homework-jianmu/src/vnode/tsdb/inc/tsdbFile.h

75 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/>.
*/
#if !defined(_TD_TSDB_FILE_H_)
#define _TD_TSDB_FILE_H_
#include <stdint.h>
#include "taosdef.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef enum {
TSDB_FILE_TYPE_HEAD, // .head file type
TSDB_FILE_TYPE_DATA, // .data file type
TSDB_FILE_TYPE_LAST, // .last file type
TSDB_FILE_TYPE_META // .meta file type
} TSDB_FILE_TYPE;
extern const char *tsdbFileSuffix[];
typedef struct {
int64_t size;
int64_t tombSize;
} SFileInfo;
typedef struct {
int fd;
int64_t size; // total size of the file
int64_t tombSize; // unused file size
} SFile;
typedef struct {
int32_t fileId;
SFile fhead;
SFile fdata;
SFile flast;
} SFileGroup;
// TSDB file handle
typedef struct {
int32_t daysPerFile;
int32_t keep;
int32_t minRowPerFBlock;
int32_t maxRowsPerFBlock;
SFileGroup fGroup[];
} STsdbFileH;
#define IS_VALID_TSDB_FILE_TYPE(type) ((type) >= TSDB_FILE_TYPE_HEAD && (type) <= TSDB_FILE_TYPE_META)
STsdbFileH *tsdbInitFile(char *dataDir, int32_t daysPerFile, int32_t keep, int32_t minRowsPerFBlock,
int32_t maxRowsPerFBlock);
void tsdbCloseFile(STsdbFileH *pFileH);
char *tsdbGetFileName(char *dirName, char *fname, TSDB_FILE_TYPE type);
#ifdef __cplusplus
}
#endif
#endif // _TD_TSDB_FILE_H_