diff options
Diffstat (limited to 'src/include/storage/lwlock.h')
| -rw-r--r-- | src/include/storage/lwlock.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/include/storage/lwlock.h b/src/include/storage/lwlock.h index 4653e099b0d..ed9025babd1 100644 --- a/src/include/storage/lwlock.h +++ b/src/include/storage/lwlock.h @@ -177,6 +177,17 @@ extern void LWLockRegisterTranche(int tranche_id, LWLockTranche *tranche); extern void LWLockInitialize(LWLock *lock, int tranche_id); /* + * We reserve a few predefined tranche IDs. A call to LWLockNewTrancheId + * will never return a value less than LWTRANCHE_FIRST_USER_DEFINED. + */ +typedef enum BuiltinTrancheIds +{ + LWTRANCHE_MAIN, + LWTRANCHE_WAL_INSERT, + LWTRANCHE_FIRST_USER_DEFINED +} BuiltinTrancheIds; + +/* * Prior to PostgreSQL 9.4, we used an enum type called LWLockId to refer * to LWLocks. New code should instead use LWLock *. However, for the * convenience of third-party code, we include the following typedef. |