crutch / daemon
daemon helper
v1.1.0
2023-07-04 23:17 UTC
Requires
- php: ^7.4 || ^8.0
- ext-pcntl: *
- ext-posix: *
This package is not auto-updated.
Last update: 2024-11-07 01:08:35 UTC
README
Daemon helper
Install
composer require crutch/daemon:^1.0
Usage
Create worker runner
#!/usr/bin/env php <?php // crutch_worker_demo.php declare(strict_types=1); require_once __DIR__ . '/vendor/autoload.php'; $worker = function () { while (true) { sleep(1); } }; $pidFile = '/tmp/crutch-daemon.pid'; $daemon = new \Crutch\Daemon\Daemon($pidFile); $action = $argv[1] ?? ''; $num = max(1, intval($argv[2] ?? '1')); switch ($action) { case 'start': try { $daemon->start($worker, $num); } catch (\Crutch\Daemon\Exception\DaemonException $exception) { printf("Could not start daemon: %s\n", $exception->getMessage()); exit($exception->getCode()); } break; case 'listen': $daemon->listen($worker); break; case 'stop': try { $daemon->stop(); } catch (\Crutch\Daemon\Exception\DaemonException $exception) { printf("Could not stop daemon: %s\n", $exception->getMessage()); exit($exception->getCode()); } break; default: print("unknown action\n"); exit(127); }
Run it
php ./crutch_worker_demo.php start 3
Check processes
ps aux | grep crutch_worker_demo
user 58576 0.0 0.0 140080 11624 ? Ss 17:58 0:00 php ./crutch_worker_demo.php start
user 58577 0.0 0.0 140080 9584 ? S 17:58 0:00 php ./crutch_worker_demo.php start
user 58578 0.0 0.0 140080 9584 ? S 17:58 0:00 php ./crutch_worker_demo.php start
user 58579 0.0 0.0 140080 9584 ? S 17:58 0:00 php ./crutch_worker_demo.php start
user 58580 0.0 0.0 9116 2488 pts/3 S+ 17:58 0:00 grep --color=auto crutch_worker_demo
You see 1 parent process (PID=58576) and 3 child processes (PIDs=58577, 58578 and 58579). Process 58580 is a grep, ignore it.
Stop process
php ./crutch_worker_demo.php stop
Check processes
ps aux | grep crutch_worker_demo
user 59825 0.0 0.0 9116 2488 pts/3 S+ 17:58 0:00 grep --color=auto crutch_worker_demo
All processes has been killed.