使用swoole实现异步任务处理

php#!/bin/env php
<?php
$http = new swoole_http_server("0.0.0.0", 9501);
//redis 存储任务处理结果和进度
$redis = new \Redis();
$redis->connect("127.0.0.1", 6379);

$http->set([
    'worker_num' => 2,
    'open_tcp_nodelay' => true,
    'task_worker_num' => 2,
    'daemonize' => true,
    'log_file' => '/tmp/swoole_http_server.log',
]);

$http->on('request', function(swoole_http_request $request, swoole_http_response $response) use ($http, $redis) {
    //请求过滤
    if($request->server['path_info'] == '/favicon.ico' || $request->server['request_uri'] == '/favicon.ico'){
        return $response->end();
    }   
    $taskId = isset($request->get['taskId']) ? $request->get['taskId']: ''; 
    if($taskId !== ''){
        //返回任务状态
        $status = $redis->get($taskId);
        return $response->end("task: $taskId;status: $status");
    }   
    $params = json_encode(array(111,222));//此处处理requst请求数据作为任务执行的数据，根据需要修改
    $taskId = $http->task($params);
    $response->end("

<h1>Do task:$taskId.</h1>

");
});
$http->on('Finish', function($serv, $taskId, $data){
   //TDDO 任务结束之后处理任务或者回调
    echo "$taskId task finish";
});
$http->on('task', function($serv, $taskId, $fromId, $data) use($redis){
    //任务处理，可以把处理结果和状态在redis里面实时更新，便于获取任务状态
    for($i = 0; $i < 100;$i++){
         $redis->set($taskId, $i);
         sleep(1);
    }
    return $i;//必须有return 否则不会调用onFinish
});

$http->start();