php实现 master-worker 守护多进程模式的实例代码
具体代码如下所示:<?php
class Worker{
public static $count = 2;
public static function runAll(){
static::runMaster();
static::moniProcess();
}
//开启主进程
public static function runMaster(){
//确保进程有最大操作权限
unmask(0);
$pid = pcntl_fork();
if($pid > 0){
echo "主进程进程 $pid \n";
exit;
}else if($pid == 0){
if(-1 === posix_setsid()){
throw new Exception("setsid fail");
}
for ($i=0; $i < self::$count; $i++) {
static::runWorker();
}
@cli_set_process_title("master_process");
}else{
throw new Exception("创建主进程失败");
}
}
//开启子进程
public static function runWorker(){
unmask(0);
$pid = pcntl_fork();
if($pid > 0){
// echo "创建子进程 $pid \n";
}else if($pid == 0){
if(-1 === posix_setsid()){
throw new Exception("setsid fail");
}
@cli_set_process_title("worker_process");
while(1){
sleep(1);
}
}else{
throw new Exception("创建子进程失败");
}
}
//监控worker进程
public function moniProcess(){
while( $pid = pcntl_wait($status)){
if($pid == -1){
break;
}else{
static::runWorker();
}
}
}
}
Worker::runAll();
ps -aux
USER PID %CPU %MEMVSZRSS TTY STAT STARTTIME COMMAND
root 1 0.0 0.0 18200 3076 pts/0Ss+ 14:050:00 bash
root 6 0.0 0.0 18208 3252 pts/1Ss14:060:00 bash
root 19 0.0 0.0 18204 3248 pts/2Ss+ 14:110:00 bash
root 64 0.0 0.2 348488 8320 ? Ss15:320:00 master_process
root 65 0.0 0.2 348488 8400 ? Ss15:320:00 worker_process
root 66 0.0 0.2 348488 8400 ? Ss15:320:00 worker_process
root 67 0.0 0.0 36640 2804 pts/1R+15:320:00 ps -aux
执行命令 kill 65,杀死进程 65 则master_process 进程会再自动开启一个子进程
USER PID %CPU %MEMVSZRSS TTY STAT STARTTIME COMMAND
root 1 0.0 0.0 18200 3076 pts/0Ss+ 14:050:00 bash
root 6 0.0 0.0 18208 3252 pts/1Ss14:060:00 bash
root 19 0.0 0.0 18204 3248 pts/2Ss+ 14:110:00 bash
root 64 0.0 0.2 348488 8320 ? Ss15:320:00 master_process
root 66 0.0 0.2 348488 8400 ? Ss15:320:00 worker_process
root 68 0.0 0.1 348488 5796 ? Ss15:340:00 worker_process
root 69 0.0 0.0 36640 2728 pts/1R+15:340:00 ps -aux
总结
以上所述是小编给大家介绍的php实现 master-worker 守护多进程模式的实例代码,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对CodeAE代码之家网站的支持!
如果你觉得本文对你有帮助,欢迎转载,烦请注明出处,谢谢!
原文链接:https://www.cnblogs.com/itsuibi/archive/2019/07/20/11189234.html
文档来源:http://www.zzvips.com/article/182742.html
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