71 lines
2.3 KiB
PHP
71 lines
2.3 KiB
PHP
<?php
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/**
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* Loop helper trait.
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*
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* This file is part of MadelineProto.
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* 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.
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* 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.
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* See the GNU Affero General Public License for more details.
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* You should have received a copy of the GNU General Public License along with MadelineProto.
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* If not, see <http://www.gnu.org/licenses/>.
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*
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* @author Daniil Gentili <daniil@daniil.it>
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* @copyright 2016-2020 Daniil Gentili <daniil@daniil.it>
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* @license https://opensource.org/licenses/AGPL-3.0 AGPLv3
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*
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* @link https://docs.madelineproto.xyz MadelineProto documentation
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*/
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namespace danog\MadelineProto\Loop\Impl;
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use Amp\Deferred;
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use Amp\Promise;
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use danog\MadelineProto\Coroutine;
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use danog\MadelineProto\Loop\SignalLoopInterface;
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/**
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* Signal loop helper trait.
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*
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* @author Daniil Gentili <daniil@daniil.it>
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*/
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abstract class SignalLoop extends Loop implements SignalLoopInterface
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{
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private $signalDeferred;
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/**
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* Send signal to loop.
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*
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* @param mixed $what Data to signal
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*
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* @return void
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*/
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public function signal($what): void
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{
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if ($this->signalDeferred) {
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$deferred = $this->signalDeferred;
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$this->signalDeferred = null;
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if ($what instanceof \Exception || $what instanceof \Throwable) {
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$deferred->fail($what);
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} else {
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$deferred->resolve($what);
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}
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}
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}
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public function waitSignal($promise): Promise
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{
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if ($promise instanceof \Generator) {
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$promise = new Coroutine($promise);
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}
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$this->signalDeferred = new Deferred();
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$dpromise = $this->signalDeferred->promise();
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$promise->onResolve(function () use ($promise) {
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if ($this->signalDeferred !== null) {
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$deferred = $this->signalDeferred;
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$this->signalDeferred = null;
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$deferred->resolve($promise);
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}
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});
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return $dpromise;
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}
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}
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