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The recv() API doesn't have a timeout capability. Don't let this stop you, however. There are (at least) two ways to time out a socket.
a) you can call the select() API to see if there's data to receive. Select can wait until there's data to receive, or until a timeout occurs. If you call it before calling recv() each time you can write your code so that it only calls recv() if there's data to receive -- if a timeout occurs, you don't call recv(), you just say "time out!"
b) You can use the alarm() API to have the system send you a signal after a specified number of seconds. If your program receives a signal, it will abort a socket API. The recv() API will return -1 and set errno to EINTR (which means "interrupted by signal")
If you always tell it to send you a signal before calling recv(), this will result in a timeout.
I've described both of these techniques, and even provided sample code, on this list in the past. Please search the archives.
--- Scott Klement http://www.scottklement.com On Tue, 8 Aug 2006, Robert Upshall wrote:
Can anybody tell me if it is possible to set the timeout value on a socket receive? -- This is the RPG programming on the AS400 / iSeries (RPG400-L) mailing list To post a message email: RPG400-L@xxxxxxxxxxxx To subscribe, unsubscribe, or change list options, visit: http://lists.midrange.com/mailman/listinfo/rpg400-l or email: RPG400-L-request@xxxxxxxxxxxx Before posting, please take a moment to review the archives at http://archive.midrange.com/rpg400-l.
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