SvnAdminV2.0/02.后端开发/server/svnadmind.php

<?php
/*
 * @Author: witersen
 * @Date: 2021-02-25 14:18:17
 * @LastEditors: witersen
 * @LastEditTime: 2021-09-16 16:51:20
 * @Description: QQ:1801168257
 */

ini_set('display_errors', 1);
error_reporting(E_ALL);

class Daemon
{

    private $pidfile;

    function __construct()
    {
        $this->pidfile = dirname(__FILE__) . '/svnadmind.pid';
    }

    private function init_daemon()
    {
        $pid = pcntl_fork();
        if ($pid < 0) {
            exit("pcntl_fork error");
        } elseif ($pid > 0) {
            exit(0);
        }
        $sid = posix_setsid();
        if (!$sid) {
            exit("错误");
        }
        $pid = pcntl_fork();
        if ($pid < 0) {
            exit("pcntl_fork error");
        } elseif ($pid > 0) {
            exit(0);
        }
        chdir("/");
        umask(0);
        if (defined('STDIN')) {
            fclose(STDIN);
        }
        if (defined('STDOUT')) {
            fclose(STDOUT);
        }
        if (defined('STDERR')) {
            fclose(STDERR);
        }
        file_put_contents($this->pidfile, getmypid());
        return getmypid();
    }

    private function init_socket()
    {
        //创建一个新的套接字上下文
        $context = new ZMQContext();
        //创建一个ZMQ响应套接字
        $reply = new ZMQSocket($context, ZMQ::SOCKET_REP);
        //绑定端口
        $reply->bind("tcp://127.0.0.1:6666");
        return $reply;
    }

    private function start_daemon()
    {
        if (file_exists($this->pidfile)) {
            echo "进程正在运行中 无需启动\n";
            exit(0);
        }
        return $this->init_daemon();
    }

    private function start()
    {
        $pid = $this->start_daemon();
        $reply = $this->init_socket();
        while (true) {
            $a = $reply->recv();
            $b = urldecode($a);
            $result = shell_exec($b);
            $reply->send($result);
        }
    }

    private function stop()
    {
        if (file_exists($this->pidfile)) {
            $pid = file_get_contents($this->pidfile);
            posix_kill($pid, 9);
            unlink($this->pidfile);
        }
    }

    public function run($argv)
    {
        if (isset($argv[1])) {
            if ($argv[1] == 'start') {
                $this->start();
            } else if ($argv[1] == 'stop') {
                $this->stop();
            }
        } else {
            echo "Usage: php svnadmind.php start|stop\n";
        }
    }
}

$deamon = new Daemon();
$deamon->run($argv);