- * This file is subject to the Apple OS-Developed Software exception.
- *
- * Contents:
- *
- * _cupsMutexInit() - Initialize a mutex.
- * _cupsMutexLock() - Lock a mutex.
- * _cupsMutexUnlock() - Unlock a mutex.
- * _cupsRWInit() - Initialize a reader/writer lock.
- * _cupsRWLockRead() - Acquire a reader/writer lock for reading.
- * _cupsRWLockWrite() - Acquire a reader/writer lock for writing.
- * _cupsRWUnlock() - Release a reader/writer lock.
- * _cupsThreadCreate() - Create a thread.