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PHP Manual :: SyncMutex::lock



SyncMutex::__construct || SyncMutex::unlock || SyncMutex || PHP Manual

(PECL sync >= 1.0.0)

SyncMutex::lockWaits for an exclusive lock

Description

public bool SyncMutex::lock ([ integer $wait ] )

Obtains an exclusive lock on a SyncMutex object. If the lock is already acquired, then this increments an internal counter.

Parameters

wait

The number of milliseconds to wait for the exclusive lock. A value of -1 is infinite.

Return Values

A boolean of TRUE if the lock was obtained, FALSE otherwise.

Examples

Example #1 SyncMutex::lock() example

<?php
$mutex 
= new SyncMutex("UniqueName");

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

    exit();
}

/* ... */

$mutex->unlock();
?>

See Also



SyncMutex::__construct || SyncMutex::unlock || SyncMutex || PHP Manual
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