/**
* Spawns a new process for the Runnable_Interface
*
* @param \Multitask\Runnable_Interface $run The Runnable_interface that needs to be run
* @param String $workDirectory The current working directory
*
* @return int The pid of the spawned process
*/
public function spawn(Runnable_Interface $run, $workDirectory)
{
$manager = $this->manager;
$newWorkingDirectory = $workDirectory . '/' . $run->getName();
return $this->process->spawn(function () use($run, $manager) {
$run->run($manager);
}, function () use($manager, $newWorkingDirectory) {
$manager->initForNewProcess($newWorkingDirectory);
}, function () use($manager) {
$manager->postProcess();
});
}
public function addRunnable(\Multitask\Runnable_Interface $runnable, $pid)
{
$cacheItem = array('pid' => $pid, 'runnable' => $runnable, 'name' => $runnable->getName());
$this->nameCache[$cacheItem['name']] = $cacheItem;
$this->pidCache[$pid] = $cacheItem;
}
/**
* Runs a class that implements the Runnable interface
* It checks if there is allready a process running iwith this name in the current process group
*
* @param Runnable_Interface $run Runnable that you want to run
* @param bool $checkIfRunning check if the process is allready running if specified as false it won't check this is useful if you know the process isn't running
*
* @return bool|int the pid of the spawned or running process false with failure to spawn
*/
public function run(Runnable_Interface $run, $checkIfRunning = true)
{
$pid = false;
if ($checkIfRunning) {
$pid = $this->fileHandler->get($this->workingDirectory, $run->getName() . '.pid');
if (!$this->process->checkPidIsAlive($pid)) {
$pid = false;
}
}
if (!$pid) {
$pid = $this->spawner->spawn($run, $this->workingDirectory);
}
if ($pid) {
$this->addRunnableToCache($run, $pid);
}
return $pid;
}
