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

design dbc api

This commit is contained in:
Hongze Cheng 2022-03-25 06:15:21 +00:00
parent f4359a6fb3
commit 9ffdf09986
3 changed files with 44 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
source/libs/tdb/src/db/tdbDb.c
View File

@ -90,4 +90,19 @@ int tdbDbInsert(STDB *pDb, const void *pKey, int keyLen, const void *pVal, int v
int tdbDbGet(STDB *pDb, const void *pKey, int kLen, void **ppVal, int *vLen) { int tdbDbGet(STDB *pDb, const void *pKey, int kLen, void **ppVal, int *vLen) {
return tdbBtreeGet(pDb->pBt, pKey, kLen, ppVal, vLen); return tdbBtreeGet(pDb->pBt, pKey, kLen, ppVal, vLen);
}
int tdbDbcOpen(STDB *pDb, STDBC **ppTDbc) {
// TODO
return 0;
}
int tdbDbNext(STDBC *pDbc, void **ppKey, int *kLen, void **ppVal, int *vLen) {
// TODO
return 0;
}
int tdbDbcClose(STDBC *pDbc) {
// TODO
return 0;
} }

8
source/libs/tdb/src/inc/tdbDb.h
View File

@ -21,14 +21,20 @@ extern "C" {
#endif #endif
typedef struct STDB STDB; typedef struct STDB STDB;
typedef struct STDbC STDbC; typedef struct STDBC STDBC;
// STDB
int tdbDbOpen(const char *fname, int keyLen, int valLen, FKeyComparator keyCmprFn, STEnv *pEnv, STDB **ppDb); int tdbDbOpen(const char *fname, int keyLen, int valLen, FKeyComparator keyCmprFn, STEnv *pEnv, STDB **ppDb);
int tdbDbClose(STDB *pDb); int tdbDbClose(STDB *pDb);
int tdbDbDrop(STDB *pDb); int tdbDbDrop(STDB *pDb);
int tdbDbInsert(STDB *pDb, const void *pKey, int keyLen, const void *pVal, int valLen); int tdbDbInsert(STDB *pDb, const void *pKey, int keyLen, const void *pVal, int valLen);
int tdbDbGet(STDB *pDb, const void *pKey, int kLen, void **ppVal, int *vLen); int tdbDbGet(STDB *pDb, const void *pKey, int kLen, void **ppVal, int *vLen);
// STDBC
int tdbDbcOpen(STDB *pDb, STDBC **ppTDbc);
int tdbDbNext(STDBC *pDbc, void **ppKey, int *kLen, void **ppVal, int *vLen);
int tdbDbcClose(STDBC *pDbc);
#ifdef __cplusplus #ifdef __cplusplus
} }
#endif #endif

25
source/libs/tdb/test/tdbTest.cpp
View File

@ -48,9 +48,28 @@ TEST(tdb_test, simple_test) {
TDB_FREE(pVal); TDB_FREE(pVal);
} }
{ // Loop to query the data { // Iterate to query the DB data
// STDbC *pDBC; STDBC *pDBC;
// tdbDBNext(pDBC, p) void *pKey = NULL;
void *pVal = NULL;
int vLen, kLen;
int count = 0;
ret = tdbDbcOpen(pDb, &pDBC);
GTEST_ASSERT_EQ(ret, 0);
for (;;) {
ret = tdbDbNext(pDBC, &pKey, &kLen, &pVal, &vLen);
if (ret < 0) break;
count++;
}
GTEST_ASSERT_EQ(count, nData);
tdbDbcClose(pDBC);
TDB_FREE(pKey);
TDB_FREE(pVal);
} }
} }