具体代码如下所示:
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<?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(); |
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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
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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服务器之家网站的支持!
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