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：<?phpclassWorker{publicstatic$count=2;publicstaticfunctionrunAll(){static::runMaster()

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，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脚本之家网站的支持！ 如果你觉得本文对你有帮助，欢迎转载，烦请注明出处，谢谢！