/**
* Run a QueueWorker loop.
* Runs a Queue Worker process which will try to find unassigned jobs in the queue
* which it may run and try to fetch and execute them.
*/
public function runworker()
{
// Enable Garbage Collector (PHP >= 5.3)
if (function_exists('gc_enable')) {
gc_enable();
}
// Prevent mid-job termination (if platform supported)
if (function_exists('pcntl_signal')) {
pcntl_signal(SIGTERM, array(&$this, "_exit"));
$this->exit = false;
}
$starttime = time();
$group = null;
if (isset($this->params['group']) && !empty($this->params['group'])) {
$group = $this->params['group'];
}
while (!$this->exit) {
if ($this->_verbose) {
$this->out('Looking for Job....');
}
$data = $this->QueuedTask->requestJob($this->getTaskConf(), $group);
if ($this->QueuedTask->exit === true) {
$this->exit = true;
} else {
if ($data !== false) {
$this->out('Running Job of type "' . $data['jobtype'] . '"');
$taskname = 'queue' . $data['jobtype'];
$jobData = unserialize($data['data']);
if (!$this->{$taskname}->canRun($jobData)) {
$this->QueuedTask->requeueJob($data['id'], $this->getTaskConf($taskname, 'timeout'));
$this->out('Job could not be run, requeued.');
} else {
$return = $this->{$taskname}->run($jobData);
if ($return == true) {
$this->QueuedTask->markJobDone($data['id']);
$this->out('Job Finished.');
} else {
$failureMessage = null;
if (isset($this->{$taskname}->failureMessage) && !empty($this->{$taskname}->failureMessage)) {
$failureMessage = $this->{$taskname}->failureMessage;
}
$this->QueuedTask->markJobFailed($data['id'], $failureMessage);
$this->out('Job did not finish, requeued.');
}
}
} elseif (Configure::read('queue.exitwhennothingtodo')) {
$this->out('nothing to do, exiting.');
$this->exit = true;
} else {
if ($this->_verbose) {
$this->out('nothing to do, sleeping.');
}
sleep(Configure::read('queue.sleeptime'));
}
// check if we are over the maximum runtime and end processing if so.
if (Configure::read('queue.workermaxruntime') != 0 && time() - $starttime >= Configure::read('queue.workermaxruntime')) {
$this->exit = true;
$this->out('Reached runtime of ' . (time() - $starttime) . ' Seconds (Max ' . Configure::read('queue.workermaxruntime') . '), terminating.');
}
if ($this->exit || rand(0, 100) > 100 - Configure::read('queue.gcprop')) {
$this->out('Performing Old job cleanup.');
$this->QueuedTask->cleanOldJobs();
}
if ($this->_verbose) {
$this->hr();
}
}
}
}
