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Inline some small functions called for every row.

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This commit is contained in:
Bruce Momjian
1998-04-24 14:43:33 +00:00
parent 7500a961f1
commit 4cbfeef912
11 changed files with 179 additions and 205 deletions
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59
src/include/storage/bufmgr.h
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@@ -6,7 +6,7 @@
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: bufmgr.h,v 1.18 1998/02/26 04:43:22 momjian Exp $
* $Id: bufmgr.h,v 1.19 1998/04/24 14:43:18 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -18,6 +18,7 @@
#include <storage/ipc.h>
#include <storage/block.h>
#include <storage/buf.h>
#include <storage/buf_internals.h>
#include <utils/rel.h>
/*
@@ -72,6 +73,59 @@ extern int ShowPinTrace;
#define BUFFER_FLUSH_WRITE 0 /* immediate write */
#define BUFFER_LATE_WRITE 1 /* delayed write: mark as DIRTY */
/*
* BufferIsValid --
* True iff the refcnt of the local buffer is > 0
* Note:
* BufferIsValid(InvalidBuffer) is False.
* BufferIsValid(UnknownBuffer) is False.
*/
#define BufferIsValid(bufnum) \
( \
BufferIsLocal(bufnum) ? \
((bufnum) >= -NLocBuffer && LocalRefCount[-(bufnum) - 1] > 0) \
: \
( \
BAD_BUFFER_ID(bufnum) ? \
false \
: \
(PrivateRefCount[(bufnum) - 1] > 0) \
) \
)
#define IncrBufferRefCount(buffer) \
( \
BufferIsLocal(buffer) ? \
( \
(void)AssertMacro(LocalRefCount[-(buffer) - 1] >= 0), \
(void)LocalRefCount[-(buffer) - 1]++ \
) \
: \
( \
(void)AssertMacro(!BAD_BUFFER_ID(buffer)), \
(void)AssertMacro(PrivateRefCount[(buffer) - 1] >= 0), \
(void)PrivateRefCount[(buffer) - 1]++ \
) \
)
/*
* BufferGetBlock --
* Returns a reference to a disk page image associated with a buffer.
*
* Note:
* Assumes buffer is valid.
*/
#define BufferGetBlock(buffer) \
( \
(void)AssertMacro(BufferIsValid(buffer)), \
\
BufferIsLocal(buffer) ? \
((Block) MAKE_PTR(LocalBufferDescriptors[-(buffer) - 1].data)) \
: \
((Block) MAKE_PTR(BufferDescriptors[(buffer) - 1].data)) \
)
/*
* prototypes for functions in bufmgr.c
*/
@@ -91,17 +145,14 @@ extern void ResetBufferUsage(void);
extern void ResetBufferPool(void);
extern int BufferPoolCheckLeak(void);
extern void FlushBufferPool(int StableMainMemoryFlag);
extern bool BufferIsValid(Buffer bufnum);
extern BlockNumber BufferGetBlockNumber(Buffer buffer);
extern Relation BufferGetRelation(Buffer buffer);
extern BlockNumber RelationGetNumberOfBlocks(Relation relation);
extern Block BufferGetBlock(Buffer buffer);
extern void ReleaseRelationBuffers(Relation rdesc);
extern void DropBuffers(Oid dbid);
extern void PrintBufferDescs(void);
extern void PrintPinnedBufs(void);
extern int BufferShmemSize(void);
extern void IncrBufferRefCount(Buffer buffer);
extern int ReleaseBuffer(Buffer buffer);
extern void BufferRefCountReset(int *refcountsave);