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Postgres FD Implementation
Commit a7fcadd1 authored by Vadim B. Mikheev's avatar Vadim B. Mikheev
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WAL

parent 7c177a49
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Showing with 942 additions and 457 deletions
src/backend/access/gist/gist.c
View file @ a7fcadd1
......@@ -6,7 +6,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/gist/gist.c,v 1.62 2000/07/14 22:17:28 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/access/gist/gist.c,v 1.63 2000/10/21 15:43:09 vadim Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -23,6 +23,12 @@
#include "miscadmin.h"
#include "utils/syscache.h"
#ifdef XLOG
#include "access/xlogutils.h"
void gist_redo(XLogRecPtr lsn, XLogRecord *record);
void gist_undo(XLogRecPtr lsn, XLogRecord *record);
void gist_desc(char *buf, uint8 xl_info, char* rec);
#endif
/* non-export function prototypes */
static InsertIndexResult gistdoinsert(Relation r, IndexTuple itup,
......@@ -1344,3 +1350,22 @@ int_range_out(INTRANGE *r)
}
#endif /* defined GISTDEBUG */
#ifdef XLOG
void
gist_redo(XLogRecPtr lsn, XLogRecord *record)
{
elog(STOP, "gist_redo: unimplemented");
}
void
gist_undo(XLogRecPtr lsn, XLogRecord *record)
{
elog(STOP, "gist_undo: unimplemented");
}
void
gist_desc(char *buf, uint8 xl_info, char* rec)
{
}
#endif
src/backend/access/hash/hash.c
View file @ a7fcadd1
......@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/hash/hash.c,v 1.42 2000/07/14 22:17:28 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/access/hash/hash.c,v 1.43 2000/10/21 15:43:11 vadim Exp $
*
* NOTES
* This file contains only the public interface routines.
......@@ -25,9 +25,16 @@
#include "executor/executor.h"
#include "miscadmin.h"
bool BuildingHash = false;
#ifdef XLOG
#include "access/xlogutils.h"
void hash_redo(XLogRecPtr lsn, XLogRecord *record);
void hash_undo(XLogRecPtr lsn, XLogRecord *record);
void hash_desc(char *buf, uint8 xl_info, char* rec);
#endif
/*
* hashbuild() -- build a new hash index.
*
......@@ -478,3 +485,22 @@ hashdelete(PG_FUNCTION_ARGS)
PG_RETURN_VOID();
}
#ifdef XLOG
void
hash_redo(XLogRecPtr lsn, XLogRecord *record)
{
elog(STOP, "hash_redo: unimplemented");
}
void
hash_undo(XLogRecPtr lsn, XLogRecord *record)
{
elog(STOP, "hash_undo: unimplemented");
}
void
hash_desc(char *buf, uint8 xl_info, char* rec)
{
}
#endif
src/backend/access/heap/heapam.c
View file @ a7fcadd1
......@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/heap/heapam.c,v 1.89 2000/10/20 11:01:02 vadim Exp $
* $Header: /cvsroot/pgsql/src/backend/access/heap/heapam.c,v 1.90 2000/10/21 15:43:14 vadim Exp $
*
*
* INTERFACE ROUTINES
......@@ -86,12 +86,14 @@
#include "utils/inval.h"
#include "utils/relcache.h"
#ifdef XLOG /* comments are in heap_update */
#ifdef XLOG
#include "access/xlogutils.h"
void heap_redo(XLogRecPtr lsn, XLogRecord *record);
void heap_undo(XLogRecPtr lsn, XLogRecord *record);
void heap_desc(char *buf, uint8 xl_info, char* rec);
/* comments are in heap_update */
static xl_heaptid _locked_tuple_;
static void _heap_unlock_tuple(void *data);
......@@ -2480,4 +2482,53 @@ HeapPageCleanup(Buffer buffer)
PageRepairFragmentation(page);
}
static void
out_target(char *buf, xl_heaptid *target)
{
sprintf(buf + strlen(buf), "node %u/%u; cid %u; tid %u/%u",
target->node.tblNode, target->node.relNode,
target->cid,
ItemPointerGetBlockNumber(&(target->tid)),
ItemPointerGetOffsetNumber(&(target->tid)));
}
void
heap_desc(char *buf, uint8 xl_info, char* rec)
{
uint8 info = xl_info & ~XLR_INFO_MASK;
if (info == XLOG_HEAP_INSERT)
{
xl_heap_insert *xlrec = (xl_heap_insert*) rec;
strcat(buf, "insert: ");
out_target(buf, &(xlrec->target));
}
else if (info == XLOG_HEAP_DELETE)
{
xl_heap_delete *xlrec = (xl_heap_delete*) rec;
strcat(buf, "delete: ");
out_target(buf, &(xlrec->target));
}
else if (info == XLOG_HEAP_UPDATE)
{
xl_heap_update *xlrec = (xl_heap_update*) rec;
strcat(buf, "update: ");
out_target(buf, &(xlrec->target));
sprintf(buf + strlen(buf), "; new %u/%u",
ItemPointerGetBlockNumber(&(xlrec->newtid)),
ItemPointerGetOffsetNumber(&(xlrec->newtid)));
}
else if (info == XLOG_HEAP_MOVE)
{
xl_heap_move *xlrec = (xl_heap_move*) rec;
strcat(buf, "move: ");
out_target(buf, &(xlrec->target));
sprintf(buf + strlen(buf), "; new %u/%u",
ItemPointerGetBlockNumber(&(xlrec->newtid)),
ItemPointerGetOffsetNumber(&(xlrec->newtid)));
}
else
strcat(buf, "UNKNOWN");
}
#endif /* XLOG */
src/backend/access/nbtree/nbtinsert.c
View file @ a7fcadd1
......@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/nbtree/nbtinsert.c,v 1.66 2000/10/13 12:05:20 vadim Exp $
* $Header: /cvsroot/pgsql/src/backend/access/nbtree/nbtinsert.c,v 1.67 2000/10/21 15:43:18 vadim Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -527,12 +527,13 @@ _bt_insertonpg(Relation rel,
{
char xlbuf[sizeof(xl_btree_insert) +
sizeof(CommandId) + sizeof(RelFileNode)];
xl_btree_insert *xlrec = xlbuf;
xl_btree_insert *xlrec = (xl_btree_insert*)xlbuf;
int hsize = SizeOfBtreeInsert;
BTItemData truncitem;
BTItem xlitem = btitem;
Size xlsize = IndexTupleDSize(btitem->bti_itup) +
(sizeof(BTItemData) - sizeof(IndexTupleData));
XLogRecPtr recptr;
xlrec->target.node = rel->rd_node;
ItemPointerSet(&(xlrec->target.tid), BufferGetBlockNumber(buf), newitemoff);
......@@ -555,7 +556,7 @@ _bt_insertonpg(Relation rel,
xlsize = sizeof(BTItemData);
}
XLogRecPtr recptr = XLogInsert(RM_BTREE_ID, XLOG_BTREE_INSERT,
recptr = XLogInsert(RM_BTREE_ID, XLOG_BTREE_INSERT,
xlbuf, hsize, (char*) xlitem, xlsize);
PageSetLSN(page, recptr);
......@@ -785,17 +786,19 @@ _bt_split(Relation rel, Buffer buf, OffsetNumber firstright,
{
char xlbuf[sizeof(xl_btree_split) +
sizeof(CommandId) + sizeof(RelFileNode) + BLCKSZ];
xl_btree_split *xlrec = xlbuf;
xl_btree_split *xlrec = (xl_btree_split*) xlbuf;
int hsize = SizeOfBtreeSplit;
int flag = (newitemonleft) ?
XLOG_BTREE_SPLEFT : XLOG_BTREE_SPLIT;
BlockNumber blkno;
XLogRecPtr recptr;
xlrec->target.node = rel->rd_node;
ItemPointerSet(&(xlrec->target.tid), itup_blkno, itup_off);
ItemPointerSet(&(xlrec->target.tid), *itup_blkno, *itup_off);
if (P_ISLEAF(lopaque))
{
CommandId cid = GetCurrentCommandId();
memcpy(xlbuf + hsize, &(char*)cid, sizeof(CommandId));
memcpy(xlbuf + hsize, &cid, sizeof(CommandId));
hsize += sizeof(CommandId);
memcpy(xlbuf + hsize, &(_xlheapRel->rd_node), sizeof(RelFileNode));
hsize += sizeof(RelFileNode);
......@@ -814,7 +817,7 @@ _bt_split(Relation rel, Buffer buf, OffsetNumber firstright,
* Actually, seems that in non-leaf splits newitem shouldn't
* go to first data key position on left page.
*/
if (! P_ISLEAF(lopaque) && itup_off == P_FIRSTDATAKEY(lopaque))
if (! P_ISLEAF(lopaque) && *itup_off == P_FIRSTDATAKEY(lopaque))
{
BTItemData truncitem = *newitem;
truncitem.bti_itup.t_info = sizeof(BTItemData);
......@@ -828,20 +831,24 @@ _bt_split(Relation rel, Buffer buf, OffsetNumber firstright,
memcpy(xlbuf + hsize, (char*) newitem, itemsz);
hsize += itemsz;
}
xlrec->otherblk = BufferGetBlockNumber(rbuf);
blkno = BufferGetBlockNumber(rbuf);
BlockIdSet(&(xlrec->otherblk), blkno);
}
else
xlrec->otherblk = BufferGetBlockNumber(buf);
{
blkno = BufferGetBlockNumber(buf);
BlockIdSet(&(xlrec->otherblk), blkno);
}
xlrec->rightblk = ropaque->btpo_next;
BlockIdSet(&(xlrec->rightblk), ropaque->btpo_next);
/*
* Dirrect access to page is not good but faster - we should
* implement some new func in page API.
*/
XLogRecPtr recptr = XLogInsert(RM_BTREE_ID, flag, xlbuf,
hsize, (char*)rightpage + (PageHeader) rightpage)->pd_upper,
((PageHeader) rightpage)->pd_special - ((PageHeader) rightpage)->upper);
recptr = XLogInsert(RM_BTREE_ID, flag, xlbuf,
hsize, (char*)rightpage + ((PageHeader) rightpage)->pd_upper,
((PageHeader) rightpage)->pd_special - ((PageHeader) rightpage)->pd_upper);
PageSetLSN(leftpage, recptr);
PageSetSUI(leftpage, ThisStartUpID);
......@@ -1070,7 +1077,7 @@ static Buffer
_bt_getstackbuf(Relation rel, BTStack stack)
{
BlockNumber blkno;
Buffer buf, newbuf;
Buffer buf;
OffsetNumber start,
offnum,
maxoff;
......@@ -1236,6 +1243,7 @@ _bt_newroot(Relation rel, Buffer lbuf, Buffer rbuf)
xl_btree_newroot xlrec;
Page metapg = BufferGetPage(metabuf);
BTMetaPageData *metad = BTPageGetMeta(metapg);
XLogRecPtr recptr;
xlrec.node = rel->rd_node;
BlockIdSet(&(xlrec.rootblk), rootblknum);
......@@ -1244,10 +1252,10 @@ _bt_newroot(Relation rel, Buffer lbuf, Buffer rbuf)
* Dirrect access to page is not good but faster - we should
* implement some new func in page API.
*/
XLogRecPtr recptr = XLogInsert(RM_BTREE_ID, XLOG_BTREE_NEWROOT,
&xlrec, SizeOfBtreeNewroot,
(char*)rootpage + (PageHeader) rootpage)->pd_upper,
((PageHeader) rootpage)->pd_special - ((PageHeader) rootpage)->upper);
recptr = XLogInsert(RM_BTREE_ID, XLOG_BTREE_NEWROOT,
(char*)&xlrec, SizeOfBtreeNewroot,
(char*)rootpage + ((PageHeader) rootpage)->pd_upper,
((PageHeader) rootpage)->pd_special - ((PageHeader) rootpage)->pd_upper);
metad->btm_root = rootblknum;
(metad->btm_level)++;
......
src/backend/access/nbtree/nbtpage.c
View file @ a7fcadd1
......@@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/nbtree/nbtpage.c,v 1.39 2000/10/13 02:03:00 vadim Exp $
* $Header: /cvsroot/pgsql/src/backend/access/nbtree/nbtpage.c,v 1.40 2000/10/21 15:43:18 vadim Exp $
*
* NOTES
* Postgres btree pages look like ordinary relation pages. The opaque
......@@ -172,12 +172,13 @@ _bt_getroot(Relation rel, int access)
/* XLOG stuff */
{
xl_btree_newroot xlrec;
XLogRecPtr recptr;
xlrec.node = rel->rd_node;
BlockIdSet(&(xlrec.rootblk), rootblkno);
XLogRecPtr recptr = XLogInsert(RM_BTREE_ID, XLOG_BTREE_NEWROOT,
&xlrec, SizeOfBtreeNewroot, NULL, 0);
recptr = XLogInsert(RM_BTREE_ID, XLOG_BTREE_NEWROOT,
(char*)&xlrec, SizeOfBtreeNewroot, NULL, 0);
PageSetLSN(rootpage, recptr);
PageSetSUI(rootpage, ThisStartUpID);
......@@ -404,10 +405,12 @@ _bt_pagedel(Relation rel, ItemPointer tid)
/* XLOG stuff */
{
xl_btree_delete xlrec;
XLogRecPtr recptr;
xlrec.target.node = rel->rd_node;
xlrec.target.tid = *tid;
XLogRecPtr recptr = XLogInsert(RM_BTREE_ID, XLOG_BTREE_DELETE,
(char*) xlrec, SizeOfBtreeDelete, NULL, 0);
recptr = XLogInsert(RM_BTREE_ID, XLOG_BTREE_DELETE,
(char*) &xlrec, SizeOfBtreeDelete, NULL, 0);
PageSetLSN(page, recptr);
PageSetSUI(page, ThisStartUpID);
......
src/backend/access/nbtree/nbtree.c
View file @ a7fcadd1
......@@ -12,7 +12,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/nbtree/nbtree.c,v 1.66 2000/10/20 11:01:03 vadim Exp $
* $Header: /cvsroot/pgsql/src/backend/access/nbtree/nbtree.c,v 1.67 2000/10/21 15:43:18 vadim Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -32,6 +32,14 @@ bool BuildingBtree = false; /* see comment in btbuild() */
bool FastBuild = true; /* use sort/build instead of insertion
* build */
#ifdef XLOG
#include "access/xlogutils.h"
void btree_redo(XLogRecPtr lsn, XLogRecord *record);
void btree_undo(XLogRecPtr lsn, XLogRecord *record);
void btree_desc(char *buf, uint8 xl_info, char* rec);
#endif
static void _bt_restscan(IndexScanDesc scan);
/*
......@@ -732,193 +740,88 @@ _bt_restscan(IndexScanDesc scan)
}
#ifdef XLOG
void btree_redo(XLogRecPtr lsn, XLogRecord *record)
{
uint8 info = record->xl_info & ~XLR_INFO_MASK;
if (info == XLOG_BTREE_DELETE)
btree_xlog_delete(true, lsn, record);
else if (info == XLOG_BTREE_INSERT)
btree_xlog_insert(true, lsn, record);
else if (info == XLOG_BTREE_SPLIT)
btree_xlog_split(true, false, lsn, record); /* new item on the right */
else if (info == XLOG_BTREE_SPLEFT)
btree_xlog_split(true, true, lsn, record); /* new item on the left */
else if (info == XLOG_BTREE_NEWROOT)
btree_xlog_newroot(true, lsn, record);
else
elog(STOP, "btree_redo: unknown op code %u", info);
}
void btree_undo(XLogRecPtr lsn, XLogRecord *record)
static bool
_bt_cleanup_page(Page page, RelFileNode hnode)
{
uint8 info = record->xl_info & ~XLR_INFO_MASK;
OffsetNumber maxoff = PageGetMaxOffsetNumber(page);
BTPageOpaque pageop = (BTPageOpaque) PageGetSpecialPointer(page);
OffsetNumber offno;
ItemId lp;
BTItem item;
bool result = false;
if (info == XLOG_BTREE_DELETE)
btree_xlog_delete(false, lsn, record);
else if (info == XLOG_BTREE_INSERT)
btree_xlog_insert(false, lsn, record);
else if (info == XLOG_BTREE_SPLIT)
btree_xlog_split(false, false, lsn, record);/* new item on the right */
else if (info == XLOG_BTREE_SPLEFT)
btree_xlog_split(false, true, lsn, record); /* new item on the left */
else if (info == XLOG_BTREE_NEWROOT)
btree_xlog_newroot(false, lsn, record);
for (offno = P_FIRSTDATAKEY(pageop); offno <= maxoff; )
{
lp = PageGetItemId(page, offno);
item = (BTItem) PageGetItem(page, lp);
if (XLogIsValidTuple(hnode, &(item->bti_itup.t_tid)))
offno = OffsetNumberNext(offno);
else
elog(STOP, "btree_undo: unknown op code %u", info);
}
static void btree_xlog_delete(bool redo, XLogRecPtr lsn, XLogRecord *record)
{
xl_btree_delete *xlrec;
Relation *reln;
Buffer buffer;
Page page;
if (!redo)
return;
xlrec = (xl_btree_delete*) XLogRecGetData(record);
reln = XLogOpenRelation(redo, RM_BTREE_ID, xlrec->target.node);
if (!RelationIsValid(reln))
return;
buffer = XLogReadBuffer(false, reln,
ItemPointerGetBlockNumber(&(xlrec->target.tid)));
if (!BufferIsValid(buffer))
elog(STOP, "btree_delete_redo: block unfound");
page = (Page) BufferGetPage(buffer);
if (PageIsNew((PageHeader) page))
elog(STOP, "btree_delete_redo: uninitialized page");
PageIndexTupleDelete(page, ItemPointerGetOffsetNumber(&(xlrec->target.tid)));
{
PageIndexTupleDelete(page, offno);
maxoff = PageGetMaxOffsetNumber(page);
result = true;
}
}
return;
return(result);
}
static void btree_xlog_insert(bool redo, XLogRecPtr lsn, XLogRecord *record)
static bool
_bt_add_item(Page page, OffsetNumber offno,
char* item, Size size, RelFileNode hnode)
{
xl_btree_insert *xlrec;
Relation *reln;
Buffer buffer;
Page page;
BTPageOpaque pageop;
xlrec = (xl_btree_insert*) XLogRecGetData(record);
reln = XLogOpenRelation(redo, RM_BTREE_ID, xlrec->target.node);
if (!RelationIsValid(reln))
return;
buffer = XLogReadBuffer((redo) ? true : false, reln,
ItemPointerGetBlockNumber(&(xlrec->target.tid)));
if (!BufferIsValid(buffer))
return;
page = (Page) BufferGetPage(buffer);
if (PageIsNew((PageHeader) page))
elog(STOP, "btree_insert_%s: uninitialized page",
(redo) ? "redo" : "undo");
pageop = (BTPageOpaque) PageGetSpecialPointer(page);
BTPageOpaque pageop = (BTPageOpaque) PageGetSpecialPointer(page);
if (redo)
{
if (XLByteLE(lsn, PageGetLSN(page)))
UnlockAndReleaseBuffer(buffer);
else
if (offno > PageGetMaxOffsetNumber(page) + 1)
{
Size hsize = SizeOfBtreeInsert;
RelFileNode hnode;
if (P_ISLEAF(pageop))
if (! (pageop->btpo_flags & BTP_REORDER))
{
hsize += (sizeof(CommandId) + sizeof(RelFileNode));
memcpy(&hnode, (char*)xlrec + SizeOfBtreeInsert +
sizeof(CommandId), sizeof(RelFileNode));
}
if (! _bt_add_item(page,
ItemPointerGetOffsetNumber(&(xlrec->target.tid)),
(char*)xlrec + hsize,
record->xl_len - hsize,
hnode))
elog(STOP, "btree_insert_redo: failed to add item");
PageSetLSN(page, lsn);
PageSetSUI(page, ThisStartUpID);
UnlockAndWriteBuffer(buffer);
elog(NOTICE, "btree_add_item: BTP_REORDER flag was expected");
pageop->btpo_flags |= BTP_REORDER;
}
offno = PageGetMaxOffsetNumber(page) + 1;
}
else
{
BTItemData btdata;
if (XLByteLT(PageGetLSN(page), lsn))
elog(STOP, "btree_insert_undo: bad page LSN");
if (! P_ISLEAF(pageop))
if (PageAddItem(page, (Item) item, size, offno,
LP_USED) == InvalidOffsetNumber)
{
UnlockAndReleaseBuffer(buffer);
return;
}
memcpy(&btdata, (char*)xlrec + SizeOfBtreeInsert +
sizeof(CommandId) + sizeof(RelFileNode), sizeof(BTItemData));
_bt_del_item(reln, buffer, &btdata, true, lsn, record);
/* ops, not enough space - try to deleted dead tuples */
bool result;
if (! P_ISLEAF(pageop))
return(false);
result = _bt_cleanup_page(page, hnode);
if (!result || PageAddItem(page, (Item) item, size, offno,
LP_USED) == InvalidOffsetNumber)
return(false);
}
return;
return(true);
}
/*
* Remove from left sibling items belonging to right sibling
* and change P_HIKEY
*/
static void
btree_xlog_split(bool redo, bool onleft, XLogRecPtr lsn, XLogRecord *record)
_bt_fix_left_page(Page page, XLogRecord *record, bool onleft)
{
xl_btree_split *xlrec;
Relation *reln;
BlockNumber blkno;
BlockNumber parent;
Buffer buffer;
Page page;
BTPageOpaque pageop;
char *op = (redo) ? "redo" : "undo";
bool isleaf;
xlrec = (xl_btree_split*) XLogRecGetData(record);
reln = XLogOpenRelation(redo, RM_BTREE_ID, xlrec->target.node);
if (!RelationIsValid(reln))
return;
/* Left (original) sibling */
blkno = (onleft) ? ItemPointerGetBlockNumber(&(xlrec->target.tid)) :
BlockIdGetBlockNumber(xlrec->otherblk);
buffer = XLogReadBuffer(false, reln, blkno);
if (!BufferIsValid(buffer))
elog(STOP, "btree_split_%s: lost left sibling", op);
page = (Page) BufferGetPage(buffer);
if (PageIsNew((PageHeader) page))
elog(STOP, "btree_split_%s: uninitialized left sibling", op);
pageop = (BTPageOpaque) PageGetSpecialPointer(page);
isleaf = P_ISLEAF(pageop);
parent = pageop->btpo_parent;
if (redo)
{
if (XLByteLE(lsn, PageGetLSN(page)))
UnlockAndReleaseBuffer(buffer);
else
{
/* Delete items related to new right sibling */
_bt_fix_left_page(page, record, onleft);
if (onleft)
{
BTItemData btdata;
char *xlrec = (char*) XLogRecGetData(record);
BTPageOpaque pageop = (BTPageOpaque) PageGetSpecialPointer(page);
Size hsize = SizeOfBtreeSplit;
Size itemsz;
RelFileNode hnode;
BTItemData btdata;
OffsetNumber maxoff = PageGetMaxOffsetNumber(page);
OffsetNumber offno;
char *item;
Size itemsz;
char *previtem = NULL;
char *lhikey = NULL;
Size lhisize = 0;
pageop->btpo_next = BlockIdGetBlockNumber(xlrec->otherblk);
if (isleaf)
if (pageop->btpo_flags & BTP_LEAF)
{
hsize += (sizeof(CommandId) + sizeof(RelFileNode));
memcpy(&hnode, (char*)xlrec + SizeOfBtreeSplit +
......@@ -926,277 +829,69 @@ btree_xlog_split(bool redo, bool onleft, XLogRecPtr lsn, XLogRecord *record)
}
else
{
memcpy(&btdata, (char*)xlrec + hsize, sizeof(BTItemData));
itemsz = IndexTupleDSize(btdata.bti_itup) +
lhikey = (char*)xlrec + hsize;
memcpy(&btdata, lhikey, sizeof(BTItemData));
lhisize = IndexTupleDSize(btdata.bti_itup) +
(sizeof(BTItemData) - sizeof(IndexTupleData));
hsize += itemsz;
hsize += lhisize;
}
if (! P_RIGHTMOST(pageop))
PageIndexTupleDelete(page, P_HIKEY);
if (onleft) /* skip target item */
{
memcpy(&btdata, (char*)xlrec + hsize, sizeof(BTItemData));
itemsz = IndexTupleDSize(btdata.bti_itup) +
(sizeof(BTItemData) - sizeof(IndexTupleData));
if (! _bt_add_item(page,
ItemPointerGetOffsetNumber(&(xlrec->target.tid)),
(char*)xlrec + hsize,
itemsz,
hnode))
elog(STOP, "btree_split_redo: failed to add item");
hsize += itemsz;
}
else
pageop->btpo_next = ItemPointerGetBlockNumber(&(xlrec->target.tid));
PageSetLSN(page, lsn);
PageSetSUI(page, ThisStartUpID);
UnlockAndWriteBuffer(buffer);
}
}
else /* undo */
for (item = (char*)xlrec + hsize; ; )
{
if (XLByteLT(PageGetLSN(page), lsn))
elog(STOP, "btree_split_undo: bad left sibling LSN");
if (! isleaf || ! onleft)
UnlockAndReleaseBuffer(buffer);
else
memcpy(&btdata, item, sizeof(BTItemData));
for (offno = P_FIRSTDATAKEY(pageop);
offno <= maxoff;
offno = OffsetNumberNext(offno))
{
BTItemData btdata;
ItemId lp = PageGetItemId(page, offno);
BTItem btitem = (BTItem) PageGetItem(page, lp);
memcpy(&btdata, (char*)xlrec + SizeOfBtreeSplit +
sizeof(CommandId) + sizeof(RelFileNode), sizeof(BTItemData));
_bt_del_item(reln, buffer, &btdata, false, lsn, record);
}
}
/* Right (new) sibling */
blkno = (onleft) ? BlockIdGetBlockNumber(xlrec->otherblk) :
ItemPointerGetBlockNumber(&(xlrec->target.tid));
buffer = XLogReadBuffer((redo) ? true : false, reln, blkno);
if (!BufferIsValid(buffer))
elog(STOP, "btree_split_%s: lost right sibling", op);
page = (Page) BufferGetPage(buffer);
if (PageIsNew((PageHeader) page))
{
if (!redo)
elog(STOP, "btree_split_undo: uninitialized right sibling");
PageInit(page, BufferGetPageSize(buffer), 0);
}
if (redo)
{
if (XLByteLE(lsn, PageGetLSN(page)))
UnlockAndReleaseBuffer(buffer);
else
{
Size hsize = SizeOfBtreeSplit;
BTItemData btdata;
Size itemsz;
_bt_pageinit(page, BufferGetPageSize(buffer));
pageop = (BTPageOpaque) PageGetSpecialPointer(page);
if (isleaf)
{
pageop->btpo_flags |= BTP_LEAF;
hsize += (sizeof(CommandId) + sizeof(RelFileNode));
}
else
if (BTItemSame(&btdata, btitem))
{
memcpy(&btdata, (char*)xlrec + hsize, sizeof(BTItemData));
itemsz = IndexTupleDSize(btdata.bti_itup) +
(sizeof(BTItemData) - sizeof(IndexTupleData));
hsize += itemsz;
PageIndexTupleDelete(page, offno);
break;
}
if (onleft) /* skip target item */
{
memcpy(&btdata, (char*)xlrec + hsize, sizeof(BTItemData));
itemsz = IndexTupleDSize(btdata.bti_itup) +
(sizeof(BTItemData) - sizeof(IndexTupleData));
hsize += itemsz;
}
for (char* item = (char*)xlrec + hsize;
item < (char*)record + record->xl_len; )
{
memcpy(&btdata, item, sizeof(BTItemData));
itemsz = IndexTupleDSize(btdata.bti_itup) +
(sizeof(BTItemData) - sizeof(IndexTupleData));
itemsz = MAXALIGN(itemsz);
if (PageAddItem(page, (Item) item, itemsz, FirstOffsetNumber,
LP_USED) == InvalidOffsetNumber)
elog(STOP, "btree_split_redo: can't add item to right sibling");
item += itemsz;
}
pageop->btpo_prev = (onleft) ? ItemPointerGetBlockNumber(&(xlrec->target.tid)) :
BlockIdGetBlockNumber(xlrec->otherblk);
pageop->btpo_next = BlockIdGetBlockNumber(xlrec->rightblk);
pageop->btpo_parent = parent;
PageSetLSN(page, lsn);
PageSetSUI(page, ThisStartUpID);
UnlockAndWriteBuffer(buffer);
}
}
else /* undo */
{
if (XLByteLT(PageGetLSN(page), lsn))
elog(STOP, "btree_split_undo: bad right sibling LSN");
if (! isleaf || onleft)
UnlockAndReleaseBuffer(buffer);
else
{
char tbuf[BLCKSZ];
int cnt;
char *item;
Size itemsz;
item = (char*)xlrec + SizeOfBtreeSplit +
sizeof(CommandId) + sizeof(RelFileNode);
for (cnt = 0; item < (char*)record + record->xl_len; )
if (item + itemsz < (char*)record + record->xl_len)
{
BTItem btitem = (BTItem)
(tbuf + cnt * (MAXALIGN(sizeof(BTItemData))));
memcpy(btitem, item, sizeof(BTItemData));
itemsz = IndexTupleDSize(btitem->bti_itup) +
(sizeof(BTItemData) - sizeof(IndexTupleData));
itemsz = MAXALIGN(itemsz);
previtem = item;
item += itemsz;
cnt++;
}
cnt -= ItemPointerGetOffsetNumber(&(xlrec->target.tid));
if (cnt < 0)
elog(STOP, "btree_split_undo: target item unfound in right sibling");
item = tbuf + cnt * (MAXALIGN(sizeof(BTItemData)));
_bt_del_item(reln, buffer, (BTItem)item, false, lsn, record);
}
}
/* Right (next) page */
blkno = BlockIdGetBlockNumber(xlrec->rightblk);
buffer = XLogReadBuffer(false, reln, blkno);
if (!BufferIsValid(buffer))
elog(STOP, "btree_split_%s: lost next right page", op);
page = (Page) BufferGetPage(buffer);
if (PageIsNew((PageHeader) page))
elog(STOP, "btree_split_%s: uninitialized next right page", op);
if (redo)
{
if (XLByteLE(lsn, PageGetLSN(page)))
UnlockAndReleaseBuffer(buffer);
else
{
pageop = (BTPageOpaque) PageGetSpecialPointer(page);
pageop->btpo_prev = (onleft) ? BlockIdGetBlockNumber(xlrec->otherblk) :
ItemPointerGetBlockNumber(&(xlrec->target.tid));
PageSetLSN(page, lsn);
PageSetSUI(page, ThisStartUpID);
UnlockAndWriteBuffer(buffer);
}
}
else /* undo */
{
if (XLByteLT(PageGetLSN(page), lsn))
elog(STOP, "btree_split_undo: bad next right page LSN");
UnlockAndReleaseBuffer(buffer);
break;
}
}
static void btree_xlog_newroot(bool redo, XLogRecPtr lsn, XLogRecord *record)
{
xl_btree_newroot *xlrec;
Relation *reln;
Buffer buffer;
Page page;
Buffer metabuf;
Page metapg;
if (!redo)
return;
xlrec = (xl_btree_newroot*) XLogRecGetData(record);
reln = XLogOpenRelation(redo, RM_BTREE_ID, xlrec->node);
if (!RelationIsValid(reln))
return;
buffer = XLogReadBuffer(true, reln, BlockIdGetBlockNumber(&(xlrec->rootblk)));
if (!BufferIsValid(buffer))
elog(STOP, "btree_newroot_redo: no root page");
metabuf = XLogReadBuffer(false, reln, BTREE_METAPAGE);
if (!BufferIsValid(buffer))
elog(STOP, "btree_newroot_redo: no metapage");
page = (Page) BufferGetPage(buffer);
if (PageIsNew((PageHeader) page) || XLByteLT(PageGetLSN(page), lsn))
{
_bt_pageinit(page, BufferGetPageSize(buffer));
pageop = (BTPageOpaque) PageGetSpecialPointer(page);
pageop->btpo_flags |= BTP_ROOT;
pageop->btpo_prev = pageop->btpo_next = P_NONE;
pageop->btpo_parent = BTREE_METAPAGE;
if (record->xl_len == SizeOfBtreeNewroot) /* no childs */
pageop->btpo_flags |= BTP_LEAF;
else
{
BTItemData btdata;
Size itemsz;
for (char* item = (char*)xlrec + SizeOfBtreeNewroot;
item < (char*)record + record->xl_len; )
/* time to insert hi-key */
if (pageop->btpo_flags & BTP_LEAF)
{
memcpy(&btdata, item, sizeof(BTItemData));
itemsz = IndexTupleDSize(btdata.bti_itup) +
lhikey = (P_RIGHTMOST(pageop)) ? item : previtem;
memcpy(&btdata, lhikey, sizeof(BTItemData));
lhisize = IndexTupleDSize(btdata.bti_itup) +
(sizeof(BTItemData) - sizeof(IndexTupleData));
itemsz = MAXALIGN(itemsz);
if (PageAddItem(page, (Item) item, itemsz, FirstOffsetNumber,
LP_USED) == InvalidOffsetNumber)
elog(STOP, "btree_newroot_redo: can't add item");
item += itemsz;
}
}
PageSetLSN(page, lsn);
PageSetSUI(page, ThisStartUpID);
UnlockAndWriteBuffer(buffer);
}
else
UnlockAndReleaseBuffer(buffer);
metapg = BufferGetPage(metabuf);
if (PageIsNew((PageHeader) metapg))
{
BTMetaPageData md;
_bt_pageinit(metapg, BufferGetPageSize(metabuf));
md.btm_magic = BTREE_MAGIC;
md.btm_version = BTREE_VERSION;
md.btm_root = P_NONE;
md.btm_level = 0;
memcpy((char *) BTPageGetMeta(pg), (char *) &md, sizeof(md));
}
if (XLByteLT(PageGetLSN(metapg), lsn))
{
BTMetaPageData *metad = BTPageGetMeta(metapg);
metad->btm_root = BlockIdGetBlockNumber(&(xlrec->rootblk));
(metad->btm_level)++;
PageSetLSN(metapg, lsn);
PageSetSUI(metapg, ThisStartUpID);
UnlockAndWriteBuffer(metabuf);
}
else
UnlockAndReleaseBuffer(metabuf);
if (! _bt_add_item(page,
P_HIKEY,
lhikey,
lhisize,
hnode))
elog(STOP, "btree_split_redo: failed to add hi key to left sibling");
return;
}
......@@ -1298,86 +993,159 @@ _bt_del_item(Relation reln, Buffer buffer, BTItem btitem, bool insert,
return;
}
static bool
_bt_add_item(Page page, OffsetNumber offno,
char* item, Size size, RelFileNode hnode)
static void
btree_xlog_delete(bool redo, XLogRecPtr lsn, XLogRecord *record)
{
BTPageOpaque pageop = (BTPageOpaque) PageGetSpecialPointer(page);
if (offno > PageGetMaxOffsetNumber(page) + 1)
{
if (! (pageop->btpo_flags & BTP_REORDER))
{
elog(NOTICE, "btree_add_item: BTP_REORDER flag was expected");
pageop->btpo_flags |= BTP_REORDER;
}
offno = PageGetMaxOffsetNumber(page) + 1;
}
if (PageAddItem(page, (Item) item, size, offno,
LP_USED) == InvalidOffsetNumber)
{
/* ops, not enough space - try to deleted dead tuples */
bool result;
xl_btree_delete *xlrec;
Relation reln;
Buffer buffer;
Page page;
if (! P_ISLEAF(pageop))
return(false);
result = _bt_cleanup_page(page, hnode);
if (!result || PageAddItem(page, (Item) item, size, offno,
LP_USED) == InvalidOffsetNumber)
return(false);
}
if (!redo)
return;
return(true);
xlrec = (xl_btree_delete*) XLogRecGetData(record);
reln = XLogOpenRelation(redo, RM_BTREE_ID, xlrec->target.node);
if (!RelationIsValid(reln))
return;
buffer = XLogReadBuffer(false, reln,
ItemPointerGetBlockNumber(&(xlrec->target.tid)));
if (!BufferIsValid(buffer))
elog(STOP, "btree_delete_redo: block unfound");
page = (Page) BufferGetPage(buffer);
if (PageIsNew((PageHeader) page))
elog(STOP, "btree_delete_redo: uninitialized page");
PageIndexTupleDelete(page, ItemPointerGetOffsetNumber(&(xlrec->target.tid)));
return;
}
static bool
_bt_cleanup_page(Page page, RelFileNode hnode)
static void
btree_xlog_insert(bool redo, XLogRecPtr lsn, XLogRecord *record)
{
OffsetNumber maxoff = PageGetMaxOffsetNumber(page);
OffsetNumber offno;
ItemId lp;
BTItem item;
bool result = false;
xl_btree_insert *xlrec;
Relation reln;
Buffer buffer;
Page page;
BTPageOpaque pageop;
for (offno = P_FIRSTDATAKEY(pageop); offno <= maxoff; )
xlrec = (xl_btree_insert*) XLogRecGetData(record);
reln = XLogOpenRelation(redo, RM_BTREE_ID, xlrec->target.node);
if (!RelationIsValid(reln))
return;
buffer = XLogReadBuffer((redo) ? true : false, reln,
ItemPointerGetBlockNumber(&(xlrec->target.tid)));
if (!BufferIsValid(buffer))
return;
page = (Page) BufferGetPage(buffer);
if (PageIsNew((PageHeader) page))
elog(STOP, "btree_insert_%s: uninitialized page",
(redo) ? "redo" : "undo");
pageop = (BTPageOpaque) PageGetSpecialPointer(page);
if (redo)
{
lp = PageGetItemId(page, offno);
item = (BTItem) PageGetItem(page, lp);
if (XLogIsValidTuple(hnode, &(item->bti_itup.t_tid))
offno = OffsetNumberNext(offno);
if (XLByteLE(lsn, PageGetLSN(page)))
UnlockAndReleaseBuffer(buffer);
else
{
PageIndexTupleDelete(page, offno);
maxoff = PageGetMaxOffsetNumber(page);
result = true;
Size hsize = SizeOfBtreeInsert;
RelFileNode hnode;
if (P_ISLEAF(pageop))
{
hsize += (sizeof(CommandId) + sizeof(RelFileNode));
memcpy(&hnode, (char*)xlrec + SizeOfBtreeInsert +
sizeof(CommandId), sizeof(RelFileNode));
}
if (! _bt_add_item(page,
ItemPointerGetOffsetNumber(&(xlrec->target.tid)),
(char*)xlrec + hsize,
record->xl_len - hsize,
hnode))
elog(STOP, "btree_insert_redo: failed to add item");
PageSetLSN(page, lsn);
PageSetSUI(page, ThisStartUpID);
UnlockAndWriteBuffer(buffer);
}
}
else
{
BTItemData btdata;
if (XLByteLT(PageGetLSN(page), lsn))
elog(STOP, "btree_insert_undo: bad page LSN");
if (! P_ISLEAF(pageop))
{
UnlockAndReleaseBuffer(buffer);
return;
}
return(result);
memcpy(&btdata, (char*)xlrec + SizeOfBtreeInsert +
sizeof(CommandId) + sizeof(RelFileNode), sizeof(BTItemData));
_bt_del_item(reln, buffer, &btdata, true, lsn, record);
}
return;
}
/*
* Remove from left sibling items belonging to right sibling
* and change P_HIKEY
*/
static void
_bt_fix_left_page(Page page, XLogRecord *record, bool onleft)
btree_xlog_split(bool redo, bool onleft, XLogRecPtr lsn, XLogRecord *record)
{
char *xlrec = (char*) XLogRecGetData(record);
BTPageOpaque pageop = (BTPageOpaque) PageGetSpecialPointer(page);
Size hsize = SizeOfBtreeSplit;
RelFileNode hnode;
xl_btree_split *xlrec;
Relation reln;
BlockNumber blkno;
BlockNumber parent;
Buffer buffer;
Page page;
BTPageOpaque pageop;
char *op = (redo) ? "redo" : "undo";
bool isleaf;
xlrec = (xl_btree_split*) XLogRecGetData(record);
reln = XLogOpenRelation(redo, RM_BTREE_ID, xlrec->target.node);
if (!RelationIsValid(reln))
return;
/* Left (original) sibling */
blkno = (onleft) ? ItemPointerGetBlockNumber(&(xlrec->target.tid)) :
BlockIdGetBlockNumber(&(xlrec->otherblk));
buffer = XLogReadBuffer(false, reln, blkno);
if (!BufferIsValid(buffer))
elog(STOP, "btree_split_%s: lost left sibling", op);
page = (Page) BufferGetPage(buffer);
if (PageIsNew((PageHeader) page))
elog(STOP, "btree_split_%s: uninitialized left sibling", op);
pageop = (BTPageOpaque) PageGetSpecialPointer(page);
isleaf = P_ISLEAF(pageop);
parent = pageop->btpo_parent;
if (redo)
{
if (XLByteLE(lsn, PageGetLSN(page)))
UnlockAndReleaseBuffer(buffer);
else
{
/* Delete items related to new right sibling */
_bt_fix_left_page(page, record, onleft);
if (onleft)
{
BTItemData btdata;
OffsetNumber maxoff = PageGetMaxOffsetNumber(page);
OffsetNumber offno;
char *item;
Size hsize = SizeOfBtreeSplit;
Size itemsz;
char *previtem = NULL;
char *lhikey = NULL;
Size lhisize = 0;
RelFileNode hnode;
if (pageop->btpo_flags & BTP_LEAF)
pageop->btpo_next = BlockIdGetBlockNumber(&(xlrec->otherblk));
if (isleaf)
{
hsize += (sizeof(CommandId) + sizeof(RelFileNode));
memcpy(&hnode, (char*)xlrec + SizeOfBtreeSplit +
......@@ -1385,16 +1153,89 @@ _bt_fix_left_page(Page page, XLogRecord *record, bool onleft)
}
else
{
lhikey = (char*)xlrec + hsize;
memcpy(&btdata, lhikey, sizeof(BTItemData));
lhisize = IndexTupleDSize(btdata.bti_itup) +
memcpy(&btdata, (char*)xlrec + hsize, sizeof(BTItemData));
itemsz = IndexTupleDSize(btdata.bti_itup) +
(sizeof(BTItemData) - sizeof(IndexTupleData));
hsize += lhisize;
hsize += itemsz;
}
if (! P_RIGHTMOST(pageop))
PageIndexTupleDelete(page, P_HIKEY);
memcpy(&btdata, (char*)xlrec + hsize, sizeof(BTItemData));
itemsz = IndexTupleDSize(btdata.bti_itup) +
(sizeof(BTItemData) - sizeof(IndexTupleData));
if (! _bt_add_item(page,
ItemPointerGetOffsetNumber(&(xlrec->target.tid)),
(char*)xlrec + hsize,
itemsz,
hnode))
elog(STOP, "btree_split_redo: failed to add item");
}
else
pageop->btpo_next = ItemPointerGetBlockNumber(&(xlrec->target.tid));
PageSetLSN(page, lsn);
PageSetSUI(page, ThisStartUpID);
UnlockAndWriteBuffer(buffer);
}
}
else /* undo */
{
if (XLByteLT(PageGetLSN(page), lsn))
elog(STOP, "btree_split_undo: bad left sibling LSN");
if (! isleaf || ! onleft)
UnlockAndReleaseBuffer(buffer);
else
{
BTItemData btdata;
memcpy(&btdata, (char*)xlrec + SizeOfBtreeSplit +
sizeof(CommandId) + sizeof(RelFileNode), sizeof(BTItemData));
_bt_del_item(reln, buffer, &btdata, false, lsn, record);
}
}
/* Right (new) sibling */
blkno = (onleft) ? BlockIdGetBlockNumber(&(xlrec->otherblk)) :
ItemPointerGetBlockNumber(&(xlrec->target.tid));
buffer = XLogReadBuffer((redo) ? true : false, reln, blkno);
if (!BufferIsValid(buffer))
elog(STOP, "btree_split_%s: lost right sibling", op);
page = (Page) BufferGetPage(buffer);
if (PageIsNew((PageHeader) page))
{
if (!redo)
elog(STOP, "btree_split_undo: uninitialized right sibling");
PageInit(page, BufferGetPageSize(buffer), 0);
}
if (redo)
{
if (XLByteLE(lsn, PageGetLSN(page)))
UnlockAndReleaseBuffer(buffer);
else
{
Size hsize = SizeOfBtreeSplit;
BTItemData btdata;
Size itemsz;
char *item;
_bt_pageinit(page, BufferGetPageSize(buffer));
pageop = (BTPageOpaque) PageGetSpecialPointer(page);
if (isleaf)
{
pageop->btpo_flags |= BTP_LEAF;
hsize += (sizeof(CommandId) + sizeof(RelFileNode));
}
else
{
memcpy(&btdata, (char*)xlrec + hsize, sizeof(BTItemData));
itemsz = IndexTupleDSize(btdata.bti_itup) +
(sizeof(BTItemData) - sizeof(IndexTupleData));
hsize += itemsz;
}
if (onleft) /* skip target item */
{
memcpy(&btdata, (char*)xlrec + hsize, sizeof(BTItemData));
......@@ -1403,53 +1244,279 @@ _bt_fix_left_page(Page page, XLogRecord *record, bool onleft)
hsize += itemsz;
}
for (item = (char*)xlrec + hsize; ; )
for (item = (char*)xlrec + hsize;
item < (char*)record + record->xl_len; )
{
memcpy(&btdata, item, sizeof(BTItemData));
for (offno = P_FIRSTDATAKEY(pageop);
offno <= maxoff;
offno = OffsetNumberNext(offno))
itemsz = IndexTupleDSize(btdata.bti_itup) +
(sizeof(BTItemData) - sizeof(IndexTupleData));
itemsz = MAXALIGN(itemsz);
if (PageAddItem(page, (Item) item, itemsz, FirstOffsetNumber,
LP_USED) == InvalidOffsetNumber)
elog(STOP, "btree_split_redo: can't add item to right sibling");
item += itemsz;
}
pageop->btpo_prev = (onleft) ? ItemPointerGetBlockNumber(&(xlrec->target.tid)) :
BlockIdGetBlockNumber(&(xlrec->otherblk));
pageop->btpo_next = BlockIdGetBlockNumber(&(xlrec->rightblk));
pageop->btpo_parent = parent;
PageSetLSN(page, lsn);
PageSetSUI(page, ThisStartUpID);
UnlockAndWriteBuffer(buffer);
}
}
else /* undo */
{
ItemId lp = PageGetItemId(page, offno);
BTItem btitem = (BTItem) PageGetItem(page, lp);
if (XLByteLT(PageGetLSN(page), lsn))
elog(STOP, "btree_split_undo: bad right sibling LSN");
if (BTItemSame(&btdata, btitem))
if (! isleaf || onleft)
UnlockAndReleaseBuffer(buffer);
else
{
PageIndexTupleDelete(page, offno);
break;
char tbuf[BLCKSZ];
int cnt;
char *item;
Size itemsz;
item = (char*)xlrec + SizeOfBtreeSplit +
sizeof(CommandId) + sizeof(RelFileNode);
for (cnt = 0; item < (char*)record + record->xl_len; )
{
BTItem btitem = (BTItem)
(tbuf + cnt * (MAXALIGN(sizeof(BTItemData))));
memcpy(btitem, item, sizeof(BTItemData));
itemsz = IndexTupleDSize(btitem->bti_itup) +
(sizeof(BTItemData) - sizeof(IndexTupleData));
itemsz = MAXALIGN(itemsz);
item += itemsz;
cnt++;
}
cnt -= ItemPointerGetOffsetNumber(&(xlrec->target.tid));
if (cnt < 0)
elog(STOP, "btree_split_undo: target item unfound in right sibling");
item = tbuf + cnt * (MAXALIGN(sizeof(BTItemData)));
_bt_del_item(reln, buffer, (BTItem)item, false, lsn, record);
}
}
/* Right (next) page */
blkno = BlockIdGetBlockNumber(&(xlrec->rightblk));
buffer = XLogReadBuffer(false, reln, blkno);
if (!BufferIsValid(buffer))
elog(STOP, "btree_split_%s: lost next right page", op);
page = (Page) BufferGetPage(buffer);
if (PageIsNew((PageHeader) page))
elog(STOP, "btree_split_%s: uninitialized next right page", op);
if (redo)
{
if (XLByteLE(lsn, PageGetLSN(page)))
UnlockAndReleaseBuffer(buffer);
else
{
pageop = (BTPageOpaque) PageGetSpecialPointer(page);
pageop->btpo_prev = (onleft) ?
BlockIdGetBlockNumber(&(xlrec->otherblk)) :
ItemPointerGetBlockNumber(&(xlrec->target.tid));
PageSetLSN(page, lsn);
PageSetSUI(page, ThisStartUpID);
UnlockAndWriteBuffer(buffer);
}
}
else /* undo */
{
if (XLByteLT(PageGetLSN(page), lsn))
elog(STOP, "btree_split_undo: bad next right page LSN");
UnlockAndReleaseBuffer(buffer);
}
}
static void
btree_xlog_newroot(bool redo, XLogRecPtr lsn, XLogRecord *record)
{
xl_btree_newroot *xlrec;
Relation reln;
Buffer buffer;
Page page;
Buffer metabuf;
Page metapg;
if (!redo)
return;
xlrec = (xl_btree_newroot*) XLogRecGetData(record);
reln = XLogOpenRelation(redo, RM_BTREE_ID, xlrec->node);
if (!RelationIsValid(reln))
return;
buffer = XLogReadBuffer(true, reln, BlockIdGetBlockNumber(&(xlrec->rootblk)));
if (!BufferIsValid(buffer))
elog(STOP, "btree_newroot_redo: no root page");
metabuf = XLogReadBuffer(false, reln, BTREE_METAPAGE);
if (!BufferIsValid(buffer))
elog(STOP, "btree_newroot_redo: no metapage");
page = (Page) BufferGetPage(buffer);
if (PageIsNew((PageHeader) page) || XLByteLT(PageGetLSN(page), lsn))
{
BTPageOpaque pageop;
_bt_pageinit(page, BufferGetPageSize(buffer));
pageop = (BTPageOpaque) PageGetSpecialPointer(page);
pageop->btpo_flags |= BTP_ROOT;
pageop->btpo_prev = pageop->btpo_next = P_NONE;
pageop->btpo_parent = BTREE_METAPAGE;
if (record->xl_len == SizeOfBtreeNewroot) /* no childs */
pageop->btpo_flags |= BTP_LEAF;
else
{
BTItemData btdata;
Size itemsz;
char *item;
for (item = (char*)xlrec + SizeOfBtreeNewroot;
item < (char*)record + record->xl_len; )
{
memcpy(&btdata, item, sizeof(BTItemData));
itemsz = IndexTupleDSize(btdata.bti_itup) +
(sizeof(BTItemData) - sizeof(IndexTupleData));
itemsz = MAXALIGN(itemsz);
if (item + itemsz < (char*)record + record->xl_len)
{
previtem = item;
if (PageAddItem(page, (Item) item, itemsz, FirstOffsetNumber,
LP_USED) == InvalidOffsetNumber)
elog(STOP, "btree_newroot_redo: can't add item");
item += itemsz;
}
else
break;
}
/* time to insert hi-key */
if (pageop->btpo_flags & BTP_LEAF)
PageSetLSN(page, lsn);
PageSetSUI(page, ThisStartUpID);
UnlockAndWriteBuffer(buffer);
}
else
UnlockAndReleaseBuffer(buffer);
metapg = BufferGetPage(metabuf);
if (PageIsNew((PageHeader) metapg))
{
lhikey = (P_RIGHTMOST(pageop)) ? item : previtem;
memcpy(&btdata, lhikey, sizeof(BTItemData));
lhisize = IndexTupleDSize(btdata.bti_itup) +
(sizeof(BTItemData) - sizeof(IndexTupleData));
BTMetaPageData md;
_bt_pageinit(metapg, BufferGetPageSize(metabuf));
md.btm_magic = BTREE_MAGIC;
md.btm_version = BTREE_VERSION;
md.btm_root = P_NONE;
md.btm_level = 0;
memcpy((char *) BTPageGetMeta(metapg), (char *) &md, sizeof(md));
}
if (! _bt_add_item(page,
P_HIKEY,
lhikey,
lhisize,
&hnode))
elog(STOP, "btree_split_redo: failed to add hi key to left sibling");
if (XLByteLT(PageGetLSN(metapg), lsn))
{
BTMetaPageData *metad = BTPageGetMeta(metapg);
metad->btm_root = BlockIdGetBlockNumber(&(xlrec->rootblk));
(metad->btm_level)++;
PageSetLSN(metapg, lsn);
PageSetSUI(metapg, ThisStartUpID);
UnlockAndWriteBuffer(metabuf);
}
else
UnlockAndReleaseBuffer(metabuf);
return;
}
void
btree_redo(XLogRecPtr lsn, XLogRecord *record)
{
uint8 info = record->xl_info & ~XLR_INFO_MASK;
if (info == XLOG_BTREE_DELETE)
btree_xlog_delete(true, lsn, record);
else if (info == XLOG_BTREE_INSERT)
btree_xlog_insert(true, lsn, record);
else if (info == XLOG_BTREE_SPLIT)
btree_xlog_split(true, false, lsn, record); /* new item on the right */
else if (info == XLOG_BTREE_SPLEFT)
btree_xlog_split(true, true, lsn, record); /* new item on the left */
else if (info == XLOG_BTREE_NEWROOT)
btree_xlog_newroot(true, lsn, record);
else
elog(STOP, "btree_redo: unknown op code %u", info);
}
void
btree_undo(XLogRecPtr lsn, XLogRecord *record)
{
uint8 info = record->xl_info & ~XLR_INFO_MASK;
if (info == XLOG_BTREE_DELETE)
btree_xlog_delete(false, lsn, record);
else if (info == XLOG_BTREE_INSERT)
btree_xlog_insert(false, lsn, record);
else if (info == XLOG_BTREE_SPLIT)
btree_xlog_split(false, false, lsn, record);/* new item on the right */
else if (info == XLOG_BTREE_SPLEFT)
btree_xlog_split(false, true, lsn, record); /* new item on the left */
else if (info == XLOG_BTREE_NEWROOT)
btree_xlog_newroot(false, lsn, record);
else
elog(STOP, "btree_undo: unknown op code %u", info);
}
static void
out_target(char *buf, xl_btreetid *target)
{
sprintf(buf + strlen(buf), "node %u/%u; tid %u/%u",
target->node.tblNode, target->node.relNode,
ItemPointerGetBlockNumber(&(target->tid)),
ItemPointerGetOffsetNumber(&(target->tid)));
}
void
btree_desc(char *buf, uint8 xl_info, char* rec)
{
uint8 info = xl_info & ~XLR_INFO_MASK;
if (info == XLOG_BTREE_INSERT)
{
xl_btree_insert *xlrec = (xl_btree_insert*) rec;
strcat(buf, "insert: ");
out_target(buf, &(xlrec->target));
}
else if (info == XLOG_BTREE_DELETE)
{
xl_btree_delete *xlrec = (xl_btree_delete*) rec;
strcat(buf, "delete: ");
out_target(buf, &(xlrec->target));
}
else if (info == XLOG_BTREE_SPLIT || info == XLOG_BTREE_SPLEFT)
{
xl_btree_split *xlrec = (xl_btree_split*) rec;
sprintf(buf + strlen(buf), "split(%s): ",
(info == XLOG_BTREE_SPLIT) ? "right" : "left");
out_target(buf, &(xlrec->target));
sprintf(buf + strlen(buf), "; oth %u; rgh %u",
BlockIdGetBlockNumber(&xlrec->otherblk),
BlockIdGetBlockNumber(&xlrec->rightblk));
}
else if (info == XLOG_BTREE_NEWROOT)
{
xl_btree_newroot *xlrec = (xl_btree_newroot*) rec;
sprintf(buf + strlen(buf), "root: node %u/%u; blk %u",
xlrec->node.tblNode, xlrec->node.relNode,
BlockIdGetBlockNumber(&xlrec->rootblk));
}
else
strcat(buf, "UNKNOWN");
}
#endif
src/backend/access/rtree/rtree.c
View file @ a7fcadd1
......@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/rtree/Attic/rtree.c,v 1.53 2000/07/30 20:43:40 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/access/rtree/Attic/rtree.c,v 1.54 2000/10/21 15:43:20 vadim Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -22,6 +22,12 @@
#include "executor/executor.h"
#include "miscadmin.h"
#ifdef XLOG
#include "access/xlogutils.h"
void rtree_redo(XLogRecPtr lsn, XLogRecord *record);
void rtree_undo(XLogRecPtr lsn, XLogRecord *record);
void rtree_desc(char *buf, uint8 xl_info, char* rec);
#endif
typedef struct SPLITVEC
{
......@@ -1066,3 +1072,22 @@ _rtdump(Relation r)
}
#endif /* defined RTDEBUG */
#ifdef XLOG
void
rtree_redo(XLogRecPtr lsn, XLogRecord *record)
{
elog(STOP, "rtree_redo: unimplemented");
}
void
rtree_undo(XLogRecPtr lsn, XLogRecord *record)
{
elog(STOP, "rtree_undo: unimplemented");
}
void
rtree_desc(char *buf, uint8 xl_info, char* rec)
{
}
#endif
src/backend/access/transam/rmgr.c
View file @ a7fcadd1
#include "postgres.h"
#include "access/rmgr.h"
#include "access/xlog.h"
RmgrData *RmgrTable = NULL;
#ifdef XLOG
extern void xlog_redo(XLogRecPtr lsn, XLogRecord *rptr);
extern void xlog_undo(XLogRecPtr lsn, XLogRecord *rptr);
extern void xlog_desc(char *buf, uint8 xl_info, char* rec);
extern void xact_redo(XLogRecPtr lsn, XLogRecord *rptr);
extern void xact_undo(XLogRecPtr lsn, XLogRecord *rptr);
extern void xact_desc(char *buf, uint8 xl_info, char* rec);
extern void smgr_redo(XLogRecPtr lsn, XLogRecord *rptr);
extern void smgr_undo(XLogRecPtr lsn, XLogRecord *rptr);
extern void smgr_desc(char *buf, uint8 xl_info, char* rec);
extern void heap_redo(XLogRecPtr lsn, XLogRecord *rptr);
extern void heap_undo(XLogRecPtr lsn, XLogRecord *rptr);
extern void heap_desc(char *buf, uint8 xl_info, char* rec);
extern void btree_redo(XLogRecPtr lsn, XLogRecord *rptr);
extern void btree_undo(XLogRecPtr lsn, XLogRecord *rptr);
extern void btree_desc(char *buf, uint8 xl_info, char* rec);
extern void hash_redo(XLogRecPtr lsn, XLogRecord *rptr);
extern void hash_undo(XLogRecPtr lsn, XLogRecord *rptr);
extern void hash_desc(char *buf, uint8 xl_info, char* rec);
extern void rtree_redo(XLogRecPtr lsn, XLogRecord *rptr);
extern void rtree_undo(XLogRecPtr lsn, XLogRecord *rptr);
extern void rtree_desc(char *buf, uint8 xl_info, char* rec);
extern void gist_redo(XLogRecPtr lsn, XLogRecord *rptr);
extern void gist_undo(XLogRecPtr lsn, XLogRecord *rptr);
extern void gist_desc(char *buf, uint8 xl_info, char* rec);
RmgrData RmgrTable[] = {
{"XLOG", xlog_redo, xlog_undo, xlog_desc},
{"Transaction", xact_redo, xact_undo, xact_desc},
{"Storage", smgr_redo, smgr_undo, smgr_desc},
{"Reserved 3", NULL, NULL, NULL},
{"Reserved 4", NULL, NULL, NULL},
{"Reserved 5", NULL, NULL, NULL},
{"Reserved 6", NULL, NULL, NULL},
{"Reserved 7", NULL, NULL, NULL},
{"Reserved 8", NULL, NULL, NULL},
{"Reserved 9", NULL, NULL, NULL},
{"Heap", heap_redo, heap_undo, heap_desc},
{"Btree", btree_redo, btree_undo, btree_desc},
{"Hash", hash_redo, hash_undo, hash_desc},
{"Rtree", rtree_redo, rtree_undo, rtree_desc},
{"Gist", gist_redo, gist_undo, gist_desc}
};
#else
RmgrData RmgrTable[] = {};
#endif
src/backend/access/transam/xact.c
View file @ a7fcadd1
......@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/transam/xact.c,v 1.73 2000/10/20 11:01:04 vadim Exp $
* $Header: /cvsroot/pgsql/src/backend/access/transam/xact.c,v 1.74 2000/10/21 15:43:22 vadim Exp $
*
* NOTES
* Transaction aborts can now occur two ways:
......@@ -224,6 +224,7 @@ int CommitDelay;
void xact_redo(XLogRecPtr lsn, XLogRecord *record);
void xact_undo(XLogRecPtr lsn, XLogRecord *record);
void xact_desc(char *buf, uint8 xl_info, char* rec);
static void (*_RollbackFunc)(void*) = NULL;
static void *_RollbackData = NULL;
......@@ -692,6 +693,7 @@ RecordTransactionCommit()
TransactionIdCommit(xid);
#ifdef XLOG
if (MyLastRecPtr.xlogid != 0 || MyLastRecPtr.xrecoff != 0)
{
xl_xact_commit xlrec;
struct timeval delay;
......@@ -711,6 +713,9 @@ RecordTransactionCommit()
delay.tv_sec = 0;
delay.tv_usec = CommitDelay;
(void) select(0, NULL, NULL, NULL, &delay);
XLogFlush(recptr);
MyLastRecPtr.xlogid = 0;
MyLastRecPtr.xrecoff = 0;
}
#endif
/*
......@@ -823,7 +828,7 @@ RecordTransactionAbort()
TransactionIdAbort(xid);
#ifdef XLOG
if (SharedBufferChanged)
if (MyLastRecPtr.xlogid != 0 || MyLastRecPtr.xrecoff != 0)
{
xl_xact_abort xlrec;
XLogRecPtr recptr;
......@@ -1176,6 +1181,8 @@ AbortTransaction()
AtEOXact_Files();
/* Here we'll rollback xaction changes */
MyLastRecPtr.xlogid = 0;
MyLastRecPtr.xrecoff = 0;
AtAbort_Locks();
......@@ -1749,6 +1756,33 @@ xact_undo(XLogRecPtr lsn, XLogRecord *record)
elog(STOP, "xact_redo: unknown op code %u", info);
}
void
xact_desc(char *buf, uint8 xl_info, char* rec)
{
uint8 info = xl_info & ~XLR_INFO_MASK;
if (info == XLOG_XACT_COMMIT)
{
xl_xact_commit *xlrec = (xl_xact_commit*) rec;
struct tm *tm = localtime(&xlrec->xtime);
sprintf(buf + strlen(buf), "commit: %04u-%02u-%02u %02u:%02u:%02u",
tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec);
}
else if (info == XLOG_XACT_ABORT)
{
xl_xact_abort *xlrec = (xl_xact_abort*) rec;
struct tm *tm = localtime(&xlrec->xtime);
sprintf(buf + strlen(buf), "abort: %04u-%02u-%02u %02u:%02u:%02u",
tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec);
}
else
strcat(buf, "UNKNOWN");
}
void
XactPushRollback(void (*func) (void *), void* data)
{
......
src/backend/access/transam/xlog.c
View file @ a7fcadd1
......@@ -6,7 +6,7 @@
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Header: /cvsroot/pgsql/src/backend/access/transam/xlog.c,v 1.18 2000/10/20 11:01:04 vadim Exp $
* $Header: /cvsroot/pgsql/src/backend/access/transam/xlog.c,v 1.19 2000/10/21 15:43:22 vadim Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -27,6 +27,8 @@
#include "storage/spin.h"
#include "storage/s_lock.h"
#include "miscadmin.h"
void UpdateControlFile(void);
int XLOGShmemSize(void);
void XLOGShmemInit(void);
......@@ -41,6 +43,9 @@ uint32 XLOGbuffers = 0;
XLogRecPtr MyLastRecPtr = {0, 0};
bool StopIfError = false;
bool InRecovery = false;
StartUpID ThisStartUpID = 0;
int XLOG_DEBUG = 1;
SPINLOCK ControlFileLockId;
SPINLOCK XidGenLockId;
......@@ -93,6 +98,7 @@ typedef struct XLogCtlData
XLogRecPtr *xlblocks; /* 1st byte ptr-s + BLCKSZ */
uint32 XLogCacheByte;
uint32 XLogCacheBlck;
StartUpID ThisStartUpID;
#ifdef HAS_TEST_AND_SET
slock_t insert_lck;
slock_t info_lck;
......@@ -143,10 +149,14 @@ typedef struct CheckPoint
XLogRecPtr undo; /* first record of oldest in-progress */
/* transaction when we started */
/* (i.e. UNDO end point) */
StartUpID ThisStartUpID;
TransactionId nextXid;
Oid nextOid;
bool Shutdown;
} CheckPoint;
#define XLOG_CHECKPOINT 0x00
/*
* We break each log file in 16Mb segments
*/
......@@ -190,6 +200,7 @@ static int XLogFileInit(uint32 log, uint32 seg);
static int XLogFileOpen(uint32 log, uint32 seg, bool econt);
static XLogRecord *ReadRecord(XLogRecPtr *RecPtr, char *buffer);
static char *str_time(time_t tnow);
static void xlog_outrec(char *buf, XLogRecord *record);
static XLgwrResult LgwrResult = {{0, 0}, {0, 0}};
static XLgwrRqst LgwrRqst = {{0, 0}, {0, 0}};
......@@ -225,6 +236,13 @@ XLogInsert(RmgrId rmid, uint8 info, char *hdr, uint32 hdrlen, char *buf, uint32
if (len == 0 || len > MAXLOGRECSZ)
elog(STOP, "XLogInsert: invalid record len %u", len);
if (IsBootstrapProcessingMode())
{
RecPtr.xlogid = 0;
RecPtr.xrecoff = SizeOfXLogPHD; /* start of 1st checkpoint record */
return (RecPtr);
}
/* obtain xlog insert lock */
if (TAS(&(XLogCtl->insert_lck))) /* busy */
{
......@@ -310,6 +328,23 @@ XLogInsert(RmgrId rmid, uint8 info, char *hdr, uint32 hdrlen, char *buf, uint32
MyProc->logRec = RecPtr;
SpinRelease(SInvalLock);
}
Insert->PrevRecord = RecPtr;
if (XLOG_DEBUG)
{
char buf[8192];
sprintf(buf, "INSERT @ %u/%u: ", RecPtr.xlogid, RecPtr.xrecoff);
xlog_outrec(buf, record);
if (hdr != NULL)
{
strcat(buf, " - ");
RmgrTable[record->xl_rmid].rm_desc(buf, record->xl_info, hdr);
}
strcat(buf, "\n");
write(2, buf, strlen(buf));
}
MyLastRecPtr = RecPtr; /* begin of record */
Insert->currpos += SizeOfXLogRecord;
if (freespace > 0)
......@@ -330,7 +365,7 @@ XLogInsert(RmgrId rmid, uint8 info, char *hdr, uint32 hdrlen, char *buf, uint32
Insert->currpos += wlen;
}
Insert->currpos = ((char *) Insert->currpage) +
DOUBLEALIGN(Insert->currpos - ((char *) Insert->currpage));
MAXALIGN(Insert->currpos - ((char *) Insert->currpage));
len = hdrlen + buflen;
}
......@@ -391,7 +426,7 @@ nbuf:
/* we don't store info in subrecord' xl_info */
subrecord->xl_info = 0;
Insert->currpos = ((char *) Insert->currpage) +
DOUBLEALIGN(Insert->currpos - ((char *) Insert->currpage));
MAXALIGN(Insert->currpos - ((char *) Insert->currpage));
}
freespace = ((char *) Insert->currpage) + BLCKSZ - Insert->currpos;
......@@ -738,7 +773,7 @@ XLogFileInit(uint32 log, uint32 seg)
fd = BasicOpenFile(path, O_RDWR | O_CREAT | O_EXCL | PG_BINARY, S_IRUSR | S_IWUSR);
if (fd < 0)
elog(STOP, "Open(logfile %u seg %u) failed: %d",
elog(STOP, "Init(logfile %u seg %u) failed: %d",
logId, logSeg, errno);
if (lseek(fd, XLogSegSize - 1, SEEK_SET) != (off_t) (XLogSegSize - 1))
......@@ -777,6 +812,7 @@ XLogFileOpen(uint32 log, uint32 seg, bool econt)
logId, logSeg);
return (fd);
}
abort();
elog(STOP, "Open(logfile %u seg %u) failed: %d",
logId, logSeg, errno);
}
......@@ -876,7 +912,7 @@ got_record:;
XLogSubRecord *subrecord;
uint32 len = record->xl_len;
if (DOUBLEALIGN(record->xl_len) + RecPtr->xrecoff % BLCKSZ +
if (MAXALIGN(record->xl_len) + RecPtr->xrecoff % BLCKSZ +
SizeOfXLogRecord != BLCKSZ)
{
elog(emode, "ReadRecord: invalid fragmented record len %u in (%u, %u)",
......@@ -938,7 +974,7 @@ got_record:;
buffer += subrecord->xl_len;
if (subrecord->xl_info & XLR_TO_BE_CONTINUED)
{
if (DOUBLEALIGN(subrecord->xl_len) +
if (MAXALIGN(subrecord->xl_len) +
SizeOfXLogPHD + SizeOfXLogSubRecord != BLCKSZ)
{
elog(emode, "ReadRecord: invalid fragmented subrecord len %u in logfile %u seg %u off %u",
......@@ -949,26 +985,26 @@ got_record:;
}
break;
}
if (BLCKSZ - SizeOfXLogRecord >= DOUBLEALIGN(subrecord->xl_len) +
if (BLCKSZ - SizeOfXLogRecord >= MAXALIGN(subrecord->xl_len) +
SizeOfXLogPHD + SizeOfXLogSubRecord)
{
nextRecord = (XLogRecord *) ((char *) subrecord +
DOUBLEALIGN(subrecord->xl_len) + SizeOfXLogSubRecord);
MAXALIGN(subrecord->xl_len) + SizeOfXLogSubRecord);
}
EndRecPtr.xlogid = readId;
EndRecPtr.xrecoff = readSeg * XLogSegSize + readOff * BLCKSZ +
SizeOfXLogPHD + SizeOfXLogSubRecord +
DOUBLEALIGN(subrecord->xl_len);
MAXALIGN(subrecord->xl_len);
ReadRecPtr = *RecPtr;
return (record);
}
if (BLCKSZ - SizeOfXLogRecord >= DOUBLEALIGN(record->xl_len) +
if (BLCKSZ - SizeOfXLogRecord >= MAXALIGN(record->xl_len) +
RecPtr->xrecoff % BLCKSZ + SizeOfXLogRecord)
nextRecord = (XLogRecord *) ((char *) record +
DOUBLEALIGN(record->xl_len) + SizeOfXLogRecord);
MAXALIGN(record->xl_len) + SizeOfXLogRecord);
EndRecPtr.xlogid = RecPtr->xlogid;
EndRecPtr.xrecoff = RecPtr->xrecoff +
DOUBLEALIGN(record->xl_len) + SizeOfXLogRecord;
MAXALIGN(record->xl_len) + SizeOfXLogRecord;
ReadRecPtr = *RecPtr;
return (record);
......@@ -1130,7 +1166,7 @@ BootStrapXLOG()
char buffer[BLCKSZ];
CheckPoint checkPoint;
#ifdef NOT_USED
#ifdef XLOG
XLogPageHeader page = (XLogPageHeader) buffer;
XLogRecord *record;
......@@ -1146,8 +1182,9 @@ BootStrapXLOG()
checkPoint.undo = checkPoint.redo;
checkPoint.nextXid = FirstTransactionId;
checkPoint.nextOid = BootstrapObjectIdData;
checkPoint.ThisStartUpID = 0;
#ifdef NOT_USED
#ifdef XLOG
memset(buffer, 0, BLCKSZ);
page->xlp_magic = XLOG_PAGE_MAGIC;
......@@ -1213,7 +1250,7 @@ str_time(time_t tnow)
void
StartupXLOG()
{
#ifdef NOT_USED
#ifdef XLOG
XLogCtlInsert *Insert;
CheckPoint checkPoint;
XLogRecPtr RecPtr,
......@@ -1291,7 +1328,7 @@ StartupXLOG()
elog(LOG, "Data Base System was interrupted being in production at %s",
str_time(ControlFile->time));
#ifdef NOT_USED
#ifdef XLOG
LastRec = RecPtr = ControlFile->checkPoint;
if (!XRecOffIsValid(RecPtr.xrecoff))
......@@ -1312,17 +1349,20 @@ StartupXLOG()
checkPoint.nextXid, checkPoint.nextOid);
if (checkPoint.nextXid < FirstTransactionId ||
checkPoint.nextOid < BootstrapObjectIdData)
#ifdef XLOG
#ifdef XLOG_2
elog(STOP, "Invalid NextTransactionId/NextOid");
#else
elog(LOG, "Invalid NextTransactionId/NextOid");
#endif
#ifdef XLOG
#ifdef XLOG_2
ShmemVariableCache->nextXid = checkPoint.nextXid;
ShmemVariableCache->nextOid = checkPoint.nextOid;
#endif
ThisStartUpID = checkPoint.ThisStartUpID;
if (XLByteLT(RecPtr, checkPoint.redo))
elog(STOP, "Invalid redo in checkPoint record");
if (checkPoint.undo.xrecoff == 0)
......@@ -1364,10 +1404,23 @@ StartupXLOG()
ReadRecPtr.xlogid, ReadRecPtr.xrecoff);
do
{
#ifdef XLOG
#ifdef XLOG_2
if (record->xl_xid >= ShmemVariableCache->nextXid)
ShmemVariableCache->nextXid = record->xl_xid + 1;
#endif
if (XLOG_DEBUG)
{
char buf[8192];
sprintf(buf, "REDO @ %u/%u: ", ReadRecPtr.xlogid, ReadRecPtr.xrecoff);
xlog_outrec(buf, record);
strcat(buf, " - ");
RmgrTable[record->xl_rmid].rm_desc(buf,
record->xl_info, XLogRecGetData(record));
strcat(buf, "\n");
write(2, buf, strlen(buf));
}
RmgrTable[record->xl_rmid].rm_redo(EndRecPtr, record);
record = ReadRecord(NULL, buffer);
} while (record->xl_len != 0);
......@@ -1422,6 +1475,7 @@ StartupXLOG()
if (recovery > 0)
{
#ifdef NOT_USED
int i;
/*
......@@ -1429,21 +1483,37 @@ StartupXLOG()
*/
for (i = 0; i <= RM_MAX_ID; i++)
RmgrTable[record->xl_rmid].rm_redo(ReadRecPtr, NULL);
#endif
CreateCheckPoint(true);
StopIfError = sie_saved;
}
#endif /* NOT_USED */
#endif /* XLOG */
ControlFile->state = DB_IN_PRODUCTION;
ControlFile->time = time(NULL);
UpdateControlFile();
ThisStartUpID++;
XLogCtl->ThisStartUpID = ThisStartUpID;
elog(LOG, "Data Base System is in production state at %s", str_time(time(NULL)));
return;
}
/*
* Postmaster uses it to set ThisStartUpID from XLogCtlData
* located in shmem after successful startup.
*/
void SetThisStartUpID(void);
void
SetThisStartUpID(void)
{
ThisStartUpID = XLogCtl->ThisStartUpID;
}
/*
* This func must be called ONCE on system shutdown
*/
......@@ -1461,7 +1531,7 @@ ShutdownXLOG()
void
CreateCheckPoint(bool shutdown)
{
#ifdef NOT_USED
#ifdef XLOG
CheckPoint checkPoint;
XLogRecPtr recptr;
XLogCtlInsert *Insert = &XLogCtl->Insert;
......@@ -1475,6 +1545,8 @@ CreateCheckPoint(bool shutdown)
ControlFile->time = time(NULL);
UpdateControlFile();
}
checkPoint.ThisStartUpID = ThisStartUpID;
checkPoint.Shutdown = shutdown;
/* Get REDO record ptr */
while (TAS(&(XLogCtl->insert_lck)))
......@@ -1517,20 +1589,21 @@ CreateCheckPoint(bool shutdown)
if (shutdown && checkPoint.undo.xrecoff != 0)
elog(STOP, "Active transaction while data base is shutting down");
recptr = XLogInsert(RM_XLOG_ID, (char *) &checkPoint, sizeof(checkPoint), NULL, 0);
recptr = XLogInsert(RM_XLOG_ID, XLOG_CHECKPOINT, (char *) &checkPoint,
sizeof(checkPoint), NULL, 0);
if (shutdown && !XLByteEQ(checkPoint.redo, MyLastRecPtr))
elog(STOP, "XLog concurrent activity while data base is shutting down");
XLogFlush(recptr);
#endif /* NOT_USED */
#endif /* XLOG */
SpinAcquire(ControlFileLockId);
if (shutdown)
ControlFile->state = DB_SHUTDOWNED;
#ifdef NOT_USED
#ifdef XLOG
ControlFile->checkPoint = MyLastRecPtr;
#else
ControlFile->checkPoint.xlogid = 0;
......@@ -1543,3 +1616,47 @@ CreateCheckPoint(bool shutdown)
return;
}
void xlog_redo(XLogRecPtr lsn, XLogRecord *record);
void xlog_undo(XLogRecPtr lsn, XLogRecord *record);
void xlog_desc(char *buf, uint8 xl_info, char* rec);
void
xlog_redo(XLogRecPtr lsn, XLogRecord *record)
{
}
void
xlog_undo(XLogRecPtr lsn, XLogRecord *record)
{
}
void
xlog_desc(char *buf, uint8 xl_info, char* rec)
{
uint8 info = xl_info & ~XLR_INFO_MASK;
if (info == XLOG_CHECKPOINT)
{
CheckPoint *checkpoint = (CheckPoint*) rec;
sprintf(buf + strlen(buf), "checkpoint: redo %u/%u; undo %u/%u; "
"sui %u; xid %u; oid %u; %s",
checkpoint->redo.xlogid, checkpoint->redo.xrecoff,
checkpoint->undo.xlogid, checkpoint->undo.xrecoff,
checkpoint->ThisStartUpID, checkpoint->nextXid,
checkpoint->nextOid,
(checkpoint->Shutdown) ? "shutdown" : "online");
}
else
strcat(buf, "UNKNOWN");
}
static void
xlog_outrec(char *buf, XLogRecord *record)
{
sprintf(buf + strlen(buf), "prev %u/%u; xprev %u/%u; xid %u: %s",
record->xl_prev.xlogid, record->xl_prev.xrecoff,
record->xl_xact_prev.xlogid, record->xl_xact_prev.xrecoff,
record->xl_xid,
RmgrTable[record->xl_rmid].rm_name);
}
src/backend/access/transam/xlogutils.c
View file @ a7fcadd1
......@@ -276,6 +276,9 @@ _xl_init_rel_cache(void)
_xlpgcarr = (Form_pg_class) malloc(sizeof(FormData_pg_class) * _xlcnt);
memset(_xlpgcarr, 0, sizeof(XLogRelDesc) * _xlcnt);
_xlrelarr[0].moreRecently = &(_xlrelarr[0]);
_xlrelarr[0].lessRecently = &(_xlrelarr[0]);
memset(&ctl, 0, (int) sizeof(ctl));
ctl.keysize = sizeof(RelFileNode);
ctl.datasize = sizeof(XLogRelDesc*);
......@@ -383,6 +386,7 @@ XLogOpenRelation(bool redo, RmgrId rmid, RelFileNode rnode)
hentry->rdesc = res;
res->reldata.rd_unlinked = true; /* look smgropen */
res->reldata.rd_fd = -1;
res->reldata.rd_fd = smgropen(DEFAULT_SMGR, &(res->reldata));
}
......
src/backend/bootstrap/bootstrap.c
View file @ a7fcadd1
......@@ -8,7 +8,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/bootstrap/bootstrap.c,v 1.93 2000/09/06 14:15:14 petere Exp $
* $Header: /cvsroot/pgsql/src/backend/bootstrap/bootstrap.c,v 1.94 2000/10/21 15:43:24 vadim Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -345,6 +345,7 @@ BootstrapMain(int argc, char *argv[])
if (IsUnderPostmaster && xloginit)
{
SetProcessingMode(NormalProcessing);
StartupXLOG();
proc_exit(0);
}
......@@ -360,6 +361,7 @@ BootstrapMain(int argc, char *argv[])
if (IsUnderPostmaster && !xloginit)
{
SetProcessingMode(NormalProcessing);
ShutdownXLOG();
proc_exit(0);
}
......
src/backend/postmaster/postmaster.c
View file @ a7fcadd1
......@@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/postmaster/postmaster.c,v 1.172 2000/10/16 14:52:08 vadim Exp $
* $Header: /cvsroot/pgsql/src/backend/postmaster/postmaster.c,v 1.173 2000/10/21 15:43:26 vadim Exp $
*
* NOTES
*
......@@ -220,6 +220,10 @@ extern char *optarg;
extern int optind,
opterr;
extern char XLogDir[];
extern char ControlFilePath[];
extern void SetThisStartUpID(void);
/*
* postmaster.c - function prototypes
*/
......@@ -600,6 +604,10 @@ PostmasterMain(int argc, char *argv[])
/* set up shared memory and semaphores */
reset_shared(PostPortName);
/* Init XLOG pathes */
snprintf(XLogDir, MAXPGPATH, "%s/pg_xlog", DataDir);
snprintf(ControlFilePath, MAXPGPATH, "%s/global/pg_control", DataDir);
/*
* Initialize the list of active backends. This list is only used for
* garbage collecting the backend processes.
......@@ -1449,6 +1457,12 @@ reaper(SIGNAL_ARGS)
abort();
ShutdownPID = ShutdownDataBase();
}
/*
* Startup succeeded - remember its ID
*/
SetThisStartUpID();
pqsignal(SIGCHLD, reaper);
return;
}
......
src/backend/storage/buffer/bufmgr.c
View file @ a7fcadd1
......@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/storage/buffer/bufmgr.c,v 1.88 2000/10/20 11:01:07 vadim Exp $
* $Header: /cvsroot/pgsql/src/backend/storage/buffer/bufmgr.c,v 1.89 2000/10/21 15:43:27 vadim Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -609,7 +609,7 @@ BufferAlloc(Relation reln,
}
/* record the database name and relation name for this buffer */
strcpy(buf->blind.dbname, DatabaseName);
strcpy(buf->blind.dbname, (DatabaseName) ? DatabaseName : "Recovery");
strcpy(buf->blind.relname, RelationGetPhysicalRelationName(reln));
buf->relId = reln->rd_lockInfo.lockRelId;
......@@ -1168,8 +1168,9 @@ BufferSync()
SpinRelease(BufMgrLock);
}
#ifndef XLOG
LocalBufferSync();
#endif
}
......
src/backend/storage/page/bufpage.c
View file @ a7fcadd1
......@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/storage/page/bufpage.c,v 1.32 2000/10/20 11:28:39 vadim Exp $
* $Header: /cvsroot/pgsql/src/backend/storage/page/bufpage.c,v 1.33 2000/10/21 15:43:29 vadim Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -245,7 +245,11 @@ itemidcompare(const void *itemidp1, const void *itemidp2)
/*
* PageRepairFragmentation
*
* Frees fragmented space on a page.
* It doesn't remove unused line pointers! Please don't change this.
* This routine is usable for heap pages only.
*
*/
void
PageRepairFragmentation(Page page)
......@@ -264,6 +268,8 @@ PageRepairFragmentation(Page page)
for (i = 0; i < nline; i++)
{
lp = ((PageHeader) page)->pd_linp + i;
if ((*lp).lp_flags & LP_DELETE) /* marked for deletion */
(*lp).lp_flags &= ~(LP_USED | LP_DELETE);
if ((*lp).lp_flags & LP_USED)
nused++;
}
......@@ -343,6 +349,31 @@ PageGetFreeSpace(Page page)
return space;
}
/*
* PageRepairFragmentation un-useful for index page cleanup because
* of it doesn't remove line pointers. This routine could be more
* effective but ... no time -:)
*/
void
IndexPageCleanup(Buffer buffer)
{
Page page = (Page) BufferGetPage(buffer);
ItemId lp;
OffsetNumber maxoff;
OffsetNumber i;
maxoff = PageGetMaxOffsetNumber(page);
for (i = 0; i < maxoff; i++)
{
lp = ((PageHeader) page)->pd_linp + i;
if ((*lp).lp_flags & LP_DELETE) /* marked for deletion */
{
PageIndexTupleDelete(page, i + 1);
maxoff--;
}
}
}
/*
*----------------------------------------------------------------
* PageIndexTupleDelete
......
src/backend/storage/smgr/smgr.c
View file @ a7fcadd1
......@@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/storage/smgr/smgr.c,v 1.40 2000/10/16 14:52:12 vadim Exp $
* $Header: /cvsroot/pgsql/src/backend/storage/smgr/smgr.c,v 1.41 2000/10/21 15:43:31 vadim Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -539,3 +539,26 @@ smgriswo(int16 smgrno)
}
#endif
#ifdef XLOG
#include "access/xlog.h"
void smgr_redo(XLogRecPtr lsn, XLogRecord *record);
void smgr_undo(XLogRecPtr lsn, XLogRecord *record);
void smgr_desc(char *buf, uint8 xl_info, char* rec);
void
smgr_redo(XLogRecPtr lsn, XLogRecord *record)
{
}
void
smgr_undo(XLogRecPtr lsn, XLogRecord *record)
{
}
void
smgr_desc(char *buf, uint8 xl_info, char* rec)
{
}
#endif
src/include/access/nbtree.h
View file @ a7fcadd1
......@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: nbtree.h,v 1.45 2000/10/13 12:05:22 vadim Exp $
* $Id: nbtree.h,v 1.46 2000/10/21 15:43:33 vadim Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -266,9 +266,9 @@ typedef struct xl_btree_insert
typedef struct xl_btree_split
{
xl_btreetid target; /* inserted tuple id */
BlockId otherblk; /* second block participated in split: */
BlockIdData otherblk; /* second block participated in split: */
/* first one is stored in target' tid */
BlockId rightblk; /* next right block */
BlockIdData rightblk; /* next right block */
/*
* We log all btitems from the right sibling. If new btitem goes on
* the left sibling then we log it too and it will be the first
......@@ -277,7 +277,7 @@ typedef struct xl_btree_split
*/
} xl_btree_split;
#define SizeOfBtreeSplit (offsetof(xl_btree_insert, rightblk) + sizeof(BlockId))
#define SizeOfBtreeSplit (offsetof(xl_btree_split, rightblk) + sizeof(BlockIdData))
/*
* New root log record.
......@@ -285,11 +285,11 @@ typedef struct xl_btree_split
typedef struct xl_btree_newroot
{
RelFileNode node;
BlockId rootblk;
BlockIdData rootblk;
/* 0 or 2 BTITEMS FOLLOW AT END OF STRUCT */
} xl_btree_newroot;
#define SizeOfBtreeNewroot (offsetof(xl_btree_newroot, rootblk) + sizeof(BlockId))
#define SizeOfBtreeNewroot (offsetof(xl_btree_newroot, rootblk) + sizeof(BlockIdData))
/* end of XLOG stuff */
......
src/include/access/rmgr.h
View file @ a7fcadd1
......@@ -2,7 +2,7 @@
*
* rmgr.h
*
* Resource managers description table
* Resource managers definition
*
*/
#ifndef RMGR_H
......@@ -10,15 +10,6 @@
typedef uint8 RmgrId;
typedef struct RmgrData
{
char *rm_name;
void (*rm_redo)(); /* REDO(XLogRecPtr lsn, XLogRecord rptr) */
void (*rm_undo)(); /* UNDO(XLogRecPtr lsn, XLogRecord rptr) */
} RmgrData;
extern RmgrData *RmgrTable;
/*
* Built-in resource managers
*/
......
src/include/access/xlog.h
View file @ a7fcadd1
......@@ -90,6 +90,17 @@ typedef XLogPageHeaderData *XLogPageHeader;
typedef uint32 StartUpID;
extern StartUpID ThisStartUpID;
extern bool InRecovery;
extern XLogRecPtr MyLastRecPtr;
typedef struct RmgrData
{
char *rm_name;
void (*rm_redo)(XLogRecPtr lsn, XLogRecord *rptr);
void (*rm_undo)(XLogRecPtr lsn, XLogRecord *rptr);
void (*rm_desc)(char *buf, uint8 xl_info, char *rec);
} RmgrData;
extern RmgrData RmgrTable[];
extern XLogRecPtr XLogInsert(RmgrId rmid, uint8 info,
char *hdr, uint32 hdrlen,
......
src/include/storage/bufpage.h
View file @ a7fcadd1
......@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: bufpage.h,v 1.33 2000/10/20 11:01:21 vadim Exp $
* $Id: bufpage.h,v 1.34 2000/10/21 15:43:36 vadim Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -324,6 +324,7 @@ extern void PageRestoreTempPage(Page tempPage, Page oldPage);
extern void PageRepairFragmentation(Page page);
extern Size PageGetFreeSpace(Page page);
extern void PageIndexTupleDelete(Page page, OffsetNumber offset);
extern void IndexPageCleanup(Buffer buffer);
#endif /* BUFPAGE_H */
src/include/storage/itemid.h
View file @ a7fcadd1
......@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: itemid.h,v 1.13 2000/10/20 11:01:21 vadim Exp $
* $Id: itemid.h,v 1.14 2000/10/21 15:43:36 vadim Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -31,15 +31,11 @@ typedef ItemIdData *ItemId;
*/
#define LP_USED 0x01 /* this line pointer is being used */
#ifdef XLOG
#define LP_DELETE 0x02 /* item is to be deleted */
#define ItemIdDeleted(itemId) \
(((itemId)->lp_flags & LP_DELETE) != 0)
#endif
/*
* This bit may be passed to PageAddItem together with
* LP_USED & LP_DELETED bits to specify overwrite mode
......
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