Waits for an exclusive lock


(PECL sync >= 1.0.0)

SyncMutex::lockWaits for an exclusive lock

Описание

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.

Список параметров

wait

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

Возвращаемые значения

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

Примеры

Пример #1 SyncMutex::lock() example

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

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

    exit();
}

/* ... */

$mutex->unlock();
?>

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