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Get rid of PID entries in shmem hash table; there is no longer any need

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for them, and making them just wastes time during backend startup/shutdown.
Also, remove compile-time MAXBACKENDS limit per long-ago proposal.
You can now set MaxBackends as high as your kernel can stand without
any reconfiguration/recompilation.
This commit is contained in:
Tom Lane
2001-09-07 00:27:30 +00:00
parent 0059c4216c
commit 863aceb54f
12 changed files with 213 additions and 316 deletions
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4
src/include/storage/shmem.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: shmem.h,v 1.29 2001/06/18 21:38:02 momjian Exp $
* $Id: shmem.h,v 1.30 2001/09/07 00:27:30 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -71,8 +71,6 @@ extern void *ShmemAlloc(Size size);
extern bool ShmemIsValid(unsigned long addr);
extern HTAB *ShmemInitHash(char *name, long init_size, long max_size,
HASHCTL *infoP, int hash_flags);
extern bool ShmemPIDLookup(int pid, SHMEM_OFFSET *locationPtr);
extern SHMEM_OFFSET ShmemPIDDestroy(int pid);
extern void *ShmemInitStruct(char *name, Size size, bool *foundPtr);