#44614 [NEW]: signal handlers fail to execute when signal interrupts a socket_select

From: dan at auctionharmony dot com Operating system: Linux PHP version: 5.2.6RC3 PHP Bug Type: PCNTL related Bug description: signal handlers fail to execute when signal interrupts a socket_select Description: ------------ When waiting in a socket_select (and presumably a stream_select, but I have not tested it) a previously set signal handler is not executed when a signal is received. The select returns false as would be expected. The analog code in C is also attached. It correctly executes the signal handler. Tested on PHP 5.1.6(CentOS), 5.2.6_rc1(Gentoo), 5.2.6-rc3(Gentoo) Reproduce code: --------------- //PHP: when SIGINT is recieved, socket_select returns false, sig_handler is not run pcntl_signal(SIGINT, "sig_handler"); $sock = socket_create_listen($port); $read_socks = array($sock); $n = NULL; $foo = socket_select($read_socks, $n, $n, NULL); //C: when SIGINT is recieved, select returns -1, sig_handler is run signal(SIGINT, sig_handler); int sockfd = socket(PF_INET, SOCK_STREAM, 0); // do some error bind(sockfd, (struct sockaddr *)&my_addr, sizeof my_addr); listen(sockfd, 10); fd_set read_fds; FD_ZERO(&read_fds); FD_SET(sockfd, &read_fds); select(sockfd+1, &read_fds, NULL, NULL, NULL) Expected result: ---------------- I expect the result to be like the equivalent C where the signal handler is run and select returns error. Actual result: -------------- Select returns false, but unlike the equivalent C the signal handler is not run -- Edit bug report at http://bugs.php.net/?id=44614&edit=1 -- Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=44614&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=44614&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=44614&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=44614&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=44614&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=44614&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=44614&r=needscript Try newer version: http://bugs.php.net/fix.php?id=44614&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=44614&r=support Expected behavior: http://bugs.php.net/fix.php?id=44614&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=44614&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=44614&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=44614&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=44614&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=44614&r=dst IIS Stability: http://bugs.php.net/fix.php?id=44614&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=44614&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=44614&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=44614&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=44614&r=mysqlcfg