPORT int PTW32_CDECL pthread_barrierattr_getpshared (const pthread_barrierattr_t + * attr, + int *pshared); + +PTW32_DLLPORT int PTW32_CDECL pthread_barrierattr_setpshared (pthread_barrierattr_t * attr, + int pshared); + +/* + * Mutex Functions + */ +PTW32_DLLPORT int PTW32_CDECL pthread_mutex_init (pthread_mutex_t * mutex, + const pthread_mutexattr_t * attr); + +PTW32_DLLPORT int PTW32_CDECL pthread_mutex_destroy (pthread_mutex_t * mutex); + +PTW32_DLLPORT int PTW32_CDECL pthread_mutex_lock (pthread_mutex_t * mutex); + +PTW32_DLLPORT int PTW32_CDECL pthread_mutex_timedlock(pthread_mutex_t *mutex, + const struct timespec *abstime); + +PTW32_DLLPORT int PTW32_CDECL pthread_mutex_trylock (pthread_mutex_t * mutex); + +PTW32_DLLPORT int PTW32_CDECL pthread_mutex_unlock (pthread_mutex_t * mutex); + +/* + * Spinlock Functions + */ +PTW32_DLLPORT int PTW32_CDECL pthread_spin_init (pthread_spinlock_t * lock, int pshared); + +PTW32_DLLPORT int PTW32_CDECL pthread_spin_destroy (pthread_spinlock_t * lock); + +PTW32_DLLPORT int PTW32_CDECL pthread_spin_lock (pthread_spinlock_t * lock); + +PTW32_DLLPORT int PTW32_CDECL pthread_spin_trylock (pthread_spinlock_t * lock); + +PTW32_DLLPORT int PTW32_CDECL pthread_spin_unlock (pthread_spinlock_t * lock); + +/* + * Barrier Functions + */ +PTW32_DLLPORT int PTW32_CDECL pthread_barrier_init (pthread_barrier_t * barrier, + const pthread_barrierattr_t * attr, + unsigned int count); + +PTW32_DLLPORT int PTW32_CDECL pthread_barrier_destroy (pthread_barrier_t * barrier); + +PTW32_DLLPORT int PTW32_CDECL pthread_barrier_wait (pthread_barrier_t * barrier); + +/* + * Condition Variable Attribute Functions + */ +PTW32_DLLPORT int PTW32_CDECL pthread_condattr_init (pthread_condattr_t * attr); + +PTW32_DLLPORT int PTW32_CDECL pthread_condattr_destroy (pthread_condattr_t * attr); + +PTW32_DLLPORT int PTW32_CDECL pthread_condattr_getpshared (const pthread_condattr_t * attr, + int *pshared); + +PTW32_DLLPORT int PTW32_CDECL pthread_condattr_setpshared (pthread_condattr_t * attr, + int pshared); + +/* + * Condition Variable Functions + */ +PTW32_DLLPORT int PTW32_CDECL pthread_cond_init (pthread_cond_t * cond, + const pthread_condattr_t * attr); + +PTW32_DLLPORT int PTW32_CDECL pthread_cond_destroy (pthread_cond_t * cond); + +PTW32_DLLPORT int PTW32_CDECL pthread_cond_wait (pthread_cond_t * cond, + pthread_mutex_t * mutex); + +PTW32_DLLPORT int PTW32_CDECL pthread_cond_timedwait (pthread_cond_t * cond, + pthread_mutex_t * mutex, + const struct timespec *abstime); + +PTW32_DLLPORT int PTW32_CDECL pthread_cond_signal (pthread_cond_t * cond); + +PTW32_DLLPORT int PTW32_CDECL pthread_cond_broadcast (pthread_cond_t * cond); + +/* + * Scheduling + */ +PTW32_DLLPORT int PTW32_CDECL pthread_setschedparam (pthread_t thread, + int policy, + const struct sched_param *param); + +PTW32_DLLPORT int PTW32_CDECL pthread_getschedparam (pthread_t thread, + int *policy, + struct sched_param *param); + +PTW32_DLLPORT int PTW32_CDECL pthread_setconcurrency (int); + +PTW32_DLLPORT int PTW32_CDECL pthread_getconcurrency (void); + +/* + * Read-Write Lock Functions + */ +PTW32_DLLPORT int PTW32_CDECL pthread_rwlock_init(pthread_rwlock_t *lock, + const pthread_rwlockattr_t *attr); + +PTW32_DLLPORT int PTW32_CDECL pthread_rwlock_destroy(pthread_rwlock_t *lock); + +PTW32_DLLPORT int PTW32_CDECL pthread_rwlock_tryrdlock(pthread_rwlock_t *); + +PTW32_DLLPORT int PTW32_CDECL pthread_rwlock_trywrlock(pthread_rwlock_t *); + +PTW32_DLLPORT int PTW32_CDECL pthread_rwlock_rdlock(pthread_rwlock_t *lock); + +PTW32_DLLPORT int PTW32_CDECL pthread_rwlock_timedrdlock(pthread_rwlock_t *lock, + const struct timespec *abstime); + +PTW32_DLLPORT int PTW32_CDECL pthread_rwlock_wrlock(pthread_rwlock_t *lock); + +PTW32_DLLPORT int PTW32_CDECL pthread_rwlock_timedwrlock(pthread_rwlock_t *lock, + const struct timespec *abstime); + +PTW32_DLLPORT int PTW32_CDECL pthread_rwlock_unlock(pthread_rwlock_t *lock); + +PTW32_DLLPORT int PTW32_CDECL pthread_rwlockattr_init (pthread_rwlockattr_t * attr); + +PTW32_DLLPORT int PTW32_CDECL pthread_rwlockattr_destroy (pthread_rwlockattr_t * attr); + +PTW32_DLLPORT int PTW32_CDECL pthread_rwlockattr_getpshared (const pthread_rwlockattr_t * attr, + int *pshared); + +PTW32_DLLPORT int PTW32_CDECL pthread_rwlockattr_setpshared (pthread_rwlockattr_t * attr, + int pshared); + +#if PTW32_LEVEL >= PTW32_LEVEL_MAX - 1 + +/* + * Signal Functions. Should be defined in <signal.h> but MSVC and MinGW32 + * already have signal.h that don't define these. + */ +PTW32_DLLPORT int PTW32_CDECL pthread_kill(pthread_t thread, int sig); + +/* + * Non-portable functions + */ + +/* + * Compatibility with Linux. + */ +PTW32_DLLPORT int PTW32_CDECL pthread_mutexattr_setkind_np(pthread_mutexattr_t * attr, + int kind); +PTW32_DLLPORT int PTW32_CDECL pthread_mutexattr_getkind_np(pthread_mutexattr_t * attr, + int *kind); + +/* + * Possibly supported by other POSIX threads implementations + */ +PTW32_DLLPORT int PTW32_CDECL pthread_delay_np (struct timespec * interval); +PTW32_DLLPORT int PTW32_CDECL pthread_num_processors_np(void); + +/* + * Useful if an application wants to statically link + * the lib rather than load the DLL at run-time. + */ +PTW32_DLLPORT int PTW32_CDECL pthread_win32_process_attach_np(void); +PTW32_DLLPORT int PTW32_CDECL pthread_win32_process_detach_np(void); +PTW32_DLLPORT int PTW32_CDECL pthread_win32_thread_attach_np(void); +PTW32_DLLPORT int PTW32_CDECL pthread_win32_thread_detach_np(void); + +/* + * Features that are auto-detected at load/run time. + */ +PTW32_DLLPORT int PTW32_CDECL pthread_win32_test_features_np(int); +enum ptw32_features { + PTW32_SYSTEM_INTERLOCKED_COMPARE_EXCHANGE = 0x0001, /* System provides it. */ + PTW32_ALERTABLE_ASYNC_CANCEL = 0x0002 /* Can cancel blocked threads. */ +}; + +/* + * Register a system time change with the library. + * Causes the library to perform various functions + * in response to the change. Should be called whenever + * the application's top level window receives a + * WM_TIMECHANGE message. It can be passed directly to + * pthread_create() as a new thread if desired. + */ +PTW32_DLLPORT void * PTW32_CDECL pthread_timechange_handler_np(void *); + +#endif /*PTW32_LEVEL >= PTW32_LEVEL_MAX - 1 */ + +#if PTW32_LEVEL >= PTW32_LEVEL_MAX + +/* + * Returns the Win32 HANDLE for the POSIX thread. + */ +PTW32_DLLPORT HANDLE PTW32_CDECL pthread_getw32threadhandle_np(pthread_t thread); + + +/* + * Protected Methods + * + * This function blocks until the given WIN32 handle + * is signaled or pthread_cancel had been called. + * This function allows the caller to hook into the + * PThreads cancel mechanism. It is implemented using + * + * WaitForMultipleObjects + * + * on 'waitHandle' and a manually reset WIN32 Event + * used to implement pthread_cancel. The 'timeout' + * argument to TimedWait is simply passed to + * WaitForMultipleObjects. + */ +PTW32_DLLPORT int PTW32_CDECL pthreadCancelableWait (HANDLE waitHandle); +PTW32_DLLPORT int PTW32_CDECL pthreadCancelableTimedWait (HANDLE waitHandle, + DWORD timeout); + +#endif /* PTW32_LEVEL >= PTW32_LEVEL_MAX */ + +/* + * Thread-Safe C Runtime Library Mappings. + */ +#ifndef _UWIN +# if defined(NEED_ERRNO) + PTW32_DLLPORT int * PTW32_CDECL _errno( void ); +# else +# ifndef errno +# if (defined(_MT) || defined(_DLL)) + __declspec(dllimport) extern int * __cdecl _errno(void); +# define errno (*_errno()) +# endif +# endif +# endif +#endif + +/* + * WIN32 C runtime library had been made thread-safe + * without affecting the user interface. Provide + * mappings from the UNIX thread-safe versions to + * the standard C runtime library calls. + * Only provide function mappings for functions that + * actually exist on WIN32. + */ + +#if !defined(__MINGW32__) +#define strtok_r( _s, _sep, _lasts ) \ + ( *(_lasts) = strtok( (_s), (_sep) ) ) +#endif /* !__MINGW32__ */ + +#define asctime_r( _tm, _buf ) \ + ( strcpy( (_buf), asctime( (_tm) ) ), \ + (_buf) ) + +#define ctime_r( _clock, _buf ) \ + ( strcpy( (_buf), ctime( (_clock) ) ), \ + (_buf) ) + +#define gmtime_r( _clock, _result ) \ + ( *(_result) = *gmtime( (_clock) ), \ + (_result) ) + +#define localtime_r( _clock, _result ) \ + ( *(_result) = *localtime( (_clock) ), \ + (_result) ) + +#define rand_r( _seed ) \ + ( _seed == _seed? rand() : rand() ) + + +/* + * Some compiler environments don't define some things. + */ +#if defined(__BORLANDC__) +# define _ftime ftime +# define _timeb timeb +#endif + +#ifdef __cplusplus + +/* + * Internal exceptions + */ +class ptw32_exception {}; +class ptw32_exception_cancel : public ptw32_exception {}; +class ptw32_exception_exit : public ptw32_exception {}; + +#endif + +#if PTW32_LEVEL >= PTW32_LEVEL_MAX + +/* FIXME: This is only required if the library was built using SEH */ +/* + * Get internal SEH tag + */ +PTW32_DLLPORT DWORD PTW32_CDECL ptw32_get_exception_services_code(void); + +#endif /* PTW32_LEVEL >= PTW32_LEVEL_MAX */ + +#ifndef PTW32_BUILD + +#ifdef __CLEANUP_SEH + +/* + * Redefine the SEH __except keyword to ensure that applications + * propagate our internal exceptions up to the library's internal handlers. + */ +#define __except( E ) \ + __except( ( GetExceptionCode() == ptw32_get_exception_services_code() ) \ + ? EXCEPTION_CONTINUE_SEARCH : ( E ) ) + +#endif /* __CLEANUP_SEH */ + +#ifdef __CLEANUP_CXX + +/* + * Redefine the C++ catch keyword to ensure that applications + * propagate our internal exceptions up to the library's internal handlers. + */ +#ifdef _MSC_VER + /* + * WARNING: Replace any 'catch( ... )' with 'PtW32CatchAll' + * if you want Pthread-Win32 cancelation and pthread_exit to work. + */ + +#ifndef PtW32NoCatchWarn + +#pragma message("Specify \"/DPtW32NoCatchWarn\" compiler flag to skip this message.") +#pragma message("------------------------------------------------------------------") +#pragma message("When compiling applications with MSVC++ and C++ exception handling:") +#pragma message(" Replace any 'catch( ... )' in routines called from POSIX threads") +#pragma message(" with 'PtW32CatchAll' or 'CATCHALL' if you want POSIX thread") +#pragma message(" cancelation and pthread_exit to work. For example:") +#pragma message("") +#pragma message(" #ifdef PtW32CatchAll") +#pragma message(" PtW32CatchAll") +#pragma message(" #else") +#pragma message(" catch(...)") +#pragma message(" #endif") +#pragma message(" {") +#pragma message(" /* Catchall block processing */") +#pragma message(" }") +#pragma message("------------------------------------------------------------------") + +#endif + +#define PtW32CatchAll \ + catch( ptw32_exception & ) { throw; } \ + catch( ... ) + +#else /* _MSC_VER */ + +#define catch( E ) \ + catch( ptw32_exception & ) { throw; } \ + catch( E ) + +#endif /* _MSC_VER */ + +#endif /* __CLEANUP_CXX */ + +#endif /* ! PTW32_BUILD */ + +#ifdef __cplusplus +} /* End of extern "C" */ +#endif /* __cplusplus */ + +#ifdef PTW32__HANDLE_DEF +# undef HANDLE +#endif +#ifdef PTW32__DWORD_DEF +# undef DWORD +#endif + +#undef PTW32_LEVEL +#undef PTW32_LEVEL_MAX + +#endif /* ! RC_INVOKED */ + +#endif /* PTHREAD_H */ |