swoole查看子进程与主进程关系「建议收藏」

大家好，又见面了，我是全栈君。

ps aft|grep tcp.php

20688 pts/7    S+     0:00  \_ grep --color=auto tcp.php
20450 pts/4    Sl+    0:00  \_ php tcp.php
20451 pts/4    S+     0:00      \_ php tcp.php
20453 pts/4    S+     0:00          \_ php tcp.php
20454 pts/4    S+     0:00          \_ php tcp.php
20455 pts/4    S+     0:00          \_ php tcp.php
20456 pts/4    S+     0:00          \_ php tcp.php
20457 pts/4    S+     0:00          \_ php tcp.php
20458 pts/4    S+     0:00          \_ php tcp.php
20459 pts/4    S+     0:00          \_ php tcp.php
20460 pts/4    S+     0:00          \_ php tcp.php

tcp.php

<?php
/**
 *User: lxw
 *Date: 2020-01-16
 */
//创建Server对象，监听 127.0.0.1:9501端口
$serv = new swoole_server("127.0.0.1", 9501);

$serv->set(array(
    'worker_num'=>8, // worker 进程数 CPU 1~4 倍
    'max_request'=>1000
));

/**
 * $fd:客户端连接的唯一标识
 * $reactor_id: 线程id
 */
//监听连接进入事件

//事件回调函数四种方法
//1.匿名函数
$a='hello';
$b='world';
$serv->on('Connect', function ($serv, $fd,$reactor_id) use($a,$b) {
    echo "Client: {$reactor_id} - {$fd} Connect -{$a}-{$b}.\n";
});

//2.类静态方法
/*class A{
    static function client ($serv, $fd,$reactor_id) {
        echo "Client: {$reactor_id} - {$fd} Connect.\n";
    }
}
$serv->on('Connect', 'A::Client');*/
//$serv->on('Connect', array('A','client'));


//3.函数
//function my_func($serv, $fd,$reactor_id){
//    echo "Client: {$reactor_id} - {$fd} Connect 22.\n";
//}
//$serv->on('Connect', 'my_func');

//4.对象方法
/*class B{
    function client($serv, $fd,$reactor_id){
        echo "Client: {$reactor_id} - {$fd} Connect 22.\n";
    }
}
$obj=new B();
$serv->on('Connect', array($obj,'client'));*/


//监听数据接收事件
$serv->on('Receive', function ($serv, $fd, $reactor_id, $data) {
    $serv->send($fd, "Server: {$reactor_id} - {$fd} ".$data);
});

//监听连接关闭事件
$serv->on('Close', function ($serv, $fd) {
    echo "Client: Close.\n";
});

//启动服务器
$serv->start();


//使用 telnet 127.0.0.1 9501
// netstat -anp|grep 9501

tcp_client.php

<?php
/**
 *User: lxw
 *Date: 2020-01-17
 */

//连接 TCP 服务
$client=new swoole_client(SWOOLE_SOCK_TCP);

if (!$client->connect('0.0.0.0',9501)){
    echo '连接失败';
    exit();
}

//php cli 常量
fwrite(STDOUT,'请输入消息:');
$msg=trim(fgets(STDIN));

//发送消息给tcp server 服务器
$client->send($msg);

//接受来自server 的数据
$result=$client->recv();
echo $result;