Introduce the concept of relation forks. An smgr relation can now consist
[PostgreSQL.git] / src / include / access / xlogutils.h
blob29327f5c346f7bf1829df1fdc67cf4ddcac7510c
1 /*
2 * xlogutils.h
4 * PostgreSQL transaction log manager utility routines
6 * Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
7 * Portions Copyright (c) 1994, Regents of the University of California
9 * $PostgreSQL$
11 #ifndef XLOG_UTILS_H
12 #define XLOG_UTILS_H
14 #include "storage/buf.h"
15 #include "storage/relfilenode.h"
16 #include "storage/block.h"
17 #include "utils/relcache.h"
20 extern void XLogCheckInvalidPages(void);
22 extern void XLogDropRelation(RelFileNode rnode, ForkNumber forknum);
23 extern void XLogDropDatabase(Oid dbid);
24 extern void XLogTruncateRelation(RelFileNode rnode, ForkNumber forkNum,
25 BlockNumber nblocks);
27 extern Buffer XLogReadBuffer(RelFileNode rnode, BlockNumber blkno, bool init);
28 extern Buffer XLogReadBufferWithFork(RelFileNode rnode, ForkNumber forknum,
29 BlockNumber blkno, bool init);
31 extern Relation CreateFakeRelcacheEntry(RelFileNode rnode);
32 extern void FreeFakeRelcacheEntry(Relation fakerel);
34 #endif