mirror of
https://github.com/taosdata/TDengine
synced 2026-05-24 10:09:01 +00:00
93 lines
2.6 KiB
C
93 lines
2.6 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_META_H_
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#define _TD_META_H_
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#include "os.h"
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#include "trow.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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// Types exported
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typedef uint64_t tb_uid_t;
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typedef struct SMeta SMeta;
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typedef struct SMetaCfg {
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/// LRU cache size
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uint64_t lruSize;
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} SMetaCfg;
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typedef struct STbCfg {
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/// name of the table
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char *name;
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/// time to live of the table
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uint32_t ttl;
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/// type of table
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uint8_t type;
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union {
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/// super table configurations
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struct {
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/// super table UID
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tb_uid_t suid;
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/// row schema
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STSchema *pSchema;
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/// tag schema
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STSchema *pTagSchema;
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} stbCfg;
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/// normal table configuration
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struct {
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/// row schema
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STSchema *pSchema;
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} ntbCfg;
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/// child table configuration
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struct {
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/// super table UID
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tb_uid_t suid;
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SRow * pTag;
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} ctbCfg;
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};
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} STbCfg;
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// SMeta operations
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SMeta *metaOpen(const char *path, const SMetaCfg *pOptions);
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void metaClose(SMeta *pMeta);
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void metaRemove(const char *path);
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int metaCreateTable(SMeta *pMeta, const STbCfg *pTbOptions);
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int metaDropTable(SMeta *pMeta, tb_uid_t uid);
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int metaCommit(SMeta *pMeta);
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// Options
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void metaOptionsInit(SMetaCfg *pOptions);
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void metaOptionsClear(SMetaCfg *pOptions);
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// STableOpts
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// #define META_TABLE_OPTS_DECLARE(name) STableOpts name = {0}
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// void metaNormalTableOptsInit(STbCfg *pTbOptions, const char *name, const STSchema *pSchema);
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// void metaSuperTableOptsInit(STbCfg *pTbOptions, const char *name, tb_uid_t uid, const STSchema *pSchema,
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// const STSchema *pTagSchema);
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// void metaChildTableOptsInit(STbCfg *pTbOptions, const char *name, tb_uid_t suid, const SKVRow tags);
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// void metaTableOptsClear(STbCfg *pTbOptions);
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// uint64_t metaEncodeTbOptions(void **pBuf, STbCfg *pTbOptions);
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// STbCfg * metaDecodeTbOptions(void *pBuf, size_t size, bool endian);
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#ifdef __cplusplus
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}
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#endif
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#endif /*_TD_META_H_*/
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