#34851 [Opn->Fbk]: SO_RECVTIMEO sec stands for usec!!!! and usec has no effect!

ID: 34851 Updated by: tony2001@php.net Reported By: khayll at motoros dot hu -Status: Open +Status: Feedback Bug Type: Sockets related Operating System: win 2k3 server PHP Version: 4.4.0 New Comment: Well, that's because USEC are *microseconds*, not milliseconds. Try to use sec=0 usec=5000000 instead. Previous Comments: ------------------------------------------------------------------------ [2005-10-13 17:52:20] khayll at motoros dot hu sorry I forgot a line from the code: I also decreased the sec param to 1 because for me the remote host is quite fast. <?php $socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP); socket_set_option($socket, SOL_SOCKET, SO_RCVTIMEO, array("sec"=>1, "usec"=>0)); socket_connect($socket, "81.182.13.109", "502"); $pdu = ""; $pdu .= chr(0x03).chr(floor(16000 / 256)).chr(16000 % 256).chr(floor(10 / 256)).chr(10 % 256); $rand = mt_rand(1,65535); //generate random adu id $adu = ""; $adu .= chr(floor($rand / 256)).chr($rand % 256).chr(0).chr(0).chr(floor(6 / 256)).chr(6 % 256).chr(1); $data = $adu.$pdu; socket_write($socket, $data, strlen($data)); $result = socket_read($socket, 512, PHP_BINARY_READ); echo socket_strerror(socket_last_error()); socket_shutdown($socket, 2); socket_close($socket); ?> ------------------------------------------------------------------------ [2005-10-13 17:41:05] khayll at motoros dot hu And if I set sec=0 usec=500000 (or 5 for a shorter timeout) it hangs, meaning to me, that usec has no effect. ------------------------------------------------------------------------ [2005-10-13 17:38:56] khayll at motoros dot hu Actual: Script gives timeout error but it does not wait for 5 seconds for the answer, as set in SO_RCVTIMEO. Expeted: to wait max. 5 second for remote host to answer, but script executes much faster. I tried to increase second to 500000 and then it works ok. ------------------------------------------------------------------------ [2005-10-13 16:16:23] tony2001@php.net And actual/expected results please? ------------------------------------------------------------------------ [2005-10-13 14:36:01] khayll at motoros dot hu <?php $socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP); socket_set_option($socket, SOL_SOCKET, SO_RCVTIMEO, array("sec"=>5, "usec"=>0)); socket_connect($socket, "81.182.13.109", "502"); $pdu = ""; $pdu .= chr(0x03).chr(floor(16000 / 256)).chr(16000 % 256).chr(floor(10 / 256)).chr(10 % 256); $rand = mt_rand(1,65535); //generate random adu id $adu = ""; $adu .= chr(floor($rand / 256)).chr($rand % 256).chr(0).chr(0).chr(floor(6 / 256)).chr(6 % 256).chr(1); socket_write($socket, $data, strlen($data)); $result = socket_read($socket, 512, PHP_BINARY_READ); echo socket_strerror(socket_last_error()); socket_shutdown($socket, 2); socket_close($socket); ?> ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/34851 -- Edit this bug report at http://bugs.php.net/?id=34851&edit=1