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提交 06af0467 编写于 作者: M Minglei Jin
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fix: dirty new allocated non-dirty page (root leaf without writings)

上级 6af95b3b
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Showing with 298 addition and 281 deletion
source/libs/tdb/src/db/tdbBtree.c
浏览文件 @ 06af0467
......@@ -40,8 +40,8 @@ struct SBTree {
#define TDB_BTREE_PAGE_IS_ROOT(PAGE) (TDB_BTREE_PAGE_GET_FLAGS(PAGE) & TDB_BTREE_ROOT)
#define TDB_BTREE_PAGE_IS_LEAF(PAGE) (TDB_BTREE_PAGE_GET_FLAGS(PAGE) & TDB_BTREE_LEAF)
#define TDB_BTREE_PAGE_IS_OVFL(PAGE) (TDB_BTREE_PAGE_GET_FLAGS(PAGE) & TDB_BTREE_OVFL)
#define TDB_BTREE_ASSERT_FLAG(flags) \
ASSERT(TDB_FLAG_IS(flags, TDB_BTREE_ROOT) || TDB_FLAG_IS(flags, TDB_BTREE_LEAF) || \
#define TDB_BTREE_ASSERT_FLAG(flags) \
ASSERT(TDB_FLAG_IS(flags, TDB_BTREE_ROOT) || TDB_FLAG_IS(flags, TDB_BTREE_LEAF) || \
TDB_FLAG_IS(flags, TDB_BTREE_ROOT | TDB_BTREE_LEAF) || TDB_FLAG_IS(flags, 0) || \
TDB_FLAG_IS(flags, TDB_BTREE_OVFL))
......@@ -58,7 +58,7 @@ typedef struct {
static int tdbDefaultKeyCmprFn(const void *pKey1, int keyLen1, const void *pKey2, int keyLen2);
static int tdbBtreeOpenImpl(SBTree *pBt);
//static int tdbBtreeInitPage(SPage *pPage, void *arg, int init);
// static int tdbBtreeInitPage(SPage *pPage, void *arg, int init);
static int tdbBtreeEncodeCell(SPage *pPage, const void *pKey, int kLen, const void *pVal, int vLen, SCell *pCell,
int *szCell, TXN *pTxn, SBTree *pBt);
static int tdbBtreeDecodeCell(SPage *pPage, const SCell *pCell, SCellDecoder *pDecoder, TXN *pTxn, SBTree *pBt);
......@@ -321,7 +321,7 @@ static int tdbBtreeOpenImpl(SBTree *pBt) {
{
// 1. TODO: Search the main DB to check if the DB exists
ret = tdbPagerOpenDB(pBt->pPager, &pgno, true);
ret = tdbPagerOpenDB(pBt->pPager, &pgno, true, pBt);
ASSERT(ret == 0);
}
......@@ -721,7 +721,8 @@ static int tdbBtreeBalanceNonRoot(SBTree *pBt, SPage *pParent, int idx, TXN *pTx
int szNewCell;
SPgno pgno;
pgno = TDB_PAGE_PGNO(pNews[iNew]);
tdbBtreeEncodeCell(pParent, cd.pKey, cd.kLen, (void *)&pgno, sizeof(SPgno), pNewCell, &szNewCell, pTxn, pBt);
tdbBtreeEncodeCell(pParent, cd.pKey, cd.kLen, (void *)&pgno, sizeof(SPgno), pNewCell, &szNewCell, pTxn,
pBt);
tdbPageInsertCell(pParent, sIdx++, pNewCell, szNewCell, 0);
tdbOsFree(pNewCell);
}
......@@ -916,10 +917,10 @@ static int tdbBtreeEncodePayload(SPage *pPage, SCell *pCell, int nHeader, const
int surplus = minLocal + (nPayload + nHeader - minLocal) % (maxLocal - sizeof(SPgno));
int nLocal = surplus <= maxLocal ? surplus : minLocal;
//int ofpCap = tdbPageCapacity(pBt->pageSize, sizeof(SIntHdr));
// int ofpCap = tdbPageCapacity(pBt->pageSize, sizeof(SIntHdr));
// fetch a new ofp and make it dirty
SPgno pgno = 0;
SPgno pgno = 0;
SPage *ofp, *nextOfp;
ret = tdbFetchOvflPage(&pgno, &ofp, pTxn, pBt);
......@@ -942,8 +943,8 @@ static int tdbBtreeEncodePayload(SPage *pPage, SCell *pCell, int nHeader, const
nLeft -= kLen;
// pack partial val to local if any space left
if (nLocal > kLen + 4) {
memcpy(pCell + nHeader + kLen, pVal, nLocal - kLen - sizeof(SPgno));
nLeft -= nLocal - kLen - sizeof(SPgno);
memcpy(pCell + nHeader + kLen, pVal, nLocal - kLen - sizeof(SPgno));
nLeft -= nLocal - kLen - sizeof(SPgno);
}
// pack nextPgno
......@@ -951,132 +952,132 @@ static int tdbBtreeEncodePayload(SPage *pPage, SCell *pCell, int nHeader, const
// pack left val data to ovpages
do {
lastPage = 0;
if (nLeft <= ofp->maxLocal - sizeof(SPgno)) {
bytes = nLeft;
lastPage = 1;
} else {
bytes = ofp->maxLocal - sizeof(SPgno);
}
// fetch next ofp if not last page
if (!lastPage) {
// fetch a new ofp and make it dirty
ret = tdbFetchOvflPage(&pgno, &nextOfp, pTxn, pBt);
if (ret < 0) {
tdbFree(pBuf);
return -1;
}
} else {
pgno = 0;
}
memcpy(pBuf, ((SCell *)pVal) + vLen - nLeft, bytes);
memcpy(pBuf + bytes, &pgno, sizeof(pgno));
ret = tdbPageInsertCell(ofp, 0, pBuf, bytes + sizeof(pgno), 0);
if (ret < 0) {
tdbFree(pBuf);
return -1;
}
ofp = nextOfp;
nLeft -= bytes;
lastPage = 0;
if (nLeft <= ofp->maxLocal - sizeof(SPgno)) {
bytes = nLeft;
lastPage = 1;
} else {
bytes = ofp->maxLocal - sizeof(SPgno);
}
// fetch next ofp if not last page
if (!lastPage) {
// fetch a new ofp and make it dirty
ret = tdbFetchOvflPage(&pgno, &nextOfp, pTxn, pBt);
if (ret < 0) {
tdbFree(pBuf);
return -1;
}
} else {
pgno = 0;
}
memcpy(pBuf, ((SCell *)pVal) + vLen - nLeft, bytes);
memcpy(pBuf + bytes, &pgno, sizeof(pgno));
ret = tdbPageInsertCell(ofp, 0, pBuf, bytes + sizeof(pgno), 0);
if (ret < 0) {
tdbFree(pBuf);
return -1;
}
ofp = nextOfp;
nLeft -= bytes;
} while (nLeft > 0);
} else {
int nLeftKey = kLen;
// pack partial key and nextPgno
memcpy(pCell + nHeader, pKey, nLocal - 4);
nLeft -= nLocal - 4;
nLeftKey -= nLocal -4;
nLeftKey -= nLocal - 4;
memcpy(pCell + nHeader + nLocal - 4, &pgno, sizeof(pgno));
int lastKeyPageSpace = 0;
// pack left key & val to ovpages
do {
// cal key to cpy
int lastKeyPage = 0;
if (nLeftKey <= ofp->maxLocal - sizeof(SPgno)) {
bytes = nLeftKey;
lastKeyPage = 1;
lastKeyPageSpace = ofp->maxLocal - sizeof(SPgno) - nLeftKey;
} else {
bytes = ofp->maxLocal - sizeof(SPgno);
}
// cpy key
memcpy(pBuf, ((SCell *)pKey) + kLen - nLeftKey, bytes);
if (lastKeyPage) {
if (lastKeyPageSpace >= vLen) {
memcpy(pBuf + kLen -nLeftKey, pVal, vLen);
nLeft -= vLen;
pgno = 0;
} else {
memcpy(pBuf + kLen -nLeftKey, pVal, lastKeyPageSpace);
nLeft -= lastKeyPageSpace;
// fetch next ofp, a new ofp and make it dirty
ret = tdbFetchOvflPage(&pgno, &nextOfp, pTxn, pBt);
if (ret < 0) {
return -1;
}
}
} else {
// fetch next ofp, a new ofp and make it dirty
ret = tdbFetchOvflPage(&pgno, &nextOfp, pTxn, pBt);
if (ret < 0) {
return -1;
}
}
memcpy(pBuf + kLen - nLeft, &pgno, sizeof(pgno));
ret = tdbPageInsertCell(ofp, 0, pBuf, bytes + sizeof(pgno), 0);
if (ret < 0) {
return -1;
}
ofp = nextOfp;
nLeftKey -= bytes;
nLeft -= bytes;
// cal key to cpy
int lastKeyPage = 0;
if (nLeftKey <= ofp->maxLocal - sizeof(SPgno)) {
bytes = nLeftKey;
lastKeyPage = 1;
lastKeyPageSpace = ofp->maxLocal - sizeof(SPgno) - nLeftKey;
} else {
bytes = ofp->maxLocal - sizeof(SPgno);
}
// cpy key
memcpy(pBuf, ((SCell *)pKey) + kLen - nLeftKey, bytes);
if (lastKeyPage) {
if (lastKeyPageSpace >= vLen) {
memcpy(pBuf + kLen - nLeftKey, pVal, vLen);
nLeft -= vLen;
pgno = 0;
} else {
memcpy(pBuf + kLen - nLeftKey, pVal, lastKeyPageSpace);
nLeft -= lastKeyPageSpace;
// fetch next ofp, a new ofp and make it dirty
ret = tdbFetchOvflPage(&pgno, &nextOfp, pTxn, pBt);
if (ret < 0) {
return -1;
}
}
} else {
// fetch next ofp, a new ofp and make it dirty
ret = tdbFetchOvflPage(&pgno, &nextOfp, pTxn, pBt);
if (ret < 0) {
return -1;
}
}
memcpy(pBuf + kLen - nLeft, &pgno, sizeof(pgno));
ret = tdbPageInsertCell(ofp, 0, pBuf, bytes + sizeof(pgno), 0);
if (ret < 0) {
return -1;
}
ofp = nextOfp;
nLeftKey -= bytes;
nLeft -= bytes;
} while (nLeftKey > 0);
while (nLeft > 0) {
// pack left val data to ovpages
lastPage = 0;
if (nLeft <= maxLocal - sizeof(SPgno)) {
bytes = nLeft;
lastPage = 1;
} else {
bytes = maxLocal - sizeof(SPgno);
}
// fetch next ofp if not last page
if (!lastPage) {
// fetch a new ofp and make it dirty
ret = tdbFetchOvflPage(&pgno, &nextOfp, pTxn, pBt);
if (ret < 0) {
tdbFree(pBuf);
return -1;
}
} else {
pgno = 0;
}
memcpy(pBuf, ((SCell *)pVal) + vLen - nLeft, bytes);
memcpy(pBuf + bytes, &pgno, sizeof(pgno));
ret = tdbPageInsertCell(ofp, 0, pBuf, bytes + sizeof(pgno), 0);
if (ret < 0) {
tdbFree(pBuf);
return -1;
}
ofp = nextOfp;
nLeft -= bytes;
// pack left val data to ovpages
lastPage = 0;
if (nLeft <= maxLocal - sizeof(SPgno)) {
bytes = nLeft;
lastPage = 1;
} else {
bytes = maxLocal - sizeof(SPgno);
}
// fetch next ofp if not last page
if (!lastPage) {
// fetch a new ofp and make it dirty
ret = tdbFetchOvflPage(&pgno, &nextOfp, pTxn, pBt);
if (ret < 0) {
tdbFree(pBuf);
return -1;
}
} else {
pgno = 0;
}
memcpy(pBuf, ((SCell *)pVal) + vLen - nLeft, bytes);
memcpy(pBuf + bytes, &pgno, sizeof(pgno));
ret = tdbPageInsertCell(ofp, 0, pBuf, bytes + sizeof(pgno), 0);
if (ret < 0) {
tdbFree(pBuf);
return -1;
}
ofp = nextOfp;
nLeft -= bytes;
}
}
......@@ -1142,7 +1143,8 @@ static int tdbBtreeEncodeCell(SPage *pPage, const void *pKey, int kLen, const vo
return 0;
}
static int tdbBtreeDecodePayload(SPage *pPage, const SCell *pCell, int nHeader, SCellDecoder *pDecoder, TXN *pTxn, SBTree *pBt) {
static int tdbBtreeDecodePayload(SPage *pPage, const SCell *pCell, int nHeader, SCellDecoder *pDecoder, TXN *pTxn,
SBTree *pBt) {
int ret = 0;
int nPayload;
int maxLocal = pPage->maxLocal;
......@@ -1171,149 +1173,149 @@ static int tdbBtreeDecodePayload(SPage *pPage, const SCell *pCell, int nHeader,
int surplus = minLocal + (nPayload + nHeader - minLocal) % (maxLocal - sizeof(SPgno));
int nLocal = surplus <= maxLocal ? surplus : minLocal;
int nLeft = nPayload;
SPgno pgno = 0;
int nLeft = nPayload;
SPgno pgno = 0;
SPage *ofp;
SCell *ofpCell;
int bytes;
int lastPage = 0;
int bytes;
int lastPage = 0;
if (nLocal >= pDecoder->kLen + 4) {
pDecoder->pKey = (SCell *)pCell + nHeader;
nLeft -= kLen;
if (nLocal > kLen + 4) {
// read partial val to local
pDecoder->pVal = tdbRealloc(pDecoder->pVal, vLen);
if (pDecoder->pVal == NULL) {
return -1;
}
TDB_CELLDECODER_SET_FREE_VAL(pDecoder);
// read partial val to local
pDecoder->pVal = tdbRealloc(pDecoder->pVal, vLen);
if (pDecoder->pVal == NULL) {
return -1;
}
TDB_CELLDECODER_SET_FREE_VAL(pDecoder);
memcpy(pDecoder->pVal, pCell + nHeader + kLen, nLocal - kLen - sizeof(SPgno));
memcpy(pDecoder->pVal, pCell + nHeader + kLen, nLocal - kLen - sizeof(SPgno));
nLeft -= nLocal - kLen - sizeof(SPgno);
nLeft -= nLocal - kLen - sizeof(SPgno);
}
memcpy(&pgno, pCell + nHeader + nPayload - nLeft, sizeof(pgno));
// unpack left val data from ovpages
while (pgno != 0) {
ret = tdbLoadOvflPage(&pgno, &ofp, pTxn, pBt);
if (ret < 0) {
return -1;
}
while (pgno != 0) {
ret = tdbLoadOvflPage(&pgno, &ofp, pTxn, pBt);
if (ret < 0) {
return -1;
}
ofpCell = tdbPageGetCell(ofp, 0);
ofpCell = tdbPageGetCell(ofp, 0);
if (nLeft <= ofp->maxLocal - sizeof(SPgno)) {
bytes = nLeft;
lastPage = 1;
} else {
bytes = ofp->maxLocal - sizeof(SPgno);
}
if (nLeft <= ofp->maxLocal - sizeof(SPgno)) {
bytes = nLeft;
lastPage = 1;
} else {
bytes = ofp->maxLocal - sizeof(SPgno);
}
memcpy(pDecoder->pVal + vLen - nLeft, ofpCell, bytes);
nLeft -= bytes;
memcpy(pDecoder->pVal + vLen - nLeft, ofpCell, bytes);
nLeft -= bytes;
memcpy(&pgno, ofpCell + bytes, sizeof(pgno));
memcpy(&pgno, ofpCell + bytes, sizeof(pgno));
}
} else {
int nLeftKey = kLen;
// load partial key and nextPgno
pDecoder->pKey = tdbRealloc(pDecoder->pKey, kLen);
if (pDecoder->pKey == NULL) {
return -1;
return -1;
}
TDB_CELLDECODER_SET_FREE_KEY(pDecoder);
memcpy(pDecoder->pKey, pCell + nHeader, nLocal - 4);
nLeft -= nLocal - 4;
nLeftKey -= nLocal -4;
nLeftKey -= nLocal - 4;
memcpy(&pgno, pCell + nHeader + nLocal - 4, sizeof(pgno));
int lastKeyPageSpace = 0;
// load left key & val to ovpages
while (pgno != 0) {
ret = tdbLoadOvflPage(&pgno, &ofp, pTxn, pBt);
if (ret < 0) {
return -1;
}
ofpCell = tdbPageGetCell(ofp, 0);
int lastKeyPage = 0;
if (nLeftKey <= maxLocal - sizeof(SPgno)) {
bytes = nLeftKey;
lastKeyPage = 1;
lastKeyPageSpace = ofp->maxLocal - sizeof(SPgno) - nLeftKey;
} else {
bytes = ofp->maxLocal - sizeof(SPgno);
}
// cpy key
memcpy(pDecoder->pKey + kLen - nLeftKey, ofpCell, bytes);
if (lastKeyPage) {
if (lastKeyPageSpace >= vLen) {
pDecoder->pVal = ofpCell + kLen -nLeftKey;
nLeft -= vLen;
pgno = 0;
} else {
// read partial val to local
pDecoder->pVal = tdbRealloc(pDecoder->pVal, vLen);
if (pDecoder->pVal == NULL) {
return -1;
}
TDB_CELLDECODER_SET_FREE_VAL(pDecoder);
memcpy(pDecoder->pVal, ofpCell + kLen -nLeftKey, lastKeyPageSpace);
nLeft -= lastKeyPageSpace;
}
}
memcpy(&pgno, ofpCell + bytes, sizeof(pgno));
nLeftKey -= bytes;
nLeft -= bytes;
ret = tdbLoadOvflPage(&pgno, &ofp, pTxn, pBt);
if (ret < 0) {
return -1;
}
ofpCell = tdbPageGetCell(ofp, 0);
int lastKeyPage = 0;
if (nLeftKey <= maxLocal - sizeof(SPgno)) {
bytes = nLeftKey;
lastKeyPage = 1;
lastKeyPageSpace = ofp->maxLocal - sizeof(SPgno) - nLeftKey;
} else {
bytes = ofp->maxLocal - sizeof(SPgno);
}
// cpy key
memcpy(pDecoder->pKey + kLen - nLeftKey, ofpCell, bytes);
if (lastKeyPage) {
if (lastKeyPageSpace >= vLen) {
pDecoder->pVal = ofpCell + kLen - nLeftKey;
nLeft -= vLen;
pgno = 0;
} else {
// read partial val to local
pDecoder->pVal = tdbRealloc(pDecoder->pVal, vLen);
if (pDecoder->pVal == NULL) {
return -1;
}
TDB_CELLDECODER_SET_FREE_VAL(pDecoder);
memcpy(pDecoder->pVal, ofpCell + kLen - nLeftKey, lastKeyPageSpace);
nLeft -= lastKeyPageSpace;
}
}
memcpy(&pgno, ofpCell + bytes, sizeof(pgno));
nLeftKey -= bytes;
nLeft -= bytes;
}
while (nLeft > 0) {
ret = tdbLoadOvflPage(&pgno, &ofp, pTxn, pBt);
if (ret < 0) {
return -1;
}
ofpCell = tdbPageGetCell(ofp, 0);
// load left val data to ovpages
lastPage = 0;
if (nLeft <= ofp->maxLocal - sizeof(SPgno)) {
bytes = nLeft;
lastPage = 1;
} else {
bytes = ofp->maxLocal - sizeof(SPgno);
}
if (lastPage) {
pgno = 0;
}
if (!pDecoder->pVal) {
pDecoder->pVal = tdbRealloc(pDecoder->pVal, vLen);
if (pDecoder->pVal == NULL) {
return -1;
}
TDB_CELLDECODER_SET_FREE_VAL(pDecoder);
}
memcpy(pDecoder->pVal, ofpCell + vLen - nLeft, bytes);
nLeft -= bytes;
memcpy(&pgno, ofpCell + vLen - nLeft + bytes, sizeof(pgno));
nLeft -= bytes;
ret = tdbLoadOvflPage(&pgno, &ofp, pTxn, pBt);
if (ret < 0) {
return -1;
}
ofpCell = tdbPageGetCell(ofp, 0);
// load left val data to ovpages
lastPage = 0;
if (nLeft <= ofp->maxLocal - sizeof(SPgno)) {
bytes = nLeft;
lastPage = 1;
} else {
bytes = ofp->maxLocal - sizeof(SPgno);
}
if (lastPage) {
pgno = 0;
}
if (!pDecoder->pVal) {
pDecoder->pVal = tdbRealloc(pDecoder->pVal, vLen);
if (pDecoder->pVal == NULL) {
return -1;
}
TDB_CELLDECODER_SET_FREE_VAL(pDecoder);
}
memcpy(pDecoder->pVal, ofpCell + vLen - nLeft, bytes);
nLeft -= bytes;
memcpy(&pgno, ofpCell + vLen - nLeft + bytes, sizeof(pgno));
nLeft -= bytes;
}
}
}
......@@ -1404,31 +1406,31 @@ static int tdbBtreeCellSize(const SPage *pPage, SCell *pCell, int dropOfp, TXN *
// free ofp pages' cells
if (dropOfp) {
int ret = 0;
SPgno pgno = *(SPgno *) (pCell + nHeader + nLocal - sizeof(SPgno));
int nLeft = nPayload - nLocal + sizeof(SPgno);
int ret = 0;
SPgno pgno = *(SPgno *)(pCell + nHeader + nLocal - sizeof(SPgno));
int nLeft = nPayload - nLocal + sizeof(SPgno);
SPage *ofp;
int bytes;
int bytes;
while (pgno != 0) {
ret = tdbLoadOvflPage(&pgno, &ofp, pTxn, pBt);
if (ret < 0) {
return -1;
}
ret = tdbLoadOvflPage(&pgno, &ofp, pTxn, pBt);
if (ret < 0) {
return -1;
}
SCell *ofpCell = tdbPageGetCell(ofp, 0);
SCell *ofpCell = tdbPageGetCell(ofp, 0);
if (nLeft <= ofp->maxLocal - sizeof(SPgno)) {
bytes = nLeft;
} else {
bytes = ofp->maxLocal - sizeof(SPgno);
}
if (nLeft <= ofp->maxLocal - sizeof(SPgno)) {
bytes = nLeft;
} else {
bytes = ofp->maxLocal - sizeof(SPgno);
}
memcpy(&pgno, ofpCell + bytes, sizeof(pgno));
memcpy(&pgno, ofpCell + bytes, sizeof(pgno));
tdbPagerReturnPage(pPage->pPager, ofp, pTxn);
tdbPagerReturnPage(pPage->pPager, ofp, pTxn);
nLeft -= bytes;
nLeft -= bytes;
}
}
......@@ -1932,7 +1934,7 @@ int tdbBtcUpsert(SBTC *pBtc, const void *pKey, int kLen, const void *pData, int
// alloc space
szBuf = kLen + nData + 14;
pBuf = tdbRealloc(pBtc->pBt->pBuf, pBtc->pBt->pageSize > szBuf ? szBuf : pBtc->pBt->pageSize);
pBuf = tdbRealloc(pBtc->pBt->pBuf, pBtc->pBt->pageSize > szBuf ? szBuf : pBtc->pBt->pageSize);
if (pBuf == NULL) {
ASSERT(0);
return -1;
......
source/libs/tdb/src/db/tdbPager.c
浏览文件 @ 06af0467
......@@ -98,7 +98,7 @@ int tdbPagerClose(SPager *pPager) {
return 0;
}
int tdbPagerOpenDB(SPager *pPager, SPgno *ppgno, bool toCreate) {
int tdbPagerOpenDB(SPager *pPager, SPgno *ppgno, bool toCreate, SBTree *pBt) {
SPgno pgno;
SPage *pPage;
int ret;
......@@ -110,25 +110,41 @@ int tdbPagerOpenDB(SPager *pPager, SPgno *ppgno, bool toCreate) {
}
{
// TODO: try to search the main DB to get the page number
// pgno = 0;
// TODO: try to search the main DB to get the page number
// pgno = 0;
}
// if (pgno == 0 && toCreate) {
// ret = tdbPagerAllocPage(pPager, &pPage, &pgno);
// if (ret < 0) {
// return -1;
// }
if (pgno == 0 && toCreate) {
// allocate a new child page
TXN txn;
tdbTxnOpen(&txn, 0, tdbDefaultMalloc, tdbDefaultFree, NULL, 0);
// // TODO: Need to zero the page
pPager->inTran = 1;
// ret = tdbPagerWrite(pPager, pPage);
// if (ret < 0) {
// return -1;
// }
// }
SBtreeInitPageArg zArg;
zArg.flags = 0x1 | 0x2; // root leaf node;
zArg.pBt = pBt;
ret = tdbPagerFetchPage(pPager, &pgno, &pPage, tdbBtreeInitPage, &zArg, &txn);
if (ret < 0) {
return -1;
}
// ret = tdbPagerAllocPage(pPager, &pPage, &pgno);
// if (ret < 0) {
// return -1;
//}
// TODO: Need to zero the page
ret = tdbPagerWrite(pPager, pPage);
if (ret < 0) {
return -1;
}
*ppgno = pgno;
tdbTxnClose(&txn);
}
*ppgno = pgno;
return 0;
}
......@@ -427,9 +443,9 @@ static int tdbPagerWritePageToDB(SPager *pPager, SPage *pPage) {
}
int tdbPagerRestore(SPager *pPager, SBTree *pBt) {
int ret = 0;
int ret = 0;
SPgno journalSize = 0;
u8 *pageBuf = NULL;
u8 *pageBuf = NULL;
tdb_fd_t jfd = tdbOsOpen(pPager->jFileName, TDB_O_RDWR, 0755);
if (jfd == NULL) {
......@@ -454,7 +470,7 @@ int tdbPagerRestore(SPager *pPager, SBTree *pBt) {
for (int pgIndex = 0; pgIndex < journalSize; ++pgIndex) {
// read pgno & the page from journal
SPgno pgno;
SPgno pgno;
SPage *pPage;
int ret = tdbOsRead(jfd, &pgno, sizeof(pgno));
......
source/libs/tdb/src/inc/tdbInt.h
浏览文件 @ 06af0467
......@@ -128,13 +128,13 @@ typedef struct SBtInfo {
#define TDB_CELLDECODER_FREE_VAL(pCellDecoder) ((pCellDecoder)->freeKV & TDB_CELLD_F_VAL)
typedef struct {
int kLen;
u8 *pKey;
int vLen;
u8 *pVal;
SPgno pgno;
u8 *pBuf;
u8 freeKV;
int kLen;
u8 *pKey;
int vLen;
u8 *pVal;
SPgno pgno;
u8 *pBuf;
u8 freeKV;
} SCellDecoder;
struct SBTC {
......@@ -184,7 +184,7 @@ int tdbBtcUpsert(SBTC *pBtc, const void *pKey, int kLen, const void *pData, int
int tdbPagerOpen(SPCache *pCache, const char *fileName, SPager **ppPager);
int tdbPagerClose(SPager *pPager);
int tdbPagerOpenDB(SPager *pPager, SPgno *ppgno, bool toCreate);
int tdbPagerOpenDB(SPager *pPager, SPgno *ppgno, bool toCreate, SBTree *pBt);
int tdbPagerWrite(SPager *pPager, SPage *pPage);
int tdbPagerBegin(SPager *pPager, TXN *pTxn);
int tdbPagerCommit(SPager *pPager, TXN *pTxn);
......@@ -192,7 +192,7 @@ int tdbPagerFetchPage(SPager *pPager, SPgno *ppgno, SPage **ppPage, int (*initP
TXN *pTxn);
void tdbPagerReturnPage(SPager *pPager, SPage *pPage, TXN *pTxn);
int tdbPagerAllocPage(SPager *pPager, SPgno *ppgno);
int tdbPagerRestore(SPager *pPager, SBTree *pBt);
int tdbPagerRestore(SPager *pPager, SBTree *pBt);
// tdbPCache.c ====================================
#define TDB_PCACHE_PAGE \
......@@ -314,19 +314,18 @@ static inline int tdbTryLockPage(tdb_spinlock_t *pLock) {
#define TDB_TRY_LOCK_PAGE(pPage) tdbTryLockPage(&((pPage)->lock))
// APIs
#define TDB_PAGE_TOTAL_CELLS(pPage) ((pPage)->nOverflow + (pPage)->pPageMethods->getCellNum(pPage))
#define TDB_PAGE_USABLE_SIZE(pPage) ((u8 *)(pPage)->pPageFtr - (pPage)->pCellIdx)
#define TDB_PAGE_FREE_SIZE(pPage) (*(pPage)->pPageMethods->getFreeBytes)(pPage)
#define TDB_PAGE_PGNO(pPage) ((pPage)->pgid.pgno)
#define TDB_BYTES_CELL_TAKEN(pPage, pCell) ((*(pPage)->xCellSize)(pPage, pCell, 0, NULL, NULL) + (pPage)->pPageMethods->szOffset)
#define TDB_PAGE_OFFSET_SIZE(pPage) ((pPage)->pPageMethods->szOffset)
#define TDB_PAGE_TOTAL_CELLS(pPage) ((pPage)->nOverflow + (pPage)->pPageMethods->getCellNum(pPage))
#define TDB_PAGE_USABLE_SIZE(pPage) ((u8 *)(pPage)->pPageFtr - (pPage)->pCellIdx)
#define TDB_PAGE_FREE_SIZE(pPage) (*(pPage)->pPageMethods->getFreeBytes)(pPage)
#define TDB_PAGE_PGNO(pPage) ((pPage)->pgid.pgno)
#define TDB_BYTES_CELL_TAKEN(pPage, pCell) \
((*(pPage)->xCellSize)(pPage, pCell, 0, NULL, NULL) + (pPage)->pPageMethods->szOffset)
#define TDB_PAGE_OFFSET_SIZE(pPage) ((pPage)->pPageMethods->szOffset)
int tdbPageCreate(int pageSize, SPage **ppPage, void *(*xMalloc)(void *, size_t), void *arg);
int tdbPageDestroy(SPage *pPage, void (*xFree)(void *arg, void *ptr), void *arg);
void tdbPageZero(SPage *pPage, u8 szAmHdr, int (*xCellSize)(const SPage *, SCell *, int,
TXN *, SBTree *pBt));
void tdbPageInit(SPage *pPage, u8 szAmHdr, int (*xCellSize)(const SPage *, SCell *, int,
TXN *, SBTree *pBt));
void tdbPageZero(SPage *pPage, u8 szAmHdr, int (*xCellSize)(const SPage *, SCell *, int, TXN *, SBTree *pBt));
void tdbPageInit(SPage *pPage, u8 szAmHdr, int (*xCellSize)(const SPage *, SCell *, int, TXN *, SBTree *pBt));
int tdbPageInsertCell(SPage *pPage, int idx, SCell *pCell, int szCell, u8 asOvfl);
int tdbPageDropCell(SPage *pPage, int idx, TXN *pTxn, SBTree *pBt);
int tdbPageUpdateCell(SPage *pPage, int idx, SCell *pCell, int szCell, TXN *pTxn, SBTree *pBt);
......
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