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ProcessProxy.php
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ProcessProxy.php
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<?php
namespace Aternos\Taskmaster\Proxy;
use Aternos\Taskmaster\Communication\Promise\ResponsePromise;
use Aternos\Taskmaster\Communication\Request\StartWorkerInstanceRequest;
use Aternos\Taskmaster\Communication\Request\StopWorkerInstanceRequest;
use Aternos\Taskmaster\Communication\Request\TerminateRequest;
use Aternos\Taskmaster\Communication\RequestHandlingTrait;
use Aternos\Taskmaster\Communication\Socket\SocketCommunicatorTrait;
use Aternos\Taskmaster\Communication\Socket\SocketInterface;
use Aternos\Taskmaster\Runtime\RuntimeProcess;
use Aternos\Taskmaster\Taskmaster;
use Aternos\Taskmaster\Worker\Instance\ProxyableWorkerInstanceInterface;
use Exception;
use Throwable;
/**
* Class ProcessProxy
*
* A {@link ProxyInterface} implementation for running a proxy in a separate process using {@link proc_open()}.
* No extensions are required for this proxy, and it should be available in all environments except
* those that explicitly block {@link proc_open()}.
*
* @package Aternos\Taskmaster\Proxy
*/
class ProcessProxy extends Proxy
{
use RequestHandlingTrait;
use SocketCommunicatorTrait;
protected ?ProxySocketInterface $proxySocket = null;
protected ?RuntimeProcess $process = null;
/**
* @inheritDoc
* @throws Throwable
*/
public function startWorkerInstance(ProxyableWorkerInstanceInterface $worker): ResponsePromise
{
if ($this->status === ProxyStatus::CREATED || $this->status === ProxyStatus::FAILED || $this->status === ProxyStatus::STOPPED) {
$this->start();
}
return $this->sendRequest(new StartWorkerInstanceRequest($worker));
}
/**
* @inheritDoc
* @throws Throwable
*/
public function stopWorkerInstance(ProxyableWorkerInstanceInterface $worker): ResponsePromise
{
return $this->sendRequest(new StopWorkerInstanceRequest($worker->getId()));
}
/**
* @inheritDoc
*/
public function getSocket(): SocketInterface
{
return $this->socket;
}
/**
* Start the proxy
*
* @return $this
*/
protected function start(): static
{
$this->status = ProxyStatus::STARTING;
$this->process = new RuntimeProcess($this->options, ProxyRuntime::class);
$this->proxySocket = new ProxySocket($this->process->getSocket());
$this->socket = new ProxiedSocket($this->proxySocket, null);
$this->status = ProxyStatus::RUNNING;
return $this;
}
/**
* @inheritDoc
*/
public function getProxySocket(): ?ProxySocketInterface
{
return $this->proxySocket;
}
/**
* @inheritDoc
* @throws Throwable
*/
public function stop(): static
{
$this->sendRequest(new TerminateRequest());
while ($this->process->isRunning()) {
usleep(Taskmaster::SOCKET_WAIT_TIME);
}
$this->status = ProxyStatus::STOPPED;
return $this;
}
/**
* @inheritDoc
*/
protected function handleFail(null|string|Exception $reason = null): static
{
$this->status = ProxyStatus::FAILED;
return $this;
}
}