/**
* @return GearmanWorker
*/
public function worker()
{
if (!$this->worker) {
$this->worker = $this->setServers(new \GearmanWorker());
}
$this->worker->addOptions(GEARMAN_WORKER_GRAB_UNIQ);
return $this->worker;
}
/**
* Set up the GearmanWorker to run in non-blocking mode
*
* This allows you to do work "in between" jobs when its idle
*
* Events emitted:
* - Gearman.beforeWork: Called before GearmanWorker::work()
* - Gearman.afterWork: Called after GearmanWorker::work() actually processed a job
* - Gearman.beforeWait: Called before Gearman::wait() is called
* - Gearman.afterWait: Called after Gearman::wait() is called
*
* N.B: Gearman.beforeWork will be called even if there is no jobs to be processed,
* it's meant as a simple wrapper around GearmanWorker::work() and GearmanWorker::wait()
*
* All events can abort the infinite loop by calling $event->stopPropagation();
*
* @return void
*/
protected function _work()
{
$this->_worker->addOptions(GEARMAN_WORKER_NON_BLOCKING);
// Infinite loop of doom until we die!
while (true) {
if (!$this->_triggerEvent('Gearman.beforeWork')) {
break;
}
$this->_worker->work();
if (!$this->_triggerEvent('Gearman.afterWork')) {
break;
}
// If we processed a job, don't bother to wait
if ($this->_worker->returnCode() == GEARMAN_SUCCESS) {
continue;
}
if (!$this->_triggerEvent('Gearman.beforeWait')) {
break;
}
$this->_worker->wait();
if (!$this->_triggerEvent('Gearman.afterWait')) {
break;
}
}
}
/**
* Starts a worker for the PECL library
*
* @param array $worker_list List of worker functions to add
* @param array $timeouts list of worker timeouts to pass to server
* @return void
*
*/
protected function start_lib_worker($worker_list, $timeouts = array())
{
$thisWorker = new GearmanWorker();
$thisWorker->addOptions(GEARMAN_WORKER_NON_BLOCKING);
$thisWorker->setTimeout(5000);
foreach ($this->servers as $s) {
$this->log("Adding server {$s}", GearmanManager::LOG_LEVEL_WORKER_INFO);
// see: https://bugs.php.net/bug.php?id=63041
try {
$thisWorker->addServers($s);
} catch (\GearmanException $e) {
if ($e->getMessage() !== 'Failed to set exception option') {
throw $e;
}
}
}
foreach ($worker_list as $w) {
$timeout = isset($timeouts[$w]) ? $timeouts[$w] : null;
$this->log("Adding job {$w} ; timeout: " . $timeout, GearmanManager::LOG_LEVEL_WORKER_INFO);
$thisWorker->addFunction($w, array($this, "do_job"), $this, $timeout);
}
$start = time();
while (!$this->stop_work) {
if (@$thisWorker->work() || $thisWorker->returnCode() == GEARMAN_IO_WAIT || $thisWorker->returnCode() == GEARMAN_NO_JOBS) {
if ($thisWorker->returnCode() == GEARMAN_SUCCESS) {
continue;
}
if (!@$thisWorker->wait()) {
if ($thisWorker->returnCode() == GEARMAN_NO_ACTIVE_FDS) {
sleep(5);
}
}
}
/**
* Check the running time of the current child. If it has
* been too long, stop working.
*/
if ($this->max_run_time > 0 && time() - $start > $this->max_run_time) {
$this->log("Been running too long, exiting", GearmanManager::LOG_LEVEL_WORKER_INFO);
$this->stop_work = true;
}
if (!empty($this->config["max_runs_per_worker"]) && $this->job_execution_count >= $this->config["max_runs_per_worker"]) {
$this->log("Ran {$this->job_execution_count} jobs which is over the maximum({$this->config['max_runs_per_worker']}), exiting", GearmanManager::LOG_LEVEL_WORKER_INFO);
$this->stop_work = true;
}
}
$thisWorker->unregisterAll();
}
public function work(\GearmanWorker $worker)
{
$worker->addOptions(GEARMAN_WORKER_NON_BLOCKING);
$getWorkAttempts = 0;
do {
$workRes = $worker->work();
$getWorkAttempts++;
$this->logger->debug("Get work attempt res: " . serialize($workRes));
$this->logger->debug("Attempts number: " . serialize($getWorkAttempts));
sleep(1);
if ($workRes) {
$this->taskWasGot = true;
}
} while ($workRes === false && $getWorkAttempts < WorkersConstants::MAX_GET_TASK_ATTEMPTS);
if ($worker->returnCode() != GEARMAN_SUCCESS) {
$this->logger->error("Not correct Gearman worker execution:" . $worker->returnCode());
}
return null;
}
/**
* Starts a worker for the PECL library
*
* @param array $worker_list List of worker functions to add
* @return void
*
*/
protected function start_lib_worker($worker_list)
{
$thisWorker = new GearmanWorker();
$thisWorker->addOptions(GEARMAN_WORKER_NON_BLOCKING);
$thisWorker->setTimeout(5000);
foreach ($this->servers as $s) {
$this->log("Adding server {$s}", GearmanManager::LOG_LEVEL_WORKER_INFO);
$thisWorker->addServers($s);
}
foreach ($worker_list as $w) {
$this->log("Adding job {$w}", GearmanManager::LOG_LEVEL_WORKER_INFO);
$thisWorker->addFunction($w, array($this, "do_job"), $this);
}
$start = time();
while (!$this->stop_work) {
if (@$thisWorker->work() || $thisWorker->returnCode() == GEARMAN_IO_WAIT || $thisWorker->returnCode() == GEARMAN_NO_JOBS) {
if ($thisWorker->returnCode() == GEARMAN_SUCCESS) {
continue;
}
if (!@$thisWorker->wait()) {
if ($thisWorker->returnCode() == GEARMAN_NO_ACTIVE_FDS) {
sleep(5);
}
}
}
/**
* Check the running time of the current child. If it has
* been too long, stop working.
*/
if ($this->max_run_time > 0 && time() - $start > $this->max_run_time) {
$this->log("Been running too long, exiting", GearmanManager::LOG_LEVEL_WORKER_INFO);
$this->stop_work = true;
}
if (!empty($this->config["max_runs_per_worker"]) && $this->job_execution_count >= $this->config["max_runs_per_worker"]) {
$this->log("Ran {$this->job_execution_count} jobs which is over the maximum({$this->config['max_runs_per_worker']}), exiting", GearmanManager::LOG_LEVEL_WORKER_INFO);
$this->stop_work = true;
}
}
$thisWorker->unregisterAll();
}
<?php
// Instantiate a new Gearman Worker
$worker= new GearmanWorker();
// Non-blocking
$worker->addOptions(GEARMAN_WORKER_NON_BLOCKING);
// Add the localhost:4730 as server (default)
$worker->addServer();
// Add the functions to the worker
// Fetch all photo Ids of this twitpic user
$worker->addFunction("fetchPhotoIds", "fetchPhotoIds");
// Fetch a photo from twitpic
$worker->addFunction("fetchPhoto", "fetchPhoto");
// This worker will destroy itself in 5 seconds.
$worker->setTimeout(5000);
// Keep worker alive as long as there are jobs
while (@$worker->work() || $worker->returnCode() == GEARMAN_IO_WAIT ||
$worker->returnCode() == GEARMAN_NO_JOBS){
if ($worker->returnCode() == GEARMAN_SUCCESS){
echo date('d-m-Y H:i:s') . "| Job Successful \n";
continue;
}
if (!@$worker->wait()) {