(PECL pthreads >= 2.0.0)
Threaded::synchronized — 同步控制
在发起调用的线程上下文中获取对象同步锁，然后同步执行代码块
block要执行的代码块
...传送给代码块的不定长参数
代码块的返回值
Example #1 同步
<?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());
?>
以上例程会输出：
bool(true)
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.