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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\Loop;
use Amp\Promise;
use Amp\Success;
use danog\MadelineProto\Loop\ResumableLoopInterface;
use danog\MadelineProto\Tools;
/**
* Resumable signal loop helper trait.
*
* @author Daniil Gentili <daniil@daniil.it>
*/
abstract class ResumableSignalLoop extends SignalLoop implements ResumableLoopInterface
{
use Tools;
private $resume;
private $pause;
private $resumeWatcher;
public function pause($time = null): Promise
{
if (!is_null($time)) {
if ($time <= 0) {
return new Success(0);
} else {
$resume = microtime(true) + $time;
if ($this->resumeWatcher) {
Loop::cancel($this->resumeWatcher);
$this->resumeWatcher = null;
}
$this->resumeWatcher = Loop::delay($time * 1000, [$this, 'resume'], $resume);
}
}
$this->resume = new Deferred();
$pause = $this->pause;
$this->pause = new Deferred();
if ($pause) {
Loop::defer([$pause, 'resolve']);
}
return $this->resume->promise();
}
public function resume($watcherId = null, $expected = 0)
{
if ($this->resumeWatcher) {
$storedWatcherId = $this->resumeWatcher;
Loop::cancel($storedWatcherId);
$this->resumeWatcher = null;
if ($watcherId && $storedWatcherId !== $watcherId) {
return;
}
}
if ($this->resume) {
$resume = $this->resume;
$this->resume = null;
$resume->resolve();
return $this->pause ? $this->pause->promise() : null;
}
}
public function resumeDefer()
{
Loop::defer([$this, 'resume']);
return $this->pause ? $this->pause->promise() : null;
}
}
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