TCP and Threads

[Don Dickinson]

Hi Paul,
Go ahead and send over that code you mentioned in your email and I'll have a look. I've been unsuccessful in sending you emails (they keep getting rejected). Also, I have a multi-threaded database that I use for in-house only purposes. If I can get it cleaned up I'll send you the code - maybe it'll help.
--Don

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dickinson.basicguru.com

[Paul Squires]

Thanks Dave, I'll try that. I looked at that a little bit before
and I was trying to create a new thread when the %FD_ACCEPT
message is called.

I'll strip my code down to the bare bones and use Eric's as a
model. Hopefully by tomorrow I'll get this working.

Dave, do you think creating threads will solve the bottleneck
I'm experiencing? I would hate to have to spend another day
fighting with my code just to find out I'm no further ahead.

Thanks,



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Paul Squires
mailto:[email protected][email protected]</A>

[Dave Navarro]

Take a look at Erik Olsen's code for an HTTP server. It uses multi-threading to handle tons of incoming clients.

I've tested it with up to 5000 simultaneous connections.

--Dave


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[Paul Squires]

I am officially going insane over this!

I have downloaded every example I can find regarding implementing
a TCP server. I was successful in applying Don Dickinson's rserver
solution to my database program, however when I tried calling
database functions in a loop (e.g. appending 100's of records) the
server came to a standstill. A process that would take a second or
two in standalone mode now took 20 or 30 seconds - ouch!

I figure it is a bottleneck with the sending and receiving of
TCP commands so I am trying to put each connection into its
own thread. I have banged my head against the wall so many times
that I can not focus any longer! Everytime the client connects
it GPF's at the call to the create thread.

Can some TCP client/server geniuses please share some code with
me on a simple client/server implementation that uses threads
for each connection????? Maybe I am just missing the boat with
this. If I can get this bottleneck resolved then I am off to the
races because my database DLL has already been modified to handle
both standalone (client only) and multiuser (client/server).

I have code available if anyone is willing to (or brave enough) to
peek into my demented attempt at TCP multithreading


Thanks,



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Paul Squires
mailto:[email protected][email protected]</A>