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  • Subject: RE: TCP/IP Sockets -- maintaining multiple connections?
  • From: David Gibbs <David.Gibbs@xxxxxxxxxxxxx>
  • Date: Mon, 3 May 1999 08:55:20 -0500

> the accept() returns a NEW socket descriptor.  You would then 
> use that 
> descriptor when sending/receiving to this new box.  The sockaddr 
> structure you pass is an ouput parm (output from the API).  accept() 
> puts the address information of the system requesting the connection.

Ah... ok, I was confused by some other sockets documentation (non '400
centric) I was reading.

> Also, this is a very good place to use threads...or something like 
> them.  That way each thread only has to worry about 1 
> connection.  You 
> then use cross thread communications to tell the thread from server2 
> that it has data from server1 to send.  These comminations can happen 
> via a combination of message queues  (slow), data queues 
> (fast),  user 
> queues (very fast) and/or mutex's.  It all depends on the specific 
> application requirements.

Well, threading & C are out of the question at this point.  I have to target
V3R2 (lowest OS400 release we support) and I don't know C very well
(although I will admit, knowledge of C in supporting the RPGLE code would
certainly help).

david
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