73 lines
2.1 KiB
C
73 lines
2.1 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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#include "trbtree.h"
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#include "tsdbDataFileRW.h"
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#include "tsdbDef.h"
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#include "tsdbSttFileRW.h"
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#ifndef _TSDB_ITER_H_
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#define _TSDB_ITER_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct SIterMerger SIterMerger;
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typedef struct STsdbIter STsdbIter;
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typedef TARRAY2(STsdbIter *) TTsdbIterArray;
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typedef enum {
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TSDB_ITER_TYPE_STT = 1,
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TSDB_ITER_TYPE_DATA,
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TSDB_ITER_TYPE_MEMT,
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TSDB_ITER_TYPE_STT_TOMB,
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TSDB_ITER_TYPE_DATA_TOMB,
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TSDB_ITER_TYPE_MEMT_TOMB,
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} EIterType;
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typedef struct {
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EIterType type;
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union {
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SSttFileReader *sttReader; // TSDB_ITER_TYPE_STT || TSDB_ITER_TYPE_STT_TOMB
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SDataFileReader *dataReader; // TSDB_ITER_TYPE_DATA || TSDB_ITER_TYPE_DATA_TOMB
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struct {
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SMemTable *memt; // TSDB_ITER_TYPE_MEMT_TOMB
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STsdbRowKey from[1];
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}; // TSDB_ITER_TYPE_MEMT
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};
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bool filterByVersion;
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int64_t verRange[2];
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} STsdbIterConfig;
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// STsdbIter ===============
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int32_t tsdbIterOpen(const STsdbIterConfig *config, STsdbIter **iter);
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int32_t tsdbIterClose(STsdbIter **iter);
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int32_t tsdbIterNext(STsdbIter *iter);
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// SIterMerger ===============
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int32_t tsdbIterMergerOpen(const TTsdbIterArray *iterArray, SIterMerger **merger, bool isTomb);
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int32_t tsdbIterMergerClose(SIterMerger **merger);
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int32_t tsdbIterMergerNext(SIterMerger *merger);
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int32_t tsdbIterMergerSkipTableData(SIterMerger *merger, const TABLEID *tbid);
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SRowInfo *tsdbIterMergerGetData(SIterMerger *merger);
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STombRecord *tsdbIterMergerGetTombRecord(SIterMerger *merger);
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#ifdef __cplusplus
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}
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#endif
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#endif /*_TSDB_ITER_H_*/ |