swoole进程初识

2021-07-20 17:06:16 浏览数 (1)

swoole是事件驱动的,server.php一直监听端口,当客户端有数据流过去,则进行监听读取,并进处理。

安装环境

应该保证系统中安装了如下软件

代码语言:javascript复制
gcc-4.4 
make
autoconf

PECL安装

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pecl install swoole

php.ini 配置

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extension=swoole.so

查看是否安装成功

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php -m | grep swoole
> swoole

swoole升级

查看当前版本

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php --ri swoole | grep Version
#结果
> Version => 1.9.6

pecl升级

pecl upgrade swoole

swoole进程初识

swoole 默认是多进程模式 Master进程 / Manager进程 / Worker进程 / Task进程

server实例代码

server-process.php

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$serv = new swoole_server('127.0.0.1', 9501);
$serv->set([
    'worker_num' => 2,
    'task_worker_num' => 1,
]);
$serv->on('Connect', function ($serv, $fd) {
});
$serv->on('Receive', function ($serv, $fd, $fromId, $data) {
});
$serv->on('Close', function ($serv, $fd) {
});
$serv->on('Task', function ($serv, $taskId, $fromId, $data) {
});
$serv->on('Finish', function ($serv, $taskId, $data) {
});

$serv->start();

对实例代码 进行pstree进程关系

pstree的结果有5个进程,因为swoole的进程模型是(Master-Manager-Worker),5个进程 = master进程(1个) manager进程(1个) worker_num(2个) task_worker_num(1个)

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$ pstree | grep server-process

 | |   - = 02548 php server-process.php
 | |     - - 02549 php server-process.php
 | |       |--- 02550 php server-process.php
 | |       |--- 02551 php server-process.php
 | |       --- 02552 php server-process.php
 |     --- 02572 grep server-process

从结果可以看出: 02548 是Master进程,它处于“root”层级 02549 是Manager进程 Worker进程和Task进程就是 02550、02551和02552

设置进程名称备注,再进行pstree进程关系

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Master进程:
    启动:onStart
    关闭:onShutdown
Manager进程:
    启动:onManagerStart
    关闭:onManagerStop
Worker进程:
    启动:onWorkerStart
    关闭:onWorkerStop

mac下不支持swoole_set_process_name函数,可以用centos进行测试

代码语言:javascript复制
$serv->on("start", function ($serv){
    swoole_set_process_name('server-process: master');
});
// 以下回调发生在Manager进程
$serv->on('ManagerStart', function ($serv){
    swoole_set_process_name('server-process: manager');
});
$serv->on('WorkerStart', function ($serv, $workerId){
    if($workerId < $serv->setting['worker_num']) {
        // $workerId = 0~worker_num之间,则为worker进程
        swoole_set_process_name("server-process: worker");
    } else {
        // $workerId >= worker_num之间,则为task进程
        swoole_set_process_name("server-process: task");
    }
});

ps出来的结果

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# ps aux | grep server-process
root     27546  xxx... server-process: master
root     27547  xxx... server-process: manager
root     27549  xxx... server-process: task worker
root     27550  xxx... server-process: worker
root     27551  xxx... server-process: worker
root     27570  xxx... grep --color=auto simple

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