From 0ffe17aec61a14d27625899c221862651a502ab7 Mon Sep 17 00:00:00 2001
From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Sun, 28 Nov 1999 01:58:08 +0000
Subject: [PATCH] lmgr.c didn't check for failure return from LockAcquire(). 
 Boo hiss.

---
 src/backend/storage/lmgr/lmgr.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/src/backend/storage/lmgr/lmgr.c b/src/backend/storage/lmgr/lmgr.c
index 86834f5d883..6d07595ad19 100644
--- a/src/backend/storage/lmgr/lmgr.c
+++ b/src/backend/storage/lmgr/lmgr.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/storage/lmgr/lmgr.c,v 1.36 1999/11/17 23:51:21 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/storage/lmgr/lmgr.c,v 1.37 1999/11/28 01:58:08 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -144,7 +144,8 @@ LockRelation(Relation relation, LOCKMODE lockmode)
 	tag.dbId = relation->rd_lockInfo.lockRelId.dbId;
 	tag.objId.blkno = InvalidBlockNumber;
 
-	LockAcquire(LockTableId, &tag, lockmode);
+	if (! LockAcquire(LockTableId, &tag, lockmode))
+		elog(ERROR, "LockRelation: LockAcquire failed");
 
 	/*
 	 * Check to see if the relcache entry has been invalidated
@@ -192,7 +193,8 @@ LockPage(Relation relation, BlockNumber blkno, LOCKMODE lockmode)
 	tag.dbId = relation->rd_lockInfo.lockRelId.dbId;
 	tag.objId.blkno = blkno;
 
-	LockAcquire(LockTableId, &tag, lockmode);
+	if (! LockAcquire(LockTableId, &tag, lockmode))
+		elog(ERROR, "LockPage: LockAcquire failed");
 }
 
 /*
@@ -227,7 +229,8 @@ XactLockTableInsert(TransactionId xid)
 	tag.dbId = InvalidOid;
 	tag.objId.xid = xid;
 
-	LockAcquire(LockTableId, &tag, ExclusiveLock);
+	if (! LockAcquire(LockTableId, &tag, ExclusiveLock))
+		elog(ERROR, "XactLockTableInsert: LockAcquire failed");
 }
 
 void
@@ -259,7 +262,9 @@ XactLockTableWait(TransactionId xid)
 	tag.dbId = InvalidOid;
 	tag.objId.xid = xid;
 
-	LockAcquire(LockTableId, &tag, ShareLock);
+	if (! LockAcquire(LockTableId, &tag, ShareLock))
+		elog(ERROR, "XactLockTableWait: LockAcquire failed");
+
 	LockRelease(LockTableId, &tag, ShareLock);
 
 	/*