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Fix an Assert bug(was my fault) pointed out by Tom Lane.

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This commit is contained in:
Hiroshi Inoue
2000-04-10 00:45:42 +00:00
parent 8d04225a19
commit 8a5851880e
1 changed files with 8 additions and 3 deletions
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11
src/backend/storage/lmgr/proc.c
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@ -8,7 +8,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/storage/lmgr/proc.c,v 1.70 2000/02/24 04:36:01 inoue Exp $ * $Header: /cvsroot/pgsql/src/backend/storage/lmgr/proc.c,v 1.71 2000/04/10 00:45:42 inoue Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -47,7 +47,7 @@
* This is so that we can support more backends. (system-wide semaphore * This is so that we can support more backends. (system-wide semaphore
* sets run out pretty fast.) -ay 4/95 * sets run out pretty fast.) -ay 4/95
* *
* $Header: /cvsroot/pgsql/src/backend/storage/lmgr/proc.c,v 1.70 2000/02/24 04:36:01 inoue Exp $ * $Header: /cvsroot/pgsql/src/backend/storage/lmgr/proc.c,v 1.71 2000/04/10 00:45:42 inoue Exp $
*/ */
#include <sys/time.h> #include <sys/time.h>
#include <unistd.h> #include <unistd.h>
@ -493,7 +493,12 @@ void SetWaitingForLock(bool waiting)
lockWaiting = waiting; lockWaiting = waiting;
if (lockWaiting) if (lockWaiting)
{ {
Assert(MyProc->links.next != INVALID_OFFSET); /* The lock was already released ? */
if (MyProc->links.next == INVALID_OFFSET)
{
lockWaiting = false;
return;
}
if (QueryCancel) /* cancel request pending */ if (QueryCancel) /* cancel request pending */
{ {
if (GetOffWaitqueue(MyProc)) if (GetOffWaitqueue(MyProc))