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Message-ID:	<20041028234642.41072.qmail@web14101.mail.yahoo.com>
Date:	Thu, 28 Oct 2004 16:46:42 -0700 (PDT)
From:	D L <jhnlmn AT yahoo DOT com>
Subject:	Is SEM_UNDO problem fixed (in v 1.5.11)?
To:	cygwin AT cygwin DOT com
MIME-Version:	1.0

Hi,

I am calling semop to increment or decrement
an IPC semaphore with SEM_UNDO. Then I abort
the process using Ctrl+C and check the semaphore
status. I expect the effect of the semop
to be undone at that point, but it is not.

It is either a bug or I am doing something wrong.

I see that the problem with SEM_UNDO was already
reported and on 2 Mar 2004 Corinna Vinschen wrote:

"Yes, it's a bug in Cygserver.  "
...
"I've checked in a fix to Cygserver."

I am using cygserver: (cygwin) 1.10
API version 1.5.11(0.116/4/1)-(3.0.0.2) 2004-09-04
23:17

So, my question is whether the SEM_UNDO was indeed  
fixed and, whether it was recently tested and, if yes,
how to use it properly to have the result of semop
undone on process exit/abort.

Thank you
John



		
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