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Mail Archives: cygwin/2003/06/19/11:51:13

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From: Joe Buehler <jbuehler AT hekimian DOT com>
Subject: cygipc semaphores not persistent?
Date: Thu, 19 Jun 2003 11:49:30 -0400
Organization: Spirent Communications, Inc.
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I am attempting to use cygipc for its semaphore functionality
in porting some existing UNIX code.

It would appear that semaphores are not persistent?

The code depends on the UNIX semantic of a semaphore being a global
system object that exists regardless of whether any processes are
currently using it.

I have processes coming and going, using the semaphore to mediate
access to a disk-based queue.  I have been debugging the code,
and it appears that the semaphore is destroyed when no process has
it open?
-- 
Joe Buehler



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