142 lines
5.7 KiB
HTML
142 lines
5.7 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
|
||
<HTML>
|
||
<HEAD>
|
||
<META HTTP-EQUIV="CONTENT-TYPE" CONTENT="text/html; charset=utf-8">
|
||
<TITLE>"PTHREAD_BARRIERATTR_DESTROY"(P) manual page</TITLE>
|
||
<META NAME="GENERATOR" CONTENT="OpenOffice.org 1.1.3 (Linux)">
|
||
<META NAME="CREATED" CONTENT="20050504;11502600">
|
||
<META NAME="CHANGED" CONTENT="20050505;18032300">
|
||
<!-- manual page source format generated by PolyglotMan v3.2, -->
|
||
<!-- available at http://polyglotman.sourceforge.net/ -->
|
||
</HEAD>
|
||
<BODY LANG="en-GB" BGCOLOR="#ffffff" DIR="LTR">
|
||
<H4>POSIX Threads for Windows – REFERENCE - <A HREF="http://sources.redhat.com/pthreads-win32">Pthreads-w32</A></H4>
|
||
<P><A HREF="index.html">Reference Index</A></P>
|
||
<P><A HREF="#toc">Table of Contents</A></P>
|
||
<H2><A HREF="#toc0" NAME="sect0">Name</A></H2>
|
||
<P>pthread_barrierattr_destroy, pthread_barrierattr_init - destroy
|
||
and initialize the barrier attributes object (<B>ADVANCED REALTIME
|
||
THREADS</B>)
|
||
</P>
|
||
<H2><A HREF="#toc1" NAME="sect1">Synopsis</A></H2>
|
||
<P><B>#include <pthread.h> </B>
|
||
</P>
|
||
<P>i<B>nt pthread_barrierattr_destroy(pthread_barrierattr_t *</B><I>attr</I><B>);
|
||
<BR>int pthread_barrierattr_init(pthread_barrierattr_t *</B><I>attr</I><B>);
|
||
</B>
|
||
</P>
|
||
<H2><A HREF="#toc2" NAME="sect2">Description</A></H2>
|
||
<P>The <B>pthread_barrierattr_destroy</B> function shall destroy a
|
||
barrier attributes object. A destroyed <I>attr</I> attributes object
|
||
can be reinitialized using <B>pthread_barrierattr_init</B> ; the
|
||
results of otherwise referencing the object after it has been
|
||
destroyed are undefined. An implementation may cause
|
||
<B>pthread_barrierattr_destroy</B> to set the object referenced by
|
||
<I>attr</I> to an invalid value.
|
||
</P>
|
||
<P>The <B>pthread_barrierattr_init</B> function shall initialize a
|
||
barrier attributes object <I>attr</I> with the default value for all
|
||
of the attributes defined by the implementation.
|
||
</P>
|
||
<P>Results are undefined if <B>pthread_barrierattr_init</B> is called
|
||
specifying an already initialized <I>attr</I> attributes object.
|
||
</P>
|
||
<P>After a barrier attributes object has been used to initialize one
|
||
or more barriers, any function affecting the attributes object
|
||
(including destruction) shall not affect any previously initialized
|
||
barrier.
|
||
</P>
|
||
<H2><A HREF="#toc3" NAME="sect3">Return Value</A></H2>
|
||
<P>If successful, the <B>pthread_barrierattr_destroy</B> and
|
||
<B>pthread_barrierattr_init</B> functions shall return zero;
|
||
otherwise, an error number shall be returned to indicate the error.
|
||
</P>
|
||
<H2><A HREF="#toc4" NAME="sect4">Errors</A></H2>
|
||
<P>The <B>pthread_barrierattr_destroy</B> function may fail if:
|
||
</P>
|
||
<DL>
|
||
<DT><B>EINVAL</B>
|
||
</DT><DD STYLE="margin-bottom: 0.5cm">
|
||
The value specified by <I>attr</I> is invalid.
|
||
</DD></DL>
|
||
<P>
|
||
The <B>pthread_barrierattr_init</B> function shall fail if:
|
||
</P>
|
||
<DL>
|
||
<DT><B>ENOMEM</B>
|
||
</DT><DD STYLE="margin-bottom: 0.5cm">
|
||
Insufficient memory exists to initialize the barrier attributes
|
||
object.
|
||
</DD></DL>
|
||
<P>
|
||
These functions shall not return an error code of [EINTR].
|
||
</P>
|
||
<P><I>The following sections are informative.</I>
|
||
</P>
|
||
<H2><A HREF="#toc5" NAME="sect5">Examples</A></H2>
|
||
<P>None.
|
||
</P>
|
||
<H2><A HREF="#toc6" NAME="sect6">Application Usage</A></H2>
|
||
<P>The <B>pthread_barrierattr_destroy</B> and
|
||
<B>pthread_barrierattr_init</B> functions are part of the Barriers
|
||
option and need not be provided on all implementations.
|
||
</P>
|
||
<P><B>Pthreads-w32</B> defines <B>_POSIX_BARRIERS</B> to indicate
|
||
that these routines are implemented and may be used.</P>
|
||
<H2><A HREF="#toc7" NAME="sect7">Rationale</A></H2>
|
||
<P>None.
|
||
</P>
|
||
<H2><A HREF="#toc8" NAME="sect8">Future Directions</A></H2>
|
||
<P>None.
|
||
</P>
|
||
<H2><A HREF="#toc9" NAME="sect9">See Also</A></H2>
|
||
<P><A HREF="pthread_barrierattr_setpshared.html"><B>pthread_barrierattr_getpshared</B>(3)</A>
|
||
<B>,</B> <A HREF="pthread_barrierattr_setpshared.html"><B>pthread_barrierattr_setpshared</B>(3)</A>
|
||
, the Base Definitions volume of IEEE Std 1003.1-2001,
|
||
<I><pthread.h></I>.
|
||
</P>
|
||
<H2><A HREF="#toc10" NAME="sect10">Copyright</A></H2>
|
||
<P>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 <A HREF="http://www.opengroup.org/unix/online.html">http://www.opengroup.org/unix/online.html</A>
|
||
.
|
||
</P>
|
||
<P>Modified by Ross Johnson for use with <A HREF="http://sources.redhat.com/pthreads-win32">Pthreads-w32</A>.</P>
|
||
<HR>
|
||
<P><A NAME="toc"></A><B>Table of Contents</B></P>
|
||
<UL>
|
||
<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect0" NAME="toc0">Name</A>
|
||
</P>
|
||
<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect1" NAME="toc1">Synopsis</A>
|
||
</P>
|
||
<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect2" NAME="toc2">Description</A>
|
||
</P>
|
||
<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect3" NAME="toc3">Return
|
||
Value</A>
|
||
</P>
|
||
<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect4" NAME="toc4">Errors</A>
|
||
</P>
|
||
<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect5" NAME="toc5">Examples</A>
|
||
</P>
|
||
<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect6" NAME="toc6">Application
|
||
Usage</A>
|
||
</P>
|
||
<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect7" NAME="toc7">Rationale</A>
|
||
</P>
|
||
<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect8" NAME="toc8">Future
|
||
Directions</A>
|
||
</P>
|
||
<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect9" NAME="toc9">See
|
||
Also</A>
|
||
</P>
|
||
<LI><P><A HREF="#sect10" NAME="toc10">Copyright</A>
|
||
</P>
|
||
</UL>
|
||
</BODY>
|
||
</HTML>
|