Current File : /home2/selectio/public_html/fms-worksuite/vendor/amphp/parallel/lib/Sync/ThreadedParcel.php
<?php
namespace Amp\Parallel\Sync;
use Amp\Promise;
use Amp\Success;
use Amp\Sync\ThreadedMutex;
use function Amp\call;
/**
* A thread-safe container that shares a value between multiple threads.
*
* @deprecated ext-pthreads development has been halted, see https://github.com/krakjoe/pthreads/issues/929
*/
final class ThreadedParcel implements Parcel
{
/** @var ThreadedMutex */
private $mutex;
/** @var \Threaded */
private $storage;
/**
* Creates a new shared object container.
*
* @param mixed $value The value to store in the container.
*/
public function __construct($value)
{
$this->mutex = new ThreadedMutex;
$this->storage = new Internal\ParcelStorage($value);
}
/**
* {@inheritdoc}
*/
public function unwrap(): Promise
{
return new Success($this->storage->get());
}
/**
* @return \Amp\Promise
*/
public function synchronized(callable $callback): Promise
{
return call(function () use ($callback): \Generator {
/** @var \Amp\Sync\Lock $lock */
$lock = yield $this->mutex->acquire();
try {
$result = yield call($callback, $this->storage->get());
if ($result !== null) {
$this->storage->set($result);
}
} finally {
$lock->release();
}
return $result;
});
}
}
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