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+.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved
+.TH "PTHREAD_RWLOCKATTR_DESTROY" P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
+.\" pthread_rwlockattr_destroy
+.SH NAME
+pthread_rwlockattr_destroy, pthread_rwlockattr_init \- destroy and
+initialize the read\-write lock attributes
+object
+.SH SYNOPSIS
+.LP
+\fB#include <pthread.h>
+.br
+.sp
+int pthread_rwlockattr_destroy(pthread_rwlockattr_t\fP \fI*attr\fP\fB);
+.br
+int pthread_rwlockattr_init(pthread_rwlockattr_t\fP \fI*attr\fP\fB);
+\fP
+\fB
+.br
+\fP
+.SH DESCRIPTION
+.LP
+The \fIpthread_rwlockattr_destroy\fP() function shall destroy a read-write
+lock attributes object. A destroyed \fIattr\fP
+attributes object can be reinitialized using \fIpthread_rwlockattr_init\fP();
+the results of otherwise referencing the object
+after it has been destroyed are undefined. An implementation may cause
+\fIpthread_rwlockattr_destroy\fP() to set the object
+referenced by \fIattr\fP to an invalid value.
+.LP
+The \fIpthread_rwlockattr_init\fP() function shall initialize a read-write
+lock attributes object \fIattr\fP with the default
+value for all of the attributes defined by the implementation.
+.LP
+Results are undefined if \fIpthread_rwlockattr_init\fP() is called
+specifying an already initialized \fIattr\fP attributes
+object.
+.LP
+After a read-write lock attributes object has been used to initialize
+one or more read-write locks, any function affecting the
+attributes object (including destruction) shall not affect any previously
+initialized read-write locks.
+.SH RETURN VALUE
+.LP
+If successful, the \fIpthread_rwlockattr_destroy\fP() and \fIpthread_rwlockattr_init\fP()
+functions shall return zero;
+otherwise, an error number shall be returned to indicate the error.
+.SH ERRORS
+.LP
+The \fIpthread_rwlockattr_destroy\fP() function may fail if:
+.TP 7
+.B EINVAL
+The value specified by \fIattr\fP is invalid.
+.sp
+.LP
+The \fIpthread_rwlockattr_init\fP() function shall fail if:
+.TP 7
+.B ENOMEM
+Insufficient memory exists to initialize the read-write lock attributes
+object.
+.sp
+.LP
+These functions shall not return an error code of [EINTR].
+.LP
+\fIThe following sections are informative.\fP
+.SH EXAMPLES
+.LP
+None.
+.SH APPLICATION USAGE
+.LP
+None.
+.SH RATIONALE
+.LP
+None.
+.SH FUTURE DIRECTIONS
+.LP
+None.
+.SH SEE ALSO
+.LP
+\fIpthread_rwlock_destroy\fP() , \fIpthread_rwlockattr_getpshared\fP()
+, \fIpthread_rwlockattr_setpshared\fP() , the Base Definitions volume
+of
+IEEE\ Std\ 1003.1-2001, \fI<pthread.h>\fP
+.SH 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 .