具體代碼如下所示:
?php class Worker{ public static $count = 2; public static function runAll(){ static::runMaster(); static::moniProcess(); } //開啟主進程 public static function runMaster(){ //確保進程有最大操作權限 unmask(0); $pid = pcntl_fork(); if($pid > 0){ echo "主進程進程 $pid \n"; exit; }else if($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("創(chuàng)建主進程失敗"); } } //開啟子進程 public static function runWorker(){ unmask(0); $pid = pcntl_fork(); if($pid > 0){ // echo "創(chuàng)建子進程 $pid \n"; }else if($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("創(chuàng)建子進程失敗"); } } //監(jiān)控worker進程 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
執(zhí)行命令 kill 65,殺死進程 65 則master_process 進程會再自動開啟一個子進程
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
總結
以上所述是小編給大家介紹的php實現 master-worker 守護多進程模式的實例代碼,希望對大家有所幫助,如果大家有任何疑問請給我留言,小編會及時回復大家的。在此也非常感謝大家對腳本之家網站的支持!
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