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more tkv

This commit is contained in:
Hongze Cheng 2022-01-10 11:55:41 +00:00
parent 5150911067
commit 358b5641aa
4 changed files with 44 additions and 73 deletions
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64
include/libs/tkv/tkv.h
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@ -1,64 +0,0 @@
/*
* 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_
#if 0
#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
#endif /*_TD_TKV_H_*/

11
source/libs/tkv/inc/tDiskMgr.h
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@ -26,11 +26,12 @@ extern "C" {
typedef struct SDiskMgr SDiskMgr;
int tdmOpen(SDiskMgr **ppDiskMgr, const char *fname, uint16_t pgsize);
int tdmClose(SDiskMgr *pDiskMgr);
int tdmReadPage(SDiskMgr *pDiskMgr, pgid_t pgid, void *pData);
int tdmWritePage(SDiskMgr *pDiskMgr, pgid_t pgid, const void *pData);
int32_t tdmAllocPage(SDiskMgr *pDiskMgr);
int tdmOpen(SDiskMgr **ppDiskMgr, const char *fname, uint16_t pgsize);
int tdmClose(SDiskMgr *pDiskMgr);
int tdmReadPage(SDiskMgr *pDiskMgr, pgid_t pgid, void *pData);
int tdmWritePage(SDiskMgr *pDiskMgr, pgid_t pgid, const void *pData);
int tdmFlush(SDiskMgr *pDiskMgr);
pgid_t tdmAllocPage(SDiskMgr *pDiskMgr);
#ifdef __cplusplus
}

32
source/libs/tkv/inc/tkv.h Normal file
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@ -0,0 +1,32 @@
/*
* 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_
#ifdef __cplusplus
extern "C" {
#endif
// SKey
typedef struct SKey {
void *bdata;
} SKey, SValue;
#ifdef __cplusplus
}
#endif
#endif /*_TD_TKV_H_*/

10
source/libs/tkv/src/tDiskMgr.c
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@ -16,10 +16,10 @@
#include "tDiskMgr.h"
struct SDiskMgr {
const char *fname;
uint16_t pgsize;
FileFd fd;
int32_t npgid;
char * fname;
uint16_t pgsize;
FileFd fd;
pgid_t npgid;
};
#define PAGE_OFFSET(PGID, PGSIZE) ((PGID) * (PGSIZE))
@ -69,4 +69,6 @@ int tdmWritePage(SDiskMgr *pDiskMgr, pgid_t pgid, const void *pData) {
return 0;
}
int tdmFlush(SDiskMgr *pDiskMgr) { return taosFsyncFile(pDiskMgr->fd); }
int32_t tdmAllocPage(SDiskMgr *pDiskMgr) { return pDiskMgr->npgid++; }