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Edit File : ExtEvLoop.php \| Size : 5.89 KB
<?php namespace React\EventLoop; use Ev; use EvIo; use EvLoop; use React\EventLoop\Tick\FutureTickQueue; use React\EventLoop\Timer\Timer; use SplObjectStorage; /** * An `ext-ev` based event loop. * * This loop uses the [`ev` PECL extension](https://pecl.php.net/package/ev), * that provides an interface to `libev` library. * `libev` itself supports a number of system-specific backends (epoll, kqueue). * * This loop is known to work with PHP 5.4 through PHP 7+. * * @see http://php.net/manual/en/book.ev.php * @see https://bitbucket.org/osmanov/pecl-ev/overview / class ExtEvLoop implements LoopInterface { /* * @var EvLoop / private $loop; /* * @var FutureTickQueue / private $futureTickQueue; /* * @var SplObjectStorage / private $timers; /* * @var EvIo[] / private $readStreams = array(); /* * @var EvIo[] / private $writeStreams = array(); /* * @var bool / private $running; /* * @var SignalsHandler / private $signals; /* * @var \EvSignal[] / private $signalEvents = array(); public function __construct() { $this->loop = new EvLoop(); $this->futureTickQueue = new FutureTickQueue(); $this->timers = new SplObjectStorage(); $this->signals = new SignalsHandler(); } public function addReadStream($stream, $listener) { $key = (int)$stream; if (isset($this->readStreams[$key])) { return; } $callback = $this->getStreamListenerClosure($stream, $listener); $event = $this->loop->io($stream, Ev::READ, $callback); $this->readStreams[$key] = $event; } /* * @param resource $stream * @param callable $listener * * @return \Closure / private function getStreamListenerClosure($stream, $listener) { return function () use ($stream, $listener) { \call_user_func($listener, $stream); }; } public function addWriteStream($stream, $listener) { $key = (int)$stream; if (isset($this->writeStreams[$key])) { return; } $callback = $this->getStreamListenerClosure($stream, $listener); $event = $this->loop->io($stream, Ev::WRITE, $callback); $this->writeStreams[$key] = $event; } public function removeReadStream($stream) { $key = (int)$stream; if (!isset($this->readStreams[$key])) { return; } $this->readStreams[$key]->stop(); unset($this->readStreams[$key]); } public function removeWriteStream($stream) { $key = (int)$stream; if (!isset($this->writeStreams[$key])) { return; } $this->writeStreams[$key]->stop(); unset($this->writeStreams[$key]); } public function addTimer($interval, $callback) { $timer = new Timer($interval, $callback, false); $that = $this; $timers = $this->timers; $callback = function () use ($timer, $timers, $that) { \call_user_func($timer->getCallback(), $timer); if ($timers->contains($timer)) { $that->cancelTimer($timer); } }; $event = $this->loop->timer($timer->getInterval(), 0.0, $callback); $this->timers->attach($timer, $event); return $timer; } public function addPeriodicTimer($interval, $callback) { $timer = new Timer($interval, $callback, true); $callback = function () use ($timer) { \call_user_func($timer->getCallback(), $timer); }; $event = $this->loop->timer($interval, $interval, $callback); $this->timers->attach($timer, $event); return $timer; } public function cancelTimer(TimerInterface $timer) { if (!isset($this->timers[$timer])) { return; } $event = $this->timers[$timer]; $event->stop(); $this->timers->detach($timer); } public function futureTick($listener) { $this->futureTickQueue->add($listener); } public function run() { $this->running = true; while ($this->running) { $this->futureTickQueue->tick(); $hasPendingCallbacks = !$this->futureTickQueue->isEmpty(); $wasJustStopped = !$this->running; $nothingLeftToDo = !$this->readStreams && !$this->writeStreams && !$this->timers->count() && $this->signals->isEmpty(); $flags = Ev::RUN_ONCE; if ($wasJustStopped \|\| $hasPendingCallbacks) { $flags \|= Ev::RUN_NOWAIT; } elseif ($nothingLeftToDo) { break; } $this->loop->run($flags); } } public function stop() { $this->running = false; } public function __destruct() { /* @var TimerInterface $timer */ foreach ($this->timers as $timer) { $this->cancelTimer($timer); } foreach ($this->readStreams as $key => $stream) { $this->removeReadStream($key); } foreach ($this->writeStreams as $key => $stream) { $this->removeWriteStream($key); } } public function addSignal($signal, $listener) { $this->signals->add($signal, $listener); if (!isset($this->signalEvents[$signal])) { $this->signalEvents[$signal] = $this->loop->signal($signal, function() use ($signal) { $this->signals->call($signal); }); } } public function removeSignal($signal, $listener) { $this->signals->remove($signal, $listener); if (isset($this->signalEvents[$signal])) { $this->signalEvents[$signal]->stop(); unset($this->signalEvents[$signal]); } } } Back

Edit File : ExtEvLoop.php | Size : 5.89 KB

<?php

namespace React\EventLoop;

use Ev;
use EvIo;
use EvLoop;
use React\EventLoop\Tick\FutureTickQueue;
use React\EventLoop\Timer\Timer;
use SplObjectStorage;

/**
 * An `ext-ev` based event loop.
 *
 * This loop uses the [`ev` PECL extension](https://pecl.php.net/package/ev),
 * that provides an interface to `libev` library.
 * `libev` itself supports a number of system-specific backends (epoll, kqueue).
 *
 * This loop is known to work with PHP 5.4 through PHP 7+.
 *
 * @see http://php.net/manual/en/book.ev.php
 * @see https://bitbucket.org/osmanov/pecl-ev/overview
 */
class ExtEvLoop implements LoopInterface
{
    /**
     * @var EvLoop
     */
    private $loop;

/**
     * @var FutureTickQueue
     */
    private $futureTickQueue;

/**
     * @var SplObjectStorage
     */
    private $timers;

/**
     * @var EvIo[]
     */
    private $readStreams = array();

/**
     * @var EvIo[]
     */
    private $writeStreams = array();

/**
     * @var bool
     */
    private $running;

/**
     * @var SignalsHandler
     */
    private $signals;

/**
     * @var \EvSignal[]
     */
    private $signalEvents = array();

public function __construct()
    {
        $this->loop = new EvLoop();
        $this->futureTickQueue = new FutureTickQueue();
        $this->timers = new SplObjectStorage();
        $this->signals = new SignalsHandler();
    }

public function addReadStream($stream, $listener)
    {
        $key = (int)$stream;

if (isset($this->readStreams[$key])) {
            return;
        }

$callback = $this->getStreamListenerClosure($stream, $listener);
        $event = $this->loop->io($stream, Ev::READ, $callback);
        $this->readStreams[$key] = $event;
    }

/**
     * @param resource $stream
     * @param callable $listener
     *
     * @return \Closure
     */
    private function getStreamListenerClosure($stream, $listener)
    {
        return function () use ($stream, $listener) {
            \call_user_func($listener, $stream);
        };
    }

public function addWriteStream($stream, $listener)
    {
        $key = (int)$stream;

if (isset($this->writeStreams[$key])) {
            return;
        }

$callback = $this->getStreamListenerClosure($stream, $listener);
        $event = $this->loop->io($stream, Ev::WRITE, $callback);
        $this->writeStreams[$key] = $event;
    }

public function removeReadStream($stream)
    {
        $key = (int)$stream;

if (!isset($this->readStreams[$key])) {
            return;
        }

$this->readStreams[$key]->stop();
        unset($this->readStreams[$key]);
    }

public function removeWriteStream($stream)
    {
        $key = (int)$stream;

if (!isset($this->writeStreams[$key])) {
            return;
        }

$this->writeStreams[$key]->stop();
        unset($this->writeStreams[$key]);
    }

public function addTimer($interval, $callback)
    {
        $timer = new Timer($interval, $callback, false);

$that = $this;
        $timers = $this->timers;
        $callback = function () use ($timer, $timers, $that) {
            \call_user_func($timer->getCallback(), $timer);

if ($timers->contains($timer)) {
                $that->cancelTimer($timer);
            }
        };

$event = $this->loop->timer($timer->getInterval(), 0.0, $callback);
        $this->timers->attach($timer, $event);

return $timer;
    }

public function addPeriodicTimer($interval, $callback)
    {
        $timer = new Timer($interval, $callback, true);

$callback = function () use ($timer) {
            \call_user_func($timer->getCallback(), $timer);
        };

$event = $this->loop->timer($interval, $interval, $callback);
        $this->timers->attach($timer, $event);

return $timer;
    }

public function cancelTimer(TimerInterface $timer)
    {
        if (!isset($this->timers[$timer])) {
            return;
        }

$event = $this->timers[$timer];
        $event->stop();
        $this->timers->detach($timer);
    }

public function futureTick($listener)
    {
        $this->futureTickQueue->add($listener);
    }

public function run()
    {
        $this->running = true;

while ($this->running) {
            $this->futureTickQueue->tick();

$hasPendingCallbacks = !$this->futureTickQueue->isEmpty();
            $wasJustStopped = !$this->running;
            $nothingLeftToDo = !$this->readStreams
                && !$this->writeStreams
                && !$this->timers->count()
                && $this->signals->isEmpty();

$flags = Ev::RUN_ONCE;
            if ($wasJustStopped || $hasPendingCallbacks) {
                $flags |= Ev::RUN_NOWAIT;
            } elseif ($nothingLeftToDo) {
                break;
            }

$this->loop->run($flags);
        }
    }

public function stop()
    {
        $this->running = false;
    }

public function __destruct()
    {
        /** @var TimerInterface $timer */
        foreach ($this->timers as $timer) {
            $this->cancelTimer($timer);
        }

foreach ($this->readStreams as $key => $stream) {
            $this->removeReadStream($key);
        }

foreach ($this->writeStreams as $key => $stream) {
            $this->removeWriteStream($key);
        }
    }

public function addSignal($signal, $listener)
    {
        $this->signals->add($signal, $listener);

if (!isset($this->signalEvents[$signal])) {
            $this->signalEvents[$signal] = $this->loop->signal($signal, function() use ($signal) {
                $this->signals->call($signal);
            });
        }
    }

public function removeSignal($signal, $listener)
    {
        $this->signals->remove($signal, $listener);

if (isset($this->signalEvents[$signal])) {
            $this->signalEvents[$signal]->stop();
            unset($this->signalEvents[$signal]);
        }
    }
}

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