PHP Multi Threading Extension Using Pools and Workers
Example
Pooling provides a higher level abstraction of the Worker functionality, including the management of references in the way required by pthreads. From: http://php.net/manual/en/class.pool.php
Pools and workers provide an higher level of control and ease of creating multi-threaded
<?php
// This is the *Work* which would be ran by the worker.
// The work which you'd want to do in your worker.
// This class needs to extend the \Threaded or \Collectable or \Thread class.
class AwesomeWork extends Thread {
private $workName;
/**
* @param string $workName
* The work name wich would be given to every work.
*/
public function __construct(string $workName) {
// The block of code in the constructor of your work,
// would be executed when a work is submitted to your pool.
$this->workName = $workName;
printf("A new work was submitted with the name: %s\n", $workName);
}
public function run() {
// This block of code in, the method, run
// would be called by your worker.
// All the code in this method will be executed in another thread.
$workName = $this->workName;
printf("Work named %s starting...\n", $workName);
printf("New random number: %d\n", mt_rand());
}
}
// Create an empty worker for the sake of simplicity.
class AwesomeWorker extends Worker {
public function run() {
// You can put some code in here, which would be executed
// before the Work's are started (the block of code in the `run` method of your Work)
// by the Worker.
/* ... */
}
}
// Create a new Pool Instance.
// The ctor of \Pool accepts two parameters.
// First: The maximum number of workers your pool can create.
// Second: The name of worker class.
$pool = new \Pool(1, \AwesomeWorker::class);
// You need to submit your jobs, rather the instance of
// the objects (works) which extends the \Threaded class.
$pool->submit(new \AwesomeWork("DeadlyWork"));
$pool->submit(new \AwesomeWork("FatalWork"));
// We need to explicitly shutdown the pool, otherwise,
// unexpected things may happen.
// See: http://stackoverflow.com/a/23600861/23602185
$pool->shutdown();
