archive
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3094873E29A482FB
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vendor/
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composer.lock
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.idea/
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MIT License
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Copyright (c) 2017 CismonX
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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## Workerman-Uv
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### 简介
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[libuv](http://libuv.org/) 是一个事件驱动的异步 I/O 库，最初是为 Node.js 开发的。随后也在 Python、Julia 等语言中被应用。
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[php-uv](https://pecl.php.net/package/uv) 是对 libuv 的封装，使其可以在 PHP 中被应用。
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本项目将 php-uv 的 event-loop 应用于 Workerman，从而可以在基于 Workerman 的项目中利用 php-uv 提供的特性。
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### 使用说明
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1. 使用包管理器安装 libuv 和 libuv-devel（可能需要手动添加源）。
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2. 使用 pecl 安装 php-uv（也可以从 pecl 官网或 GitHub 仓库下载源码后手动编译）。
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3. 使用 composer 加载`Workerman\\Events\\Uv`。
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```bash
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composer require cismonx/workerman-uv
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```
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4. 在项目中使用 `Workerman\Events\Uv` 提供的 event-loop。如下：
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```php
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Worker::$eventLoopClass = '\\Workerman\\Events\\Uv';
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```
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### 注意
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1. 使用 libuv 的 event-loop 后，Workerman 的子进程处理 SIGINT 事件时会 exit 2 (no such file or directory)，这个问题待解决。
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2. 如果需要使用 libuv 的多线程特性，需要线程安全（ZTS）的 PHP。
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3. php-uv 目前处于 Beta 阶段，其稳定性不能保证。请避免将其应用于生产环境。
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{
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"name" : "cismonx/workerman-uv",
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"description" : "Libuv event loop for Workerman.",
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"license" : "MIT",
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"type" : "library",
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"require" : {
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"workerman/workerman": "^3.4",
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"ext-uv": "*"
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},
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"autoload" : {
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"psr-4" : {
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"Workerman\\Events\\" : "src/"
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}
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}
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}
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<?php
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/**
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* Workerman-Uv
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* 2017 CismonX <admin@cismon.net>
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*/
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namespace Workerman\Events;
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use Workerman\Worker;
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class Uv implements EventInterface {
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/**
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* Libuv event loop.
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* @var resource
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*/
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protected $_loop;
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/**
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* Read & write events.
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* @var array
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*/
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protected $_allEvents = [];
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/**
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* Signals.
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* @var array
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*/
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protected $_eventSignal = [];
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/**
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* Timers.
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* @var array
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*/
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protected $_eventTimer = [];
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/**
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* Timer id counter.
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* @var int
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*/
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protected static $_timerId = 1;
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/**
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* Identifies a socket with both read and write events registered.
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*/
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const EV_RW = 3;
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/**
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* Constructor.
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*/
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public function __construct() {
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$this->_loop = uv_default_loop();
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}
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/**
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* {@inheritdoc}
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*/
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public function add($fd, $flag, $func, $args = null) {
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switch ($flag) {
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case self::EV_READ:
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case self::EV_WRITE:
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$fd_key = intval($fd);
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//uv_poll_init() can only be called once for a same file descriptor.
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if (!isset($this->_allEvents[$fd_key]))
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$this->_allEvents[$fd_key][0] = uv_poll_init($this->_loop, $fd);
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$event = $this->_allEvents[$fd_key][0];
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$this->_allEvents[$fd_key][$flag] = $func;
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if (isset($this->_allEvents[$fd_key][self::EV_RW - $flag]))
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$flag = self::EV_RW;
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//Call uv_poll_start() with both existing flags.
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uv_poll_start($event, $flag, function ($poll, $stat, $ev, $conn) use ($func) {
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$func($conn);
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});
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break;
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case self::EV_SIGNAL:
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$fd_key = intval($fd);
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$event = uv_signal_init();
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uv_signal_start($event, function ($ev, $signal) use ($func) {
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$func($signal);
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}, $fd_key);
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$this->_eventSignal[$fd_key] = $event;
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break;
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case self::EV_TIMER:
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case self::EV_TIMER_ONCE:
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$event = uv_timer_init();
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$param = [$func, (array)$args, $flag, self::$_timerId];
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$interval = $fd * 1000;
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uv_timer_start($event, $interval, $interval, \Closure::bind(function () use ($param) {
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$timer_id = $param[3];
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if ($param[2] === self::EV_TIMER_ONCE) {
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uv_timer_stop($this->_eventTimer[$timer_id]);
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unset($this->_eventTimer[$timer_id]);
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}
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try {
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call_user_func_array($param[0], $param[1]);
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} catch (\Exception $e) {
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Worker::log($e);
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exit(250);
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} catch (\Error $e) {
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Worker::log($e);
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exit(250);
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}
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}, $this, __CLASS__));
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$this->_eventTimer[self::$_timerId] = $event;
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return self::$_timerId++;
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default:
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break;
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}
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return false;
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}
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/**
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* {@inheritdoc}
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*/
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public function del($fd, $flag) {
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switch ($flag) {
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case self::EV_READ:
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case self::EV_WRITE:
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$fd_key = intval($fd);
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if (isset($this->_allEvents[$fd_key][$flag])) {
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unset($this->_allEvents[$fd_key][$flag]);
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if (isset($this->_allEvents[$fd_key][self::EV_RW - $flag])) {
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$func = $this->_allEvents[$fd_key][self::EV_RW - $flag];
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//Call uv_poll_start() with the remaining flag instead of call uv_poll_stop().
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uv_poll_start($this->_allEvents[$fd_key][0], self::EV_RW - $flag,
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function ($poll, $stat, $ev, $conn) use ($func) {
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$func($conn);
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}
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);
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} else
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uv_poll_stop($this->_allEvents[$fd_key][0]);
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}
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break;
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case self::EV_SIGNAL:
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$fd_key = intval($fd);
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if (isset($this->_eventSignal[$fd_key])) {
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uv_signal_stop($this->_eventSignal[$fd_key]);
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unset($this->_eventSignal[$fd_key]);
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}
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break;
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case self::EV_TIMER:
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case self::EV_TIMER_ONCE:
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if (isset($this->_eventTimer[$fd])) {
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uv_timer_stop($this->_eventTimer[$fd]);
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unset($this->_eventTimer[$fd]);
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}
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break;
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function loop() {
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uv_run();
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}
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/**
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* {@inheritdoc}
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*/
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public function clearAllTimer() {
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foreach ($this->_eventTimer as $event)
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uv_timer_stop($event);
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$this->_eventTimer = [];
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}
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/**
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* {@inheritdoc}
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*/
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public function destroy() {
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foreach ($this->_eventSignal as $event)
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uv_signal_stop($event);
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}
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public function getTimerCount() {
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return count($this->_eventTimer);
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}
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}
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