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<?php
/**
* Loop helper trait.
*
* This file is part of MadelineProto.
* MadelineProto is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
* MadelineProto is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Affero General Public License for more details.
* You should have received a copy of the GNU General Public License along with MadelineProto.
* If not, see <http://www.gnu.org/licenses/>.
*
* @author Daniil Gentili <daniil@daniil.it>
* @copyright 2016-2019 Daniil Gentili <daniil@daniil.it>
* @license https://opensource.org/licenses/AGPL-3.0 AGPLv3
*
* @link https://docs.madelineproto.xyz MadelineProto documentation
*/
namespace danog\MadelineProto\Loop\Impl;
use Amp\Deferred;
use Amp\Promise;
use danog\MadelineProto\Coroutine;
use danog\MadelineProto\Loop\SignalLoopInterface;
/**
* Signal loop helper trait.
*
* @author Daniil Gentili <daniil@daniil.it>
*/
abstract class SignalLoop extends Loop implements SignalLoopInterface
{
private $signalDeferred;
public function signal($what)
{
if ($this->signalDeferred) {
$deferred = $this->signalDeferred;
$this->signalDeferred = null;
if ($what instanceof \Exception || $what instanceof \Throwable) {
$deferred->fail($what);
} else {
$deferred->resolve($what);
}
}
}
public function waitSignal($promise): Promise
{
if ($promise instanceof \Generator) {
$promise = new Coroutine($promise);
}
$this->signalDeferred = new Deferred();
$dpromise = $this->signalDeferred->promise();
$promise->onResolve(function () use ($promise) {
if ($this->signalDeferred !== null) {
$deferred = $this->signalDeferred;
$this->signalDeferred = null;
$deferred->resolve($promise);
}
});
return $dpromise;
}
}
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