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Install infrastructure for shared-memory free space map. Doesn't actually

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do anything yet, but it has the necessary connections to initialization
and so forth.  Make some gestures towards allowing number of blocks in
a relation to be BlockNumber, ie, unsigned int, rather than signed int.
(I doubt I got all the places that are sloppy about it, yet.)  On the
way, replace the hardwired NLOCKS_PER_XACT fudge factor with a GUC
variable.
This commit is contained in:
Tom Lane
2001-06-27 23:31:40 +00:00
parent b559382134
commit e0c9301c87
26 changed files with 572 additions and 316 deletions
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15
src/include/storage/smgr.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: smgr.h,v 1.29 2001/05/10 20:38:49 tgl Exp $
* $Id: smgr.h,v 1.30 2001/06/27 23:31:39 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -43,8 +43,9 @@ extern int smgrblindwrt(int16 which, RelFileNode rnode,
extern int smgrblindmarkdirty(int16 which, RelFileNode rnode,
BlockNumber blkno);
extern int smgrmarkdirty(int16 which, Relation reln, BlockNumber blkno);
extern int smgrnblocks(int16 which, Relation reln);
extern int smgrtruncate(int16 which, Relation reln, int nblocks);
extern BlockNumber smgrnblocks(int16 which, Relation reln);
extern BlockNumber smgrtruncate(int16 which, Relation reln,
BlockNumber nblocks);
extern int smgrDoPendingDeletes(bool isCommit);
extern int smgrcommit(void);
extern int smgrabort(void);
@@ -71,8 +72,8 @@ extern int mdmarkdirty(Relation reln, BlockNumber blkno);
extern int mdblindwrt(RelFileNode rnode, BlockNumber blkno,
char *buffer, bool dofsync);
extern int mdblindmarkdirty(RelFileNode rnode, BlockNumber blkno);
extern int mdnblocks(Relation reln);
extern int mdtruncate(Relation reln, int nblocks);
extern BlockNumber mdnblocks(Relation reln);
extern BlockNumber mdtruncate(Relation reln, BlockNumber nblocks);
extern int mdcommit(void);
extern int mdabort(void);
extern int mdsync(void);
@@ -95,8 +96,8 @@ extern int mmblindwrt(char *dbname, char *relname, Oid dbid, Oid relid,
extern int mmmarkdirty(Relation reln, BlockNumber blkno);
extern int mmblindmarkdirty(char *dbname, char *relname, Oid dbid, Oid relid,
BlockNumber blkno);
extern int mmnblocks(Relation reln);
extern int mmtruncate(Relation reln, int nblocks);
extern BlockNumber mmnblocks(Relation reln);
extern BlockNumber mmtruncate(Relation reln, BlockNumber nblocks);
extern int mmcommit(void);
extern int mmabort(void);