91 lines
3.0 KiB
PHP
91 lines
3.0 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\Loop;
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use Amp\Promise;
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use Amp\Success;
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use danog\MadelineProto\Loop\ResumableLoopInterface;
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/**
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* Resumable 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 ResumableSignalLoop extends SignalLoop implements ResumableLoopInterface
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{
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private $resume;
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private $pause;
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protected $resumeWatcher;
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public function pause($time = null): Promise
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{
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if (!\is_null($time)) {
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if ($time <= 0) {
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return new Success(0);
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}
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$resume = \microtime(true) + $time;
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if ($this->resumeWatcher) {
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Loop::cancel($this->resumeWatcher);
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$this->resumeWatcher = null;
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}
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$this->resumeWatcher = Loop::delay((int) ($time * 1000), [$this, 'resume'], $resume);
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}
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$this->resume = new Deferred();
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$pause = $this->pause;
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$this->pause = new Deferred();
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if ($pause) {
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Loop::defer([$pause, 'resolve']);
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}
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return $this->resume->promise();
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}
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public function resume($watcherId = null, $expected = 0)
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{
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if ($this->resumeWatcher) {
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$storedWatcherId = $this->resumeWatcher;
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Loop::cancel($storedWatcherId);
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$this->resumeWatcher = null;
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if ($watcherId && $storedWatcherId !== $watcherId) {
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return;
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}
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}
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if ($this->resume) {
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$resume = $this->resume;
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$this->resume = null;
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$resume->resolve();
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return $this->pause ? $this->pause->promise() : null;
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}
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}
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public function resumeDefer()
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{
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Loop::defer([$this, 'resume']);
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return $this->pause ? $this->pause->promise() : null;
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}
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public function exitedLoop()
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{
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parent::exitedLoop();
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if ($this->resumeWatcher) {
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Loop::cancel($this->resumeWatcher);
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$this->resumeWatcher = null;
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}
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}
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}
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