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Directory >> /var/www/html/back/vendor/react/event-loop/src/

File / Folder	Size	Action
.	-
Tick	--	ren
Timer	--	ren
ExtEvLoop.php	5.933KB	edt ren
ExtEventLoop.php	8.067KB	edt ren
ExtLibevLoop.php	5.632KB	edt ren
ExtLibeventLoop.php	8.54KB	edt ren
ExtUvLoop.php	9.354KB	edt ren
Factory.php	1.774KB	edt ren
Loop.php	7.301KB	edt ren
LoopInterface.php	18.874KB	edt ren
SignalsHandler.php	1.283KB	edt ren
StreamSelectLoop.php	11.764KB	edt ren
TimerInterface.php	0.48KB	edt ren

<?php

namespace React\EventLoop;

/**
 * The `Loop` class exists as a convenient way to get the currently relevant loop
 */
final class Loop
{
    /**
     * @var ?LoopInterface
     */
    private static $instance;

/** @var bool */
    private static $stopped = false;

/**
     * Returns the event loop.
     * When no loop is set, it will call the factory to create one.
     *
     * This method always returns an instance implementing `LoopInterface`,
     * the actual event loop implementation is an implementation detail.
     *
     * This method is the preferred way to get the event loop and using
     * Factory::create has been deprecated.
     *
     * @return LoopInterface
     */
    public static function get()
    {
        if (self::$instance instanceof LoopInterface) {
            return self::$instance;
        }

self::$instance = $loop = Factory::create();

// Automatically run loop at end of program, unless already started or stopped explicitly.
        // This is tested using child processes, so coverage is actually 100%, see BinTest.
        // @codeCoverageIgnoreStart
        $hasRun = false;
        $loop->futureTick(function () use (&$hasRun) {
            $hasRun = true;
        });

$stopped =& self::$stopped;
        register_shutdown_function(function () use ($loop, &$hasRun, &$stopped) {
            // Don't run if we're coming from a fatal error (uncaught exception).
            $error = error_get_last();
            if ((isset($error['type']) ? $error['type'] : 0) & (E_ERROR | E_CORE_ERROR | E_COMPILE_ERROR | E_USER_ERROR | E_RECOVERABLE_ERROR)) {
                return;
            }

if (!$hasRun && !$stopped) {
                $loop->run();
            }
        });
        // @codeCoverageIgnoreEnd

return self::$instance;
    }

/**
     * Internal undocumented method, behavior might change or throw in the
     * future. Use with caution and at your own risk.
     *
     * @internal
     * @return void
     */
    public static function set(LoopInterface $loop)
    {
        self::$instance = $loop;
    }

/**
     * [Advanced] Register a listener to be notified when a stream is ready to read.
     *
     * @param resource $stream
     * @param callable $listener
     * @return void
     * @throws \Exception
     * @see LoopInterface::addReadStream()
     */
    public static function addReadStream($stream, $listener)
    {
        // create loop instance on demand (legacy PHP < 7 doesn't like ternaries in method calls)
        if (self::$instance === null) {
            self::get();
        }
        self::$instance->addReadStream($stream, $listener);
    }

/**
     * [Advanced] Register a listener to be notified when a stream is ready to write.
     *
     * @param resource $stream
     * @param callable $listener
     * @return void
     * @throws \Exception
     * @see LoopInterface::addWriteStream()
     */
    public static function addWriteStream($stream, $listener)
    {
        // create loop instance on demand (legacy PHP < 7 doesn't like ternaries in method calls)
        if (self::$instance === null) {
            self::get();
        }
        self::$instance->addWriteStream($stream, $listener);
    }

/**
     * Remove the read event listener for the given stream.
     *
     * @param resource $stream
     * @return void
     * @see LoopInterface::removeReadStream()
     */
    public static function removeReadStream($stream)
    {
        if (self::$instance !== null) {
            self::$instance->removeReadStream($stream);
        }
    }

/**
     * Remove the write event listener for the given stream.
     *
     * @param resource $stream
     * @return void
     * @see LoopInterface::removeWriteStream()
     */
    public static function removeWriteStream($stream)
    {
        if (self::$instance !== null) {
            self::$instance->removeWriteStream($stream);
        }
    }

/**
     * Enqueue a callback to be invoked once after the given interval.
     *
     * @param float $interval
     * @param callable $callback
     * @return TimerInterface
     * @see LoopInterface::addTimer()
     */
    public static function addTimer($interval, $callback)
    {
        // create loop instance on demand (legacy PHP < 7 doesn't like ternaries in method calls)
        if (self::$instance === null) {
            self::get();
        }
        return self::$instance->addTimer($interval, $callback);
    }

/**
     * Enqueue a callback to be invoked repeatedly after the given interval.
     *
     * @param float $interval
     * @param callable $callback
     * @return TimerInterface
     * @see LoopInterface::addPeriodicTimer()
     */
    public static function addPeriodicTimer($interval, $callback)
    {
        // create loop instance on demand (legacy PHP < 7 doesn't like ternaries in method calls)
        if (self::$instance === null) {
            self::get();
        }
        return self::$instance->addPeriodicTimer($interval, $callback);
    }

/**
     * Cancel a pending timer.
     *
     * @param TimerInterface $timer
     * @return void
     * @see LoopInterface::cancelTimer()
     */
    public static function cancelTimer(TimerInterface $timer)
    {
        if (self::$instance !== null) {
            self::$instance->cancelTimer($timer);
        }
    }

/**
     * Schedule a callback to be invoked on a future tick of the event loop.
     *
     * @param callable $listener
     * @return void
     * @see LoopInterface::futureTick()
     */
    public static function futureTick($listener)
    {
        // create loop instance on demand (legacy PHP < 7 doesn't like ternaries in method calls)
        if (self::$instance === null) {
            self::get();
        }

self::$instance->futureTick($listener);
    }

/**
     * Register a listener to be notified when a signal has been caught by this process.
     *
     * @param int $signal
     * @param callable $listener
     * @return void
     * @see LoopInterface::addSignal()
     */
    public static function addSignal($signal, $listener)
    {
        // create loop instance on demand (legacy PHP < 7 doesn't like ternaries in method calls)
        if (self::$instance === null) {
            self::get();
        }

self::$instance->addSignal($signal, $listener);
    }

/**
     * Removes a previously added signal listener.
     *
     * @param int $signal
     * @param callable $listener
     * @return void
     * @see LoopInterface::removeSignal()
     */
    public static function removeSignal($signal, $listener)
    {
        if (self::$instance !== null) {
            self::$instance->removeSignal($signal, $listener);
        }
    }

/**
     * Run the event loop until there are no more tasks to perform.
     *
     * @return void
     * @see LoopInterface::run()
     */
    public static function run()
    {
        // create loop instance on demand (legacy PHP < 7 doesn't like ternaries in method calls)
        if (self::$instance === null) {
            self::get();
        }

self::$instance->run();
    }

/**
     * Instruct a running event loop to stop.
     *
     * @return void
     * @see LoopInterface::stop()
     */
    public static function stop()
    {
        self::$stopped = true;
        if (self::$instance !== null) {
            self::$instance->stop();
        }
    }
}