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From:	"Markus Hoenicka" <Markus DOT Hoenicka AT uth DOT tmc DOT edu>
MIME-Version:	1.0
Message-ID:	<14900.63927.152000.146634@gargle.gargle.HOWL>
Date:	Mon, 11 Dec 2000 15:58:47 +0000 (CT0)
To:	Corinna Vinschen <cygwin AT cygwin DOT com>
Subject:	Re: socket read()/write() problem in 1.1.6 [solved]
In-Reply-To:	<00120813285702.12851@cygbert>
References:	<1529f1887b DOT 1887b1529f AT uth DOT tmc DOT edu>
	<00120813285702 DOT 12851 AT cygbert>
X-Mailer:	VM 6.75 under Emacs 20.6.1

Finally it turns out that my problem was indeed a timing problem - not
the read()/write() timing problem that Corinna suspected but a timing
problem when closing the socket from the server side. I was not aware
that my server relied on a certain time passing between the last
write() on the server side and the closing of the socket as it was
obscured by lots of cleanup code in my original program. This got
clearer and clearer the simpler my testcases got. The newer Cygwin
versions apparently speed up this cleanup or the closing of the socket
and thus expose the flawed design of my server. Of course it is easy
to work around this once you know.

I'm sorry for the noise that I created, but putting together the
testcases and Corinna's input finally helped me to see the problem.

regards,
Markus

-- 
Markus Hoenicka, PhD
UT Houston Medical School
Dept. of Integrative Biology and Pharmacology
6431 Fannin MSB4.114
Houston, TX 77030
(713) 500-6313, -7477
(713) 500-7444 (fax)
Markus DOT Hoenicka AT uth DOT tmc DOT edu
http://ourworld.compuserve.com/homepages/hoenicka_markus/


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