Php/docs/mutex.trylock

• PHP Manual
• Mutex
• Attempt to Acquire Mutex

Mutex::trylock

(PECL pthreads < 3.0.0)

Mutex::trylock — Attempt to Acquire Mutex

警告 The Mutex class has been removed in pthreads v3.

説明

final public static Mutex::trylock ( int $mutex ) : bool

Attempt to lock the Mutex for the caller without blocking if the Mutex is owned (locked) by another Thread.

パラメータ

mutex

A handle returned by a previous call to Mutex::create().

返り値

A boolean indication of success.

例

例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);?>

上の例の出力は以下となります。

bool(true)
bool(true)