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<?php
/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\mutex;
use Closure;
/**
* Trait RetryAcquireTrait.
*
* @author Robert Korulczyk <robert@korulczyk.pl>
* @internal
* @since 2.0.16
*/
trait RetryAcquireTrait
{
/**
* @var int Number of milliseconds between each try in [[acquire()]] until specified timeout times out.
* By default it is 50 milliseconds - it means that [[acquire()]] may try acquire lock up to 20 times per second.
* @since 2.0.16
*/
public $retryDelay = 50;
private function retryAcquire($timeout, Closure $callback)
{
$start = microtime(true);
do {
if ($callback()) {
return true;
}
usleep($this->retryDelay * 1000);
} while (microtime(true) - $start < $timeout);
return false;
}
}