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localbuf.c must be able to do blind writes.

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This commit is contained in:
Tom Lane 2002-12-05 22:48:03 +00:00
parent 993b145d7f
commit a2e8e15dd4
1 changed files with 17 additions and 12 deletions
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29
src/backend/storage/buffer/localbuf.c
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@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/storage/buffer/localbuf.c,v 1.46 2002/09/04 20:31:25 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/storage/buffer/localbuf.c,v 1.47 2002/12/05 22:48:03 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -90,19 +90,24 @@ LocalBufferAlloc(Relation reln, BlockNumber blockNum, bool *foundPtr)
{
Relation bufrel = RelationNodeCacheGetRelation(bufHdr->tag.rnode);
/*
* The relcache is not supposed to throw away temp rels, so this
* should always succeed.
*/
Assert(bufrel != NULL);
/* flush this page */
smgrwrite(DEFAULT_SMGR, bufrel, bufHdr->tag.blockNum,
(char *) MAKE_PTR(bufHdr->data));
LocalBufferFlushCount++;
if (bufrel == (Relation) NULL)
{
smgrblindwrt(DEFAULT_SMGR,
bufHdr->tag.rnode,
bufHdr->tag.blockNum,
(char *) MAKE_PTR(bufHdr->data));
}
else
{
smgrwrite(DEFAULT_SMGR, bufrel,
bufHdr->tag.blockNum,
(char *) MAKE_PTR(bufHdr->data));
/* drop refcount incremented by RelationNodeCacheGetRelation */
RelationDecrementReferenceCount(bufrel);
}
/* drop refcount incremented by RelationNodeCacheGetRelation */
RelationDecrementReferenceCount(bufrel);
LocalBufferFlushCount++;
}
/*