Linux 2.6 - man page for pthread_rwlockattr_init (linux section 3posix)
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PTHREAD_RWLOCKATTR_DESTROY(P) POSIX Programmer's Manual PTHREAD_RWLOCKATTR_DESTROY(P)
pthread_rwlockattr_destroy, pthread_rwlockattr_init - destroy and initialize the
read-write lock attributes object
int pthread_rwlockattr_destroy(pthread_rwlockattr_t *attr);
int pthread_rwlockattr_init(pthread_rwlockattr_t *attr);
The pthread_rwlockattr_destroy() function shall destroy a read-write lock attributes
object. A destroyed attr attributes object can be reinitialized using pthread_rwlock-
attr_init(); the results of otherwise referencing the object after it has been destroyed
are undefined. An implementation may cause pthread_rwlockattr_destroy() to set the object
referenced by attr to an invalid value.
The pthread_rwlockattr_init() function shall initialize a read-write lock attributes
object attr with the default value for all of the attributes defined by the implementa-
Results are undefined if pthread_rwlockattr_init() is called specifying an already ini-
tialized attr attributes object.
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.
If successful, the pthread_rwlockattr_destroy() and pthread_rwlockattr_init() functions
shall return zero; otherwise, an error number shall be returned to indicate the error.
The pthread_rwlockattr_destroy() function may fail if:
EINVAL The value specified by attr is invalid.
The pthread_rwlockattr_init() function shall fail if:
ENOMEM Insufficient memory exists to initialize the read-write lock attributes object.
These functions shall not return an error code of [EINTR].
The following sections are informative.
pthread_rwlock_destroy() , pthread_rwlockattr_getpshared() , pthread_rwlockattr_setp-
shared() , the Base Definitions volume of IEEE Std 1003.1-2001, <pthread.h>
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 orig-
inal Standard can be obtained online at http://www.opengroup.org/unix/online.html .
IEEE/The Open Group 2003 PTHREAD_RWLOCKATTR_DESTROY(P)
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