2004-11-03 13:51:07 +00:00
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.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved
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2007-06-20 22:33:04 +00:00
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.TH "PTHREAD_BARRIERATTR_DESTROY" 3P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
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2004-11-03 13:51:07 +00:00
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.\" pthread_barrierattr_destroy
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2007-09-20 06:03:25 +00:00
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.SH PROLOG
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This manual page is part of the POSIX Programmer's Manual.
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The Linux implementation of this interface may differ (consult
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the corresponding Linux manual page for details of Linux behavior),
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or the interface may not be implemented on Linux.
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2004-11-03 13:51:07 +00:00
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.SH NAME
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pthread_barrierattr_destroy, pthread_barrierattr_init \- destroy and
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initialize the barrier attributes object
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(\fBADVANCED REALTIME THREADS\fP)
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.SH SYNOPSIS
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.LP
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\fB#include <pthread.h>
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.br
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.sp
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int pthread_barrierattr_destroy(pthread_barrierattr_t *\fP\fIattr\fP\fB);
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.br
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int pthread_barrierattr_init(pthread_barrierattr_t *\fP\fIattr\fP\fB);
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\fP
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\fB
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.br
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\fP
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.SH DESCRIPTION
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.LP
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The \fIpthread_barrierattr_destroy\fP() function shall destroy a barrier
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attributes object. A destroyed \fIattr\fP attributes
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object can be reinitialized using \fIpthread_barrierattr_init\fP();
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the results of otherwise referencing the object after it has
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been destroyed are undefined. An implementation may cause \fIpthread_barrierattr_destroy\fP()
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to set the object referenced by
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\fIattr\fP to an invalid value.
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.LP
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The \fIpthread_barrierattr_init\fP() function shall initialize a barrier
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attributes object \fIattr\fP with the default value
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for all of the attributes defined by the implementation.
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.LP
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Results are undefined if \fIpthread_barrierattr_init\fP() is called
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specifying an already initialized \fIattr\fP attributes
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object.
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.LP
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After a barrier attributes object has been used to initialize one
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or more barriers, any function affecting the attributes object
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(including destruction) shall not affect any previously initialized
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barrier.
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.SH RETURN VALUE
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.LP
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If successful, the \fIpthread_barrierattr_destroy\fP() and \fIpthread_barrierattr_init\fP()
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functions shall return zero;
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otherwise, an error number shall be returned to indicate the error.
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.SH ERRORS
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.LP
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The \fIpthread_barrierattr_destroy\fP() function may fail if:
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.TP 7
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.B EINVAL
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The value specified by \fIattr\fP is invalid.
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.sp
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.LP
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The \fIpthread_barrierattr_init\fP() function shall fail if:
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.TP 7
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.B ENOMEM
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Insufficient memory exists to initialize the barrier attributes object.
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.sp
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.LP
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These functions shall not return an error code of [EINTR].
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.LP
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\fIThe following sections are informative.\fP
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.SH EXAMPLES
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.LP
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None.
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.SH APPLICATION USAGE
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.LP
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The \fIpthread_barrierattr_destroy\fP() and \fIpthread_barrierattr_init\fP()
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functions are part of the Barriers option and
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need not be provided on all implementations.
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.SH RATIONALE
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.LP
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None.
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.SH FUTURE DIRECTIONS
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.LP
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None.
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.SH SEE ALSO
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.LP
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2007-09-20 06:11:55 +00:00
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\fIpthread_barrierattr_getpshared\fP(), \fIpthread_barrierattr_setpshared\fP()
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2004-11-03 13:51:07 +00:00
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, the Base Definitions volume of
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IEEE\ Std\ 1003.1-2001, \fI<pthread.h>\fP.
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.SH COPYRIGHT
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Portions of this text are reprinted and reproduced in electronic form
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from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
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-- Portable Operating System Interface (POSIX), The Open Group Base
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Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
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Electrical and Electronics Engineers, Inc and The Open Group. In the
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event of any discrepancy between this version and the original IEEE and
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The Open Group Standard, the original IEEE and The Open Group Standard
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is the referee document. The original Standard can be obtained online at
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http://www.opengroup.org/unix/online.html .
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