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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/storage/ipc/shmem.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/storage/ipc/shmem.c,v 1.64 2002/03/06 06:10:05 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/storage/ipc/shmem.c,v 1.65 2002/05/05 00:03:28 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -61,6 +61,7 @@
#include "postgres.h"
#include "access/transam.h"
#include "storage/pg_shmem.h"
#include "storage/spin.h"
#include "utils/tqual.h"