ID: 38273 Updated by: [EMAIL PROTECTED] Reported By: axelluttgens at swing dot be -Status: Open +Status: Feedback Bug Type: PCNTL related Operating System: Mac OS 10.4.7 PHP Version: 4.4.2 New Comment:
Please try using this CVS snapshot: http://snaps.php.net/php5.2-latest.tar.gz For Windows: http://snaps.php.net/win32/php5.2-win32-latest.zip Previous Comments: ------------------------------------------------------------------------ [2006-07-31 19:40:17] axelluttgens at swing dot be Description: ------------ It seems there is a problem with the construction of the return address to be used after an interrupt handler. Now, I'm not sure whether the problem is a general one, or more precisely located in the socket_xxx() family of functions. I used the socket_select() function for building the example, as I needed a function whose execution is liable to be suspended until the occurence of an interrupt. But the "workaround" described hereafter anyway seems to reveal some misbehavior. Reproduce code: --------------- Create an executable file, say "sigtest.php", with following contents: #!/usr/local/bin/php <?php declare(ticks = 1); $gotINT = FALSE; function SaveINT() { $GLOBALS['gotINT'] = TRUE; echo "Received SIGINT\n"; } function HandleINT() { echo "Handling SIGINT\n"; } function PollSigs() { if ($GLOBALS['gotINT']) HandleINT(); } pcntl_signal(SIGINT, 'SaveINT'); $endpoint = socket_create(AF_INET, SOCK_STREAM, SOL_TCP); socket_bind($endpoint, '127.0.0.1', 12345); socket_listen($endpoint, 10); while (!socket_select($r = array($endpoint), $w = NULL, $e = NULL, NULL)) if (($err = socket_last_error()) === SOCKET_EINTR) { # $err = $err; PollSigs(); } else { echo "socket_select() failed with $err\n"; exit(1); } ?> Expected result: ---------------- During execution of above file on the terminal, a break (^C) should result in: 1. the capture of SIGINT, and thus the execution of SaveINT(), 2. the continuation of execution after socket_select(), and thus the execution of HandleINT() consecutively to the call of PollSigs(). Actual result: -------------- [1] With above code, launching the executable yields: $ /Volumes/Data/Sources/sigtest.php ^C Warning: socket_select() unable to select [4]: Interrupted system call in /Volumes/Data/Sources/sigtest.php on line 31 Received SIGINT ^C Warning: socket_select() unable to select [4]: Interrupted system call in /Volumes/Data/Sources/sigtest.php on line 31 Handling SIGINT Received SIGINT [2] Now, uncomment the # $err = $err; line in the source and launch the executable again: $ /Volumes/Data/Sources/sigtest.php ^C Warning: socket_select() unable to select [4]: Interrupted system call in /Volumes/Data/Sources/sigtest.php on line 31 Received SIGINT Handling SIGINT ^C Warning: socket_select() unable to select [4]: Interrupted system call in /Volumes/Data/Sources/sigtest.php on line 31 Received SIGINT Handling SIGINT The dummy instruction (ie, $err = $err;) thus allows to restore exepected behavior. ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=38273&edit=1
