62 lines
1.9 KiB
C
62 lines
1.9 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_TKV_H_
|
|
#define _TD_TKV_H_
|
|
|
|
#include "os.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
// Types exported
|
|
typedef struct STkvDb STkvDb;
|
|
typedef struct STkvOpts STkvOpts;
|
|
typedef struct STkvCache STkvCache;
|
|
typedef struct STkvReadOpts STkvReadOpts;
|
|
typedef struct STkvWriteOpts STkvWriteOpts;
|
|
|
|
// DB operations
|
|
STkvDb *tkvOpen(const STkvOpts *options, const char *path);
|
|
void tkvClose(STkvDb *db);
|
|
void tkvPut(STkvDb *db, const STkvWriteOpts *, const char *key, size_t keylen, const char *val, size_t vallen);
|
|
char * tkvGet(STkvDb *db, const STkvReadOpts *, const char *key, size_t keylen, size_t *vallen);
|
|
void tkvCommit(STkvDb *db);
|
|
|
|
// DB options
|
|
STkvOpts *tkvOptsCreate();
|
|
void tkvOptsDestroy(STkvOpts *);
|
|
void tkvOptionsSetCache(STkvOpts *, STkvCache *);
|
|
void tkvOptsSetCreateIfMissing(STkvOpts *, unsigned char);
|
|
|
|
// DB cache
|
|
typedef enum { TKV_LRU_CACHE = 0, TKV_LFU_CACHE = 1 } ETkvCacheType;
|
|
STkvCache *tkvCacheCreate(size_t capacity, ETkvCacheType type);
|
|
void tkvCacheDestroy(STkvCache *);
|
|
|
|
// STkvReadOpts
|
|
STkvReadOpts *tkvReadOptsCreate();
|
|
void tkvReadOptsDestroy(STkvReadOpts *);
|
|
|
|
// STkvWriteOpts
|
|
STkvWriteOpts *tkvWriteOptsCreate();
|
|
void tkvWriteOptsDestroy(STkvWriteOpts *);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /*_TD_TKV_H_*/ |