<?php
/**
* 场景:
* 监控订单表状态 父子进程通信
* 一个主进程 两个子进程实现
*/ //设置主进程名
echo '主进程id:' . posix_getpid() . PHP_EOL;
cli_set_process_title('php_main'); //1、此子进程用于监听数据的改变
$process1 = new Swoole\Process(function (\Swoole\Process $process) {
// cli_set_process_title('php_child');
$process->name('php_child1');
$pdo = new PDO('mysql:host=mysql;dbname=test', 'root', 'root'); while (true) {
$statement = $pdo->query('select * from `order` where is_pay=1 and is_notice=0 order by id desc');
$data = $statement->fetch(PDO::FETCH_ASSOC);
if ($data) {
//向主进程发送消息
$process->write('php_child1发送' . $data['client_name'] . '已支付 ');
$pdo->exec('update `order` set is_notice=1 where id=' . $data['id']);
}
sleep(3);
}
}, false, SOCK_STREAM, true);
echo '子进程1 id:' . $process1->start() . PHP_EOL; //2、此子进程用于发送邮件
$process2 = new Swoole\Process(function (\Swoole\Process $process) {
$process->name('php_child2');
while (true) {
$orderInfo = $process->read();
if ($orderInfo) {
echo $orderInfo;
echo 'php_child2发送邮件' . PHP_EOL;
}
sleep(3);
}
}, false, SOCK_STREAM, true);
echo '子进程2 id:' . $process2->start() . PHP_EOL; while (true) {
//主进程读取子进程1中的消息
$orderInfo = $process1->read();
if ($orderInfo) {
//主进程发送数据给子进程2
$process2->write($orderInfo);
}
sleep(3);
} //\Swoole\Process::wait();
//使用Process作为监控父进程,创建管理子进程时,父类必须注册信号SIGCHLD对退出的进程执行wait,否则子进程退出时会变成僵尸进程
Swoole\Process::signal(SIGTERM, function ($signo) {
echo "shutdown.";
});
 
05-11 15:20