113 lines
3.8 KiB
C
113 lines
3.8 KiB
C
/*
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* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
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*
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* This program is free software: you can use, redistribute, and/or modify
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* it under the terms of the GNU Affero General Public License, version 3
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* or later ("AGPL"), as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _TD_TDB_H_
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#define _TD_TDB_H_
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#include "os.h"
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#include "tdbOs.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef int (*tdb_cmpr_fn_t)(const void *pKey1, int32_t kLen1, const void *pKey2, int32_t kLen2);
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// exposed types
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typedef struct STDB TDB;
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typedef struct STTB TTB;
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typedef struct STBC TBC;
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typedef struct STxn TXN;
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// TDB
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int32_t tdbOpen(const char *dbname, int szPage, int pages, TDB **ppDb, int8_t rollback);
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int32_t tdbClose(TDB *pDb);
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int32_t tdbBegin(TDB *pDb, TXN **pTxn, void *(*xMalloc)(void *, size_t), void (*xFree)(void *, void *), void *xArg,
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int flags);
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int32_t tdbCommit(TDB *pDb, TXN *pTxn);
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int32_t tdbPostCommit(TDB *pDb, TXN *pTxn);
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int32_t tdbPrepareAsyncCommit(TDB *pDb, TXN *pTxn);
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int32_t tdbAbort(TDB *pDb, TXN *pTxn);
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int32_t tdbAlter(TDB *pDb, int pages);
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// TTB
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int32_t tdbTbOpen(const char *tbname, int keyLen, int valLen, tdb_cmpr_fn_t keyCmprFn, TDB *pEnv, TTB **ppTb,
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int8_t rollback);
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int32_t tdbTbClose(TTB *pTb);
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bool tdbTbExist(const char *tbname, TDB *pEnv);
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int tdbTbDropByName(const char *tbname, TDB *pEnv, TXN* pTxn);
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int32_t tdbTbDrop(TTB *pTb);
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int32_t tdbTbInsert(TTB *pTb, const void *pKey, int keyLen, const void *pVal, int valLen, TXN *pTxn);
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int32_t tdbTbDelete(TTB *pTb, const void *pKey, int kLen, TXN *pTxn);
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int32_t tdbTbUpsert(TTB *pTb, const void *pKey, int kLen, const void *pVal, int vLen, TXN *pTxn);
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int32_t tdbTbGet(TTB *pTb, const void *pKey, int kLen, void **ppVal, int *vLen);
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int32_t tdbTbPGet(TTB *pTb, const void *pKey, int kLen, void **ppKey, int *pkLen, void **ppVal, int *vLen);
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int32_t tdbTbTraversal(TTB *pTb, void *data,
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int32_t (*func)(const void *pKey, int keyLen, const void *pVal, int valLen, void *data));
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// TBC
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int32_t tdbTbcOpen(TTB *pTb, TBC **ppTbc, TXN *pTxn);
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int32_t tdbTbcClose(TBC *pTbc);
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int32_t tdbTbcIsValid(TBC *pTbc);
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int32_t tdbTbcMoveTo(TBC *pTbc, const void *pKey, int kLen, int *c);
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int32_t tdbTbcMoveToFirst(TBC *pTbc);
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int32_t tdbTbcMoveToLast(TBC *pTbc);
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int32_t tdbTbcMoveToNext(TBC *pTbc);
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int32_t tdbTbcMoveToPrev(TBC *pTbc);
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int32_t tdbTbcGet(TBC *pTbc, const void **ppKey, int *pkLen, const void **ppVal, int *pvLen);
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int32_t tdbTbcDelete(TBC *pTbc);
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int32_t tdbTbcNext(TBC *pTbc, void **ppKey, int *kLen, void **ppVal, int *vLen);
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int32_t tdbTbcPrev(TBC *pTbc, void **ppKey, int *kLen, void **ppVal, int *vLen);
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int32_t tdbTbcUpsert(TBC *pTbc, const void *pKey, int nKey, const void *pData, int nData, int insert);
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// TXN
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#define TDB_TXN_WRITE 0x1
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#define TDB_TXN_READ_UNCOMMITTED 0x2
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int32_t tdbTxnOpen(TXN *pTxn, int64_t txnid, void *(*xMalloc)(void *, size_t), void (*xFree)(void *, void *),
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void *xArg, int flags);
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int32_t tdbTxnCloseImpl(TXN *pTxn);
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#define tdbTxnClose(pTxn) \
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do { \
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tdbTxnCloseImpl(pTxn); \
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(pTxn) = NULL; \
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} while (0)
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// other
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void tdbFree(void *);
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typedef struct hashset_st *hashset_t;
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void hashset_destroy(hashset_t set);
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struct STxn {
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int flags;
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int64_t txnId;
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void *(*xMalloc)(void *, size_t);
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void (*xFree)(void *, void *);
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void *xArg;
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tdb_fd_t jfd;
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hashset_t jPageSet;
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};
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// error code
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enum { TDB_CODE_SUCCESS = 0, TDB_CODE_MAX };
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#ifdef __cplusplus
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}
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#endif
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#endif /*_TD_TDB_H_*/
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