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PTHREAD_RWLOCKATTR(3)	 BSD Library Functions Manual	 PTHREAD_RWLOCKATTR(3)

NAME
     pthread_rwlockattr_init, pthread_rwlockattr_destroy — initialize or
     destroy read/write lock attributes

LIBRARY
     POSIX Threads Library (libpthread, -lpthread)

SYNOPSIS
     #include <pthread.h>

     int
     pthread_rwlockattr_init(pthread_rwlockattr_t *attr);

     int
     pthread_rwlockattr_destroy(pthread_rwlockattr_t *attr);

DESCRIPTION
     The pthread_rwlockattr_init() function is used to initialize a read/write
     lock attributes object.

     The pthread_rwlockattr_destroy() function is used to destroy a read/write
     lock attribute object previously created with pthread_rwlockattr_init().

RETURN VALUES
     If successful, the pthread_rwlockattr_init() and
     pthread_rwlockattr_destroy() functions return zero.  Otherwise an error
     number will be returned to indicate the error.

ERRORS
     pthread_rwlockattr_init() shall fail if:

     [ENOMEM]		Insufficient memory exists to initialize the
			read/write lock attributes object.

     pthread_rwlockattr_init() and pthread_rwlockattr_destroy() may fail if:

     [EINVAL]		The value specified by attr is invalid.

SEE ALSO
     pthread_rwlock_init(3)

STANDARDS
     Both functions conform to IEEE Std 1003.1-2001 (“POSIX.1”).

BSD				 July 9, 2010				   BSD

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