/**
* The primary loop for a worker.
*
* Every $interval (seconds), the scheduled queue will be checked for jobs
* that should be pushed to Resque.
*
* @param int $interval
* How often to check schedules.
*/
public function work($interval = null)
{
if ($interval !== null) {
$this->interval = $interval;
}
Resque::redis()->set('worker:delayed:started', time());
$this->updateProcLine('Starting');
while (true) {
$this->handleDelayedItems();
$this->sleep();
}
}
/**
* Stop tracking the status of a job.
*/
public function stop()
{
Resque::redis()->del((string) $this);
}
/**
* Return an object describing the job this worker is currently working on.
*
* @return object Object with details of current job.
*/
public function job()
{
$job = Resque::redis()->get('worker:' . $this);
if (!$job) {
return array();
} else {
return json_decode($job, true);
}
}
/**
* Re-queue the current job.
*
* @param int $enqueuedAt
* Enqueue timestamp
* @return string the job id
*/
public function recreate($enqueuedAt = 0, $isLast = false)
{
if ($isLast) {
$queue = Constant::$LAST_RETRY_QUEUE;
} else {
$queue = $this->queue;
}
$status = new Resque_Job_Status($this->payload['id']);
$this->payload['args'][0]['id'] = $this->payload['id'];
if (Resque::redis()->exists('worker:delayed:started')) {
$enqueuedAt += (int) time();
$jobItem = array_merge($this->payload, array('queue' => $queue));
unset($jobItem['id']);
call_user_func_array('ResqueScheduler::delayedPush', array($enqueuedAt, $jobItem));
} else {
self::create($queue, $this->payload['class'], $this->payload['args'], $status->isTracking());
}
Resque_Event::trigger('afterRetry', array('payload' => $this->payload, 'enqueuedAt' => $enqueuedAt));
return $this->payload['id'];
}
/**
* Expire a statistic with the given time.
*
* @param string $stat
* The name of the statistic to expire.
* @param integer $timeout
* After the timeout has expired, the key will automatically be deleted.
* @return boolean True if successful, false if not.
*/
public static function expire($stat, $timeout)
{
return (bool) Resque::redis()->expire('stat:' . $stat, $timeout);
}
/**
* Pop a job off the delayed queue for a given timestamp.
*
* @param DateTime|int $timestamp
* Instance of DateTime or UNIX timestamp.
* @return array Matching job at timestamp.
*/
public static function nextItemForTimestamp($timestamp)
{
$timestamp = self::getTimestamp($timestamp);
$key = 'delayed:' . $timestamp;
$item = json_decode(Resque::redis()->lpop($key), true);
self::cleanupTimestamp($key, $timestamp);
return $item;
}
/**
* List the pending jobs in queue
*
* @return array the pending jobs information in JSON format
*/
public function getPendingJobsInQueue($queue)
{
return Resque::redis()->lrange('queue:' . $queue, 0, -1);
}