note 115984 added to function.pcntl-signal

From: Date: Wed, 22 Oct 2014 19:40:12 +0000
Subject: note 115984 added to function.pcntl-signal
Groups: php.notes php.notes 
Request: Send a blank email to php-notes+get-200715@lists.php.net to get a copy of this message
Looks like php uses RealTime signals. This means that if one signal is currently processed, then other signals will not be lost. just for example <?php pcntl_signal(SIGHUP, SIG_IGN) ?> in strace log looks like this "rt_sigaction(SIGHUP, {SIG_IGN, [], SA_RESTORER|SA_RESTART, 0x7f8caf83cc30}, {SIG_DFL, [], 0}, 8) = 0" And code for testing <?php pcntl_signal(SIGHUP, function($signo){ echo "1\n"; sleep(2); echo "2\n"; }); while(true){ sleep(1); pcntl_signal_dispatch(); } ?> Run this and send how many SIGHUP signals as you want. All of them will be processed. P.S. I guess "all of them". I couldn't found real signal queue size. Will appreciate if someone points me. ---- Server IP: 72.52.91.14 Probable Submitter: 89.200.254.161 ---- Manual Page -- http://php.net/manual/en/function.pcntl-signal.php Edit -- https://master.php.net/note/edit/115984 Del: integrated -- https://master.php.net/note/delete/115984/integrated Del: useless -- https://master.php.net/note/delete/115984/useless Del: bad code -- https://master.php.net/note/delete/115984/bad+code Del: spam -- https://master.php.net/note/delete/115984/spam Del: non-english -- https://master.php.net/note/delete/115984/non-english Del: in docs -- https://master.php.net/note/delete/115984/in+docs Del: other reasons-- https://master.php.net/note/delete/115984 Reject -- https://master.php.net/note/reject/115984 Search -- https://master.php.net/manage/user-notes.php

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