From 3562e78743202e43aec8727005182a2558117eca Mon Sep 17 00:00:00 2001 From: marha Date: Sun, 28 Jun 2009 22:07:26 +0000 Subject: Checked in the following released items: xkeyboard-config-1.4.tar.gz ttf-bitstream-vera-1.10.tar.gz font-alias-1.0.1.tar.gz font-sun-misc-1.0.0.tar.gz font-sun-misc-1.0.0.tar.gz font-sony-misc-1.0.0.tar.gz font-schumacher-misc-1.0.0.tar.gz font-mutt-misc-1.0.0.tar.gz font-misc-misc-1.0.0.tar.gz font-misc-meltho-1.0.0.tar.gz font-micro-misc-1.0.0.tar.gz font-jis-misc-1.0.0.tar.gz font-isas-misc-1.0.0.tar.gz font-dec-misc-1.0.0.tar.gz font-daewoo-misc-1.0.0.tar.gz font-cursor-misc-1.0.0.tar.gz font-arabic-misc-1.0.0.tar.gz font-winitzki-cyrillic-1.0.0.tar.gz font-misc-cyrillic-1.0.0.tar.gz font-cronyx-cyrillic-1.0.0.tar.gz font-screen-cyrillic-1.0.1.tar.gz font-xfree86-type1-1.0.1.tar.gz font-adobe-utopia-type1-1.0.1.tar.gz font-ibm-type1-1.0.0.tar.gz font-bitstream-type1-1.0.0.tar.gz font-bitstream-speedo-1.0.0.tar.gz font-bh-ttf-1.0.0.tar.gz font-bh-type1-1.0.0.tar.gz font-bitstream-100dpi-1.0.0.tar.gz font-bh-lucidatypewriter-100dpi-1.0.0.tar.gz font-bh-100dpi-1.0.0.tar.gz font-adobe-utopia-100dpi-1.0.1.tar.gz font-adobe-100dpi-1.0.0.tar.gz font-util-1.0.1.tar.gz font-bitstream-75dpi-1.0.0.tar.gz font-bh-lucidatypewriter-75dpi-1.0.0.tar.gz font-adobe-utopia-75dpi-1.0.1.tar.gz font-bh-75dpi-1.0.0.tar.gz bdftopcf-1.0.1.tar.gz font-adobe-75dpi-1.0.0.tar.gz mkfontscale-1.0.6.tar.gz openssl-0.9.8k.tar.gz bigreqsproto-1.0.2.tar.gz xtrans-1.2.2.tar.gz resourceproto-1.0.2.tar.gz inputproto-1.4.4.tar.gz compositeproto-0.4.tar.gz damageproto-1.1.0.tar.gz zlib-1.2.3.tar.gz xkbcomp-1.0.5.tar.gz freetype-2.3.9.tar.gz pthreads-w32-2-8-0-release.tar.gz pixman-0.12.0.tar.gz kbproto-1.0.3.tar.gz evieext-1.0.2.tar.gz fixesproto-4.0.tar.gz recordproto-1.13.2.tar.gz randrproto-1.2.2.tar.gz scrnsaverproto-1.1.0.tar.gz renderproto-0.9.3.tar.gz xcmiscproto-1.1.2.tar.gz fontsproto-2.0.2.tar.gz xextproto-7.0.3.tar.gz xproto-7.0.14.tar.gz libXdmcp-1.0.2.tar.gz libxkbfile-1.0.5.tar.gz libfontenc-1.0.4.tar.gz libXfont-1.3.4.tar.gz libX11-1.1.5.tar.gz libXau-1.0.4.tar.gz libxcb-1.1.tar.gz xorg-server-1.5.3.tar.gz --- pthreads/manual/pthread_barrier_init.html | 200 ++++++++++++++++++++++++++++++ 1 file changed, 200 insertions(+) create mode 100644 pthreads/manual/pthread_barrier_init.html (limited to 'pthreads/manual/pthread_barrier_init.html') diff --git a/pthreads/manual/pthread_barrier_init.html b/pthreads/manual/pthread_barrier_init.html new file mode 100644 index 000000000..065c1296f --- /dev/null +++ b/pthreads/manual/pthread_barrier_init.html @@ -0,0 +1,200 @@ + + + + + "PTHREAD_BARRIER_DESTROY"(P) manual page + + + + + + + + +

POSIX Threads for Windows – REFERENCE - Pthreads-w32

+

Reference Index

+

Table of Contents

+

Name

+

pthread_barrier_destroy, pthread_barrier_init - destroy and +initialize a barrier object (ADVANCED REALTIME THREADS) +

+

Synopsis

+

#include <pthread.h> +

+

int pthread_barrier_destroy(pthread_barrier_t *barrier); +
int pthread_barrier_init(pthread_barrier_t *restrict barrier, +const pthread_barrierattr_t *restrict attr, unsigned +count); +

+

Description

+

The pthread_barrier_destroy function shall destroy the +barrier referenced by barrier and release any resources used +by the barrier. The effect of subsequent use of the barrier is +undefined until the barrier is reinitialized by another call to +pthread_barrier_init . An implementation may use this function +to set barrier to an invalid value. The results are undefined +if pthread_barrier_destroy is called when any thread is +blocked on the barrier, or if this function is called with an +uninitialized barrier. +

+

The pthread_barrier_init function shall allocate any +resources required to use the barrier referenced by barrier +and shall initialize the barrier with attributes referenced by attr. +If attr is NULL, the default barrier attributes shall be used; +the effect is the same as passing the address of a default barrier +attributes object. The results are undefined if pthread_barrier_init +is called when any thread is blocked on the barrier (that is, has not +returned from the pthread_barrier_wait(3) +call). The results are undefined if a barrier is used without first +being initialized. The results are undefined if pthread_barrier_init +is called specifying an already initialized barrier. +

+

The count argument specifies the number of threads that +must call pthread_barrier_wait(3) +before any of them successfully return from the call. The value +specified by count must be greater than zero. +

+

If the pthread_barrier_init function fails, the barrier +shall not be initialized and the contents of barrier are +undefined. +

+

Only the object referenced by barrier may be used for +performing synchronization. The result of referring to copies of that +object in calls to pthread_barrier_destroy or +pthread_barrier_wait(3) +is undefined.

+

Return Value

+

Upon successful completion, these functions shall return zero; +otherwise, an error number shall be returned to indicate the error. +

+

Errors

+

The pthread_barrier_destroy function may fail if: +

+
+
EBUSY +
+ The implementation has detected an attempt to destroy a barrier + while it is in use (for example, while being used in a + pthread_barrier_wait(3) + call) by another thread. +
+ EINVAL +
+ The value specified by barrier is invalid. +
+

+The pthread_barrier_init function shall fail if: +

+
+
EAGAIN +
+ The system lacks the necessary resources to initialize another + barrier. +
+ EINVAL +
+ The value specified by count is equal to zero. +
+ ENOMEM +
+ Insufficient memory exists to initialize the barrier. +
+

+The pthread_barrier_init function may fail if: +

+
+
EBUSY +
+ The implementation has detected an attempt to reinitialize a barrier + while it is in use (for example, while being used in a + pthread_barrier_wait(3) + call) by another thread. +
+ EINVAL +
+ The value specified by attr is invalid. +
+

+These functions shall not return an error code of [EINTR]. +

+

The following sections are informative. +

+

Examples

+

None. +

+

Application Usage

+

The pthread_barrier_destroy and pthread_barrier_init +functions are part of the Barriers option and need not be provided on +all implementations. +

+

Pthreads-w32 defines _POSIX_BARRIERS to indicate +that these routines are implemented and may be used.

+

Rationale

+

None. +

+

Future Directions

+

None. +

+

Known Bugs

+
+
In + pthreads-win32, + pthread_barrier_wait(3) + may deadlock if the number of running threads able to wait on the + barrier object exceeds the value given as the count + parameter in pthread_barrier_init. +
+

+See Also

+

pthread_barrier_wait(3) +, the Base Definitions volume of IEEE Std 1003.1-2001, +<pthread.h> +

+

Copyright

+

Portions of this text are reprinted and reproduced in electronic +form from IEEE Std 1003.1, 2003 Edition, Standard for Information +Technology -- Portable Operating System Interface (POSIX), The Open +Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the +Institute of Electrical and Electronics Engineers, Inc and The Open +Group. In the event of any discrepancy between this version and the +original IEEE and The Open Group Standard, the original IEEE and The +Open Group Standard is the referee document. The original Standard +can be obtained online at http://www.opengroup.org/unix/online.html +. +

+

Modified by Ross Johnson for use with Pthreads-w32.

+
+

Table of Contents

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