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Coro::RWLock.3pm
Langue: en
Version: 2007-05-26 (mandriva - 01/05/08)
Section: 3 (Bibliothèques de fonctions)
Sommaire
NAME
Coro::RWLock - reader/write locksSYNOPSIS
use Coro::RWLock; $lck = new Coro::RWLock; $lck->rdlock; # acquire read lock $lck->unlock;
DESCRIPTION
This module implements reader/write locks. A read can be acquired for read by many coroutines in parallel as long as no writer has locked it (shared access). A single write lock can be acquired when no readers exist. RWLocks basically allow many concurrent readers (without writers) OR a single writer (but no readers).- $l = new Coro::RWLock;
- Create a new reader/writer lock.
- $l->rdlock
- Acquire a read lock.
- $l->tryrdlock
- Try to acquire a read lock.
- $l->wrlock
- Acquire a write lock.
- $l->trywrlock
- Try to acquire a write lock.
- $l->unlock
- Give up the rwlock.
AUTHOR
Marc Lehmann <schmorp@schmorp.de> http://home.schmorp.de/
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