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  Framing TCP streams in SGS  (Read 1042 times)
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Offline endolf

JGO Coder


Medals: 7
Exp: 15 years


Current project release date: sometime in 3003


« Posted 2006-04-08 18:45:50 »

Hi

Most of my messages are way way way less than the maximum packet size in TCP. Using NIO if I don't set the no delay on the tcp socket, then I may get more than one message arriving at the same time server side. When I read the bytearray it may contain the end of the last message receieved, followed by any number of whole messages, followed by the start of a message. This means I need to put message lengths in so that I can read the right number of bytes off, or save them for the rest of the message to arrive.

When usings SGS do I need to do this, or and I garunteed that when I get a data recieved callback, that I have 1 whole message only on that byte buffer?

Thanks

Endolf

Jeff says

(19:38:05) Jeff: Its doing the framing under the hood
(19:38:13) Jeff: Each callback shoudl be one complete packet
(19:38:17) Jeff: or its my bug.

Sorted Smiley

Offline Jeff

JGO Coder




Got any cats?


« Reply #1 - Posted 2006-04-08 19:33:39 »

Btw.  We *do* set tcp no delay in the TCPIP User Manager.

Otherwise nagle will inroduce nasty latencies on small packets.

Got a question about Java and game programming?  Just new to the Java Game Development Community?  Try my FAQ.  Its likely you'll learn something!

http://wiki.java.net/bin/view/Games/JeffFAQ
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