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Clean up and document the API for XLogOpenRelation and XLogReadBuffer.

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This commit doesn't make much functional change, but it does eliminate some
duplicated code --- for instance, PageIsNew tests are now done inside
XLogReadBuffer rather than by each caller.
The GIST xlog code still needs a lot of love, but I'll worry about that
separately.
This commit is contained in:
Tom Lane
2006-03-29 21:17:39 +00:00
parent 2154e1c11e
commit 6d61cdec07
14 changed files with 562 additions and 397 deletions
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7
src/include/access/xlogutils.h
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@@ -6,7 +6,7 @@
* Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/access/xlogutils.h,v 1.19 2006/03/05 15:58:54 momjian Exp $
* $PostgreSQL: pgsql/src/include/access/xlogutils.h,v 1.20 2006/03/29 21:17:39 tgl Exp $
*/
#ifndef XLOG_UTILS_H
#define XLOG_UTILS_H
@@ -19,8 +19,9 @@ extern void XLogInitRelationCache(void);
extern void XLogCloseRelationCache(void);
extern Relation XLogOpenRelation(RelFileNode rnode);
extern void XLogCloseRelation(RelFileNode rnode);
extern void XLogDropRelation(RelFileNode rnode);
extern void XLogDropDatabase(Oid dbid);
extern Buffer XLogReadBuffer(bool extend, Relation reln, BlockNumber blkno);
extern Buffer XLogReadBuffer(Relation reln, BlockNumber blkno, bool init);
#endif