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SyncSemaphore::unlock

(PECL sync >= 1.0.0)

SyncSemaphore::unlockIncreases the count of the semaphore

说明

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

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();
?>

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