diff options
Diffstat (limited to 'src/backend/storage/lmgr/lwlock.c')
| -rw-r--r-- | src/backend/storage/lmgr/lwlock.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/src/backend/storage/lmgr/lwlock.c b/src/backend/storage/lmgr/lwlock.c index efb3ac4a90f..d1410d04a05 100644 --- a/src/backend/storage/lmgr/lwlock.c +++ b/src/backend/storage/lmgr/lwlock.c @@ -15,7 +15,7 @@ * Portions Copyright (c) 1994, Regents of the University of California * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/storage/lmgr/lwlock.c,v 1.19 2003/12/20 17:31:21 momjian Exp $ + * $PostgreSQL: pgsql/src/backend/storage/lmgr/lwlock.c,v 1.20 2004/06/11 16:43:24 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -519,3 +519,23 @@ LWLockReleaseAll(void) LWLockRelease(held_lwlocks[num_held_lwlocks - 1]); } } + + +/* + * LWLockHeldByMe - test whether my process currently holds a lock + * + * This is meant as debug support only. We do not distinguish whether the + * lock is held shared or exclusive. + */ +bool +LWLockHeldByMe(LWLockId lockid) +{ + int i; + + for (i = 0; i < num_held_lwlocks; i++) + { + if (held_lwlocks[i] == lockid) + return true; + } + return false; +} |