xxq250
/
homework-jianmu
1
0
Fork 0
Code Issues Pull Requests 1 Actions Packages Projects Releases Wiki Activity

more

This commit is contained in:
Hongze Cheng 2022-02-23 10:09:04 +00:00
parent 815233ae33
commit 61e6faaf75
3 changed files with 43 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
source/libs/tdb/src/db/tdbBtree.c
View File

@ -25,8 +25,13 @@ struct SBTree {
struct SBtCursor {
SBTree *pBt;
int8_t iPage;
};
typedef struct SBPage {
/* TODO */
} SBPage;
int tdbBtreeOpen(SPgno root, SBTree **ppBt) {
*ppBt = NULL;
/* TODO */
@ -38,6 +43,25 @@ int tdbBtreeClose(SBTree *pBt) {
return 0;
}
int tdbBtreeCursor(SBTree *pBt, SBtCursor *pCur) {
pCur->pBt = pBt;
pCur->iPage = -1;
return 0;
}
int tdbBtreeCursorMoveTo(SBtCursor *pCur) {
/* TODO */
return 0;
}
static int tdbBtreeCursorMoveToRoot(SBtCursor *pCur) {
SPFile *pFile = pCur->pBt->pFile;
tdbPFileGet(pFile, pCur->pBt->root);
/* TODO */
return 0;
}
#if 0
struct SBtCursor {
SBTree *pBtree;

13
source/libs/tdb/src/db/tdbPFile.c
View File

@ -70,6 +70,19 @@ int tdbPFileClose(SPFile *pFile) {
return 0;
}
SPgHdr *tdbPFileGet(SPFile *pFile, SPgno pgno) {
SPCache *pCache;
SPgid pgid;
SPgHdr * pPage;
pCache = pFile->pCache;
pPage = tdbPCacheFetch(pCache, &pgid, true);
tdbPCacheFetchFinish(pCache, pPage);
return pPage;
}
int tdbPFileBegin(SPFile *pFile) {
// TODO
return 0;

12
source/libs/tdb/src/inc/tdbPFile.h
View File

@ -22,12 +22,12 @@ extern "C" {
typedef struct SPFile SPFile;
int tdbPFileOpen(SPCache *pCache, const char *fileName, SPFile **ppFile);
int tdbPFileClose(SPFile *pFile);
void *tdbPFileGet(SPFile *pFile, SPgno pgno);
int tdbPFileBegin(SPFile *pFile);
int tdbPFileCommit(SPFile *pFile);
int tdbPFileRollback(SPFile *pFile);
int tdbPFileOpen(SPCache *pCache, const char *fileName, SPFile **ppFile);
int tdbPFileClose(SPFile *pFile);
SPgHdr *tdbPFileGet(SPFile *pFile, SPgno pgno);
int tdbPFileBegin(SPFile *pFile);
int tdbPFileCommit(SPFile *pFile);
int tdbPFileRollback(SPFile *pFile);
#ifdef __cplusplus
}