int
     pthread_rwlock_destroy(pthread_rwlock_t *lock);

DESCRIPTION

     The pthread_rwlock_destroy() function is used to destroy a read/write
     lock previously created with pthread_rwlock_init().

RETURN VALUES

     If successful, the pthread_rwlock_destroy() function will return zero.
     Otherwise an error number will be returned to indicate the error.

SEE ALSO

     pthread_rwlock_init(3)

STANDARDS

     The pthread_rwlock_destroy() function is expected to conform to Version 2
     of the Single UNIX Specification (``SUSv2'').

ERRORS

     The pthread_rwlock_destroy() function will fail if:

     [EPERM]            The caller does not have the privilege to perform the
                        operation.

     The pthread_rwlock_destroy() function may fail if:

     [EBUSY]            The system has detected an attempt to destroy the
                        object referenced by lock while it is locked.

     [EINVAL]           The value specified by lock is invalid.

HISTORY

     The pthread_rwlock_destroy() function first appeared in FreeBSD 3.0.

BSD                             August 4, 1998                             BSD