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Bruce Momjian <pgman@candle.pha.pa.us> writes: 

> Is there one LOCKMETHODCTL for every backend?  I thought there was only
> one of them.
>>
>> You're right, that line is erroneous; it should read
>>
>> size += MAX_LOCK_METHODS * MAXALIGN(sizeof(LOCKMETHODCTL));
>>
>> Not a significant error but it should be changed for clarity ...
This commit is contained in:
Bruce Momjian 2001-02-23 18:28:46 +00:00
parent 10bfaf58d2
commit 81b48493aa
2 changed files with 6 additions and 6 deletions
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5
src/backend/storage/lmgr/lock.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/storage/lmgr/lock.c,v 1.83 2001/02/22 23:20:06 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/storage/lmgr/lock.c,v 1.84 2001/02/23 18:28:46 momjian Exp $
*
* NOTES
* Outside modules can create a lock table and acquire/release
@ -1411,8 +1411,7 @@ LockShmemSize(int maxBackends)
size += MAXALIGN(sizeof(PROC_HDR)); /* ProcGlobal */
size += MAXALIGN(maxBackends * sizeof(PROC)); /* each MyProc */
size += MAXALIGN(maxBackends * sizeof(LOCKMETHODCTL)); /* each
* lockMethodTable->ctl */
size += MAXALIGN(MAX_LOCK_METHODS * sizeof(LOCKMETHODCTL)); /* each lockMethodTable->ctl */
/* lockHash table */
size += hash_estimate_size(NLOCKENTS(maxBackends),

7
src/include/storage/lock.h
View File

@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: lock.h,v 1.45 2001/02/22 23:02:33 momjian Exp $
* $Id: lock.h,v 1.46 2001/02/23 18:28:46 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -79,7 +79,8 @@ typedef int LOCKMETHOD;
/*
* This is the control structure for a lock table. It
* lives in shared memory:
* lives in shared memory. This information is the same
* for all backends.
*
* lockmethod -- the handle used by the lock table's clients to
* refer to the type of lock table being used.
@ -107,7 +108,7 @@ typedef struct LOCKMETHODCTL
} LOCKMETHODCTL;
/*
* Non-shared header for a lock table.
* Eack backend has a non-shared lock table header.
*
* lockHash -- hash table holding per-locked-object lock information
* holderHash -- hash table holding per-lock-holder lock information