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    Threaded::synchronized

    (PECL pthreads >= 2.0.0)

    Threaded::synchronized — Synchronization

    説明

    public Threaded::synchronized(Closure $block, mixed ...$args): mixed

    Executes the block while retaining the referenced objects synchronization lock for the calling context

    パラメータ

    block

    The block of code to execute

    args

    Variable length list of arguments to use as function arguments to the block

    戻り値

    The return value from the block

    例

    例1 Synchronizing

    <?php
    class My extends Thread {
    public function     run() {
    $this->synchronized(function($thread){
    if (!    $thread->done)
    $thread->wait();
    },     $this);
    }
    }
    $my = new My();
    $my->start();
    $my->synchronized(function($thread){
    $thread->done = true;
    $thread->notify();
    },     $my);
    var_dump($my->join());
    ?>

    上の例の出力は以下となります。

    bool(true)

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    User Contributed Notes 1 note

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    john dot wellesz at teaser dot fr
    10 years ago
    Threaded::synchronized() allows you to safely set or read synchronization conditions and act upon them (using ::wait() and ::notify()) knowing that only one call to synchronized() on the referenced object can be executed at a particular time, other calls from different thread contexts will block until the path is cleared by a call to ::wait() inside your ::Synchronized() closure.
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