Mutex::trylock
(PECL pthreads < 3.0.0)
Mutex::trylock — Attempt to Acquire Mutex
Warning
The Mutex class has been removed in pthreads v3.
Description
final
public
static
Mutex::trylock
(
int
$mutex
) : boolAttempt to lock the Mutex for the caller without blocking if the Mutex is owned (locked) by another Thread.
Parameters
-
mutex -
A handle returned by a previous call to Mutex::create().
Return Values
A boolean indication of success.
Examples
Example #1 Mutex Locking and Unlocking
<?php
/** You cannot use the "new" keyword, a Mutex is not a PHP object **/
$mutex = Mutex::create();
/** You can now try to lock the mutex in any context **/
var_dump(Mutex::trylock($mutex));
/** It is invalid to attempt to destroy a locked Mutex **/
var_dump(Mutex::unlock($mutex));
/** Always destroy mutex you have created **/
Mutex::destroy($mutex);
?>
The above example will output:
bool(true) bool(true)
add a note
User Contributed Notes
There are no user contributed notes for this page.
