php实现 master-worker 守护多进程模式的实例代码
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2022-06-14 14:28:15
具体代码如下所示：
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 %mem vsz rss tty stat start time command root 1 0.0 0.0 18200 3076 pts/0 ss+ 14:05 0:00 bash root 6 0.0 0.0 18208 3252 pts/1 ss 14:06 0:00 bash root 19 0.0 0.0 18204 3248 pts/2 ss+ 14:11 0:00 bash root 64 0.0 0.2 348488 8320 ? ss 15:32 0:00 master_process root 65 0.0 0.2 348488 8400 ? ss 15:32 0:00 worker_process root 66 0.0 0.2 348488 8400 ? ss 15:32 0:00 worker_process root 67 0.0 0.0 36640 2804 pts/1 r+ 15:32 0:00 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 %mem vsz rss tty stat start time command root 1 0.0 0.0 18200 3076 pts/0 ss+ 14:05 0:00 bash root 6 0.0 0.0 18208 3252 pts/1 ss 14:06 0:00 bash root 19 0.0 0.0 18204 3248 pts/2 ss+ 14:11 0:00 bash root 64 0.0 0.2 348488 8320 ? ss 15:32 0:00 master_process root 66 0.0 0.2 348488 8400 ? ss 15:32 0:00 worker_process root 68 0.0 0.1 348488 5796 ? ss 15:34 0:00 worker_process root 69 0.0 0.0 36640 2728 pts/1 r+ 15:34 0:00 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