本文整理汇总了C++中GinPageGetOpaque函数的典型用法代码示例。如果您正苦于以下问题:C++ GinPageGetOpaque函数的具体用法?C++ GinPageGetOpaque怎么用?C++ GinPageGetOpaque使用的例子?那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了GinPageGetOpaque函数的20个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的C++代码示例。
示例1: GinDataPageAddPostingItem
/*
* add PostingItem to a non-leaf page.
*/
void
GinDataPageAddPostingItem(Page page, PostingItem *data, OffsetNumber offset)
{
OffsetNumber maxoff = GinPageGetOpaque(page)->maxoff;
char *ptr;
Assert(PostingItemGetBlockNumber(data) != InvalidBlockNumber);
Assert(!GinPageIsLeaf(page));
if (offset == InvalidOffsetNumber)
{
ptr = (char *) GinDataPageGetPostingItem(page, maxoff + 1);
}
else
{
ptr = (char *) GinDataPageGetPostingItem(page, offset);
if (maxoff + 1 - offset != 0)
memmove(ptr + sizeof(PostingItem),
ptr,
(maxoff - offset + 1) * sizeof(PostingItem));
}
memcpy(ptr, data, sizeof(PostingItem));
GinPageGetOpaque(page)->maxoff++;
}
开发者ID:42penguins,项目名称:postgres,代码行数:28,代码来源:gindatapage.c
示例2: GinDataPageAddItemPointer
/*
* add ItemPointer to a leaf page.
*/
void
GinDataPageAddItemPointer(Page page, ItemPointer data, OffsetNumber offset)
{
OffsetNumber maxoff = GinPageGetOpaque(page)->maxoff;
char *ptr;
Assert(ItemPointerIsValid(data));
Assert(GinPageIsLeaf(page));
if (offset == InvalidOffsetNumber)
{
ptr = (char *) GinDataPageGetItemPointer(page, maxoff + 1);
}
else
{
ptr = (char *) GinDataPageGetItemPointer(page, offset);
if (maxoff + 1 - offset != 0)
memmove(ptr + sizeof(ItemPointerData),
ptr,
(maxoff - offset + 1) * sizeof(ItemPointerData));
}
memcpy(ptr, data, sizeof(ItemPointerData));
GinPageGetOpaque(page)->maxoff++;
}
开发者ID:42penguins,项目名称:postgres,代码行数:28,代码来源:gindatapage.c
示例3: ginRedoInsertListPage
static void
ginRedoInsertListPage(XLogReaderState *record)
{
XLogRecPtr lsn = record->EndRecPtr;
ginxlogInsertListPage *data = (ginxlogInsertListPage *) XLogRecGetData(record);
Buffer buffer;
Page page;
OffsetNumber l,
off = FirstOffsetNumber;
int i,
tupsize;
char *payload;
IndexTuple tuples;
Size totaltupsize;
/* We always re-initialize the page. */
buffer = XLogInitBufferForRedo(record, 0);
page = BufferGetPage(buffer);
GinInitBuffer(buffer, GIN_LIST);
GinPageGetOpaque(page)->rightlink = data->rightlink;
if (data->rightlink == InvalidBlockNumber)
{
/* tail of sublist */
GinPageSetFullRow(page);
GinPageGetOpaque(page)->maxoff = 1;
}
else
{
GinPageGetOpaque(page)->maxoff = 0;
}
payload = XLogRecGetBlockData(record, 0, &totaltupsize);
tuples = (IndexTuple) payload;
for (i = 0; i < data->ntuples; i++)
{
tupsize = IndexTupleSize(tuples);
l = PageAddItem(page, (Item) tuples, tupsize, off, false, false);
if (l == InvalidOffsetNumber)
elog(ERROR, "failed to add item to index page");
tuples = (IndexTuple) (((char *) tuples) + tupsize);
off++;
}
Assert((char *) tuples == payload + totaltupsize);
PageSetLSN(page, lsn);
MarkBufferDirty(buffer);
UnlockReleaseBuffer(buffer);
}
开发者ID:EccentricLoggers,项目名称:peloton,代码行数:54,代码来源:ginxlog.cpp
示例4: ginRedoInsertListPage
static void
ginRedoInsertListPage(XLogRecPtr lsn, XLogRecord *record)
{
ginxlogInsertListPage *data = (ginxlogInsertListPage *) XLogRecGetData(record);
Buffer buffer;
Page page;
OffsetNumber l,
off = FirstOffsetNumber;
int i,
tupsize;
IndexTuple tuples = (IndexTuple) (XLogRecGetData(record) + sizeof(ginxlogInsertListPage));
/* If we have a full-page image, restore it and we're done */
if (record->xl_info & XLR_BKP_BLOCK(0))
{
(void) RestoreBackupBlock(lsn, record, 0, false, false);
return;
}
buffer = XLogReadBuffer(data->node, data->blkno, true);
Assert(BufferIsValid(buffer));
page = BufferGetPage(buffer);
GinInitBuffer(buffer, GIN_LIST);
GinPageGetOpaque(page)->rightlink = data->rightlink;
if (data->rightlink == InvalidBlockNumber)
{
/* tail of sublist */
GinPageSetFullRow(page);
GinPageGetOpaque(page)->maxoff = 1;
}
else
{
GinPageGetOpaque(page)->maxoff = 0;
}
for (i = 0; i < data->ntuples; i++)
{
tupsize = IndexTupleSize(tuples);
l = PageAddItem(page, (Item) tuples, tupsize, off, false, false);
if (l == InvalidOffsetNumber)
elog(ERROR, "failed to add item to index page");
tuples = (IndexTuple) (((char *) tuples) + tupsize);
}
PageSetLSN(page, lsn);
MarkBufferDirty(buffer);
UnlockReleaseBuffer(buffer);
}
开发者ID:josephmate,项目名称:ui-optimizer-postgres,代码行数:53,代码来源:ginxlog.c
示例5: ginRedoInsertListPage
static void
ginRedoInsertListPage(XLogRecPtr lsn, XLogRecord *record)
{
ginxlogInsertListPage *data = (ginxlogInsertListPage *) XLogRecGetData(record);
Buffer buffer;
Page page;
OffsetNumber l,
off = FirstOffsetNumber;
int i,
tupsize;
IndexTuple tuples = (IndexTuple) (XLogRecGetData(record) + sizeof(ginxlogInsertListPage));
/*
* Backup blocks are not used, we always re-initialize the page.
*/
Assert(!(record->xl_info & XLR_BKP_BLOCK_MASK));
buffer = XLogReadBuffer(data->node, data->blkno, true);
Assert(BufferIsValid(buffer));
page = BufferGetPage(buffer);
GinInitBuffer(buffer, GIN_LIST);
GinPageGetOpaque(page)->rightlink = data->rightlink;
if (data->rightlink == InvalidBlockNumber)
{
/* tail of sublist */
GinPageSetFullRow(page);
GinPageGetOpaque(page)->maxoff = 1;
}
else
{
GinPageGetOpaque(page)->maxoff = 0;
}
for (i = 0; i < data->ntuples; i++)
{
tupsize = IndexTupleSize(tuples);
l = PageAddItem(page, (Item) tuples, tupsize, off, false, false);
if (l == InvalidOffsetNumber)
elog(ERROR, "failed to add item to index page");
tuples = (IndexTuple) (((char *) tuples) + tupsize);
off++;
}
PageSetLSN(page, lsn);
MarkBufferDirty(buffer);
UnlockReleaseBuffer(buffer);
}
开发者ID:pythonesque,项目名称:postgres,代码行数:52,代码来源:ginxlog.c
示例6: ginRedoDeletePage
static void
ginRedoDeletePage(XLogReaderState *record)
{
XLogRecPtr lsn = record->EndRecPtr;
ginxlogDeletePage *data = (ginxlogDeletePage *) XLogRecGetData(record);
Buffer dbuffer;
Buffer pbuffer;
Buffer lbuffer;
Page page;
/*
* Lock left page first in order to prevent possible deadlock with
* ginStepRight().
*/
if (XLogReadBufferForRedo(record, 2, &lbuffer) == BLK_NEEDS_REDO)
{
page = BufferGetPage(lbuffer);
Assert(GinPageIsData(page));
GinPageGetOpaque(page)->rightlink = data->rightLink;
PageSetLSN(page, lsn);
MarkBufferDirty(lbuffer);
}
if (XLogReadBufferForRedo(record, 0, &dbuffer) == BLK_NEEDS_REDO)
{
page = BufferGetPage(dbuffer);
Assert(GinPageIsData(page));
GinPageGetOpaque(page)->flags = GIN_DELETED;
GinPageSetDeleteXid(page, data->deleteXid);
PageSetLSN(page, lsn);
MarkBufferDirty(dbuffer);
}
if (XLogReadBufferForRedo(record, 1, &pbuffer) == BLK_NEEDS_REDO)
{
page = BufferGetPage(pbuffer);
Assert(GinPageIsData(page));
Assert(!GinPageIsLeaf(page));
GinPageDeletePostingItem(page, data->parentOffset);
PageSetLSN(page, lsn);
MarkBufferDirty(pbuffer);
}
if (BufferIsValid(lbuffer))
UnlockReleaseBuffer(lbuffer);
if (BufferIsValid(pbuffer))
UnlockReleaseBuffer(pbuffer);
if (BufferIsValid(dbuffer))
UnlockReleaseBuffer(dbuffer);
}
开发者ID:winlibs,项目名称:postgresql,代码行数:50,代码来源:ginxlog.c
示例7: GinPageDeletePostingItem
/*
* Deletes posting item from non-leaf page
*/
void
GinPageDeletePostingItem(Page page, OffsetNumber offset)
{
OffsetNumber maxoff = GinPageGetOpaque(page)->maxoff;
Assert(!GinPageIsLeaf(page));
Assert(offset >= FirstOffsetNumber && offset <= maxoff);
if (offset != maxoff)
memmove(GinDataPageGetItem(page, offset), GinDataPageGetItem(page, offset + 1),
sizeof(PostingItem) * (maxoff - offset));
GinPageGetOpaque(page)->maxoff--;
}
开发者ID:harikrishnan94,项目名称:postgresql-jit,代码行数:17,代码来源:gindatapage.c
示例8: ginStepRight
/*
* Step right from current page.
*
* The next page is locked first, before releasing the current page. This is
* crucial to protect from concurrent page deletion (see comment in
* ginDeletePage).
*/
Buffer
ginStepRight(Buffer buffer, Relation index, int lockmode)
{
Buffer nextbuffer;
Page page = BufferGetPage(buffer);
bool isLeaf = GinPageIsLeaf(page);
bool isData = GinPageIsData(page);
BlockNumber blkno = GinPageGetOpaque(page)->rightlink;
nextbuffer = ReadBuffer(index, blkno);
LockBuffer(nextbuffer, lockmode);
UnlockReleaseBuffer(buffer);
/* Sanity check that the page we stepped to is of similar kind. */
page = BufferGetPage(nextbuffer);
if (isLeaf != GinPageIsLeaf(page) || isData != GinPageIsData(page))
elog(ERROR, "right sibling of GIN page is of different type");
/*
* Given the proper lock sequence above, we should never land on a deleted
* page.
*/
if (GinPageIsDeleted(page))
elog(ERROR, "right sibling of GIN page was deleted");
return nextbuffer;
}
开发者ID:Gozhack,项目名称:postgres,代码行数:34,代码来源:ginbtree.c
示例9: gin_mask
/*
* Mask a GIN page before running consistency checks on it.
*/
void
gin_mask(char *pagedata, BlockNumber blkno)
{
Page page = (Page) pagedata;
GinPageOpaque opaque;
mask_page_lsn_and_checksum(page);
opaque = GinPageGetOpaque(page);
mask_page_hint_bits(page);
/*
* GIN metapage doesn't use pd_lower/pd_upper. Other page types do. Hence,
* we need to apply masking for those pages.
*/
if (opaque->flags != GIN_META)
{
/*
* For GIN_DELETED page, the page is initialized to empty. Hence, mask
* the page content.
*/
if (opaque->flags & GIN_DELETED)
mask_page_content(page);
else
mask_unused_space(page);
}
}
开发者ID:adam8157,项目名称:gpdb,代码行数:30,代码来源:ginxlog.c
示例10: GinDataPageAddItem
/*
* add ItemPointer or PostingItem to page. data should point to
* correct value! depending on leaf or non-leaf page
*/
void
GinDataPageAddItem(Page page, void *data, OffsetNumber offset)
{
OffsetNumber maxoff = GinPageGetOpaque(page)->maxoff;
char *ptr;
if (offset == InvalidOffsetNumber)
{
ptr = GinDataPageGetItem(page, maxoff + 1);
}
else
{
ptr = GinDataPageGetItem(page, offset);
if (maxoff + 1 - offset != 0)
memmove(ptr + GinSizeOfItem(page), ptr, (maxoff - offset + 1) * GinSizeOfItem(page));
}
memcpy(ptr, data, GinSizeOfItem(page));
GinPageGetOpaque(page)->maxoff++;
}
开发者ID:asurinsaka,项目名称:postgresql-8.2.19-lru,代码行数:24,代码来源:gindatapage.c
示例11: GinInitPage
void
GinInitPage(Page page, uint32 f, Size pageSize)
{
GinPageOpaque opaque;
PageInit(page, pageSize, sizeof(GinPageOpaqueData));
opaque = GinPageGetOpaque(page);
memset(opaque, 0, sizeof(GinPageOpaqueData));
opaque->flags = f;
opaque->rightlink = InvalidBlockNumber;
}
开发者ID:Joe-xXx,项目名称:postgres-old-soon-decommissioned,代码行数:12,代码来源:ginutil.c
示例12: dataGetLeftMostPage
/*
* returns blkno of leftmost child
*/
static BlockNumber
dataGetLeftMostPage(GinBtree btree, Page page)
{
PostingItem *pitem;
Assert(!GinPageIsLeaf(page));
Assert(GinPageIsData(page));
Assert(GinPageGetOpaque(page)->maxoff >= FirstOffsetNumber);
pitem = (PostingItem *) GinDataPageGetItem(page, FirstOffsetNumber);
return PostingItemGetBlockNumber(pitem);
}
开发者ID:harikrishnan94,项目名称:postgresql-jit,代码行数:15,代码来源:gindatapage.c
示例13: createPostingTree
/*
* Creates posting tree with one page. Function
* suppose that items[] fits to page
*/
static BlockNumber
createPostingTree(Relation index, ItemPointerData *items, uint32 nitems)
{
BlockNumber blkno;
Buffer buffer = GinNewBuffer(index);
Page page;
START_CRIT_SECTION();
GinInitBuffer(buffer, GIN_DATA | GIN_LEAF);
page = BufferGetPage(buffer);
blkno = BufferGetBlockNumber(buffer);
memcpy(GinDataPageGetData(page), items, sizeof(ItemPointerData) * nitems);
GinPageGetOpaque(page)->maxoff = nitems;
MarkBufferDirty(buffer);
if (!index->rd_istemp)
{
XLogRecPtr recptr;
XLogRecData rdata[2];
ginxlogCreatePostingTree data;
data.node = index->rd_node;
data.blkno = blkno;
data.nitem = nitems;
rdata[0].buffer = InvalidBuffer;
rdata[0].data = (char *) &data;
rdata[0].len = sizeof(ginxlogCreatePostingTree);
rdata[0].next = &rdata[1];
rdata[1].buffer = InvalidBuffer;
rdata[1].data = (char *) items;
rdata[1].len = sizeof(ItemPointerData) * nitems;
rdata[1].next = NULL;
recptr = XLogInsert(RM_GIN_ID, XLOG_GIN_CREATE_PTREE, rdata);
PageSetLSN(page, recptr);
PageSetTLI(page, ThisTimeLineID);
}
UnlockReleaseBuffer(buffer);
END_CRIT_SECTION();
return blkno;
}
开发者ID:HBPSP8Repo,项目名称:NoDB,代码行数:56,代码来源:gininsert.c
示例14: ginRedoDeleteListPages
static void
ginRedoDeleteListPages(XLogRecPtr lsn, XLogRecord *record)
{
ginxlogDeleteListPages *data = (ginxlogDeleteListPages *) XLogRecGetData(record);
Buffer metabuffer;
Page metapage;
int i;
/* Backup blocks are not used in delete_listpage records */
Assert(!(record->xl_info & XLR_BKP_BLOCK_MASK));
metabuffer = XLogReadBuffer(data->node, GIN_METAPAGE_BLKNO, false);
if (!BufferIsValid(metabuffer))
return; /* assume index was deleted, nothing to do */
metapage = BufferGetPage(metabuffer);
memcpy(GinPageGetMeta(metapage), &data->metadata, sizeof(GinMetaPageData));
PageSetLSN(metapage, lsn);
MarkBufferDirty(metabuffer);
/*
* In normal operation, shiftList() takes exclusive lock on all the
* pages-to-be-deleted simultaneously. During replay, however, it should
* be all right to lock them one at a time. This is dependent on the fact
* that we are deleting pages from the head of the list, and that readers
* share-lock the next page before releasing the one they are on. So we
* cannot get past a reader that is on, or due to visit, any page we are
* going to delete. New incoming readers will block behind our metapage
* lock and then see a fully updated page list.
*/
for (i = 0; i < data->ndeleted; i++)
{
Buffer buffer = XLogReadBuffer(data->node, data->toDelete[i], false);
if (BufferIsValid(buffer))
{
Page page = BufferGetPage(buffer);
if (lsn > PageGetLSN(page))
{
GinPageGetOpaque(page)->flags = GIN_DELETED;
PageSetLSN(page, lsn);
MarkBufferDirty(buffer);
}
UnlockReleaseBuffer(buffer);
}
}
UnlockReleaseBuffer(metabuffer);
}
开发者ID:pythonesque,项目名称:postgres,代码行数:51,代码来源:ginxlog.c
示例15: dataLocateLeafItem
/*
* Searches correct position for value on leaf page.
* Page should be correctly chosen.
* Returns true if value found on page.
*/
static bool
dataLocateLeafItem(GinBtree btree, GinBtreeStack *stack)
{
Page page = BufferGetPage(stack->buffer);
OffsetNumber low,
high;
int result;
Assert(GinPageIsLeaf(page));
Assert(GinPageIsData(page));
if (btree->fullScan)
{
stack->off = FirstOffsetNumber;
return TRUE;
}
low = FirstOffsetNumber;
high = GinPageGetOpaque(page)->maxoff;
if (high < low)
{
stack->off = FirstOffsetNumber;
return false;
}
high++;
while (high > low)
{
OffsetNumber mid = low + ((high - low) / 2);
result = ginCompareItemPointers(&btree->itemptr,
GinDataPageGetItemPointer(page, mid));
if (result == 0)
{
stack->off = mid;
return true;
}
else if (result > 0)
low = mid + 1;
else
high = mid;
}
stack->off = high;
return false;
}
开发者ID:42penguins,项目名称:postgres,代码行数:54,代码来源:gindatapage.c
示例16: findItemInPage
static bool
findItemInPage(Page page, ItemPointer item, OffsetNumber *off)
{
OffsetNumber maxoff = GinPageGetOpaque(page)->maxoff;
int res;
if ( GinPageGetOpaque(page)->flags & GIN_DELETED )
/* page was deleted by concurrent vacuum */
return false;
/*
* scan page to find equal or first greater value
*/
for (*off = FirstOffsetNumber; *off <= maxoff; (*off)++)
{
res = compareItemPointers(item, (ItemPointer) GinDataPageGetItem(page, *off));
if (res <= 0)
return true;
}
return false;
}
开发者ID:asurinsaka,项目名称:postgresql-8.2.19-lru,代码行数:24,代码来源:ginget.c
示例17: ginRedoClearIncompleteSplit
static void
ginRedoClearIncompleteSplit(XLogReaderState *record, uint8 block_id)
{
XLogRecPtr lsn = record->EndRecPtr;
Buffer buffer;
Page page;
if (XLogReadBufferForRedo(record, block_id, &buffer) == BLK_NEEDS_REDO)
{
page = (Page) BufferGetPage(buffer);
GinPageGetOpaque(page)->flags &= ~GIN_INCOMPLETE_SPLIT;
PageSetLSN(page, lsn);
MarkBufferDirty(buffer);
}
if (BufferIsValid(buffer))
UnlockReleaseBuffer(buffer);
}
开发者ID:EccentricLoggers,项目名称:peloton,代码行数:18,代码来源:ginxlog.cpp
示例18: dataFindChildPtr
/*
* Finds links to blkno on non-leaf page, returns
* offset of PostingItem
*/
static OffsetNumber
dataFindChildPtr(GinBtree btree, Page page, BlockNumber blkno, OffsetNumber storedOff)
{
OffsetNumber i,
maxoff = GinPageGetOpaque(page)->maxoff;
PostingItem *pitem;
Assert(!GinPageIsLeaf(page));
Assert(GinPageIsData(page));
/* if page isn't changed, we return storedOff */
if (storedOff >= FirstOffsetNumber && storedOff <= maxoff)
{
pitem = (PostingItem *) GinDataPageGetItem(page, storedOff);
if (PostingItemGetBlockNumber(pitem) == blkno)
return storedOff;
/*
* we hope, that needed pointer goes to right. It's true if there
* wasn't a deletion
*/
for (i = storedOff + 1; i <= maxoff; i++)
{
pitem = (PostingItem *) GinDataPageGetItem(page, i);
if (PostingItemGetBlockNumber(pitem) == blkno)
return i;
}
maxoff = storedOff - 1;
}
/* last chance */
for (i = FirstOffsetNumber; i <= maxoff; i++)
{
pitem = (PostingItem *) GinDataPageGetItem(page, i);
if (PostingItemGetBlockNumber(pitem) == blkno)
return i;
}
return InvalidOffsetNumber;
}
开发者ID:harikrishnan94,项目名称:postgresql-jit,代码行数:45,代码来源:gindatapage.c
示例19: ginRedoClearIncompleteSplit
static void
ginRedoClearIncompleteSplit(XLogRecPtr lsn, RelFileNode node, BlockNumber blkno)
{
Buffer buffer;
Page page;
buffer = XLogReadBuffer(node, blkno, false);
if (!BufferIsValid(buffer))
return; /* page was deleted, nothing to do */
page = (Page) BufferGetPage(buffer);
if (lsn > PageGetLSN(page))
{
GinPageGetOpaque(page)->flags &= ~GIN_INCOMPLETE_SPLIT;
PageSetLSN(page, lsn);
MarkBufferDirty(buffer);
}
UnlockReleaseBuffer(buffer);
}
开发者ID:pythonesque,项目名称:postgres,代码行数:21,代码来源:ginxlog.c
示例20: ginRedoSplitData
static void
ginRedoSplitData(Page lpage, Page rpage, void *rdata)
{
bool isleaf = GinPageIsLeaf(lpage);
if (isleaf)
{
ginxlogSplitDataLeaf *data = (ginxlogSplitDataLeaf *) rdata;
Pointer lptr = (Pointer) rdata + sizeof(ginxlogSplitDataLeaf);
Pointer rptr = lptr + data->lsize;
Assert(data->lsize > 0 && data->lsize <= GinDataPageMaxDataSize);
Assert(data->rsize > 0 && data->rsize <= GinDataPageMaxDataSize);
memcpy(GinDataLeafPageGetPostingList(lpage), lptr, data->lsize);
memcpy(GinDataLeafPageGetPostingList(rpage), rptr, data->rsize);
GinDataPageSetDataSize(lpage, data->lsize);
GinDataPageSetDataSize(rpage, data->rsize);
*GinDataPageGetRightBound(lpage) = data->lrightbound;
*GinDataPageGetRightBound(rpage) = data->rrightbound;
}
else
{
ginxlogSplitDataInternal *data = (ginxlogSplitDataInternal *) rdata;
PostingItem *items = (PostingItem *) ((char *) rdata + sizeof(ginxlogSplitDataInternal));
OffsetNumber i;
OffsetNumber maxoff;
for (i = 0; i < data->separator; i++)
GinDataPageAddPostingItem(lpage, &items[i], InvalidOffsetNumber);
for (i = data->separator; i < data->nitem; i++)
GinDataPageAddPostingItem(rpage, &items[i], InvalidOffsetNumber);
/* set up right key */
maxoff = GinPageGetOpaque(lpage)->maxoff;
*GinDataPageGetRightBound(lpage) = GinDataPageGetPostingItem(lpage, maxoff)->key;
*GinDataPageGetRightBound(rpage) = data->rightbound;
}
}
开发者ID:pythonesque,项目名称:postgres,代码行数:40,代码来源:ginxlog.c
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