SyncSemaphore (class)
The SyncSemaphore class
Introduction
(PECL sync >= 1.0.0)
A cross-platform, native implementation of named and unnamed sempahore objects.
A semaphore restricts access to a limited resource to a limited number of instances. Semaphores differ from mutexes in that they can allow more than one instance to access a resource at one time while a mutex only allows one instance at a time.
Class synopsis
SyncSemaphore {
/* Methods */
public __construct ([ string $name [, integer $initialval = 1 [, bool $autounlock = true ]]] )
public bool lock ([ integer $wait = -1 ] )
public bool unlock ([ integer &$prevcount ] )
}
Table of Contents
- SyncSemaphore::__construct — Constructs a new SyncSemaphore object
- SyncSemaphore::lock — Decreases the count of the semaphore or waits
- SyncSemaphore::unlock — Increases the count of the semaphore
← SyncMutex::unlock
SyncSemaphore::__construct →
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