database/postgres
database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-05-06 19:59:18 +03:00
Code

Reorder LOCALLOCK structure members to compact the size

Browse Source 
Save 8 bytes (on x86-64) by filling up padding holes.

Author: Takayuki Tsunakawa <tsunakawa.takay@jp.fujitsu.com>
Discussion: https://www.postgresql.org/message-id/20190219001639.ft7kxir2iz644alf@alap3.anarazel.de
This commit is contained in:
Peter Eisentraut 2019-03-19 14:07:08 +01:00
parent 75c57058b0
commit 28988a84cf
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/include/storage/lock.h
View File

@ -404,15 +404,15 @@ typedef struct LOCALLOCK
LOCALLOCKTAG tag; /* unique identifier of locallock entry */ LOCALLOCKTAG tag; /* unique identifier of locallock entry */
/* data */ /* data */
uint32 hashcode; /* copy of LOCKTAG's hash value */
LOCK *lock; /* associated LOCK object, if any */ LOCK *lock; /* associated LOCK object, if any */
PROCLOCK *proclock; /* associated PROCLOCK object, if any */ PROCLOCK *proclock; /* associated PROCLOCK object, if any */
uint32 hashcode; /* copy of LOCKTAG's hash value */
int64 nLocks; /* total number of times lock is held */ int64 nLocks; /* total number of times lock is held */
bool holdsStrongLockCount; /* bumped FastPathStrongRelationLocks */
bool lockCleared; /* we read all sinval msgs for lock */
int numLockOwners; /* # of relevant ResourceOwners */ int numLockOwners; /* # of relevant ResourceOwners */
int maxLockOwners; /* allocated size of array */ int maxLockOwners; /* allocated size of array */
LOCALLOCKOWNER *lockOwners; /* dynamically resizable array */ LOCALLOCKOWNER *lockOwners; /* dynamically resizable array */
bool holdsStrongLockCount; /* bumped FastPathStrongRelationLocks */
bool lockCleared; /* we read all sinval msgs for lock */
} LOCALLOCK; } LOCALLOCK;
#define LOCALLOCK_LOCKMETHOD(llock) ((llock).tag.lock.locktag_lockmethodid) #define LOCALLOCK_LOCKMETHOD(llock) ((llock).tag.lock.locktag_lockmethodid)