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Date: Mon, 5 Aug 2002 18:01:18 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: _exit() missing WSACleanup() call?
Message-ID: <20020805180118.I3921@cygbert.vinschen.de>
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References: <200208051623 DOT 58635 DOT juergen AT pullmoll DOT de>
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On Mon, Aug 05, 2002 at 04:23:45PM +0200, Juergen Buchmueller wrote:
> every child that inherits a socket handle - but the CYGWIN libc 
> implementation does not seem to call WSACleanup() during the _exit() function 
> cleanup in that case?
> 
> The effect is that after a few minutes, after maybe 100 child processes were 
> forked and exited again, Windows does something on a severity scale between 
> displaying message boxes about a lack of resources to hard lockups with 
> faults in 'kernel32.dll'. I'm lost.
> 
> I tried to WSACleanup() in my user osd_exit() function to no avail. My best 
> guess is that there are other resources which I cannot give free this way?

When calling WSACleanup() in your application doesn't help, it's
somewhat likely that the problem is actually in your code.  What
is the parent process doing with the sockets?  Is it surely closing
and (perhaps) shutting them down properly?  Did you look for netstat
output?

> The same project runs fine for days on various FreeBSD and GNU/Linux systems.

That's actually not good an example.  The socket implementation is
*waaayyyy* cleaner in BSD and Linux than is Winsock.

Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Developer                                mailto:cygwin AT cygwin DOT com
Red Hat, Inc.

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