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refact

This commit is contained in:
Hongze Cheng 2022-02-25 03:34:38 +00:00
parent 2d304989aa
commit cad1902337
5 changed files with 62 additions and 62 deletions
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16
source/libs/tdb/src/db/tdbBtree.c
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@ -28,15 +28,15 @@ struct SBTree {
struct SBtCursor { struct SBtCursor {
SBTree * pBt; SBTree * pBt;
i8 iPage; i8 iPage;
SMemPage *pPage; // SMemPage *pPage;
SMemPage *apPage[BTREE_MAX_DEPTH + 1]; // SMemPage *apPage[BTREE_MAX_DEPTH + 1];
}; };
typedef struct SMemPage { // typedef struct SMemPage {
u8 isInit; // u8 isInit;
u8 isLeaf; // u8 isLeaf;
SPgno pgno; // SPgno pgno;
} SMemPage; // } SMemPage;
int tdbBtreeOpen(SPgno root, SBTree **ppBt) { int tdbBtreeOpen(SPgno root, SBTree **ppBt) {
*ppBt = NULL; *ppBt = NULL;
@ -63,7 +63,7 @@ int tdbBtreeCursorMoveTo(SBtCursor *pCur) {
static int tdbBtreeCursorMoveToRoot(SBtCursor *pCur) { static int tdbBtreeCursorMoveToRoot(SBtCursor *pCur) {
SPFile *pFile; SPFile *pFile;
SPgHdr *pPage; SPage * pPage;
pFile = pCur->pBt->pFile; pFile = pCur->pBt->pFile;

48
source/libs/tdb/src/db/tdbPCache.c
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@ -20,15 +20,15 @@ struct SPCache {
int extraSize; int extraSize;
pthread_mutex_t mutex; pthread_mutex_t mutex;
int nFree; int nFree;
SPgHdr * pFree; SPage * pFree;
int nPage; int nPage;
int nHash; int nHash;
SPgHdr ** pgHash; SPage ** pgHash;
int nRecyclable; int nRecyclable;
SPgHdr lru; SPage lru;
int nDirty; int nDirty;
SPgHdr * pDirty; SPage * pDirty;
SPgHdr * pDirtyTail; SPage * pDirtyTail;
}; };
#define PCACHE_PAGE_HASH(pPgid) \ #define PCACHE_PAGE_HASH(pPgid) \
@ -44,15 +44,15 @@ static void tdbPCacheClearLock(SPCache *pCache);
static void tdbPCacheLock(SPCache *pCache); static void tdbPCacheLock(SPCache *pCache);
static void tdbPCacheUnlock(SPCache *pCache); static void tdbPCacheUnlock(SPCache *pCache);
static bool tdbPCacheLocked(SPCache *pCache); static bool tdbPCacheLocked(SPCache *pCache);
static SPgHdr *tdbPCacheFetchImpl(SPCache *pCache, const SPgid *pPgid, bool alcNewPage); static SPage *tdbPCacheFetchImpl(SPCache *pCache, const SPgid *pPgid, bool alcNewPage);
static void tdbPCachePinPage(SPgHdr *pPage); static void tdbPCachePinPage(SPage *pPage);
static void tdbPCacheRemovePageFromHash(SPgHdr *pPage); static void tdbPCacheRemovePageFromHash(SPage *pPage);
static void tdbPCacheAddPageToHash(SPgHdr *pPage); static void tdbPCacheAddPageToHash(SPage *pPage);
int tdbPCacheOpen(int pageSize, int cacheSize, int extraSize, SPCache **ppCache) { int tdbPCacheOpen(int pageSize, int cacheSize, int extraSize, SPCache **ppCache) {
SPCache *pCache; SPCache *pCache;
void * pPtr; void * pPtr;
SPgHdr * pPgHdr; SPage * pPgHdr;
pCache = (SPCache *)calloc(1, sizeof(*pCache)); pCache = (SPCache *)calloc(1, sizeof(*pCache));
if (pCache == NULL) { if (pCache == NULL) {
@ -76,8 +76,8 @@ int tdbPCacheClose(SPCache *pCache) {
return 0; return 0;
} }
SPgHdr *tdbPCacheFetch(SPCache *pCache, const SPgid *pPgid, bool alcNewPage) { SPage *tdbPCacheFetch(SPCache *pCache, const SPgid *pPgid, bool alcNewPage) {
SPgHdr *pPage; SPage *pPage;
tdbPCacheLock(pCache); tdbPCacheLock(pCache);
pPage = tdbPCacheFetchImpl(pCache, pPgid, alcNewPage); pPage = tdbPCacheFetchImpl(pCache, pPgid, alcNewPage);
@ -86,12 +86,12 @@ SPgHdr *tdbPCacheFetch(SPCache *pCache, const SPgid *pPgid, bool alcNewPage) {
return pPage; return pPage;
} }
void tdbPCacheFetchFinish(SPCache *pCache, SPgHdr *pPage) { void tdbPCacheFetchFinish(SPCache *pCache, SPage *pPage) {
/* TODO */ /* TODO */
pPage->nRef++; // TODO: do we need atomic operation??? pPage->nRef++; // TODO: do we need atomic operation???
} }
void tdbPCacheRelease(SPgHdr *pHdr) { void tdbPCacheRelease(SPage *pHdr) {
// TODO // TODO
} }
@ -109,8 +109,8 @@ static bool tdbPCacheLocked(SPCache *pCache) {
return true; return true;
} }
static SPgHdr *tdbPCacheFetchImpl(SPCache *pCache, const SPgid *pPgid, bool alcNewPage) { static SPage *tdbPCacheFetchImpl(SPCache *pCache, const SPgid *pPgid, bool alcNewPage) {
SPgHdr *pPage; SPage *pPage;
// 1. Search the hash table // 1. Search the hash table
pPage = pCache->pgHash[PCACHE_PAGE_HASH(pPgid) % pCache->nHash]; pPage = pCache->pgHash[PCACHE_PAGE_HASH(pPgid) % pCache->nHash];
@ -157,7 +157,7 @@ static SPgHdr *tdbPCacheFetchImpl(SPCache *pCache, const SPgid *pPgid, bool alcN
return pPage; return pPage;
} }
static void tdbPCachePinPage(SPgHdr *pPage) { static void tdbPCachePinPage(SPage *pPage) {
SPCache *pCache; SPCache *pCache;
pCache = pPage->pCache; pCache = pPage->pCache;
@ -170,9 +170,9 @@ static void tdbPCachePinPage(SPgHdr *pPage) {
} }
} }
static void tdbPCacheRemovePageFromHash(SPgHdr *pPage) { static void tdbPCacheRemovePageFromHash(SPage *pPage) {
SPCache *pCache; SPCache *pCache;
SPgHdr **ppPage; SPage ** ppPage;
int h; int h;
pCache = pPage->pCache; pCache = pPage->pCache;
@ -185,7 +185,7 @@ static void tdbPCacheRemovePageFromHash(SPgHdr *pPage) {
pCache->nPage--; pCache->nPage--;
} }
static void tdbPCacheAddPageToHash(SPgHdr *pPage) { static void tdbPCacheAddPageToHash(SPage *pPage) {
SPCache *pCache; SPCache *pCache;
int h; int h;
@ -199,7 +199,7 @@ static void tdbPCacheAddPageToHash(SPgHdr *pPage) {
} }
static int tdbPCacheOpenImpl(SPCache *pCache) { static int tdbPCacheOpenImpl(SPCache *pCache) {
SPgHdr *pPage; SPage *pPage;
u8 * pPtr; u8 * pPtr;
int tsize; int tsize;
@ -209,14 +209,14 @@ static int tdbPCacheOpenImpl(SPCache *pCache) {
pCache->nFree = 0; pCache->nFree = 0;
pCache->pFree = NULL; pCache->pFree = NULL;
for (int i = 0; i < pCache->cacheSize; i++) { for (int i = 0; i < pCache->cacheSize; i++) {
tsize = pCache->pageSize + sizeof(SPgHdr) + pCache->extraSize; tsize = pCache->pageSize + sizeof(SPage) + pCache->extraSize;
pPtr = (u8 *)calloc(1, tsize); pPtr = (u8 *)calloc(1, tsize);
if (pPtr == NULL) { if (pPtr == NULL) {
// TODO // TODO
return -1; return -1;
} }
pPage = (SPgHdr *)(&(pPtr[pCache->pageSize])); pPage = (SPage *)(&(pPtr[pCache->pageSize]));
pPage->pData = (void *)pPtr; pPage->pData = (void *)pPtr;
pPage->pExtra = (void *)(&(pPage[1])); pPage->pExtra = (void *)(&(pPage[1]));
// pPage->pgid = 0; // pPage->pgid = 0;
@ -235,7 +235,7 @@ static int tdbPCacheOpenImpl(SPCache *pCache) {
// Open the hash table // Open the hash table
pCache->nPage = 0; pCache->nPage = 0;
pCache->nHash = pCache->cacheSize; pCache->nHash = pCache->cacheSize;
pCache->pgHash = (SPgHdr **)calloc(pCache->nHash, sizeof(SPgHdr *)); pCache->pgHash = (SPage **)calloc(pCache->nHash, sizeof(SPage *));
if (pCache->pgHash == NULL) { if (pCache->pgHash == NULL) {
// TODO // TODO
return -1; return -1;

8
source/libs/tdb/src/db/tdbPFile.c
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@ -27,7 +27,7 @@ struct SPFile {
SPgno dbOrigSize; SPgno dbOrigSize;
}; };
static int tdbPFileReadPage(SPFile *pFile, SPgHdr *pPage); static int tdbPFileReadPage(SPFile *pFile, SPage *pPage);
int tdbPFileOpen(SPCache *pCache, const char *fileName, SPFile **ppFile) { int tdbPFileOpen(SPCache *pCache, const char *fileName, SPFile **ppFile) {
uint8_t *pPtr; uint8_t *pPtr;
@ -73,9 +73,9 @@ int tdbPFileClose(SPFile *pFile) {
return 0; return 0;
} }
SPgHdr *tdbPFileGet(SPFile *pFile, SPgno pgno) { SPage *tdbPFileGet(SPFile *pFile, SPgno pgno) {
SPgid pgid; SPgid pgid;
SPgHdr *pPage; SPage *pPage;
memcpy(pgid.fileid, pFile->fid, TDB_FILE_ID_LEN); memcpy(pgid.fileid, pFile->fid, TDB_FILE_ID_LEN);
pgid.pgno = pgno; pgid.pgno = pgno;
@ -120,7 +120,7 @@ int tdbPFileRollback(SPFile *pFile) {
return 0; return 0;
} }
static int tdbPFileReadPage(SPFile *pFile, SPgHdr *pPage) { static int tdbPFileReadPage(SPFile *pFile, SPage *pPage) {
i64 offset; i64 offset;
int ret; int ret;

18
source/libs/tdb/src/inc/tdbPCache.h
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@ -21,9 +21,9 @@ extern "C" {
#endif #endif
typedef struct SPCache SPCache; typedef struct SPCache SPCache;
typedef struct SPgHdr SPgHdr; typedef struct SPage SPage;
struct SPgHdr { struct SPage {
void * pData; void * pData;
void * pExtra; void * pExtra;
SPgid pgid; SPgid pgid;
@ -32,17 +32,17 @@ struct SPgHdr {
u8 isLoad; u8 isLoad;
i32 nRef; i32 nRef;
SPCache *pCache; SPCache *pCache;
SPgHdr * pFreeNext; SPage * pFreeNext;
SPgHdr * pHashNext; SPage * pHashNext;
SPgHdr * pLruNext; SPage * pLruNext;
SPgHdr * pLruPrev; SPage * pLruPrev;
}; };
int tdbPCacheOpen(int pageSize, int cacheSize, int extraSize, SPCache **ppCache); int tdbPCacheOpen(int pageSize, int cacheSize, int extraSize, SPCache **ppCache);
int tdbPCacheClose(SPCache *pCache); int tdbPCacheClose(SPCache *pCache);
SPgHdr *tdbPCacheFetch(SPCache *pCache, const SPgid *pPgid, bool alcNewPage); SPage *tdbPCacheFetch(SPCache *pCache, const SPgid *pPgid, bool alcNewPage);
void tdbPCacheFetchFinish(SPCache *pCache, SPgHdr *pPage); void tdbPCacheFetchFinish(SPCache *pCache, SPage *pPage);
void tdbPCacheRelease(SPgHdr *pHdr); void tdbPCacheRelease(SPage *pHdr);
#ifdef __cplusplus #ifdef __cplusplus
} }

2
source/libs/tdb/src/inc/tdbPFile.h
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@ -24,7 +24,7 @@ typedef struct SPFile SPFile;
int tdbPFileOpen(SPCache *pCache, const char *fileName, SPFile **ppFile); int tdbPFileOpen(SPCache *pCache, const char *fileName, SPFile **ppFile);
int tdbPFileClose(SPFile *pFile); int tdbPFileClose(SPFile *pFile);
SPgHdr *tdbPFileGet(SPFile *pFile, SPgno pgno); SPage *tdbPFileGet(SPFile *pFile, SPgno pgno);
int tdbPFileBegin(SPFile *pFile); int tdbPFileBegin(SPFile *pFile);
int tdbPFileCommit(SPFile *pFile); int tdbPFileCommit(SPFile *pFile);
int tdbPFileRollback(SPFile *pFile); int tdbPFileRollback(SPFile *pFile);