note 52429 added to function.socket-set-option
| From: | drenintell at osu1 dot php dot net | Date: | Sun, 01 May 2005 00:19:57 +0000 |
| Subject: | note 52429 added to function.socket-set-option | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-88801@lists.php.net to get a copy of this message | ||
To expand a bit more on what "tim at e2-media dot co dot nz" started.
SO_SNDTIMEO is one of the many constants you can use with socket_set_option.
See http://ca.php.net/manual/en/ref.sockets.php
for the available Predefind Constants and visit http://man.he.net/man2/setsockopt for the meaning of
the ones relevant.
Tim's example might seem at first a bit non-intuitive since he is using the SO_SNDTIMEO
constant. Which means, if the socket has to send out data, it must do it within the limit specified
- in his case 10 seconds. Usually you won't set a timeout for sending out data. Nevertheless,
the example is valid, and there are situations where you need to do so.
A more intuitive use of socket_set_option would be to set a time out for a blocking socket (a socket
that waits for data to be receive when read from). You would do this like so:
socket_set_option($socket,SOL_SOCKET, SO_RCVTIMEO, array("sec"=>0,
"usec"=>100));
Notice that sec= 0 and usec= 100; Depending on how long you want your program to wait to recieve
data, you might want to change these values.
Regards,
drenintell
----
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