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Date:	Wed, 07 May 2003 09:33:26 -0400
From:	Jason Tishler <jason AT tishler DOT net>
Subject:	Re: cygipc (and PostgreSQL) XP problem resolved!
In-reply-to:	<3EB84F52.3020608@ece.gatech.edu>
To:	Charles Wilson <cwilson AT ece DOT gatech DOT edu>
Cc:	cygwin AT cygwin DOT com
Mail-followup-to:	Charles Wilson <cwilson AT ece DOT gatech DOT edu>, cygwin AT cygwin DOT com
Message-id:	<20030507133326.GA1824@tishler.net>
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References:	<20030506174725 DOT GE1652 AT tishler DOT net>
	<3EB84F52 DOT 3020608 AT ece DOT gatech DOT edu>

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Chuck,

On Tue, May 06, 2003 at 08:12:02PM -0400, Charles Wilson wrote:
> Jason Tishler wrote:
> >Are you willing to accept a cygipc patch to correct this problem?
> 
> Always.

See attached for the patch and associated ChangeLog entry.  IMO, I opted
for the least intrusive albeit somewhat ugly approach.  Is it
acceptable?  If not, can you suggest a better way to implement this
change?

Thanks,
Jason

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diff -rup cygipc-1.13-2.orig/include/IpcNtLit.h cygipc-1.13-2/include/IpcNtLit.h
--- cygipc-1.13-2.orig/include/IpcNtLit.h	2002-11-12 14:14:07.000000000 -0500
+++ cygipc-1.13-2/include/IpcNtLit.h	2003-05-07 07:23:41.000000000 -0400
@@ -48,24 +48,33 @@
 /************************************************************************/
 #if defined OLDCYGIPC
 # define CYGWIN_IPCNT_PKGNAME		"cygipc_"
-# define CYGWIN_IPCNT_SEMCTL		"MultiSemCtl_"
-# define CYGWIN_IPCNT_SEMSEM		"MultiSemSem_"
-# define CYGWIN_IPCNT_SEMSHM		"MultiSemShm_"
-# define CYGWIN_IPCNT_SEMMSG		"MultiSemMsg_"
+# define CYGWIN_IPCNT_SEMCTL_BASE	"MultiSemCtl_"
+# define CYGWIN_IPCNT_SEMSEM_BASE	"MultiSemSem_"
+# define CYGWIN_IPCNT_SEMSHM_BASE	"MultiSemShm_"
+# define CYGWIN_IPCNT_SEMMSG_BASE	"MultiSemMsg_"
 # define CYGWIN_IPCNT_FILESEM		"/tmp/MultiFileSem"
 # define CYGWIN_IPCNT_FILESHM		"/tmp/MultiFileShm"
 # define CYGWIN_IPCNT_FILEMSG		"/tmp/MultiFileMsg"
 #else
 # define CYGWIN_IPCNT_PKGNAME		"cygipc2_"
-# define CYGWIN_IPCNT_SEMCTL		"MultiSemCtl2_"
-# define CYGWIN_IPCNT_SEMSEM		"MultiSemSem2_"
-# define CYGWIN_IPCNT_SEMSHM		"MultiSemShm2_"
-# define CYGWIN_IPCNT_SEMMSG		"MultiSemMsg2_"
+# define CYGWIN_IPCNT_SEMCTL_BASE	"MultiSemCtl2_"
+# define CYGWIN_IPCNT_SEMSEM_BASE	"MultiSemSem2_"
+# define CYGWIN_IPCNT_SEMSHM_BASE	"MultiSemShm2_"
+# define CYGWIN_IPCNT_SEMMSG_BASE	"MultiSemMsg2_"
 # define CYGWIN_IPCNT_FILESEM		"/tmp/MultiFileSem2"
 # define CYGWIN_IPCNT_FILESHM		"/tmp/MultiFileShm2"
 # define CYGWIN_IPCNT_FILEMSG		"/tmp/MultiFileMsg2"
 #endif
 
+#define NAMESPACE_PREFIX "Global\\"
+#define FULL_NAMESPACE_PATH(name) \
+	((LOBYTE(LOWORD(GetVersion())) >= 5 && \
+	HIBYTE(LOWORD(GetVersion())) >= 1) ? NAMESPACE_PREFIX name : name) \
+
+#define CYGWIN_IPCNT_SEMCTL	FULL_NAMESPACE_PATH(CYGWIN_IPCNT_SEMCTL_BASE)
+#define CYGWIN_IPCNT_SEMSEM	FULL_NAMESPACE_PATH(CYGWIN_IPCNT_SEMSEM_BASE)
+#define CYGWIN_IPCNT_SEMSHM	FULL_NAMESPACE_PATH(CYGWIN_IPCNT_SEMSHM_BASE)
+#define CYGWIN_IPCNT_SEMMSG	FULL_NAMESPACE_PATH(CYGWIN_IPCNT_SEMMSG_BASE)
 /************************************************************************/
 /* SEMAPHORE								*/
 /************************************************************************/

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2003-05-07  Jason Tishler  <jason AT tishler DOT net>

	* include/IpcNtLit.h (CYGWIN_IPCNT_SEMCTL_BASE): New define.
	(CYGWIN_IPCNT_SEMSEM_BASE): Ditto.
	(CYGWIN_IPCNT_SEMSHM_BASE): Ditto.
	(CYGWIN_IPCNT_SEMMSG_BASE): Ditto.
	(NAMESPACE_PREFIX): Ditto.
	(FULL_NAMESPACE_PATH): New macro.
	(CYGWIN_IPCNT_SEMCTL): Change to use FULL_NAMESPACE_PATH.
	(CYGWIN_IPCNT_SEMSEM): Ditto.
	(CYGWIN_IPCNT_SEMSHM): Ditto.
	(CYGWIN_IPCNT_SEMMSG): Ditto.


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