rdelaage
/
postgresql
mirror of https://git.postgresql.org/git/postgresql.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Use macros instead of hardcoded offsets for LWLock initialization 

This makes the code slightly easier to follow, as the initialization
relies on an offset that overlapped with an equivalent set of macros
defined, which are used in other places already.

Author: Japin Li
Discussion: https://postgr.es/m/MEYP282MB1669FB410006758402F2C3A2B6E00@MEYP282MB1669.AUSP282.PROD.OUTLOOK.COM
This commit is contained in:
Michael Paquier 2020-11-24 12:39:58 +09:00
parent 789b938bf2
commit d03d7549b2
1 changed files with 3 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
src/backend/storage/lmgr/lwlock.c
View File

@ -525,18 +525,17 @@ InitializeLWLocks(void)
LWLockInitialize(&lock->lock, id);
/* Initialize buffer mapping LWLocks in main array */
lock = MainLWLockArray + NUM_INDIVIDUAL_LWLOCKS;
lock = MainLWLockArray + BUFFER_MAPPING_LWLOCK_OFFSET;
for (id = 0; id < NUM_BUFFER_PARTITIONS; id++, lock++)
LWLockInitialize(&lock->lock, LWTRANCHE_BUFFER_MAPPING);
/* Initialize lmgrs' LWLocks in main array */
lock = MainLWLockArray + NUM_INDIVIDUAL_LWLOCKS + NUM_BUFFER_PARTITIONS;
lock = MainLWLockArray + LOCK_MANAGER_LWLOCK_OFFSET;
for (id = 0; id < NUM_LOCK_PARTITIONS; id++, lock++)
LWLockInitialize(&lock->lock, LWTRANCHE_LOCK_MANAGER);
/* Initialize predicate lmgrs' LWLocks in main array */
lock = MainLWLockArray + NUM_INDIVIDUAL_LWLOCKS +
NUM_BUFFER_PARTITIONS + NUM_LOCK_PARTITIONS;
lock = MainLWLockArray + PREDICATELOCK_MANAGER_LWLOCK_OFFSET;
for (id = 0; id < NUM_PREDICATELOCK_PARTITIONS; id++, lock++)
LWLockInitialize(&lock->lock, LWTRANCHE_PREDICATE_LOCK_MANAGER);