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Article #532

Re: Programming problem: IPXListenForPacket

#532
From: Doug Cornholio
Date: Fri, 17 Nov 1995 00:00
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jt@fuw.edu.pl (Jerzy Tarasiuk) wrote:

>>>>>> "m" == mist  <mist@cyberus.ca> writes:
>m> I am issuing IPXListenForPacket, and the ECB's inUse flag returns F7h after the function call.
>m> What does F7h indicate? It is not listed in the documentation...... if everything went well I think
>m> it should be FEh (waiting for data) so it indicates everything hasn't gone well, but I don't know
>m> what's gone wrong...

>But why do you worry about it? If there is anything wrong,
>the inUse becomes 0 and completionCode becomes non-zero.
>The strange inUse value most likely is some intermediate
>state like "just receiving" or "in event queue"...
>Oh, of course make sure the byte you check is just inUse.

What if I'm getting an ECB inUse flag value of FEh but never get a 0? 
I'm using the Windows Client and Visual C++ 1.5 in a Win95
environment. I'm trying to submit an ECB without an ESRaddress, so I'm
polling the ECB to check inUse.

At first I thought that polling often would prevent the Novell client
from changing the inUse value, so I waited 10 seconds before polling.
I know for sure that I am sending a valid packet from another
workstation, as I am using already-tested software on that end; yet my
listening side never receives a message (or at least the inUse value
never changes).

Any suggestions?
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From: dougf@startel.com (Doug Cornholio)
Subject: Re: Programming problem: IPXListenForPacket
Date: 1995/11/17
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