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# Threaded::wait

(PECL pthreads >= 2.0.0)

Threaded::wait — Synchronization

### Description

public Threaded::wait(int `$timeout` = ?): bool

Will cause the calling context to wait for notification from the referenced object

### Parameters

`timeout`

  An optional timeout in microseconds

### Return Values

Returns `true` on success or `false` on failure.

### Examples

Example #1 Notifications and Waiting

    <?phpclass My extends Thread {    public function run() {        /** cause this thread to wait **/        $this->synchronized(function($thread){            if (!$thread->done)                $thread->wait();        }, $this);    }}$my = new My();$my->start();/** send notification to the waiting thread **/$my->synchronized(function($thread){    $thread->done = true;    $thread->notify();}, $my);var_dump($my->join());?>

The above example will output:

    bool(true)