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Multi-client echo server

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Special Forums IP Networking Multi-client echo server
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Old 05-16-2008
Multi-client echo server
Hello

I am currently learning how to program a multi-client server. I still have some code to configure, however I think I am fairly near to the end.

My main problem is that whenever I connect with one client and receive an echo, do the same with another client and receive an echo, then try and receive another echo for the first client the server seems to stall at the point where it is supposed to receive the message. The client says it has sent the message so I don't know why this is happening.

And yet when server doesn't send an echo back to the first client, the second client can operate normally. I've also noticed that only when the second client closes does the echo to the first client return, but this is obviously not what I intended.


The echo service works fine in single client mode, it is when simultaneous access is attempted that problems arise.

Could anyone tell me why this is happening?

Any help would be much appreciated.
Last edited by slanj; 05-16-2008 at 07:30 PM..
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LEARN ABOUT DEBIAN

bup-server

bup-server(1)						      General Commands Manual						     bup-server(1)

NAME

       bup-server - the server side of the bup client-server relationship

SYNOPSIS

       bup server

DESCRIPTION

       bup server  is  the  server  side of a remote bup session.  If you use bup-split(1) or bup-save(1) with the -r option, they will ssh to the
       remote server and run bup server to receive the transmitted objects.

       There is normally no reason to run bup server yourself.

MODES

       smart  In this mode, the server checks each incoming object against the idx files in its repository.  If  any  object  already  exists,	it
	      tells  the  client  about  the  idx file it was found in, allowing the client to download that idx and avoid sending duplicate data.
	      This is bup-server's default mode.

       dumb   In this mode, the server will not check its local index before writing an object.  To avoid writing duplicate  objects,  the  server
	      will tell the client to download all of its .idx files at the start of the session.  This mode is useful on low powered server hard-
	      ware (ie router/slow NAS).

FILES

       $BUP_DIR/bup-dumb-server
	      Activate dumb server mode, as discussed above.  This file is not created by default in new repositories.

SEE ALSO

       bup-save(1), bup-split(1)

BUP

       Part of the bup(1) suite.

AUTHORS

       Avery Pennarun <apenwarr@gmail.com>.

Bup unknown-															     bup-server(1)