RWLock(3pm)
NAME
Coro::RWLock - reader/write locks
SYNOPSIS
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/