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more TDB

This commit is contained in:
Hongze Cheng 2022-02-28 06:50:40 +00:00
parent 59e7f147c3
commit b4a2bed4dd
2 changed files with 24 additions and 3 deletions
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11
source/libs/tdb/src/db/tdbDb.c
View File

@ -25,6 +25,7 @@ int tdbDbOpen(const char *fname, int keyLen, int valLen, FKeyComparator keyCmprF
SPFile *pFile; SPFile *pFile;
int ret; int ret;
char fFullName[TDB_FILENAME_LEN]; char fFullName[TDB_FILENAME_LEN];
SPage * pPage;
*ppDb = NULL; *ppDb = NULL;
@ -45,6 +46,16 @@ int tdbDbOpen(const char *fname, int keyLen, int valLen, FKeyComparator keyCmprF
} }
} }
ASSERT(pFile != NULL);
// TODO: Search if the DB already in the file
if (1 /*todo: db should be created*/) {
ret = tdbPFileAllocPage(pFile, &pPage);
if (ret < 0) {
return -1;
}
}
// pDb->pBt // pDb->pBt
ret = tdbBtreeOpen(&(pDb->pBt)); ret = tdbBtreeOpen(&(pDb->pBt));
if (ret < 0) { if (ret < 0) {

16
source/libs/tdb/src/db/tdbPFile.c
View File

@ -103,7 +103,7 @@ SPage *tdbPFileGet(SPFile *pFile, SPgno pgno) {
ASSERT(pPage->isLoad); ASSERT(pPage->isLoad);
return pPage; return pPage;
}
int tdbPFileWrite(SPFile *pFile, SPage *pPage) { int tdbPFileWrite(SPFile *pFile, SPage *pPage) {
// TODO: if the page is not in journal, write to journal // TODO: if the page is not in journal, write to journal
@ -112,8 +112,18 @@ int tdbPFileWrite(SPFile *pFile, SPage *pPage) {
} }
int tdbPFileAllocPage(SPFile *pFile, SPage **ppPage) { int tdbPFileAllocPage(SPFile *pFile, SPage **ppPage) {
// TODO SPage *pPage;
*ppPage = NULL; SPgno pgno;
if (1 /*TODO: no free page*/) {
pgno = ++pFile->dbFileSize;
pPage = tdbPFileGet(pFile, pgno);
ASSERT(pPage != NULL);
} else {
ASSERT(0);
}
*ppPage = pPage;
return 0; return 0;
} }