Doc #67336 [NEW]: blocking socket + signal handling

From: ignasimg at gmail dot com Operating system: Linux PHP version: Irrelevant Package: Sockets related Bug Type: Documentation Problem Bug description:blocking socket + signal handling Description: ------------ I'm using pcntl_signal to install a signal handler. Then I setup a socket, and call socket_set_block to make it blocking. Then I call sock_recvfrom. And while the sock_recvfrom is blocked, the party starts... *If it receives a signal which has not been installed previously with pcntl_signal, the program wake up again and die (expected behaviour). *If it receives a signal which has been installed with pcntl_signal, it won't wake up, and will call the signal handler when the sock_recvfrom wakes up. *Finally the SIGALRM seems to be special, and no matter it has been installed or not it'll wake up the process from the sock_recvfrom. In my opinion it shall treat all the signals as SIGALRM, if somebody wants to block some signals they can do it themselves with pcntl_sigprocmask. But my point is: http://www.php.net/manual/en/function.socket-set-block.php Says: "When an operation (e.g. receive, send, connect, accept, ...) is performed on a blocking socket, the script will pause its execution until it receives a signal or it can perform the operation. " More on the SIGALRM workaround: http://blog.andrewrose.co.uk/2008/02/php-getting-signals-through-to-blocking.html -- Edit bug report at https://bugs.php.net/bug.php?id=67336&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=67336&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=67336&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=67336&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=67336&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=67336&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=67336&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=67336&r=needscript Try newer version: https://bugs.php.net/fix.php?id=67336&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=67336&r=support Expected behavior: https://bugs.php.net/fix.php?id=67336&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=67336&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=67336&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=67336&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=67336&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=67336&r=dst IIS Stability: https://bugs.php.net/fix.php?id=67336&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=67336&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=67336&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=67336&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=67336&r=mysqlcfg