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| author | Noah Misch <noah@leadboat.com> | 2024-09-24 15:25:18 -0700 |
|---|---|---|
| committer | Noah Misch <noah@leadboat.com> | 2024-09-24 15:25:18 -0700 |
| commit | dbf3f974ee04d24547690268b1fc2b7eb12b4ebc (patch) | |
| tree | 6da463710baa3391e279d17121f295738fb183d1 /src | |
| parent | ac30021356e7aa05a069741d17c3db3e8d520933 (diff) | |
| download | postgresql-dbf3f974ee04d24547690268b1fc2b7eb12b4ebc.tar.gz postgresql-dbf3f974ee04d24547690268b1fc2b7eb12b4ebc.zip | |
Warn if LOCKTAG_TUPLE is held at commit, under debug_assertions.
The current use always releases this locktag. A planned use will
continue that intent. It will involve more areas of code, making unlock
omissions easier. Warn under debug_assertions, like we do for various
resource leaks. Back-patch to v12 (all supported versions), the plan
for the commit of the new use.
Reviewed by Heikki Linnakangas.
Discussion: https://postgr.es/m/20240512232923.aa.nmisch@google.com
Diffstat (limited to 'src')
| -rw-r--r-- | src/backend/storage/lmgr/lock.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/backend/storage/lmgr/lock.c b/src/backend/storage/lmgr/lock.c index bbd444745fd..09a8ac15784 100644 --- a/src/backend/storage/lmgr/lock.c +++ b/src/backend/storage/lmgr/lock.c @@ -2305,6 +2305,16 @@ LockReleaseAll(LOCKMETHODID lockmethodid, bool allLocks) locallock->numLockOwners = 0; } +#ifdef USE_ASSERT_CHECKING + + /* + * Tuple locks are currently held only for short durations within a + * transaction. Check that we didn't forget to release one. + */ + if (LOCALLOCK_LOCKTAG(*locallock) == LOCKTAG_TUPLE && !allLocks) + elog(WARNING, "tuple lock held at commit"); +#endif + /* * If the lock or proclock pointers are NULL, this lock was taken via * the relation fast-path (and is not known to have been transferred). |