Inline some small functions called for every row.
This commit is contained in:
Bruce Momjian
parent
7500a961f1
commit
4cbfeef912
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@ -7,7 +7,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/access/transam/Attic/xid.c,v 1.14 1998/04/07 18:10:01 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/access/transam/Attic/xid.c,v 1.15 1998/04/24 14:41:39 momjian Exp $
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*
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* OLD COMMENTS
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* XXX WARNING
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@ -53,16 +53,6 @@ xidout(TransactionId transactionId)
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}
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/* ----------------------------------------------------------------
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* TransactionIdEquals
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* ----------------------------------------------------------------
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*/
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bool
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TransactionIdEquals(TransactionId id1, TransactionId id2)
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{
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return ((bool) (id1 == id2));
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}
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/* ----------------------------------------------------------------
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* TransactionIdIsLessThan
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* ----------------------------------------------------------------
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@ -14,7 +14,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/executor/execTuples.c,v 1.17 1998/02/26 04:31:14 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/executor/execTuples.c,v 1.18 1998/04/24 14:41:46 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -40,10 +40,10 @@
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* ExecSetNewSlotDescriptor - set a desc and the is-new-flag all at once
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* ExecSlotBuffer - return buffer of tuple in slot
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* ExecSetSlotBuffer - set the buffer for tuple in slot
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* ExecIncrSlotBufferRefcnt - bump the refcnt of the slot buffer
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* ExecIncrSlotBufferRefcnt - bump the refcnt of the slot buffer(Macro)
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*
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* SLOT STATUS PREDICATES
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* TupIsNull - true when slot contains no tuple
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* TupIsNull - true when slot contains no tuple(Macro)
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* ExecSlotDescriptorIsNew - true if we're now storing a different
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* type of tuple in a slot
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*
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@ -566,59 +566,11 @@ ExecSetSlotBuffer(TupleTableSlot *slot, /* slot to change */
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#endif
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/* --------------------------------
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* ExecIncrSlotBufferRefcnt
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*
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* When we pass around buffers in the tuple table, we have to
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* be careful to increment reference counts appropriately.
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* This is used mainly in the mergejoin code.
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* --------------------------------
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*/
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void
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ExecIncrSlotBufferRefcnt(TupleTableSlot *slot) /* slot to bump refcnt */
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{
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/* Buffer b = SlotBuffer((TupleTableSlot*) slot); */
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Buffer b = slot->ttc_buffer;
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if (BufferIsValid(b))
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IncrBufferRefCount(b);
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}
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/* ----------------------------------------------------------------
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* tuple table slot status predicates
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* ----------------------------------------------------------------
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*/
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/* ----------------
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* TupIsNull
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*
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* This is used mainly to detect when there are no more
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* tuples to process.
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* ----------------
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*/
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bool /* return: true if tuple in slot is NULL */
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TupIsNull(TupleTableSlot *slot) /* slot to check */
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{
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HeapTuple tuple; /* contents of slot (returned) */
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/* ----------------
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* if the slot itself is null then we return true
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* ----------------
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*/
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if (slot == NULL)
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return true;
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/* ----------------
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* get information from the slot and return true or
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* false depending on the contents of the slot.
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* ----------------
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*/
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tuple = slot->val;
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return
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(tuple == NULL ? true : false);
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}
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/* --------------------------------
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* ExecSlotDescriptorIsNew
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*
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@ -15,7 +15,7 @@
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* ExecEndTee
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/executor/Attic/nodeTee.c,v 1.16 1998/02/26 04:31:33 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/executor/Attic/nodeTee.c,v 1.17 1998/04/24 14:41:55 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -27,7 +27,7 @@
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#include "utils/palloc.h"
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#include "utils/relcache.h"
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#include "utils/mcxt.h"
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#include "storage/bufmgr.h" /* for IncrBufferRefCount */
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#include "storage/bufmgr.h"
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#include "storage/smgr.h"
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#include "optimizer/internal.h"
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#include "executor/executor.h"
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@ -7,7 +7,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/storage/buffer/bufmgr.c,v 1.36 1998/04/05 21:04:22 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/storage/buffer/bufmgr.c,v 1.37 1998/04/24 14:42:16 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -1262,25 +1262,6 @@ FlushBufferPool(int StableMainMemoryFlag)
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}
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}
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/*
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* BufferIsValid --
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* True iff the refcnt of the local buffer is > 0
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* Note:
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* BufferIsValid(InvalidBuffer) is False.
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* BufferIsValid(UnknownBuffer) is False.
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*/
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bool
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BufferIsValid(Buffer bufnum)
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{
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if (BufferIsLocal(bufnum))
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return (bufnum >= -NLocBuffer && LocalRefCount[-bufnum - 1] > 0);
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if (BAD_BUFFER_ID(bufnum))
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return (false);
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return ((bool) (PrivateRefCount[bufnum - 1] > 0));
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}
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/*
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* BufferGetBlockNumber --
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* Returns the block number associated with a buffer.
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@ -1413,24 +1394,6 @@ RelationGetNumberOfBlocks(Relation relation)
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smgrnblocks(DEFAULT_SMGR, relation));
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}
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/*
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* BufferGetBlock --
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* Returns a reference to a disk page image associated with a buffer.
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*
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* Note:
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* Assumes buffer is valid.
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*/
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Block
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BufferGetBlock(Buffer buffer)
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{
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Assert(BufferIsValid(buffer));
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if (BufferIsLocal(buffer))
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return ((Block) MAKE_PTR(LocalBufferDescriptors[-buffer - 1].data));
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else
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return ((Block) MAKE_PTR(BufferDescriptors[buffer - 1].data));
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}
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/* ---------------------------------------------------------------------
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* ReleaseRelationBuffers
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*
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@ -1679,25 +1642,8 @@ BlowawayRelationBuffers(Relation rdesc, BlockNumber block)
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return (0);
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}
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#undef IncrBufferRefCount
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#undef ReleaseBuffer
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void
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IncrBufferRefCount(Buffer buffer)
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{
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if (BufferIsLocal(buffer))
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{
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Assert(LocalRefCount[-buffer - 1] >= 0);
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LocalRefCount[-buffer - 1]++;
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}
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else
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{
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Assert(!BAD_BUFFER_ID(buffer));
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Assert(PrivateRefCount[buffer - 1] >= 0);
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PrivateRefCount[buffer - 1]++;
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}
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}
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/*
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* ReleaseBuffer -- remove the pin on a buffer without
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* marking it dirty.
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@ -7,7 +7,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/storage/page/bufpage.c,v 1.16 1998/04/06 02:38:17 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/storage/page/bufpage.c,v 1.17 1998/04/24 14:42:27 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -225,27 +225,6 @@ PageRestoreTempPage(Page tempPage, Page oldPage)
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pfree(tempPage);
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}
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/*
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* PageGetMaxOffsetNumber --
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* Returns the maximum offset number used by the given page.
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*
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* NOTE: The offset is invalid if the page is non-empty.
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* Test whether PageIsEmpty before calling this routine
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* and/or using its return value.
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*/
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OffsetNumber
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PageGetMaxOffsetNumber(Page page)
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{
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LocationIndex low;
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OffsetNumber i;
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low = ((PageHeader) page)->pd_lower;
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i = (low - (sizeof(PageHeaderData) - sizeof(ItemIdData)))
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/ sizeof(ItemIdData);
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return (i);
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}
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/* ----------------
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* itemid stuff for PageRepairFragmentation
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* ----------------
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@ -7,7 +7,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/utils/time/tqual.c,v 1.14 1998/02/26 04:38:32 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/utils/time/tqual.c,v 1.15 1998/04/24 14:42:42 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -31,8 +31,8 @@ extern bool PostgresIsInitialized;
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*/
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#ifndef GOODAMI
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static TransactionId HeapSpecialTransactionId = InvalidTransactionId;
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static CommandId HeapSpecialCommandId = FirstCommandId;
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TransactionId HeapSpecialTransactionId = InvalidTransactionId;
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CommandId HeapSpecialCommandId = FirstCommandId;
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void
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setheapoverride(bool on)
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@ -49,54 +49,11 @@ setheapoverride(bool on)
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}
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}
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/* static, but called in debug macro */
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bool
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heapisoverride()
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{
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if (!TransactionIdIsValid(HeapSpecialTransactionId))
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{
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return (false);
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}
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if (!TransactionIdEquals(GetCurrentTransactionId(),
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HeapSpecialTransactionId) ||
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GetCurrentCommandId() != HeapSpecialCommandId)
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{
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HeapSpecialTransactionId = InvalidTransactionId;
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return (false);
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}
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return (true);
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}
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#endif /* !defined(GOODAMI) */
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/*
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* XXX Transaction system override hacks end here
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*/
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static bool HeapTupleSatisfiesItself(HeapTuple tuple);
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static bool HeapTupleSatisfiesNow(HeapTuple tuple);
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/*
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* HeapTupleSatisfiesScope --
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* True iff heap tuple satsifies a time qual.
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*
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* Note:
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* Assumes heap tuple is valid.
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*/
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bool
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HeapTupleSatisfiesVisibility(HeapTuple tuple, bool seeself)
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{
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if (TransactionIdEquals(tuple->t_xmax, AmiTransactionId))
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return (false);
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if (seeself == true || heapisoverride())
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return (HeapTupleSatisfiesItself(tuple));
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else
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return (HeapTupleSatisfiesNow(tuple));
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}
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/*
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* HeapTupleSatisfiesItself --
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* True iff heap tuple is valid for "itself."
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@ -119,7 +76,7 @@ HeapTupleSatisfiesVisibility(HeapTuple tuple, bool seeself)
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* (Xmax != my-transaction && the row was deleted by another transaction
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* Xmax is not committed))) that has not been committed
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*/
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static bool
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bool
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HeapTupleSatisfiesItself(HeapTuple tuple)
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{
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@ -215,7 +172,7 @@ HeapTupleSatisfiesItself(HeapTuple tuple)
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* the serializability guarantees we provide don't extend to xacts
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* that do catalog accesses. this is unfortunate, but not critical.
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*/
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static bool
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bool
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HeapTupleSatisfiesNow(HeapTuple tuple)
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{
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if (AMI_OVERRIDE)
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@ -6,7 +6,7 @@
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*
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* Copyright (c) 1994, Regents of the University of California
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*
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* $Id: xact.h,v 1.12 1998/02/26 04:40:32 momjian Exp $
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* $Id: xact.h,v 1.13 1998/04/24 14:42:55 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -60,6 +60,17 @@ typedef TransactionStateData *TransactionState;
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#define StoreInvalidTransactionId(dest) \
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(*((TransactionId*)dest) = NullTransactionId)
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/* ----------------------------------------------------------------
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* TransactionIdEquals
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* ----------------------------------------------------------------
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*/
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#define TransactionIdEquals(id1, id2) \
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( \
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((bool) ((id1) == (id2))) \
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)
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/* ----------------
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* extern definitions
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* ----------------
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@ -95,7 +106,6 @@ extern TransactionId DisabledTransactionId;
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extern TransactionId xidin(char *representation);
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extern char *xidout(TransactionId transactionId);
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extern bool xideq(TransactionId xid1, TransactionId xid2);
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extern bool TransactionIdEquals(TransactionId id1, TransactionId id2);
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extern bool TransactionIdIsLessThan(TransactionId id1, TransactionId id2);
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extern void TransactionIdAdd(TransactionId *xid, int value);
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@ -6,7 +6,7 @@
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*
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* Copyright (c) 1994, Regents of the University of California
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*
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* $Id: executor.h,v 1.21 1998/02/26 04:41:19 momjian Exp $
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* $Id: executor.h,v 1.22 1998/04/24 14:43:07 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -14,10 +14,48 @@
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#define EXECUTOR_H
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#include <catalog/pg_index.h>
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#include <storage/bufmgr.h>
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#include <access/itup.h>
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#include <stdio.h>
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#include <executor/execdesc.h>
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/* ----------------
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* TupIsNull
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*
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* This is used mainly to detect when there are no more
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* tuples to process.
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* ----------------
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*/
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/* return: true if tuple in slot is NULL, slot is slot to test */
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#define TupIsNull(slot) \
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( \
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((slot) == NULL) ? \
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true \
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: \
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( \
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((slot)->val == NULL) ? \
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true \
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: \
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false \
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) \
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)
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/* --------------------------------
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* ExecIncrSlotBufferRefcnt
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*
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* When we pass around buffers in the tuple table, we have to
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* be careful to increment reference counts appropriately.
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* This is used mainly in the mergejoin code.
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* --------------------------------
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*/
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#define ExecIncrSlotBufferRefcnt(slot) \
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( \
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BufferIsValid((slot)->ttc_buffer) ? \
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IncrBufferRefCount((slot)->ttc_buffer) \
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: (void)NULL \
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)
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/*
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* prototypes from functions in execAmi.c
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*/
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@ -107,8 +145,6 @@ extern TupleDesc
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ExecSetSlotDescriptor(TupleTableSlot *slot,
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TupleDesc tupdesc);
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extern void ExecSetSlotDescriptorIsNew(TupleTableSlot *slot, bool isNew);
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extern void ExecIncrSlotBufferRefcnt(TupleTableSlot *slot);
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extern bool TupIsNull(TupleTableSlot *slot);
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extern void ExecInitResultTupleSlot(EState *estate, CommonState *commonstate);
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extern void
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ExecInitScanTupleSlot(EState *estate,
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|
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@ -6,7 +6,7 @@
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*
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* Copyright (c) 1994, Regents of the University of California
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*
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* $Id: bufmgr.h,v 1.18 1998/02/26 04:43:22 momjian Exp $
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* $Id: bufmgr.h,v 1.19 1998/04/24 14:43:18 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -18,6 +18,7 @@
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#include <storage/ipc.h>
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#include <storage/block.h>
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#include <storage/buf.h>
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#include <storage/buf_internals.h>
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#include <utils/rel.h>
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/*
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@ -72,6 +73,59 @@ extern int ShowPinTrace;
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#define BUFFER_FLUSH_WRITE 0 /* immediate write */
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#define BUFFER_LATE_WRITE 1 /* delayed write: mark as DIRTY */
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/*
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* BufferIsValid --
|
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* True iff the refcnt of the local buffer is > 0
|
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* Note:
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* BufferIsValid(InvalidBuffer) is False.
|
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* BufferIsValid(UnknownBuffer) is False.
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*/
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#define BufferIsValid(bufnum) \
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( \
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BufferIsLocal(bufnum) ? \
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((bufnum) >= -NLocBuffer && LocalRefCount[-(bufnum) - 1] > 0) \
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: \
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( \
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BAD_BUFFER_ID(bufnum) ? \
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false \
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: \
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(PrivateRefCount[(bufnum) - 1] > 0) \
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) \
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)
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#define IncrBufferRefCount(buffer) \
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( \
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BufferIsLocal(buffer) ? \
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( \
|
||||
(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);
|
||||
|
|
|
|||
|
|
@ -6,7 +6,7 @@
|
|||
*
|
||||
* Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $Id: bufpage.h,v 1.17 1998/02/26 04:43:24 momjian Exp $
|
||||
* $Id: bufpage.h,v 1.18 1998/04/24 14:43:23 momjian Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
|
|
@ -280,6 +280,21 @@ typedef enum
|
|||
*/
|
||||
#define BufferGetPage(buffer) ((Page)BufferGetBlock(buffer))
|
||||
|
||||
/*
|
||||
* PageGetMaxOffsetNumber --
|
||||
* Returns the maximum offset number used by the given page.
|
||||
*
|
||||
* NOTE: The offset is invalid if the page is non-empty.
|
||||
* Test whether PageIsEmpty before calling this routine
|
||||
* and/or using its return value.
|
||||
*/
|
||||
#define PageGetMaxOffsetNumber(page) \
|
||||
( \
|
||||
(((PageHeader) (page))->pd_lower - \
|
||||
(sizeof(PageHeaderData) - sizeof(ItemIdData))) \
|
||||
/ sizeof(ItemIdData) \
|
||||
)
|
||||
|
||||
|
||||
/* ----------------------------------------------------------------
|
||||
* extern declarations
|
||||
|
|
@ -292,7 +307,6 @@ PageAddItem(Page page, Item item, Size size,
|
|||
OffsetNumber offsetNumber, ItemIdFlags flags);
|
||||
extern Page PageGetTempPage(Page page, Size specialSize);
|
||||
extern void PageRestoreTempPage(Page tempPage, Page oldPage);
|
||||
extern OffsetNumber PageGetMaxOffsetNumber(Page page);
|
||||
extern void PageRepairFragmentation(Page page);
|
||||
extern Size PageGetFreeSpace(Page page);
|
||||
extern void PageManagerModeSet(PageManagerMode mode);
|
||||
|
|
|
|||
|
|
@ -6,7 +6,7 @@
|
|||
*
|
||||
* Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $Id: tqual.h,v 1.11 1997/11/20 23:24:03 momjian Exp $
|
||||
* $Id: tqual.h,v 1.12 1998/04/24 14:43:33 momjian Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
|
|
@ -15,12 +15,51 @@
|
|||
|
||||
#include <access/htup.h>
|
||||
|
||||
/* As above, plus updates in this command */
|
||||
extern TransactionId HeapSpecialTransactionId;
|
||||
extern CommandId HeapSpecialCommandId;
|
||||
|
||||
/*
|
||||
* HeapTupleSatisfiesVisibility --
|
||||
* True iff heap tuple satsifies a time qual.
|
||||
*
|
||||
* Note:
|
||||
* Assumes heap tuple is valid.
|
||||
*/
|
||||
#define HeapTupleSatisfiesVisibility(tuple, seeself) \
|
||||
( \
|
||||
TransactionIdEquals((tuple)->t_xmax, AmiTransactionId) ? \
|
||||
false \
|
||||
: \
|
||||
( \
|
||||
((seeself) == true || heapisoverride()) ? \
|
||||
HeapTupleSatisfiesItself(tuple) \
|
||||
: \
|
||||
HeapTupleSatisfiesNow(tuple) \
|
||||
) \
|
||||
)
|
||||
|
||||
#define heapisoverride() \
|
||||
( \
|
||||
(!TransactionIdIsValid(HeapSpecialTransactionId)) ? \
|
||||
false \
|
||||
: \
|
||||
( \
|
||||
(!TransactionIdEquals(GetCurrentTransactionId(), \
|
||||
HeapSpecialTransactionId) || \
|
||||
GetCurrentCommandId() != HeapSpecialCommandId) ? \
|
||||
( \
|
||||
HeapSpecialTransactionId = InvalidTransactionId, \
|
||||
false \
|
||||
) \
|
||||
: \
|
||||
true \
|
||||
) \
|
||||
)
|
||||
|
||||
extern bool HeapTupleSatisfiesItself(HeapTuple tuple);
|
||||
extern bool HeapTupleSatisfiesNow(HeapTuple tuple);
|
||||
|
||||
extern void setheapoverride(bool on);
|
||||
extern bool heapisoverride(void);
|
||||
|
||||
extern bool HeapTupleSatisfiesVisibility(HeapTuple tuple, bool seeself);
|
||||
|
||||
|
||||
#endif /* TQUAL_H */
|
||||
|
|
|
|||
Loading…
Reference in New Issue