diff options
Diffstat (limited to 'src/include/storage/lmgr.h')
| -rw-r--r-- | src/include/storage/lmgr.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/include/storage/lmgr.h b/src/include/storage/lmgr.h index 975b6f8155d..8288e7d5054 100644 --- a/src/include/storage/lmgr.h +++ b/src/include/storage/lmgr.h @@ -53,6 +53,9 @@ extern void UnlockRelationIdForSession(LockRelId *relid, LOCKMODE lockmode); /* Lock a relation for extension */ extern void LockRelationForExtension(Relation relation, LOCKMODE lockmode); extern void UnlockRelationForExtension(Relation relation, LOCKMODE lockmode); +extern bool ConditionalLockRelationForExtension(Relation relation, + LOCKMODE lockmode); +extern int RelationExtensionLockWaiterCount(Relation relation); /* Lock a page (currently only used within indexes) */ extern void LockPage(Relation relation, BlockNumber blkno, LOCKMODE lockmode); |