89 lines
2.8 KiB
C
89 lines
2.8 KiB
C
/*
|
|
* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
|
|
*
|
|
* This program is free software: you can use, redistribute, and/or modify
|
|
* it under the terms of the GNU Affero General Public License, version 3
|
|
* or later ("AGPL"), as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE.
|
|
*
|
|
* You should have received a copy of the GNU Affero General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef _TD_TDB_H_
|
|
#define _TD_TDB_H_
|
|
|
|
#include "os.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
typedef int (*tdb_cmpr_fn_t)(const void *pKey1, int kLen1, const void *pKey2, int kLen2);
|
|
|
|
// exposed types
|
|
typedef struct STDB TDB;
|
|
typedef struct STTB TTB;
|
|
typedef struct STBC TBC;
|
|
typedef struct STxn TXN;
|
|
|
|
// TDB
|
|
int tdbOpen(const char *rootDir, int szPage, int pages, TDB **ppDb);
|
|
int tdbClose(TDB *pDb);
|
|
int tdbBegin(TDB *pDb, TXN *pTxn);
|
|
int tdbCommit(TDB *pDb, TXN *pTxn);
|
|
|
|
// TTB
|
|
int tdbTbOpen(const char *fname, int keyLen, int valLen, tdb_cmpr_fn_t keyCmprFn, TDB *pEnv, TTB **ppTb);
|
|
int tdbTbClose(TTB *pTb);
|
|
int tdbTbDrop(TTB *pTb);
|
|
int tdbTbInsert(TTB *pTb, const void *pKey, int keyLen, const void *pVal, int valLen, TXN *pTxn);
|
|
int tdbTbDelete(TTB *pTb, const void *pKey, int kLen, TXN *pTxn);
|
|
int tdbTbUpsert(TTB *pTb, const void *pKey, int kLen, const void *pVal, int vLen, TXN *pTxn);
|
|
int tdbTbGet(TTB *pTb, const void *pKey, int kLen, void **ppVal, int *vLen);
|
|
int tdbTbPGet(TTB *pTb, const void *pKey, int kLen, void **ppKey, int *pkLen, void **ppVal, int *vLen);
|
|
|
|
// TBC
|
|
int tdbTbcOpen(TTB *pTb, TBC **ppTbc, TXN *pTxn);
|
|
int tdbTbcClose(TBC *pTbc);
|
|
int tdbTbcIsValid(TBC *pTbc);
|
|
int tdbTbcMoveTo(TBC *pTbc, const void *pKey, int kLen, int *c);
|
|
int tdbTbcMoveToFirst(TBC *pTbc);
|
|
int tdbTbcMoveToLast(TBC *pTbc);
|
|
int tdbTbcMoveToNext(TBC *pTbc);
|
|
int tdbTbcMoveToPrev(TBC *pTbc);
|
|
int tdbTbcGet(TBC *pTbc, const void **ppKey, int *pkLen, const void **ppVal, int *pvLen);
|
|
int tdbTbcDelete(TBC *pTbc);
|
|
int tdbTbcNext(TBC *pTbc, void **ppKey, int *kLen, void **ppVal, int *vLen);
|
|
int tdbTbcUpsert(TBC *pTbc, const void *pKey, int nKey, const void *pData, int nData, int insert);
|
|
|
|
// TXN
|
|
#define TDB_TXN_WRITE 0x1
|
|
#define TDB_TXN_READ_UNCOMMITTED 0x2
|
|
|
|
int tdbTxnOpen(TXN *pTxn, int64_t txnid, void *(*xMalloc)(void *, size_t), void (*xFree)(void *, void *), void *xArg,
|
|
int flags);
|
|
int tdbTxnClose(TXN *pTxn);
|
|
|
|
// other
|
|
void tdbFree(void *);
|
|
|
|
struct STxn {
|
|
int flags;
|
|
int64_t txnId;
|
|
void *(*xMalloc)(void *, size_t);
|
|
void (*xFree)(void *, void *);
|
|
void *xArg;
|
|
};
|
|
|
|
// error code
|
|
enum { TDB_CODE_SUCCESS = 0, TDB_CODE_MAX };
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /*_TD_TDB_H_*/ |