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Lock cleanup

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This commit is contained in:
Bruce Momjian 1998-01-28 06:52:58 +00:00
parent 8a02b22e89
commit 0ff43badd5
1 changed files with 15 additions and 12 deletions
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27
src/backend/storage/lmgr/lock.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/storage/lmgr/lock.c,v 1.24 1998/01/28 02:29:27 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/storage/lmgr/lock.c,v 1.25 1998/01/28 06:52:58 momjian Exp $
*
* NOTES
* Outside modules can create a lock table and acquire/release
@ -1456,13 +1456,14 @@ DeadLockCheck(SHM_QUEUE *lockQueue, LOCK *findlock, bool skip_check)
item.tag.pid = pid;
#endif
if ((result = (XIDLookupEnt *)
hash_search(xidTable, (Pointer) &item, HASH_FIND, &found)) && found)
MyNHolding = result->nHolding;
else
MyNHolding = 0;
}
if (!(result = (XIDLookupEnt *)
hash_search(xidTable, (Pointer) &item, HASH_FIND, &found)) || !found)
{
elog(NOTICE, "LockAcquire: xid table corrupted");
return true;
}
MyNHolding = result->nHolding;
}
if (SHMQueueEmpty(lockQueue))
return false;
@ -1533,12 +1534,14 @@ DeadLockCheck(SHM_QUEUE *lockQueue, LOCK *findlock, bool skip_check)
item.tag.pid = pid;
#endif
if ((result = (XIDLookupEnt *)
hash_search(xidTable, (Pointer) &item, HASH_FIND, &found)) && found)
if (!(result = (XIDLookupEnt *)
hash_search(xidTable, (Pointer) &item, HASH_FIND, &found)) || !found)
{
if (result->nHolding)
return true;
elog(NOTICE, "LockAcquire: xid table corrupted");
return true;
}
if (result->nHolding)
return true;
}
/*
* No sense in looking at the wait queue of the lock we are