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

成功时返回 true，或者在失败时返回 false。

示例

示例 #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