database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-06-30 21:42:05 +03:00
Code Activity

localbuf.c must be able to do blind writes.

Browse Source
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
Download Patch File Download Diff File Expand all files Collapse all files

29
src/backend/storage/buffer/localbuf.c
View File

@ -9,7 +9,7 @@
* *
* *
* IDENTIFICATION * 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); 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 */ /* flush this page */
smgrwrite(DEFAULT_SMGR, bufrel, bufHdr->tag.blockNum, if (bufrel == (Relation) NULL)
(char *) MAKE_PTR(bufHdr->data)); {
LocalBufferFlushCount++; 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 */ LocalBufferFlushCount++;
RelationDecrementReferenceCount(bufrel);
} }
/* /*