|This version of this document is no longer maintained. For the latest documentation, see http://www.qnx.com/developers/docs.|
Destroy a read-write lock
#include <pthread.h> int pthread_rwlock_destroy( pthread_rwlock_t* rwl );
- A pointer to a pthread_rwlock_t object that you want to destroy.
Use the -l c option to qcc to link against this library. This library is usually included automatically.
The pthread_rwlock_destroy() function destroys the read-write lock referenced by rwl, and releases the system resources used by the lock. You can destroy the read-write lock if one of the following is true:
- no thread has a active shared or exclusive lock on rwl
- the calling thread has an active exclusive lock on rwl.
|After successfully destroying a read-write lock, don't use it again without reinitializing it by calling pthread_rwlock_init().|
- The read-write lock rwl is still in use. The calling thread doesn't have an exclusive lock.