Worker.php
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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2015 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: yunwuxin <448901948@qq.com>
// +----------------------------------------------------------------------
namespace think\queue;
use Exception;
use think\Hook;
use think\Queue;
class Worker
{
/**
* 执行下个任务
* @param string $queue
* @param int $delay
* @param int $sleep
* @param int $maxTries
* @return array
*/
public function pop($queue = null, $delay = 0, $sleep = 3, $maxTries = 0)
{
$job = $this->getNextJob($queue);
if (!is_null($job)) {
return $this->process($job, $maxTries, $delay);
}
$this->sleep($sleep);
return ['job' => null, 'failed' => false];
}
/**
* 获取下个任务
* @param string $queue
* @return Job
*/
protected function getNextJob($queue)
{
if (is_null($queue)) {
return Queue::pop();
}
foreach (explode(',', $queue) as $queue) {
if (!is_null($job = Queue::pop($queue))) {
return $job;
}
}
}
/**
* Process a given job from the queue.
* @param \think\queue\Job $job
* @param int $maxTries
* @param int $delay
* @return array
* @throws Exception
*/
public function process(Job $job, $maxTries = 0, $delay = 0)
{
if ($maxTries > 0 && $job->attempts() > $maxTries) {
return $this->logFailedJob($job);
}
try {
$job->fire();
return ['job' => $job, 'failed' => false];
} catch (Exception $e) {
if (!$job->isDeleted()) {
$job->release($delay);
}
throw $e;
}
}
/**
* Log a failed job into storage.
* @param \Think\Queue\Job $job
* @return array
*/
protected function logFailedJob(Job $job)
{
if (Hook::listen('queue.failed', $job, null, true)) {
$job->delete();
$job->failed();
}
return ['job' => $job, 'failed' => true];
}
/**
* Sleep the script for a given number of seconds.
* @param int $seconds
* @return void
*/
public function sleep($seconds)
{
sleep($seconds);
}
}