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Fix subtransaction behavior for large objects, temp namespace, files,

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password/group files.  Also allow read-only subtransactions of a read-write
parent, but not vice versa.  These are the reasonably noncontroversial
parts of Alvaro's recent mop-up patch, plus further work on large objects
to minimize use of the TopTransactionResourceOwner.
This commit is contained in:
Tom Lane
2004-07-28 14:23:31 +00:00
parent cc813fc2b8
commit 1bf3d61504
17 changed files with 572 additions and 205 deletions
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16
src/backend/storage/lmgr/lmgr.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/storage/lmgr/lmgr.c,v 1.65 2004/07/27 05:10:58 tgl Exp $
* $PostgreSQL: pgsql/src/backend/storage/lmgr/lmgr.c,v 1.66 2004/07/28 14:23:29 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -137,7 +137,7 @@ LockRelation(Relation relation, LOCKMODE lockmode)
tag.dbId = relation->rd_lockInfo.lockRelId.dbId;
tag.objId.blkno = InvalidBlockNumber;
if (!LockAcquire(LockTableId, &tag, GetCurrentTransactionId(),
if (!LockAcquire(LockTableId, &tag, GetTopTransactionId(),
lockmode, false))
elog(ERROR, "LockAcquire failed");
@@ -171,7 +171,7 @@ ConditionalLockRelation(Relation relation, LOCKMODE lockmode)
tag.dbId = relation->rd_lockInfo.lockRelId.dbId;
tag.objId.blkno = InvalidBlockNumber;
if (!LockAcquire(LockTableId, &tag, GetCurrentTransactionId(),
if (!LockAcquire(LockTableId, &tag, GetTopTransactionId(),
lockmode, true))
return false;
@@ -201,7 +201,7 @@ UnlockRelation(Relation relation, LOCKMODE lockmode)
tag.dbId = relation->rd_lockInfo.lockRelId.dbId;
tag.objId.blkno = InvalidBlockNumber;
LockRelease(LockTableId, &tag, GetCurrentTransactionId(), lockmode);
LockRelease(LockTableId, &tag, GetTopTransactionId(), lockmode);
}
/*
@@ -264,7 +264,7 @@ LockPage(Relation relation, BlockNumber blkno, LOCKMODE lockmode)
tag.dbId = relation->rd_lockInfo.lockRelId.dbId;
tag.objId.blkno = blkno;
if (!LockAcquire(LockTableId, &tag, GetCurrentTransactionId(),
if (!LockAcquire(LockTableId, &tag, GetTopTransactionId(),
lockmode, false))
elog(ERROR, "LockAcquire failed");
}
@@ -285,7 +285,7 @@ ConditionalLockPage(Relation relation, BlockNumber blkno, LOCKMODE lockmode)
tag.dbId = relation->rd_lockInfo.lockRelId.dbId;
tag.objId.blkno = blkno;
return LockAcquire(LockTableId, &tag, GetCurrentTransactionId(),
return LockAcquire(LockTableId, &tag, GetTopTransactionId(),
lockmode, true);
}
@@ -302,7 +302,7 @@ UnlockPage(Relation relation, BlockNumber blkno, LOCKMODE lockmode)
tag.dbId = relation->rd_lockInfo.lockRelId.dbId;
tag.objId.blkno = blkno;
LockRelease(LockTableId, &tag, GetCurrentTransactionId(), lockmode);
LockRelease(LockTableId, &tag, GetTopTransactionId(), lockmode);
}
/*
@@ -343,7 +343,7 @@ void
XactLockTableWait(TransactionId xid)
{
LOCKTAG tag;
TransactionId myxid = GetCurrentTransactionId();
TransactionId myxid = GetTopTransactionId();
Assert(!SubTransXidsHaveCommonAncestor(xid, myxid));