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Create an internal semaphore API that is not tied to SysV semaphores.

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As proof of concept, provide an alternate implementation based on POSIX
semaphores.  Also push the SysV shared-memory implementation into a
separate file so that it can be replaced conveniently.
This commit is contained in:
Tom Lane
2002-05-05 00:03:29 +00:00
parent 91fc10fdac
commit 72a3902a66
37 changed files with 1659 additions and 1370 deletions
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3
src/backend/libpq/pqcomm.c
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@@ -29,7 +29,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: pqcomm.c,v 1.132 2002/04/21 01:03:33 tgl Exp $
* $Id: pqcomm.c,v 1.133 2002/05/05 00:03:28 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -79,6 +79,7 @@
#include "libpq/libpq.h"
#include "miscadmin.h"
#include "storage/ipc.h"
static void pq_close(void);