SyncSemaphore::unlock

(PECL sync >= 1.0.0)

SyncSemaphore::unlock — Increases the count of the semaphore

说明

public SyncSemaphore::unlock ([ int &$prevcount ] ) : bool

Increases the count of a SyncSemaphore object.

参数

prevcount: Returns the previous count of the semaphore.

返回值

A boolean of TRUE if the unlock operation was successful, FALSE otherwise.

范例

Example #1 SyncSemaphore::unlock() example


<?php
$semaphore = new SyncSemaphore("LimitedResource_2clients", 2);

if (!$semaphore->lock(3000))
{
    echo "Unable to lock semaphore.";

    exit();
}

/* ... */

$semaphore->unlock();
?>

参见

SyncSemaphore::lock() - Decreases the count of the semaphore or waits