SyncMutex::__construct

(PECL sync >= 1.0.0)

SyncMutex::__construct — Constructs a new SyncMutex object

publicSyncMutex::__construct(string$name = ?)

Constructs a named or unnamed countable mutex.

name: The name of the mutex if this is a named mutex object.
Nota:
If the name already exists, it must be able to be opened by the current user that the process is running as or an exception will be thrown with a meaningless error message.

The new SyncMutex object.

An exception is thrown if the mutex cannot be created or opened.

Ejemplo #1 SyncMutex::__construct() named mutex with lock timeout example

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

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

 exit();
}



$mutex->unlock();
?>

Ejemplo #2 SyncMutex::__construct() unnamed mutex example

<?php
$mutex = new SyncMutex();

$mutex->lock();



$mutex->unlock();
?>