Bug->Req #77603 [Opn]: Continued sleep after signal interruption

Edit report at https://bugs.php.net/bug.php?id=77603&edit=1 ID: 77603 Updated by: bukka@php.net Reported by: aliborhani1 at gmail dot com -Summary: Unexpected behavior with reloading php-fpm and sleep method +Summary: Continued sleep after signal interruption Status: Open -Type: Bug +Type: Feature/Change Request -Package: FPM related +Package: Program Execution Operating System: Ubuntu 18.04.2 LTS PHP Version: 7.3.2 -Assigned To: +Assigned To: bukka Block user comment: N Private report: N New Comment: I have been testing and thinking about this and I don't think this should be considered as a bug. The reason is that sleep is signal interruptable so it behaves like in C. I see however a use case for continued sleep after the signal handling so I think we should consider some additional parameter for sleep method or even change of the default. It needs to be handled as a feature though and it is not an FPM issue but more a standard ext issues. Previous Comments: ------------------------------------------------------------------------ [2019-02-11 11:53:10] aliborhani1 at gmail dot com Description: ------------ When I use sleep() method in my script and set process_control_timeout to 20s in php-fpm.conf, I see unexpected behavior when I reload the php-fpm. It seems it doesn't respect the sleep's argument (e.g. 10 seconds) and wakes up the script too early. However, when I use exec('sleep 10') instead, it works correctly: ``` [02-11-2019 11:39:15] before sleep [02-11-2019 11:39:25] after sleep [02-11-2019 11:39:25] after echo ``` PHP Version: PHP 7.3.2-3+ubuntu18.04.1+deb.sury.org+1 (cli) (built: Feb 8 2019 15:43:57) ( NTS ) Webserver: Nginx - using unix socket Test script: --------------- <?php slog("before sleep"); // this works: // exec('sleep 10'); // but, this doesn't work: sleep(10); slog("after sleep"); echo "Done!" . PHP_EOL; slog("after echo"); function slog(string $text) { $text = '[' . strftime("%m-%d-%Y %H:%M:%S") . '] ' . $text . PHP_EOL; file_put_contents(__DIR__ . '/app.log', $text, FILE_APPEND); } Expected result: ---------------- [02-11-2019 11:38:43] before sleep [02-11-2019 11:38:53] after sleep [02-11-2019 11:38:53] after echo Actual result: -------------- [02-11-2019 11:38:43] before sleep [02-11-2019 11:38:46] after sleep [02-11-2019 11:38:46] after echo ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=77603&edit=1