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Allocate a few extra LWLocks for possible use by add-on modules.

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Per request from Marc Munro.
This commit is contained in:
Tom Lane 2005-10-07 20:11:03 +00:00
parent 426d0158ca
commit bb55e583f6
2 changed files with 9 additions and 3 deletions
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5
src/backend/storage/lmgr/lwlock.c
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@ -15,7 +15,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/storage/lmgr/lwlock.c,v 1.30 2005/09/16 00:30:05 tgl Exp $
* $PostgreSQL: pgsql/src/backend/storage/lmgr/lwlock.c,v 1.31 2005/10/07 20:11:03 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -140,7 +140,8 @@ NumLWLocks(void)
*/
numLocks += 2 * NUM_SLRU_BUFFERS;
/* Perhaps create a few more for use by user-defined modules? */
/* Leave a few extra for use by user-defined modules. */
numLocks += NUM_USER_DEFINED_LWLOCKS;
return numLocks;
}

7
src/include/pg_config_manual.h
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@ -6,7 +6,7 @@
* for developers. If you edit any of these, be sure to do a *full*
* rebuild (and an initdb if noted).
*
* $PostgreSQL: pgsql/src/include/pg_config_manual.h,v 1.17 2005/10/03 22:55:56 tgl Exp $
* $PostgreSQL: pgsql/src/include/pg_config_manual.h,v 1.18 2005/10/07 20:11:03 tgl Exp $
*------------------------------------------------------------------------
*/
@ -74,6 +74,11 @@
*/
#define INDEX_MAX_KEYS 32
/*
* Number of spare LWLocks to allocate for user-defined add-on code.
*/
#define NUM_USER_DEFINED_LWLOCKS 4
/*
* Define this to make libpgtcl's "pg_result -assign" command process
* C-style backslash sequences in returned tuple data and convert