diff options
Diffstat (limited to 'src/backend/storage/lmgr/lmgr.c')
| -rw-r--r-- | src/backend/storage/lmgr/lmgr.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/backend/storage/lmgr/lmgr.c b/src/backend/storage/lmgr/lmgr.c index 5ae52dd14db..1543da61620 100644 --- a/src/backend/storage/lmgr/lmgr.c +++ b/src/backend/storage/lmgr/lmgr.c @@ -176,6 +176,34 @@ ConditionalLockRelationOid(Oid relid, LOCKMODE lockmode) } /* + * LockRelationId + * + * Lock, given a LockRelId. Same as LockRelationOid but take LockRelId as an + * input. + */ +void +LockRelationId(LockRelId *relid, LOCKMODE lockmode) +{ + LOCKTAG tag; + LOCALLOCK *locallock; + LockAcquireResult res; + + SET_LOCKTAG_RELATION(tag, relid->dbId, relid->relId); + + res = LockAcquireExtended(&tag, lockmode, false, false, true, &locallock); + + /* + * Now that we have the lock, check for invalidation messages; see notes + * in LockRelationOid. + */ + if (res != LOCKACQUIRE_ALREADY_CLEAR) + { + AcceptInvalidationMessages(); + MarkLockClear(locallock); + } +} + +/* * UnlockRelationId * * Unlock, given a LockRelId. This is preferred over UnlockRelationOid |