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PK��t�Z��R�T��T�� composer.jsonnu��[��{ "name": "react/event-loop", "description": "ReactPHP's core reactor event loop that libraries can use for evented I/O.", "keywords": ["event-loop", "asynchronous"], "license": "MIT", "authors": [ { "name": "Christian Lück", "homepage": "https://clue.engineering/", "email": "christian@clue.engineering" }, { "name": "Cees-Jan Kiewiet", "homepage": "https://wyrihaximus.net/", "email": "reactphp@ceesjankiewiet.nl" }, { "name": "Jan Sorgalla", "homepage": "https://sorgalla.com/", "email": "jsorgalla@gmail.com" }, { "name": "Chris Boden", "homepage": "https://cboden.dev/", "email": "cboden@gmail.com" } ], "require": { "php": ">=5.3.0" }, "require-dev": { "phpunit/phpunit": "^9.3 \|\| ^5.7 \|\| ^4.8.35" }, "suggest": { "ext-event": "~1.0 for ExtEventLoop", "ext-pcntl": "For signal handling support when using the StreamSelectLoop", "ext-uv": "* for ExtUvLoop" }, "autoload": { "psr-4": { "React\\EventLoop\\": "src" } }, "autoload-dev": { "psr-4": { "React\\Tests\\EventLoop\\": "tests" } } } PK��t�Z�P�n9��n9��CHANGELOG.mdnu��[��# Changelog ## 1.2.0 (2021-07-11) A major new feature release, see [release announcement](https://clue.engineering/2021/announcing-reactphp-default-loop). * Feature: Introduce new concept of default loop with the new `Loop` class. (#226 by @WyriHaximus, #229, #231 and #232 by @clue) The `Loop` class exists as a convenient global accessor for the event loop. It provides all methods that exist on the `LoopInterface` as static methods and will automatically execute the loop at the end of the program: ```php $timer = Loop::addPeriodicTimer(0.1, function () { echo 'Tick' . PHP_EOL; }); Loop::addTimer(1.0, function () use ($timer) { Loop::cancelTimer($timer); echo 'Done' . PHP_EOL; }); ``` The explicit loop instructions are still valid and may still be useful in some applications, especially for a transition period towards the more concise style. The `Loop::get()` method can be used to get the currently active event loop instance. ```php // deprecated $loop = React\EventLoop\Factory::create(); // new $loop = React\EventLoop\Loop::get(); ``` * Minor documentation improvements and mark legacy extensions as deprecated. (#234 by @SimonFrings, #214 by @WyriHaximus and #233 and #235 by @nhedger) * Improve test suite, use GitHub actions for continuous integration (CI), update PHPUnit config and run tests on PHP 8. (#212 and #215 by @SimonFrings and #230 by @clue) ## 1.1.1 (2020-01-01) * Fix: Fix reporting connection refused errors with `ExtUvLoop` on Linux and `StreamSelectLoop` on Windows. (#207 and #208 by @clue) * Fix: Fix unsupported EventConfig and `SEGFAULT` on shutdown with `ExtEventLoop` on Windows. (#205 by @clue) * Fix: Prevent interval overflow for timers very far in the future with `ExtUvLoop`. (#196 by @PabloKowalczyk) * Fix: Check PCNTL functions for signal support instead of PCNTL extension with `StreamSelectLoop`. (#195 by @clue) * Add `.gitattributes` to exclude dev files from exports. (#201 by @reedy) * Improve test suite to fix testing `ExtUvLoop` on Travis, fix Travis CI builds, do not install `libuv` on legacy PHP setups, fix failing test cases due to inaccurate timers, run tests on Windows via Travis CI and run tests on PHP 7.4 and simplify test matrix and test setup. (#197 by @WyriHaximus and #202, #203, #204 and #209 by @clue) ## 1.1.0 (2019-02-07) * New UV based event loop (ext-uv). (#112 by @WyriHaximus) * Use high resolution timer on PHP 7.3+. (#182 by @clue) * Improve PCNTL signals by using async signal dispatching if available. (#179 by @CharlotteDunois) * Improve test suite and test suite set up. (#174 by @WyriHaximus, #181 by @clue) * Fix PCNTL signals edge case. (#183 by @clue) ## 1.0.0 (2018-07-11) * First stable LTS release, now following [SemVer](https://semver.org/). We'd like to emphasize that this component is production ready and battle-tested. We plan to support all long-term support (LTS) releases for at least 24 months, so you have a rock-solid foundation to build on top of. > Contains no other changes, so it's actually fully compatible with the v0.5.3 release. ## 0.5.3 (2018-07-09) * Improve performance by importing global functions. (#167 by @Ocramius) * Improve test suite by simplifying test bootstrap by using dev autoloader. (#169 by @lcobucci) * Minor internal changes to improved backward compatibility with PHP 5.3. (#166 by @Donatello-za) ## 0.5.2 (2018-04-24) * Feature: Improve memory consumption and runtime performance for `StreamSelectLoop` timers. (#164 by @clue) * Improve test suite by removing I/O dependency at `StreamSelectLoopTest` to fix Mac OS X tests. (#161 by @nawarian) ## 0.5.1 (2018-04-09) * Feature: New `ExtEvLoop` (PECL ext-ev) (#148 by @kaduev13) ## 0.5.0 (2018-04-05) A major feature release with a significant documentation overhaul and long overdue API cleanup! This update involves a number of BC breaks due to dropped support for deprecated functionality. We've tried hard to avoid BC breaks where possible and minimize impact otherwise. We expect that most consumers of this package will actually not be affected by any BC breaks, see below for more details. We realize that the changes listed below may seem overwhelming, but we've tried to be very clear about any possible BC breaks. Don't worry: In fact, all ReactPHP components are already compatible and support both this new release as well as providing backwards compatibility with the last release. * Feature / BC break: Add support for signal handling via new `LoopInterface::addSignal()` and `LoopInterface::removeSignal()` methods. (#104 by @WyriHaximus and #111 and #150 by @clue) ```php $loop->addSignal(SIGINT, function () { echo 'CTRL-C'; }); ``` * Feature: Significant documentation updates for `LoopInterface` and `Factory`. (#100, #119, #126, #127, #159 and #160 by @clue, #113 by @WyriHaximus and #81 and #91 by @jsor) * Feature: Add examples to ease getting started (#99, #100 and #125 by @clue, #59 by @WyriHaximus and #143 by @jsor) * Feature: Documentation for advanced timer concepts, such as monotonic time source vs wall-clock time and high precision timers with millisecond accuracy or below. (#130 and #157 by @clue) * Feature: Documentation for advanced stream concepts, such as edge-triggered event listeners and stream buffers and allow throwing Exception if stream resource is not supported. (#129 and #158 by @clue) * Feature: Throw `BadMethodCallException` on manual loop creation when required extension isn't installed. (#153 by @WyriHaximus) * Feature / BC break: First class support for legacy PHP 5.3 through PHP 7.2 and HHVM and remove all `callable` type hints for consistency reasons. (#141 and #151 by @clue) * BC break: Documentation for timer API and clean up unneeded timer API. (#102 by @clue) Remove `TimerInterface::cancel()`, use `LoopInterface::cancelTimer()` instead: ```php // old (method invoked on timer instance) $timer->cancel(); // already supported before: invoke method on loop instance $loop->cancelTimer($timer); ``` Remove unneeded `TimerInterface::setData()` and `TimerInterface::getData()`, use closure binding to add arbitrary data to timer instead: ```php // old (limited setData() and getData() only allows single variable) $name = 'Tester'; $timer = $loop->addTimer(1.0, function ($timer) { echo 'Hello ' . $timer->getData() . PHP_EOL; }); $timer->setData($name); // already supported before: closure binding allows any number of variables $name = 'Tester'; $loop->addTimer(1.0, function () use ($name) { echo 'Hello ' . $name . PHP_EOL; }); ``` Remove unneeded `TimerInterface::getLoop()`, use closure binding instead: ```php // old (getLoop() called on timer instance) $loop->addTimer(0.1, function ($timer) { $timer->getLoop()->stop(); }); // already supported before: use closure binding as usual $loop->addTimer(0.1, function () use ($loop) { $loop->stop(); }); ``` * BC break: Remove unneeded `LoopInterface::isTimerActive()` and `TimerInterface::isActive()` to reduce API surface. (#133 by @clue) ```php // old (method on timer instance or on loop instance) $timer->isActive(); $loop->isTimerActive($timer); ``` * BC break: Move `TimerInterface` one level up to `React\EventLoop\TimerInterface`. (#138 by @WyriHaximus) ```php // old (notice obsolete "Timer" namespace) assert($timer instanceof React\EventLoop\Timer\TimerInterface); // new assert($timer instanceof React\EventLoop\TimerInterface); ``` * BC break: Remove unneeded `LoopInterface::nextTick()` (and internal `NextTickQueue`), use `LoopInterface::futureTick()` instead. (#30 by @clue) ```php // old (removed) $loop->nextTick(function () { echo 'tick'; }); // already supported before $loop->futureTick(function () { echo 'tick'; }); ``` * BC break: Remove unneeded `$loop` argument for `LoopInterface::futureTick()` (and fix internal cyclic dependency). (#103 by @clue) ```php // old ($loop gets passed by default) $loop->futureTick(function ($loop) { $loop->stop(); }); // already supported before: use closure binding as usual $loop->futureTick(function () use ($loop) { $loop->stop(); }); ``` * BC break: Remove unneeded `LoopInterface::tick()`. (#72 by @jsor) ```php // old (removed) $loop->tick(); // suggested work around for testing purposes only $loop->futureTick(function () use ($loop) { $loop->stop(); }); ``` * BC break: Documentation for advanced stream API and clean up unneeded stream API. (#110 by @clue) Remove unneeded `$loop` argument for `LoopInterface::addReadStream()` and `LoopInterface::addWriteStream()`, use closure binding instead: ```php // old ($loop gets passed by default) $loop->addReadStream($stream, function ($stream, $loop) { $loop->removeReadStream($stream); }); // already supported before: use closure binding as usual $loop->addReadStream($stream, function ($stream) use ($loop) { $loop->removeReadStream($stream); }); ``` * BC break: Remove unneeded `LoopInterface::removeStream()` method, use `LoopInterface::removeReadStream()` and `LoopInterface::removeWriteStream()` instead. (#118 by @clue) ```php // old $loop->removeStream($stream); // already supported before $loop->removeReadStream($stream); $loop->removeWriteStream($stream); ``` * BC break: Rename `LibEventLoop` to `ExtLibeventLoop` and `LibEvLoop` to `ExtLibevLoop` for consistent naming for event loop implementations. (#128 by @clue) * BC break: Remove optional `EventBaseConfig` argument from `ExtEventLoop` and make its `FEATURE_FDS` enabled by default. (#156 by @WyriHaximus) * BC break: Mark all classes as final to discourage inheritance. (#131 by @clue) * Fix: Fix `ExtEventLoop` to keep track of stream resources (refcount) (#123 by @clue) * Fix: Ensure large timer interval does not overflow on 32bit systems (#132 by @clue) * Fix: Fix separately removing readable and writable side of stream when closing (#139 by @clue) * Fix: Properly clean up event watchers for `ext-event` and `ext-libev` (#149 by @clue) * Fix: Minor code cleanup and remove unneeded references (#145 by @seregazhuk) * Fix: Discourage outdated `ext-libevent` on PHP 7 (#62 by @cboden) * Improve test suite by adding forward compatibility with PHPUnit 6 and PHPUnit 5, lock Travis distro so new defaults will not break the build, improve test suite to be less fragile and increase test timeouts, test against PHP 7.2 and reduce fwrite() call length to one chunk. (#106 and #144 by @clue, #120 and #124 by @carusogabriel, #147 by nawarian and #92 by @kelunik) * A number of changes were originally planned for this release but have been backported to the last `v0.4.3` already: #74, #76, #79, #81 (refs #65, #66, #67), #88 and #93 ## 0.4.3 (2017-04-27) * Bug fix: Bugfix in the usage sample code #57 (@dandelionred) * Improvement: Remove branch-alias definition #53 (@WyriHaximus) * Improvement: StreamSelectLoop: Use fresh time so Timers added during stream events are accurate #51 (@andrewminerd) * Improvement: Avoid deprecation warnings in test suite due to deprecation of getMock() in PHPUnit #68 (@martinschroeder) * Improvement: Add PHPUnit 4.8 to require-dev #69 (@shaunbramley) * Improvement: Increase test timeouts for HHVM and unify timeout handling #70 (@clue) * Improvement: Travis improvements (backported from #74) #75 (@clue) * Improvement: Test suite now uses socket pairs instead of memory streams #66 (@martinschroeder) * Improvement: StreamSelectLoop: Test suite uses signal constant names in data provider #67 (@martinschroeder) * Improvement: ExtEventLoop: No longer suppress all errors #65 (@mamciek) * Improvement: Readme cleanup #89 (@jsor) * Improvement: Restructure and improve README #90 (@jsor) * Bug fix: StreamSelectLoop: Fix erroneous zero-time sleep (backport to 0.4) #94 (@jsor) ## 0.4.2 (2016-03-07) * Bug fix: No longer error when signals sent to StreamSelectLoop * Support HHVM and PHP7 (@ondrejmirtes, @cebe) * Feature: Added support for EventConfig for ExtEventLoop (@steverhoades) * Bug fix: Fixed an issue loading loop extension libs via autoloader (@czarpino) ## 0.4.1 (2014-04-13) * Bug fix: null timeout in StreamSelectLoop causing 100% CPU usage (@clue) * Bug fix: v0.3.4 changes merged for v0.4.1 ## 0.4.0 (2014-02-02) * Feature: Added `EventLoopInterface::nextTick()`, implemented in all event loops (@jmalloc) * Feature: Added `EventLoopInterface::futureTick()`, implemented in all event loops (@jmalloc) * Feature: Added `ExtEventLoop` implementation using pecl/event (@jmalloc) * BC break: Bump minimum PHP version to PHP 5.4, remove 5.3 specific hacks * BC break: New method: `EventLoopInterface::nextTick()` * BC break: New method: `EventLoopInterface::futureTick()` * Dependency: Autoloading and filesystem structure now PSR-4 instead of PSR-0 ## 0.3.5 (2016-12-28) This is a compatibility release that eases upgrading to the v0.4 release branch. You should consider upgrading to the v0.4 release branch. * Feature: Cap min timer interval at 1µs, thus improving compatibility with v0.4 (#47 by @clue) ## 0.3.4 (2014-03-30) * Bug fix: Changed StreamSelectLoop to use non-blocking behavior on tick() (@astephens25) ## 0.3.3 (2013-07-08) * Bug fix: No error on removing non-existent streams (@clue) * Bug fix: Do not silently remove feof listeners in `LibEvLoop` ## 0.3.0 (2013-04-14) * BC break: New timers API (@nrk) * BC break: Remove check on return value from stream callbacks (@nrk) ## 0.2.7 (2013-01-05) * Bug fix: Fix libevent timers with PHP 5.3 * Bug fix: Fix libevent timer cancellation (@nrk) ## 0.2.6 (2012-12-26) * Bug fix: Plug memory issue in libevent timers (@cameronjacobson) * Bug fix: Correctly pause LibEvLoop on stop() ## 0.2.3 (2012-11-14) * Feature: LibEvLoop, integration of `php-libev` ## 0.2.0 (2012-09-10) * Version bump ## 0.1.1 (2012-07-12) * Version bump ## 0.1.0 (2012-07-11) * First tagged release PK��t�Z��src/ExtEvLoop.phpnu��[��<?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]); } } } PK��t�Z� "��"��src/SignalsHandler.phpnu��[��<?php namespace React\EventLoop; /* * @internal / final class SignalsHandler { private $signals = array(); public function add($signal, $listener) { if (!isset($this->signals[$signal])) { $this->signals[$signal] = array(); } if (\in_array($listener, $this->signals[$signal])) { return; } $this->signals[$signal][] = $listener; } public function remove($signal, $listener) { if (!isset($this->signals[$signal])) { return; } $index = \array_search($listener, $this->signals[$signal], true); unset($this->signals[$signal][$index]); if (isset($this->signals[$signal]) && \count($this->signals[$signal]) === 0) { unset($this->signals[$signal]); } } public function call($signal) { if (!isset($this->signals[$signal])) { return; } foreach ($this->signals[$signal] as $listener) { \call_user_func($listener, $signal); } } public function count($signal) { if (!isset($this->signals[$signal])) { return 0; } return \count($this->signals[$signal]); } public function isEmpty() { return !$this->signals; } } PK��t�Z�O�3 ��3 ��src/ExtEventLoop.phpnu��[��<?php namespace React\EventLoop; use BadMethodCallException; use Event; use EventBase; use React\EventLoop\Tick\FutureTickQueue; use React\EventLoop\Timer\Timer; use SplObjectStorage; /* * An `ext-event` based event loop. * * This uses the [`event` PECL extension](https://pecl.php.net/package/event), * that provides an interface to `libevent` library. * `libevent` itself supports a number of system-specific backends (epoll, kqueue). * * This loop is known to work with PHP 5.4 through PHP 7+. * * @link https://pecl.php.net/package/event / final class ExtEventLoop implements LoopInterface { private $eventBase; private $futureTickQueue; private $timerCallback; private $timerEvents; private $streamCallback; private $readEvents = array(); private $writeEvents = array(); private $readListeners = array(); private $writeListeners = array(); private $readRefs = array(); private $writeRefs = array(); private $running; private $signals; private $signalEvents = array(); public function __construct() { if (!\class_exists('EventBase', false)) { throw new BadMethodCallException('Cannot create ExtEventLoop, ext-event extension missing'); } // support arbitrary file descriptors and not just sockets // Windows only has limited file descriptor support, so do not require this (will fail otherwise) // @link http://www.wangafu.net/~nickm/libevent-book/Ref2_eventbase.html#_setting_up_a_complicated_event_base $config = new \EventConfig(); if (\DIRECTORY_SEPARATOR !== '\\') { $config->requireFeatures(\EventConfig::FEATURE_FDS); } $this->eventBase = new EventBase($config); $this->futureTickQueue = new FutureTickQueue(); $this->timerEvents = new SplObjectStorage(); $this->signals = new SignalsHandler(); $this->createTimerCallback(); $this->createStreamCallback(); } public function __destruct() { // explicitly clear all references to Event objects to prevent SEGFAULTs on Windows foreach ($this->timerEvents as $timer) { $this->timerEvents->detach($timer); } $this->readEvents = array(); $this->writeEvents = array(); } public function addReadStream($stream, $listener) { $key = (int) $stream; if (isset($this->readListeners[$key])) { return; } $event = new Event($this->eventBase, $stream, Event::PERSIST \| Event::READ, $this->streamCallback); $event->add(); $this->readEvents[$key] = $event; $this->readListeners[$key] = $listener; // ext-event does not increase refcount on stream resources for PHP 7+ // manually keep track of stream resource to prevent premature garbage collection if (\PHP_VERSION_ID >= 70000) { $this->readRefs[$key] = $stream; } } public function addWriteStream($stream, $listener) { $key = (int) $stream; if (isset($this->writeListeners[$key])) { return; } $event = new Event($this->eventBase, $stream, Event::PERSIST \| Event::WRITE, $this->streamCallback); $event->add(); $this->writeEvents[$key] = $event; $this->writeListeners[$key] = $listener; // ext-event does not increase refcount on stream resources for PHP 7+ // manually keep track of stream resource to prevent premature garbage collection if (\PHP_VERSION_ID >= 70000) { $this->writeRefs[$key] = $stream; } } public function removeReadStream($stream) { $key = (int) $stream; if (isset($this->readEvents[$key])) { $this->readEvents[$key]->free(); unset( $this->readEvents[$key], $this->readListeners[$key], $this->readRefs[$key] ); } } public function removeWriteStream($stream) { $key = (int) $stream; if (isset($this->writeEvents[$key])) { $this->writeEvents[$key]->free(); unset( $this->writeEvents[$key], $this->writeListeners[$key], $this->writeRefs[$key] ); } } public function addTimer($interval, $callback) { $timer = new Timer($interval, $callback, false); $this->scheduleTimer($timer); return $timer; } public function addPeriodicTimer($interval, $callback) { $timer = new Timer($interval, $callback, true); $this->scheduleTimer($timer); return $timer; } public function cancelTimer(TimerInterface $timer) { if ($this->timerEvents->contains($timer)) { $this->timerEvents[$timer]->free(); $this->timerEvents->detach($timer); } } public function futureTick($listener) { $this->futureTickQueue->add($listener); } public function addSignal($signal, $listener) { $this->signals->add($signal, $listener); if (!isset($this->signalEvents[$signal])) { $this->signalEvents[$signal] = Event::signal($this->eventBase, $signal, array($this->signals, 'call')); $this->signalEvents[$signal]->add(); } } public function removeSignal($signal, $listener) { $this->signals->remove($signal, $listener); if (isset($this->signalEvents[$signal]) && $this->signals->count($signal) === 0) { $this->signalEvents[$signal]->free(); unset($this->signalEvents[$signal]); } } public function run() { $this->running = true; while ($this->running) { $this->futureTickQueue->tick(); $flags = EventBase::LOOP_ONCE; if (!$this->running \|\| !$this->futureTickQueue->isEmpty()) { $flags \|= EventBase::LOOP_NONBLOCK; } elseif (!$this->readEvents && !$this->writeEvents && !$this->timerEvents->count() && $this->signals->isEmpty()) { break; } $this->eventBase->loop($flags); } } public function stop() { $this->running = false; } /* * Schedule a timer for execution. * * @param TimerInterface $timer / private function scheduleTimer(TimerInterface $timer) { $flags = Event::TIMEOUT; if ($timer->isPeriodic()) { $flags \|= Event::PERSIST; } $event = new Event($this->eventBase, -1, $flags, $this->timerCallback, $timer); $this->timerEvents[$timer] = $event; $event->add($timer->getInterval()); } /* * Create a callback used as the target of timer events. * * A reference is kept to the callback for the lifetime of the loop * to prevent "Cannot destroy active lambda function" fatal error from * the event extension. / private function createTimerCallback() { $timers = $this->timerEvents; $this->timerCallback = function ($_, $__, $timer) use ($timers) { \call_user_func($timer->getCallback(), $timer); if (!$timer->isPeriodic() && $timers->contains($timer)) { $this->cancelTimer($timer); } }; } /* * Create a callback used as the target of stream events. * * A reference is kept to the callback for the lifetime of the loop * to prevent "Cannot destroy active lambda function" fatal error from * the event extension. / private function createStreamCallback() { $read =& $this->readListeners; $write =& $this->writeListeners; $this->streamCallback = function ($stream, $flags) use (&$read, &$write) { $key = (int) $stream; if (Event::READ === (Event::READ & $flags) && isset($read[$key])) { \call_user_func($read[$key], $stream); } if (Event::WRITE === (Event::WRITE & $flags) && isset($write[$key])) { \call_user_func($write[$key], $stream); } }; } } PK��t�Zה������src/StreamSelectLoop.phpnu��[��<?php namespace React\EventLoop; use React\EventLoop\Tick\FutureTickQueue; use React\EventLoop\Timer\Timer; use React\EventLoop\Timer\Timers; /* * A `stream_select()` based event loop. * * This uses the [`stream_select()`](https://www.php.net/manual/en/function.stream-select.php) * function and is the only implementation which works out of the box with PHP. * * This event loop works out of the box on PHP 5.4 through PHP 7+ and HHVM. * This means that no installation is required and this library works on all * platforms and supported PHP versions. * Accordingly, the [`Factory`](#factory) will use this event loop by default if * you do not install any of the event loop extensions listed below. * * Under the hood, it does a simple `select` system call. * This system call is limited to the maximum file descriptor number of * `FD_SETSIZE` (platform dependent, commonly 1024) and scales with `O(m)` * (`m` being the maximum file descriptor number passed). * This means that you may run into issues when handling thousands of streams * concurrently and you may want to look into using one of the alternative * event loop implementations listed below in this case. * If your use case is among the many common use cases that involve handling only * dozens or a few hundred streams at once, then this event loop implementation * performs really well. * * If you want to use signal handling (see also [`addSignal()`](#addsignal) below), * this event loop implementation requires `ext-pcntl`. * This extension is only available for Unix-like platforms and does not support * Windows. * It is commonly installed as part of many PHP distributions. * If this extension is missing (or you're running on Windows), signal handling is * not supported and throws a `BadMethodCallException` instead. * * This event loop is known to rely on wall-clock time to schedule future timers * when using any version before PHP 7.3, because a monotonic time source is * only available as of PHP 7.3 (`hrtime()`). * While this does not affect many common use cases, this is an important * distinction for programs that rely on a high time precision or on systems * that are subject to discontinuous time adjustments (time jumps). * This means that if you schedule a timer to trigger in 30s on PHP < 7.3 and * then adjust your system time forward by 20s, the timer may trigger in 10s. * See also [`addTimer()`](#addtimer) for more details. * * @link https://www.php.net/manual/en/function.stream-select.php / final class StreamSelectLoop implements LoopInterface { /* @internal / const MICROSECONDS_PER_SECOND = 1000000; private $futureTickQueue; private $timers; private $readStreams = array(); private $readListeners = array(); private $writeStreams = array(); private $writeListeners = array(); private $running; private $pcntl = false; private $pcntlPoll = false; private $signals; public function __construct() { $this->futureTickQueue = new FutureTickQueue(); $this->timers = new Timers(); $this->pcntl = \function_exists('pcntl_signal') && \function_exists('pcntl_signal_dispatch'); $this->pcntlPoll = $this->pcntl && !\function_exists('pcntl_async_signals'); $this->signals = new SignalsHandler(); // prefer async signals if available (PHP 7.1+) or fall back to dispatching on each tick if ($this->pcntl && !$this->pcntlPoll) { \pcntl_async_signals(true); } } public function addReadStream($stream, $listener) { $key = (int) $stream; if (!isset($this->readStreams[$key])) { $this->readStreams[$key] = $stream; $this->readListeners[$key] = $listener; } } public function addWriteStream($stream, $listener) { $key = (int) $stream; if (!isset($this->writeStreams[$key])) { $this->writeStreams[$key] = $stream; $this->writeListeners[$key] = $listener; } } public function removeReadStream($stream) { $key = (int) $stream; unset( $this->readStreams[$key], $this->readListeners[$key] ); } public function removeWriteStream($stream) { $key = (int) $stream; unset( $this->writeStreams[$key], $this->writeListeners[$key] ); } public function addTimer($interval, $callback) { $timer = new Timer($interval, $callback, false); $this->timers->add($timer); return $timer; } public function addPeriodicTimer($interval, $callback) { $timer = new Timer($interval, $callback, true); $this->timers->add($timer); return $timer; } public function cancelTimer(TimerInterface $timer) { $this->timers->cancel($timer); } public function futureTick($listener) { $this->futureTickQueue->add($listener); } public function addSignal($signal, $listener) { if ($this->pcntl === false) { throw new \BadMethodCallException('Event loop feature "signals" isn\'t supported by the "StreamSelectLoop"'); } $first = $this->signals->count($signal) === 0; $this->signals->add($signal, $listener); if ($first) { \pcntl_signal($signal, array($this->signals, 'call')); } } public function removeSignal($signal, $listener) { if (!$this->signals->count($signal)) { return; } $this->signals->remove($signal, $listener); if ($this->signals->count($signal) === 0) { \pcntl_signal($signal, \SIG_DFL); } } public function run() { $this->running = true; while ($this->running) { $this->futureTickQueue->tick(); $this->timers->tick(); // Future-tick queue has pending callbacks ... if (!$this->running \|\| !$this->futureTickQueue->isEmpty()) { $timeout = 0; // There is a pending timer, only block until it is due ... } elseif ($scheduledAt = $this->timers->getFirst()) { $timeout = $scheduledAt - $this->timers->getTime(); if ($timeout < 0) { $timeout = 0; } else { // Convert float seconds to int microseconds. // Ensure we do not exceed maximum integer size, which may // cause the loop to tick once every ~35min on 32bit systems. $timeout = self::MICROSECONDS_PER_SECOND; $timeout = $timeout > \PHP_INT_MAX ? \PHP_INT_MAX : (int)$timeout; } // The only possible event is stream or signal activity, so wait forever ... } elseif ($this->readStreams \|\| $this->writeStreams \|\| !$this->signals->isEmpty()) { $timeout = null; // There's nothing left to do ... } else { break; } $this->waitForStreamActivity($timeout); } } public function stop() { $this->running = false; } /** * Wait/check for stream activity, or until the next timer is due. * * @param integer\|null $timeout Activity timeout in microseconds, or null to wait forever. / private function waitForStreamActivity($timeout) { $read = $this->readStreams; $write = $this->writeStreams; $available = $this->streamSelect($read, $write, $timeout); if ($this->pcntlPoll) { \pcntl_signal_dispatch(); } if (false === $available) { // if a system call has been interrupted, // we cannot rely on it's outcome return; } foreach ($read as $stream) { $key = (int) $stream; if (isset($this->readListeners[$key])) { \call_user_func($this->readListeners[$key], $stream); } } foreach ($write as $stream) { $key = (int) $stream; if (isset($this->writeListeners[$key])) { \call_user_func($this->writeListeners[$key], $stream); } } } /* * Emulate a stream_select() implementation that does not break when passed * empty stream arrays. * * @param array $read An array of read streams to select upon. * @param array $write An array of write streams to select upon. * @param int\|null $timeout Activity timeout in microseconds, or null to wait forever. * * @return int\|false The total number of streams that are ready for read/write. * Can return false if stream_select() is interrupted by a signal. / private function streamSelect(array &$read, array &$write, $timeout) { if ($read \|\| $write) { // We do not usually use or expose the `exceptfds` parameter passed to the underlying `select`. // However, Windows does not report failed connection attempts in `writefds` passed to `select` like most other platforms. // Instead, it uses `writefds` only for successful connection attempts and `exceptfds` for failed connection attempts. // We work around this by adding all sockets that look like a pending connection attempt to `exceptfds` automatically on Windows and merge it back later. // This ensures the public API matches other loop implementations across all platforms (see also test suite or rather test matrix). // Lacking better APIs, every write-only socket that has not yet read any data is assumed to be in a pending connection attempt state. // @link https://docs.microsoft.com/de-de/windows/win32/api/winsock2/nf-winsock2-select $except = null; if (\DIRECTORY_SEPARATOR === '\\') { $except = array(); foreach ($write as $key => $socket) { if (!isset($read[$key]) && @\ftell($socket) === 0) { $except[$key] = $socket; } } } // suppress warnings that occur, when stream_select is interrupted by a signal $ret = @\stream_select($read, $write, $except, $timeout === null ? null : 0, $timeout); if ($except) { $write = \array_merge($write, $except); } return $ret; } if ($timeout > 0) { \usleep($timeout); } elseif ($timeout === null) { // wait forever (we only reach this if we're only awaiting signals) // this may be interrupted and return earlier when a signal is received \sleep(PHP_INT_MAX); } return 0; } } PK��t�Zy[�$�!��!��src/ExtLibeventLoop.phpnu��[��<?php namespace React\EventLoop; use BadMethodCallException; use Event; use EventBase; use React\EventLoop\Tick\FutureTickQueue; use React\EventLoop\Timer\Timer; use SplObjectStorage; /* * [Deprecated] An `ext-libevent` based event loop. * * This uses the [`libevent` PECL extension](https://pecl.php.net/package/libevent), * that provides an interface to `libevent` library. * `libevent` itself supports a number of system-specific backends (epoll, kqueue). * * This event loop does only work with PHP 5. * An [unofficial update](https://github.com/php/pecl-event-libevent/pull/2) for * PHP 7 does exist, but it is known to cause regular crashes due to `SEGFAULT`s. * To reiterate: Using this event loop on PHP 7 is not recommended. * Accordingly, the [`Factory`](#factory) will not try to use this event loop on * PHP 7. * * This event loop is known to trigger a readable listener only if * the stream becomes readable (edge-triggered) and may not trigger if the * stream has already been readable from the beginning. * This also implies that a stream may not be recognized as readable when data * is still left in PHP's internal stream buffers. * As such, it's recommended to use `stream_set_read_buffer($stream, 0);` * to disable PHP's internal read buffer in this case. * See also [`addReadStream()`](#addreadstream) for more details. * * @link https://pecl.php.net/package/libevent * @deprecated 1.2.0, use [`ExtEventLoop`](#exteventloop) instead. / final class ExtLibeventLoop implements LoopInterface { /* @internal / const MICROSECONDS_PER_SECOND = 1000000; private $eventBase; private $futureTickQueue; private $timerCallback; private $timerEvents; private $streamCallback; private $readEvents = array(); private $writeEvents = array(); private $readListeners = array(); private $writeListeners = array(); private $running; private $signals; private $signalEvents = array(); public function __construct() { if (!\function_exists('event_base_new')) { throw new BadMethodCallException('Cannot create ExtLibeventLoop, ext-libevent extension missing'); } $this->eventBase = \event_base_new(); $this->futureTickQueue = new FutureTickQueue(); $this->timerEvents = new SplObjectStorage(); $this->signals = new SignalsHandler(); $this->createTimerCallback(); $this->createStreamCallback(); } public function addReadStream($stream, $listener) { $key = (int) $stream; if (isset($this->readListeners[$key])) { return; } $event = \event_new(); \event_set($event, $stream, \EV_PERSIST \| \EV_READ, $this->streamCallback); \event_base_set($event, $this->eventBase); \event_add($event); $this->readEvents[$key] = $event; $this->readListeners[$key] = $listener; } public function addWriteStream($stream, $listener) { $key = (int) $stream; if (isset($this->writeListeners[$key])) { return; } $event = \event_new(); \event_set($event, $stream, \EV_PERSIST \| \EV_WRITE, $this->streamCallback); \event_base_set($event, $this->eventBase); \event_add($event); $this->writeEvents[$key] = $event; $this->writeListeners[$key] = $listener; } public function removeReadStream($stream) { $key = (int) $stream; if (isset($this->readListeners[$key])) { $event = $this->readEvents[$key]; \event_del($event); \event_free($event); unset( $this->readEvents[$key], $this->readListeners[$key] ); } } public function removeWriteStream($stream) { $key = (int) $stream; if (isset($this->writeListeners[$key])) { $event = $this->writeEvents[$key]; \event_del($event); \event_free($event); unset( $this->writeEvents[$key], $this->writeListeners[$key] ); } } public function addTimer($interval, $callback) { $timer = new Timer($interval, $callback, false); $this->scheduleTimer($timer); return $timer; } public function addPeriodicTimer($interval, $callback) { $timer = new Timer($interval, $callback, true); $this->scheduleTimer($timer); return $timer; } public function cancelTimer(TimerInterface $timer) { if ($this->timerEvents->contains($timer)) { $event = $this->timerEvents[$timer]; \event_del($event); \event_free($event); $this->timerEvents->detach($timer); } } public function futureTick($listener) { $this->futureTickQueue->add($listener); } public function addSignal($signal, $listener) { $this->signals->add($signal, $listener); if (!isset($this->signalEvents[$signal])) { $this->signalEvents[$signal] = \event_new(); \event_set($this->signalEvents[$signal], $signal, \EV_PERSIST \| \EV_SIGNAL, array($this->signals, 'call')); \event_base_set($this->signalEvents[$signal], $this->eventBase); \event_add($this->signalEvents[$signal]); } } public function removeSignal($signal, $listener) { $this->signals->remove($signal, $listener); if (isset($this->signalEvents[$signal]) && $this->signals->count($signal) === 0) { \event_del($this->signalEvents[$signal]); \event_free($this->signalEvents[$signal]); unset($this->signalEvents[$signal]); } } public function run() { $this->running = true; while ($this->running) { $this->futureTickQueue->tick(); $flags = \EVLOOP_ONCE; if (!$this->running \|\| !$this->futureTickQueue->isEmpty()) { $flags \|= \EVLOOP_NONBLOCK; } elseif (!$this->readEvents && !$this->writeEvents && !$this->timerEvents->count() && $this->signals->isEmpty()) { break; } \event_base_loop($this->eventBase, $flags); } } public function stop() { $this->running = false; } /* * Schedule a timer for execution. * * @param TimerInterface $timer / private function scheduleTimer(TimerInterface $timer) { $this->timerEvents[$timer] = $event = \event_timer_new(); \event_timer_set($event, $this->timerCallback, $timer); \event_base_set($event, $this->eventBase); \event_add($event, $timer->getInterval() self::MICROSECONDS_PER_SECOND); } /** * Create a callback used as the target of timer events. * * A reference is kept to the callback for the lifetime of the loop * to prevent "Cannot destroy active lambda function" fatal error from * the event extension. / private function createTimerCallback() { $that = $this; $timers = $this->timerEvents; $this->timerCallback = function ($_, $__, $timer) use ($timers, $that) { \call_user_func($timer->getCallback(), $timer); // Timer already cancelled ... if (!$timers->contains($timer)) { return; } // Reschedule periodic timers ... if ($timer->isPeriodic()) { \event_add( $timers[$timer], $timer->getInterval() ExtLibeventLoop::MICROSECONDS_PER_SECOND ); // Clean-up one shot timers ... } else { $that->cancelTimer($timer); } }; } /** * Create a callback used as the target of stream events. * * A reference is kept to the callback for the lifetime of the loop * to prevent "Cannot destroy active lambda function" fatal error from * the event extension. / private function createStreamCallback() { $read =& $this->readListeners; $write =& $this->writeListeners; $this->streamCallback = function ($stream, $flags) use (&$read, &$write) { $key = (int) $stream; if (\EV_READ === (\EV_READ & $flags) && isset($read[$key])) { \call_user_func($read[$key], $stream); } if (\EV_WRITE === (\EV_WRITE & $flags) && isset($write[$key])) { \call_user_func($write[$key], $stream); } }; } } PK��t�Z�٥:O$��O$��src/ExtUvLoop.phpnu��[��<?php namespace React\EventLoop; use React\EventLoop\Tick\FutureTickQueue; use React\EventLoop\Timer\Timer; use SplObjectStorage; /* * An `ext-uv` based event loop. * * This loop uses the [`uv` PECL extension](https://pecl.php.net/package/uv), * that provides an interface to `libuv` library. * `libuv` itself supports a number of system-specific backends (epoll, kqueue). * * This loop is known to work with PHP 7+. * * @see https://github.com/bwoebi/php-uv / final class ExtUvLoop implements LoopInterface { private $uv; private $futureTickQueue; private $timers; private $streamEvents = array(); private $readStreams = array(); private $writeStreams = array(); private $running; private $signals; private $signalEvents = array(); private $streamListener; public function __construct() { if (!\function_exists('uv_loop_new')) { throw new \BadMethodCallException('Cannot create LibUvLoop, ext-uv extension missing'); } $this->uv = \uv_loop_new(); $this->futureTickQueue = new FutureTickQueue(); $this->timers = new SplObjectStorage(); $this->streamListener = $this->createStreamListener(); $this->signals = new SignalsHandler(); } /* * Returns the underlying ext-uv event loop. (Internal ReactPHP use only.) * * @internal * * @return resource / public function getUvLoop() { return $this->uv; } /* * {@inheritdoc} / public function addReadStream($stream, $listener) { if (isset($this->readStreams[(int) $stream])) { return; } $this->readStreams[(int) $stream] = $listener; $this->addStream($stream); } /* * {@inheritdoc} / public function addWriteStream($stream, $listener) { if (isset($this->writeStreams[(int) $stream])) { return; } $this->writeStreams[(int) $stream] = $listener; $this->addStream($stream); } /* * {@inheritdoc} / public function removeReadStream($stream) { if (!isset($this->streamEvents[(int) $stream])) { return; } unset($this->readStreams[(int) $stream]); $this->removeStream($stream); } /* * {@inheritdoc} / public function removeWriteStream($stream) { if (!isset($this->streamEvents[(int) $stream])) { return; } unset($this->writeStreams[(int) $stream]); $this->removeStream($stream); } /* * {@inheritdoc} / 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); } }; $event = \uv_timer_init($this->uv); $this->timers->attach($timer, $event); \uv_timer_start( $event, $this->convertFloatSecondsToMilliseconds($interval), 0, $callback ); return $timer; } /* * {@inheritdoc} / public function addPeriodicTimer($interval, $callback) { $timer = new Timer($interval, $callback, true); $callback = function () use ($timer) { \call_user_func($timer->getCallback(), $timer); }; $interval = $this->convertFloatSecondsToMilliseconds($interval); $event = \uv_timer_init($this->uv); $this->timers->attach($timer, $event); \uv_timer_start( $event, $interval, (int) $interval === 0 ? 1 : $interval, $callback ); return $timer; } /* * {@inheritdoc} / public function cancelTimer(TimerInterface $timer) { if (isset($this->timers[$timer])) { @\uv_timer_stop($this->timers[$timer]); $this->timers->detach($timer); } } /* * {@inheritdoc} / public function futureTick($listener) { $this->futureTickQueue->add($listener); } public function addSignal($signal, $listener) { $this->signals->add($signal, $listener); if (!isset($this->signalEvents[$signal])) { $signals = $this->signals; $this->signalEvents[$signal] = \uv_signal_init($this->uv); \uv_signal_start($this->signalEvents[$signal], function () use ($signals, $signal) { $signals->call($signal); }, $signal); } } public function removeSignal($signal, $listener) { $this->signals->remove($signal, $listener); if (isset($this->signalEvents[$signal]) && $this->signals->count($signal) === 0) { \uv_signal_stop($this->signalEvents[$signal]); unset($this->signalEvents[$signal]); } } /* * {@inheritdoc} / 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(); // Use UV::RUN_ONCE when there are only I/O events active in the loop and block until one of those triggers, // otherwise use UV::RUN_NOWAIT. // @link http://docs.libuv.org/en/v1.x/loop.html#c.uv_run $flags = \UV::RUN_ONCE; if ($wasJustStopped \|\| $hasPendingCallbacks) { $flags = \UV::RUN_NOWAIT; } elseif ($nothingLeftToDo) { break; } \uv_run($this->uv, $flags); } } /* * {@inheritdoc} / public function stop() { $this->running = false; } private function addStream($stream) { if (!isset($this->streamEvents[(int) $stream])) { $this->streamEvents[(int)$stream] = \uv_poll_init_socket($this->uv, $stream); } if ($this->streamEvents[(int) $stream] !== false) { $this->pollStream($stream); } } private function removeStream($stream) { if (!isset($this->streamEvents[(int) $stream])) { return; } if (!isset($this->readStreams[(int) $stream]) && !isset($this->writeStreams[(int) $stream])) { \uv_poll_stop($this->streamEvents[(int) $stream]); \uv_close($this->streamEvents[(int) $stream]); unset($this->streamEvents[(int) $stream]); return; } $this->pollStream($stream); } private function pollStream($stream) { if (!isset($this->streamEvents[(int) $stream])) { return; } $flags = 0; if (isset($this->readStreams[(int) $stream])) { $flags \|= \UV::READABLE; } if (isset($this->writeStreams[(int) $stream])) { $flags \|= \UV::WRITABLE; } \uv_poll_start($this->streamEvents[(int) $stream], $flags, $this->streamListener); } /* * Create a stream listener * * @return callable Returns a callback / private function createStreamListener() { $callback = function ($event, $status, $events, $stream) { // libuv automatically stops polling on error, re-enable polling to match other loop implementations if ($status !== 0) { $this->pollStream($stream); // libuv may report no events on error, but this should still invoke stream listeners to report closed connections // re-enable both readable and writable, correct listeners will be checked below anyway if ($events === 0) { $events = \UV::READABLE \| \UV::WRITABLE; } } if (isset($this->readStreams[(int) $stream]) && ($events & \UV::READABLE)) { \call_user_func($this->readStreams[(int) $stream], $stream); } if (isset($this->writeStreams[(int) $stream]) && ($events & \UV::WRITABLE)) { \call_user_func($this->writeStreams[(int) $stream], $stream); } }; return $callback; } /* * @param float $interval * @return int / private function convertFloatSecondsToMilliseconds($interval) { if ($interval < 0) { return 0; } $maxValue = (int) (\PHP_INT_MAX / 1000); $intInterval = (int) $interval; if (($intInterval <= 0 && $interval > 1) \|\| $intInterval >= $maxValue) { throw new \InvalidArgumentException( "Interval overflow, value must be lower than '{$maxValue}', but '{$interval}' passed." ); } return (int) \floor($interval 1000); } } PK��t�Z-@�w��w��src/Timer/Timers.phpnu��[��<?php namespace React\EventLoop\Timer; use React\EventLoop\TimerInterface; /** * A scheduler implementation that can hold multiple timer instances * * This class should only be used internally, see TimerInterface instead. * * @see TimerInterface * @internal / final class Timers { private $time; private $timers = array(); private $schedule = array(); private $sorted = true; private $useHighResolution; public function __construct() { // prefer high-resolution timer, available as of PHP 7.3+ $this->useHighResolution = \function_exists('hrtime'); } public function updateTime() { return $this->time = $this->useHighResolution ? \hrtime(true) 1e-9 : \microtime(true); } public function getTime() { return $this->time ?: $this->updateTime(); } public function add(TimerInterface $timer) { $id = \spl_object_hash($timer); $this->timers[$id] = $timer; $this->schedule[$id] = $timer->getInterval() + $this->updateTime(); $this->sorted = false; } public function contains(TimerInterface $timer) { return isset($this->timers[\spl_object_hash($timer)]); } public function cancel(TimerInterface $timer) { $id = \spl_object_hash($timer); unset($this->timers[$id], $this->schedule[$id]); } public function getFirst() { // ensure timers are sorted to simply accessing next (first) one if (!$this->sorted) { $this->sorted = true; \asort($this->schedule); } return \reset($this->schedule); } public function isEmpty() { return \count($this->timers) === 0; } public function tick() { // ensure timers are sorted so we can execute in order if (!$this->sorted) { $this->sorted = true; \asort($this->schedule); } $time = $this->updateTime(); foreach ($this->schedule as $id => $scheduled) { // schedule is ordered, so loop until first timer that is not scheduled for execution now if ($scheduled >= $time) { break; } // skip any timers that are removed while we process the current schedule if (!isset($this->schedule[$id]) \|\| $this->schedule[$id] !== $scheduled) { continue; } $timer = $this->timers[$id]; \call_user_func($timer->getCallback(), $timer); // re-schedule if this is a periodic timer and it has not been cancelled explicitly already if ($timer->isPeriodic() && isset($this->timers[$id])) { $this->schedule[$id] = $timer->getInterval() + $time; $this->sorted = false; } else { unset($this->timers[$id], $this->schedule[$id]); } } } } PK��t�Z�w��src/Timer/Timer.phpnu��[��<?php namespace React\EventLoop\Timer; use React\EventLoop\TimerInterface; /** * The actual connection implementation for TimerInterface * * This class should only be used internally, see TimerInterface instead. * * @see TimerInterface * @internal / final class Timer implements TimerInterface { const MIN_INTERVAL = 0.000001; private $interval; private $callback; private $periodic; /* * Constructor initializes the fields of the Timer * * @param float $interval The interval after which this timer will execute, in seconds * @param callable $callback The callback that will be executed when this timer elapses * @param bool $periodic Whether the time is periodic / public function __construct($interval, $callback, $periodic = false) { if ($interval < self::MIN_INTERVAL) { $interval = self::MIN_INTERVAL; } $this->interval = (float) $interval; $this->callback = $callback; $this->periodic = (bool) $periodic; } public function getInterval() { return $this->interval; } public function getCallback() { return $this->callback; } public function isPeriodic() { return $this->periodic; } } PK��t�Z�L��H��H��src/LoopInterface.phpnu��[��<?php namespace React\EventLoop; interface LoopInterface { /* * [Advanced] Register a listener to be notified when a stream is ready to read. * * Note that this low-level API is considered advanced usage. * Most use cases should probably use the higher-level * [readable Stream API](https://github.com/reactphp/stream#readablestreaminterface) * instead. * * The first parameter MUST be a valid stream resource that supports * checking whether it is ready to read by this loop implementation. * A single stream resource MUST NOT be added more than once. * Instead, either call [`removeReadStream()`](#removereadstream) first or * react to this event with a single listener and then dispatch from this * listener. This method MAY throw an `Exception` if the given resource type * is not supported by this loop implementation. * * The listener callback function MUST be able to accept a single parameter, * the stream resource added by this method or you MAY use a function which * has no parameters at all. * * The listener callback function MUST NOT throw an `Exception`. * The return value of the listener callback function will be ignored and has * no effect, so for performance reasons you're recommended to not return * any excessive data structures. * * If you want to access any variables within your callback function, you * can bind arbitrary data to a callback closure like this: * * ```php * $loop->addReadStream($stream, function ($stream) use ($name) { * echo $name . ' said: ' . fread($stream); * }); * ``` * * See also [example #11](examples). * * You can invoke [`removeReadStream()`](#removereadstream) to remove the * read event listener for this stream. * * The execution order of listeners when multiple streams become ready at * the same time is not guaranteed. * * @param resource $stream The PHP stream resource to check. * @param callable $listener Invoked when the stream is ready. * @throws \Exception if the given resource type is not supported by this loop implementation * @see self::removeReadStream() / public function addReadStream($stream, $listener); /* * [Advanced] Register a listener to be notified when a stream is ready to write. * * Note that this low-level API is considered advanced usage. * Most use cases should probably use the higher-level * [writable Stream API](https://github.com/reactphp/stream#writablestreaminterface) * instead. * * The first parameter MUST be a valid stream resource that supports * checking whether it is ready to write by this loop implementation. * A single stream resource MUST NOT be added more than once. * Instead, either call [`removeWriteStream()`](#removewritestream) first or * react to this event with a single listener and then dispatch from this * listener. This method MAY throw an `Exception` if the given resource type * is not supported by this loop implementation. * * The listener callback function MUST be able to accept a single parameter, * the stream resource added by this method or you MAY use a function which * has no parameters at all. * * The listener callback function MUST NOT throw an `Exception`. * The return value of the listener callback function will be ignored and has * no effect, so for performance reasons you're recommended to not return * any excessive data structures. * * If you want to access any variables within your callback function, you * can bind arbitrary data to a callback closure like this: * * ```php * $loop->addWriteStream($stream, function ($stream) use ($name) { * fwrite($stream, 'Hello ' . $name); * }); * ``` * * See also [example #12](examples). * * You can invoke [`removeWriteStream()`](#removewritestream) to remove the * write event listener for this stream. * * The execution order of listeners when multiple streams become ready at * the same time is not guaranteed. * * Some event loop implementations are known to only trigger the listener if * the stream becomes readable (edge-triggered) and may not trigger if the * stream has already been readable from the beginning. * This also implies that a stream may not be recognized as readable when data * is still left in PHP's internal stream buffers. * As such, it's recommended to use `stream_set_read_buffer($stream, 0);` * to disable PHP's internal read buffer in this case. * * @param resource $stream The PHP stream resource to check. * @param callable $listener Invoked when the stream is ready. * @throws \Exception if the given resource type is not supported by this loop implementation * @see self::removeWriteStream() / public function addWriteStream($stream, $listener); /* * Remove the read event listener for the given stream. * * Removing a stream from the loop that has already been removed or trying * to remove a stream that was never added or is invalid has no effect. * * @param resource $stream The PHP stream resource. / public function removeReadStream($stream); /* * Remove the write event listener for the given stream. * * Removing a stream from the loop that has already been removed or trying * to remove a stream that was never added or is invalid has no effect. * * @param resource $stream The PHP stream resource. / public function removeWriteStream($stream); /* * Enqueue a callback to be invoked once after the given interval. * * The timer callback function MUST be able to accept a single parameter, * the timer instance as also returned by this method or you MAY use a * function which has no parameters at all. * * The timer callback function MUST NOT throw an `Exception`. * The return value of the timer callback function will be ignored and has * no effect, so for performance reasons you're recommended to not return * any excessive data structures. * * Unlike [`addPeriodicTimer()`](#addperiodictimer), this method will ensure * the callback will be invoked only once after the given interval. * You can invoke [`cancelTimer`](#canceltimer) to cancel a pending timer. * * ```php * $loop->addTimer(0.8, function () { * echo 'world!' . PHP_EOL; * }); * * $loop->addTimer(0.3, function () { * echo 'hello '; * }); * ``` * * See also [example #1](examples). * * If you want to access any variables within your callback function, you * can bind arbitrary data to a callback closure like this: * * ```php * function hello($name, LoopInterface $loop) * { * $loop->addTimer(1.0, function () use ($name) { * echo "hello $name\n"; * }); * } * * hello('Tester', $loop); * ``` * * This interface does not enforce any particular timer resolution, so * special care may have to be taken if you rely on very high precision with * millisecond accuracy or below. Event loop implementations SHOULD work on * a best effort basis and SHOULD provide at least millisecond accuracy * unless otherwise noted. Many existing event loop implementations are * known to provide microsecond accuracy, but it's generally not recommended * to rely on this high precision. * * Similarly, the execution order of timers scheduled to execute at the * same time (within its possible accuracy) is not guaranteed. * * This interface suggests that event loop implementations SHOULD use a * monotonic time source if available. Given that a monotonic time source is * only available as of PHP 7.3 by default, event loop implementations MAY * fall back to using wall-clock time. * While this does not affect many common use cases, this is an important * distinction for programs that rely on a high time precision or on systems * that are subject to discontinuous time adjustments (time jumps). * This means that if you schedule a timer to trigger in 30s and then adjust * your system time forward by 20s, the timer SHOULD still trigger in 30s. * See also [event loop implementations](#loop-implementations) for more details. * * @param int\|float $interval The number of seconds to wait before execution. * @param callable $callback The callback to invoke. * * @return TimerInterface / public function addTimer($interval, $callback); /* * Enqueue a callback to be invoked repeatedly after the given interval. * * The timer callback function MUST be able to accept a single parameter, * the timer instance as also returned by this method or you MAY use a * function which has no parameters at all. * * The timer callback function MUST NOT throw an `Exception`. * The return value of the timer callback function will be ignored and has * no effect, so for performance reasons you're recommended to not return * any excessive data structures. * * Unlike [`addTimer()`](#addtimer), this method will ensure the the * callback will be invoked infinitely after the given interval or until you * invoke [`cancelTimer`](#canceltimer). * * ```php * $timer = $loop->addPeriodicTimer(0.1, function () { * echo 'tick!' . PHP_EOL; * }); * * $loop->addTimer(1.0, function () use ($loop, $timer) { * $loop->cancelTimer($timer); * echo 'Done' . PHP_EOL; * }); * ``` * * See also [example #2](examples). * * If you want to limit the number of executions, you can bind * arbitrary data to a callback closure like this: * * ```php * function hello($name, LoopInterface $loop) * { * $n = 3; * $loop->addPeriodicTimer(1.0, function ($timer) use ($name, $loop, &$n) { * if ($n > 0) { * --$n; * echo "hello $name\n"; * } else { * $loop->cancelTimer($timer); * } * }); * } * * hello('Tester', $loop); * ``` * * This interface does not enforce any particular timer resolution, so * special care may have to be taken if you rely on very high precision with * millisecond accuracy or below. Event loop implementations SHOULD work on * a best effort basis and SHOULD provide at least millisecond accuracy * unless otherwise noted. Many existing event loop implementations are * known to provide microsecond accuracy, but it's generally not recommended * to rely on this high precision. * * Similarly, the execution order of timers scheduled to execute at the * same time (within its possible accuracy) is not guaranteed. * * This interface suggests that event loop implementations SHOULD use a * monotonic time source if available. Given that a monotonic time source is * only available as of PHP 7.3 by default, event loop implementations MAY * fall back to using wall-clock time. * While this does not affect many common use cases, this is an important * distinction for programs that rely on a high time precision or on systems * that are subject to discontinuous time adjustments (time jumps). * This means that if you schedule a timer to trigger in 30s and then adjust * your system time forward by 20s, the timer SHOULD still trigger in 30s. * See also [event loop implementations](#loop-implementations) for more details. * * Additionally, periodic timers may be subject to timer drift due to * re-scheduling after each invocation. As such, it's generally not * recommended to rely on this for high precision intervals with millisecond * accuracy or below. * * @param int\|float $interval The number of seconds to wait before execution. * @param callable $callback The callback to invoke. * * @return TimerInterface / public function addPeriodicTimer($interval, $callback); /* * Cancel a pending timer. * * See also [`addPeriodicTimer()`](#addperiodictimer) and [example #2](examples). * * Calling this method on a timer instance that has not been added to this * loop instance or on a timer that has already been cancelled has no effect. * * @param TimerInterface $timer The timer to cancel. * * @return void / public function cancelTimer(TimerInterface $timer); /* * Schedule a callback to be invoked on a future tick of the event loop. * * This works very much similar to timers with an interval of zero seconds, * but does not require the overhead of scheduling a timer queue. * * The tick callback function MUST be able to accept zero parameters. * * The tick callback function MUST NOT throw an `Exception`. * The return value of the tick callback function will be ignored and has * no effect, so for performance reasons you're recommended to not return * any excessive data structures. * * If you want to access any variables within your callback function, you * can bind arbitrary data to a callback closure like this: * * ```php * function hello($name, LoopInterface $loop) * { * $loop->futureTick(function () use ($name) { * echo "hello $name\n"; * }); * } * * hello('Tester', $loop); * ``` * * Unlike timers, tick callbacks are guaranteed to be executed in the order * they are enqueued. * Also, once a callback is enqueued, there's no way to cancel this operation. * * This is often used to break down bigger tasks into smaller steps (a form * of cooperative multitasking). * * ```php * $loop->futureTick(function () { * echo 'b'; * }); * $loop->futureTick(function () { * echo 'c'; * }); * echo 'a'; * ``` * * See also [example #3](examples). * * @param callable $listener The callback to invoke. * * @return void / public function futureTick($listener); /* * Register a listener to be notified when a signal has been caught by this process. * * This is useful to catch user interrupt signals or shutdown signals from * tools like `supervisor` or `systemd`. * * The listener callback function MUST be able to accept a single parameter, * the signal added by this method or you MAY use a function which * has no parameters at all. * * The listener callback function MUST NOT throw an `Exception`. * The return value of the listener callback function will be ignored and has * no effect, so for performance reasons you're recommended to not return * any excessive data structures. * * ```php * $loop->addSignal(SIGINT, function (int $signal) { * echo 'Caught user interrupt signal' . PHP_EOL; * }); * ``` * * See also [example #4](examples). * * Signaling is only available on Unix-like platform, Windows isn't * supported due to operating system limitations. * This method may throw a `BadMethodCallException` if signals aren't * supported on this platform, for example when required extensions are * missing. * * *Note: A listener can only be added once to the same signal, any attempts to add it more then once will be ignored.** * * @param int $signal * @param callable $listener * * @throws \BadMethodCallException when signals aren't supported on this * platform, for example when required extensions are missing. * * @return void / public function addSignal($signal, $listener); /* * Removes a previously added signal listener. * * ```php * $loop->removeSignal(SIGINT, $listener); * ``` * * Any attempts to remove listeners that aren't registered will be ignored. * * @param int $signal * @param callable $listener * * @return void / public function removeSignal($signal, $listener); /* * Run the event loop until there are no more tasks to perform. * * For many applications, this method is the only directly visible * invocation on the event loop. * As a rule of thumb, it is usally recommended to attach everything to the * same loop instance and then run the loop once at the bottom end of the * application. * * ```php * $loop->run(); * ``` * * This method will keep the loop running until there are no more tasks * to perform. In other words: This method will block until the last * timer, stream and/or signal has been removed. * * Likewise, it is imperative to ensure the application actually invokes * this method once. Adding listeners to the loop and missing to actually * run it will result in the application exiting without actually waiting * for any of the attached listeners. * * This method MUST NOT be called while the loop is already running. * This method MAY be called more than once after it has explicity been * [`stop()`ped](#stop) or after it automatically stopped because it * previously did no longer have anything to do. * * @return void / public function run(); /* * Instruct a running event loop to stop. * * This method is considered advanced usage and should be used with care. * As a rule of thumb, it is usually recommended to let the loop stop * only automatically when it no longer has anything to do. * * This method can be used to explicitly instruct the event loop to stop: * * ```php * $loop->addTimer(3.0, function () use ($loop) { * $loop->stop(); * }); * ``` * * Calling this method on a loop instance that is not currently running or * on a loop instance that has already been stopped has no effect. * * @return void / public function stop(); } PK��t�Zn%��src/TimerInterface.phpnu��[��<?php namespace React\EventLoop; interface TimerInterface { /* * Get the interval after which this timer will execute, in seconds * * @return float / public function getInterval(); /* * Get the callback that will be executed when this timer elapses * * @return callable / public function getCallback(); /* * Determine whether the time is periodic * * @return bool / public function isPeriodic(); } PK��t�Z�LI$o��o��src/ExtLibevLoop.phpnu��[��<?php namespace React\EventLoop; use BadMethodCallException; use libev\EventLoop; use libev\IOEvent; use libev\SignalEvent; use libev\TimerEvent; use React\EventLoop\Tick\FutureTickQueue; use React\EventLoop\Timer\Timer; use SplObjectStorage; /* * [Deprecated] An `ext-libev` based event loop. * * This uses an [unofficial `libev` extension](https://github.com/m4rw3r/php-libev), * that provides an interface to `libev` library. * `libev` itself supports a number of system-specific backends (epoll, kqueue). * * This loop does only work with PHP 5. * An update for PHP 7 is [unlikely](https://github.com/m4rw3r/php-libev/issues/8) * to happen any time soon. * * @see https://github.com/m4rw3r/php-libev * @see https://gist.github.com/1688204 * @deprecated 1.2.0, use [`ExtEvLoop`](#extevloop) instead. / final class ExtLibevLoop implements LoopInterface { private $loop; private $futureTickQueue; private $timerEvents; private $readEvents = array(); private $writeEvents = array(); private $running; private $signals; private $signalEvents = array(); public function __construct() { if (!\class_exists('libev\EventLoop', false)) { throw new BadMethodCallException('Cannot create ExtLibevLoop, ext-libev extension missing'); } $this->loop = new EventLoop(); $this->futureTickQueue = new FutureTickQueue(); $this->timerEvents = new SplObjectStorage(); $this->signals = new SignalsHandler(); } public function addReadStream($stream, $listener) { if (isset($this->readEvents[(int) $stream])) { return; } $callback = function () use ($stream, $listener) { \call_user_func($listener, $stream); }; $event = new IOEvent($callback, $stream, IOEvent::READ); $this->loop->add($event); $this->readEvents[(int) $stream] = $event; } public function addWriteStream($stream, $listener) { if (isset($this->writeEvents[(int) $stream])) { return; } $callback = function () use ($stream, $listener) { \call_user_func($listener, $stream); }; $event = new IOEvent($callback, $stream, IOEvent::WRITE); $this->loop->add($event); $this->writeEvents[(int) $stream] = $event; } public function removeReadStream($stream) { $key = (int) $stream; if (isset($this->readEvents[$key])) { $this->readEvents[$key]->stop(); $this->loop->remove($this->readEvents[$key]); unset($this->readEvents[$key]); } } public function removeWriteStream($stream) { $key = (int) $stream; if (isset($this->writeEvents[$key])) { $this->writeEvents[$key]->stop(); $this->loop->remove($this->writeEvents[$key]); unset($this->writeEvents[$key]); } } public function addTimer($interval, $callback) { $timer = new Timer( $interval, $callback, false); $that = $this; $timers = $this->timerEvents; $callback = function () use ($timer, $timers, $that) { \call_user_func($timer->getCallback(), $timer); if ($timers->contains($timer)) { $that->cancelTimer($timer); } }; $event = new TimerEvent($callback, $timer->getInterval()); $this->timerEvents->attach($timer, $event); $this->loop->add($event); return $timer; } public function addPeriodicTimer($interval, $callback) { $timer = new Timer($interval, $callback, true); $callback = function () use ($timer) { \call_user_func($timer->getCallback(), $timer); }; $event = new TimerEvent($callback, $interval, $interval); $this->timerEvents->attach($timer, $event); $this->loop->add($event); return $timer; } public function cancelTimer(TimerInterface $timer) { if (isset($this->timerEvents[$timer])) { $this->loop->remove($this->timerEvents[$timer]); $this->timerEvents->detach($timer); } } public function futureTick($listener) { $this->futureTickQueue->add($listener); } public function addSignal($signal, $listener) { $this->signals->add($signal, $listener); if (!isset($this->signalEvents[$signal])) { $signals = $this->signals; $this->signalEvents[$signal] = new SignalEvent(function () use ($signals, $signal) { $signals->call($signal); }, $signal); $this->loop->add($this->signalEvents[$signal]); } } public function removeSignal($signal, $listener) { $this->signals->remove($signal, $listener); if (isset($this->signalEvents[$signal]) && $this->signals->count($signal) === 0) { $this->signalEvents[$signal]->stop(); $this->loop->remove($this->signalEvents[$signal]); unset($this->signalEvents[$signal]); } } public function run() { $this->running = true; while ($this->running) { $this->futureTickQueue->tick(); $flags = EventLoop::RUN_ONCE; if (!$this->running \|\| !$this->futureTickQueue->isEmpty()) { $flags \|= EventLoop::RUN_NOWAIT; } elseif (!$this->readEvents && !$this->writeEvents && !$this->timerEvents->count() && $this->signals->isEmpty()) { break; } $this->loop->run($flags); } } public function stop() { $this->running = false; } } PK��t�Z:�3h>��>��src/Loop.phpnu��[��<?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, $listener) { self::get()->addReadStream($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, $listener) { self::get()->addWriteStream($stream, $listener); } /* * Remove the read event listener for the given stream. * * @param resource $stream * @return void * @see LoopInterface::removeReadStream() / public static function removeReadStream($stream) { self::get()->removeReadStream($stream); } /* * Remove the write event listener for the given stream. * * @param resource $stream * @return void * @see LoopInterface::removeWriteStream() / public static function removeWriteStream($stream) { self::get()->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, $callback) { return self::get()->addTimer($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, $callback) { return self::get()->addPeriodicTimer($interval, $callback); } /* * Cancel a pending timer. * * @param TimerInterface $timer * @return void * @see LoopInterface::cancelTimer() / public static function cancelTimer(TimerInterface $timer) { return self::get()->cancelTimer($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) { self::get()->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, $listener) { self::get()->addSignal($signal, $listener); } /* * Removes a previously added signal listener. * * @param int $signal * @param callable $listener * @return void * @see LoopInterface::removeSignal() / public static function removeSignal($signal, $listener) { self::get()->removeSignal($signal, $listener); } /* * Run the event loop until there are no more tasks to perform. * * @return void * @see LoopInterface::run() / public static function run() { self::get()->run(); } /* * Instruct a running event loop to stop. * * @return void * @see LoopInterface::stop() / public static function stop() { self::$stopped = true; self::get()->stop(); } } PK��t�Z�t��src/Tick/FutureTickQueue.phpnu��[��<?php namespace React\EventLoop\Tick; use SplQueue; /* * A tick queue implementation that can hold multiple callback functions * * This class should only be used internally, see LoopInterface instead. * * @see LoopInterface * @internal / final class FutureTickQueue { private $queue; public function __construct() { $this->queue = new SplQueue(); } /* * Add a callback to be invoked on a future tick of the event loop. * * Callbacks are guaranteed to be executed in the order they are enqueued. * * @param callable $listener The callback to invoke. / public function add($listener) { $this->queue->enqueue($listener); } /* * Flush the callback queue. / public function tick() { // Only invoke as many callbacks as were on the queue when tick() was called. $count = $this->queue->count(); while ($count--) { \call_user_func( $this->queue->dequeue() ); } } /* * Check if the next tick queue is empty. * * @return boolean / public function isEmpty() { return $this->queue->isEmpty(); } } PK��t�Z��src/Factory.phpnu��[��<?php namespace React\EventLoop; /* * [Deprecated] The `Factory` class exists as a convenient way to pick the best available event loop implementation. * * @deprecated 1.2.0 See Loop instead. * @see Loop / final class Factory { /* * [Deprecated] Creates a new event loop instance * * ```php * // deprecated * $loop = React\EventLoop\Factory::create(); * * // new * $loop = React\EventLoop\Loop::get(); * ``` * * This method always returns an instance implementing `LoopInterface`, * the actual event loop implementation is an implementation detail. * * This method should usually only be called once at the beginning of the program. * * @deprecated 1.2.0 See Loop::get() instead. * @see Loop::get() * * @return LoopInterface / public static function create() { $loop = self::construct(); Loop::set($loop); return $loop; } /* * @internal * @return LoopInterface / private static function construct() { // @codeCoverageIgnoreStart if (\function_exists('uv_loop_new')) { // only use ext-uv on PHP 7 return new ExtUvLoop(); } if (\class_exists('libev\EventLoop', false)) { return new ExtLibevLoop(); } if (\class_exists('EvLoop', false)) { return new ExtEvLoop(); } if (\class_exists('EventBase', false)) { return new ExtEventLoop(); } if (\function_exists('event_base_new') && \PHP_MAJOR_VERSION === 5) { // only use ext-libevent on PHP 5 for now return new ExtLibeventLoop(); } return new StreamSelectLoop(); // @codeCoverageIgnoreEnd } } PK��t�Z�{�u��u��LICENSEnu��[��The MIT License (MIT) Copyright (c) 2012 Christian Lück, Cees-Jan Kiewiet, Jan Sorgalla, Chris Boden, Igor Wiedler Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. PK��t�Z��R�T��T�� composer.jsonnu��[��PK��t�Z�P�n9��n9��CHANGELOG.mdnu��[��PK��t�Z��;?��src/ExtEvLoop.phpnu��[��PK��t�Z� "��"��W��src/SignalsHandler.phpnu��[��PK��t�Z�O�3 ��3 ��x\��src/ExtEventLoop.phpnu��[��PK��t�Zה����*��\|��src/StreamSelectLoop.phpnu��[��PK��t�Zy[�$�!��!��src/ExtLibeventLoop.phpnu��[��PK��t�Z�٥:O$��O$��(��src/ExtUvLoop.phpnu��[��PK��t�Z-@�w��w��src/Timer/Timers.phpnu��[��PK��t�Z�w��s��src/Timer/Timer.phpnu��[��PK��t�Z�L��H��H��src/LoopInterface.phpnu��[��PK��t�Zn%��I�src/TimerInterface.phpnu��[��PK��t�Z�LI$o��o��7K�src/ExtLibevLoop.phpnu��[��PK��t�Z:�3h>��>��a�src/Loop.phpnu��[��PK��t�Z�t��dy�src/Tick/FutureTickQueue.phpnu��[��PK��t�Z��\|~�src/Factory.phpnu��[��PK��t�Z�{�u��u��ԅ�LICENSEnu��[��PK��x��

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