homework-jianmu/source/dnode/vnode/inc/meta.h

86 lines
2.7 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_META_H_
#define _TD_META_H_
#include "tmallocator.h"
#include "tmsg.h"
#include "trow.h"
#ifdef __cplusplus
extern "C" {
#endif
#define META_SUPER_TABLE TD_SUPER_TABLE
#define META_CHILD_TABLE TD_CHILD_TABLE
#define META_NORMAL_TABLE TD_NORMAL_TABLE
// Types exported
typedef struct SMeta SMeta;
typedef struct SMetaCfg {
/// LRU cache size
uint64_t lruSize;
} SMetaCfg;
typedef struct SMTbCursor SMTbCursor;
typedef struct SMCtbCursor SMCtbCursor;
typedef struct SMSmaCursor SMSmaCursor;
typedef SVCreateTbReq STbCfg;
typedef SVCreateTSmaReq SSmaCfg;
// SMeta operations
SMeta * metaOpen(const char *path, const SMetaCfg *pMetaCfg, SMemAllocatorFactory *pMAF);
void metaClose(SMeta *pMeta);
void metaRemove(const char *path);
int metaCreateTable(SMeta *pMeta, STbCfg *pTbCfg);
int metaDropTable(SMeta *pMeta, tb_uid_t uid);
int metaCommit(SMeta *pMeta);
int32_t metaCreateTSma(SMeta *pMeta, SSmaCfg *pCfg);
int32_t metaDropTSma(SMeta *pMeta, char *indexName);
// For Query
STbCfg * metaGetTbInfoByUid(SMeta *pMeta, tb_uid_t uid);
STbCfg * metaGetTbInfoByName(SMeta *pMeta, char *tbname, tb_uid_t *uid);
SSchemaWrapper *metaGetTableSchema(SMeta *pMeta, tb_uid_t uid, int32_t sver, bool isinline);
STSchema * metaGetTbTSchema(SMeta *pMeta, tb_uid_t uid, int32_t sver);
STSma * metaGetSmaInfoByName(SMeta *pMeta, const char *indexName);
STSmaWrapper * metaGetSmaInfoByUid(SMeta *pMeta, tb_uid_t uid);
SArray * metaGetSmaTbUids(SMeta *pMeta, bool isDup);
SMTbCursor *metaOpenTbCursor(SMeta *pMeta);
void metaCloseTbCursor(SMTbCursor *pTbCur);
char * metaTbCursorNext(SMTbCursor *pTbCur);
SMCtbCursor *metaOpenCtbCursor(SMeta *pMeta, tb_uid_t uid);
void metaCloseCtbCurosr(SMCtbCursor *pCtbCur);
tb_uid_t metaCtbCursorNext(SMCtbCursor *pCtbCur);
SMSmaCursor *metaOpenSmaCursor(SMeta *pMeta, tb_uid_t uid);
void metaCloseSmaCurosr(SMSmaCursor *pSmaCur);
const char * metaSmaCursorNext(SMSmaCursor *pSmaCur);
// Options
void metaOptionsInit(SMetaCfg *pMetaCfg);
void metaOptionsClear(SMetaCfg *pMetaCfg);
#ifdef __cplusplus
}
#endif
#endif /*_TD_META_H_*/