public function registerEvents()
{
$job =& $this->job;
Event::listen(Event::JOB_PERFORM, function ($event, $_job) use(&$job) {
$job = $_job;
});
}
/**
* Enqueue a job for execution at a given timestamp.
*
* Identical to Resque::enqueue, however the first argument is a timestamp
* (either UNIX timestamp in integer format or an instance of the DateTime
* class in PHP).
*
* @param DateTime|int $at Instance of PHP DateTime object or int of UNIX timestamp.
* @param string $queue The name of the queue to place the job in.
* @param string $class The name of the class that contains the code to execute the job.
* @param array $args Any optional arguments that should be passed when the job is executed.
*/
public static function enqueueAt($at, $queue, $class, $args = array())
{
self::validateJob($class, $queue);
$job = self::jobToHash($queue, $class, $args);
self::delayedPush($at, $job);
Event::trigger('afterSchedule', array('at' => $at, 'queue' => $queue, 'class' => $class, 'args' => $args));
}
/**
* Schedule all of the delayed jobs for a given timestamp.
*
* Searches for all items for a given timestamp, pulls them off the list of
* delayed jobs and pushes them across to Resque.
*
* @param DateTime|int $timestamp Search for any items up to this timestamp to schedule.
*/
public function enqueueDelayedItemsForTimestamp($timestamp)
{
$item = null;
while ($item = Scheduler::nextItemForTimestamp($timestamp)) {
$this->log('queueing ' . $item['class'] . ' in ' . $item['queue'] . ' [delayed]');
if (!empty($item['args'])) {
$item['args'] = reset($item['args']);
}
Event::trigger('beforeDelayedEnqueue', array('queue' => $item['queue'], 'class' => $item['class'], 'args' => $item['args']));
Resque::enqueue($item['queue'], $item['class'], $item['args']);
}
}
/**
* Mark the current job as having failed
*
* @param \Exception $e
*/
public function fail(\Exception $e)
{
$this->stopped();
$this->setStatus(Job::STATUS_FAILED, $e);
// For the failed jobs we store a lot more data for debugging
$packet = $this->getPacket();
$failed_payload = array_merge(json_decode($this->payload, true), array('worker' => $packet['worker'], 'started' => $packet['started'], 'finished' => $packet['finished'], 'output' => $packet['output'], 'exception' => (array) json_decode($packet['exception'], true)));
$this->redis->zadd(Queue::redisKey($this->queue, 'failed'), time(), json_encode($failed_payload));
Stats::incr('failed', 1);
Stats::incr('failed', 1, Queue::redisKey($this->queue, 'stats'));
Event::fire(Event::JOB_FAILURE, array($this, $e));
}
/**
* Mark the current job as having failed.
*
* @param $exception
*/
public function fail($exception)
{
Event::trigger('onFailure', array('exception' => $exception, 'job' => $this));
$this->updateStatus(Status::STATUS_FAILED);
Failure::create($this->payload, $exception, $this->worker, $this->queue);
Stat::incr('failed');
Stat::incr('failed:' . $this->worker);
}
/**
* Look for any workers which should be running on this server and if
* they're not, remove them from Redis.
*
* This is a form of garbage collection to handle cases where the
* server may have been killed and the workers did not die gracefully
* and therefore leave state information in Redis.
*/
public function cleanup()
{
$workers = self::allWorkers();
$hosts = $this->redis->smembers(Host::redisKey());
$cleaned = array();
foreach ($workers as $worker) {
list($host, $pid) = explode(':', (string) $worker, 2);
if ($host != (string) $this->host and in_array($host, $hosts) or $host == (string) $this->host and posix_kill((int) $pid, 0)) {
continue;
}
$this->log('Pruning dead worker: ' . $worker, Logger::DEBUG);
$worker->unregister();
$cleaned[] = (string) $worker;
}
$workerIds = array_map(function ($w) {
return (string) $w;
}, $workers);
$keys = (array) $this->redis->keys('worker:' . $this->host . ':*');
foreach ($keys as $key) {
$key = $this->redis->removeNamespace($key);
$id = substr($key, strlen('worker:'));
if (!in_array($id, $workerIds)) {
if ($this->redis->ttl($key) < 0) {
$this->log('Expiring worker data: ' . $key, Logger::DEBUG);
$this->redis->expire($key, \Resque::getConfig('default.expiry_time', \Resque::DEFAULT_EXPIRY_TIME));
}
}
}
Event::fire(Event::WORKER_CLEANUP, array($this, $cleaned));
return $cleaned;
}
/**
* Initialises the command just after the input has been validated.
*
* This is mainly useful when a lot of commands extends one main command
* where some things need to be initialised based on the input arguments and options.
*
* @param InputInterface $input An InputInterface instance
* @param OutputInterface $output An OutputInterface instance
* @return void
*/
protected function initialize(InputInterface $input, OutputInterface $output)
{
$this->parseConfig($input->getOptions(), $this->getNativeDefinition()->getOptionDefaults());
$config = $this->getConfig();
// Configure Redis
Resque\Redis::setConfig(array('scheme' => $config['scheme'], 'host' => $config['host'], 'port' => $config['port'], 'namespace' => $config['namespace'], 'password' => $config['password']));
// Set the verbosity
if (array_key_exists('verbose', $config)) {
if (!$input->getOption('verbose') and !$input->getOption('quiet') and is_int($config['verbose'])) {
$output->setVerbosity($config['verbose']);
} else {
$this->config['verbose'] = $output->getVerbosity();
}
}
// Set the monolog loggers, it's possible to speficfy multiple handlers
$logs = array_key_exists('log', $config) ? array_unique($config['log']) : array();
empty($logs) and $logs[] = 'console';
$handlerConnector = new Resque\Logger\Handler\Connector($this, $input, $output);
$handlers = array();
foreach ($logs as $log) {
$handlers[] = $handlerConnector->resolve($log);
}
$this->logger = $logger = new Resque\Logger($handlers);
// Unset some variables so as not to pass to include file
unset($logs, $handlerConnector, $handlers);
// Include file?
if (array_key_exists('include', $config) and strlen($include = $config['include'])) {
if (!($includeFile = realpath(dirname($include) . '/' . basename($include))) or !is_readable($includeFile) or !is_file($includeFile) or substr($includeFile, -4) !== '.php') {
throw new \InvalidArgumentException('The include file "' . $include . '" is not a readable php file.');
}
try {
require_once $includeFile;
} catch (\Exception $e) {
throw new \RuntimeException('The include file "' . $include . '" threw an exception: "' . $e->getMessage() . '" on line ' . $e->getLine());
}
}
// This outputs all the events that are fired, useful for learning
// about when events are fired in the command flow
if (array_key_exists('events', $config) and $config['events'] === true) {
Resque\Event::listen('*', function ($event) use($output) {
$data = array_map(function ($d) {
$d instanceof \Exception and $d = '"' . $d->getMessage() . '"';
is_array($d) and $d = '[' . implode(',', $d) . ']';
return (string) $d;
}, array_slice(func_get_args(), 1));
$output->writeln('<comment>-> event:' . Resque\Event::eventName($event) . '(' . implode(',', $data) . ')</comment>');
});
}
}
<?php
use Resque\Event;
use Resque\Logger;
// Test job class
class TestJob
{
public function perform($args)
{
// Don't do anything
}
}
// Lets record the forking time
Event::listen(array(Event::WORKER_FORK, Event::WORKER_FORK_CHILD), function ($event, $job) use($logger) {
static $start = 0;
if ($event === Event::WORKER_FORK_CHILD) {
$exec = microtime(true) - $start;
$logger->log('Forking process took ' . round($exec * 1000, 2) . 'ms', Logger::DEBUG);
} else {
$start = microtime(true);
}
});
// When the job is about to be run, queue another one
Event::listen(Event::JOB_PERFORM, function ($event, $job) use($logger) {
Resque::push('TestJob');
});
// Add a few jobs to the default queue
for ($i = 0; $i < 10; $i++) {
Resque::push('TestJob');
}
/**
* Perform necessary actions to start a worker.
*/
private function startup()
{
$this->registerSigHandlers();
$this->pruneDeadWorkers();
Event::trigger('beforeFirstFork', $this);
$this->registerWorker();
}
