pthread_rwlock_destroy - Destroys a read-write lock object.
DECthreads POSIX 1003.1c Library (libpthread.so)
Address of the read-write lock object to be destroyed.
This routine destroys the specified read-write lock object by uninitializing it, and should be called when the object is no longer referenced in your program. After this routine is called, DECthreads may reclaim internal storage used by the specified read-write lock object. The effect of subsequent use of the lock is undefined until the lock is reinitialized by another call to pthread_rwlock_init.
It is illegal to destroy a locked read-write lock.
The results of this routine are unpredictable if the specified read-write lock object does not currently exist or is not initialized.
If an error condition occurs, this routine returns an integer value indicating the type of error. Possible return values are as follows: Successful completion. An attempt was made to destroy the object referenced by rwlock while it is locked or referenced. The value specified by attr is invalid.
Manuals: Guide to DECthreads and Programmer's Guide