138 lines
3.3 KiB
C
138 lines
3.3 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 _DATA_SINK_MGT_H
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#define _DATA_SINK_MGT_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "executor.h"
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#include "os.h"
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#include "plannodes.h"
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#include "thash.h"
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#define DS_BUF_LOW 1
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#define DS_BUF_FULL 2
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#define DS_BUF_EMPTY 3
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struct SSDataBlock;
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typedef struct SDeleterRes {
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uint64_t suid;
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SArray* uidList;
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int64_t skey;
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int64_t ekey;
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int64_t affectedRows;
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char tableName[TSDB_TABLE_NAME_LEN];
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char tsColName[TSDB_COL_NAME_LEN];
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} SDeleterRes;
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typedef struct SDeleterParam {
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uint64_t suid;
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SArray* pUidList;
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} SDeleterParam;
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typedef struct SInserterParam {
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SReadHandle* readHandle;
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} SInserterParam;
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typedef struct SDataSinkStat {
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uint64_t cachedSize;
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} SDataSinkStat;
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typedef struct SDataSinkMgtCfg {
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uint32_t maxDataBlockNum; // todo: this should be numOfRows?
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uint32_t maxDataBlockNumPerQuery;
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} SDataSinkMgtCfg;
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int32_t dsDataSinkMgtInit(SDataSinkMgtCfg* cfg, SStorageAPI* pAPI);
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typedef struct SInputData {
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const struct SSDataBlock* pData;
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} SInputData;
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typedef struct SOutputData {
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int32_t numOfBlocks;
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int64_t numOfRows; // int32_t changed to int64_t
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int32_t numOfCols;
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int8_t compressed;
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char* pData;
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bool queryEnd;
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int32_t bufStatus;
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int64_t useconds;
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int8_t precision;
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} SOutputData;
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/**
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* Create a subplan's datasinker handle for all later operations.
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* @param pDataSink
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* @param pHandle output
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* @return error code
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*/
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int32_t dsCreateDataSinker(const SDataSinkNode* pDataSink, DataSinkHandle* pHandle, void* pParam, const char* id);
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int32_t dsDataSinkGetCacheSize(SDataSinkStat* pStat);
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/**
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* Put the result set returned by the executor into datasinker.
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* @param handle
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* @param pRes
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* @return error code
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*/
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int32_t dsPutDataBlock(DataSinkHandle handle, const SInputData* pInput, bool* pContinue);
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void dsEndPut(DataSinkHandle handle, uint64_t useconds);
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void dsReset(DataSinkHandle handle);
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/**
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* Get the length of the data returned by the next call to dsGetDataBlock.
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* @param handle
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* @param pLen data length
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*/
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void dsGetDataLength(DataSinkHandle handle, int64_t* pLen, bool* pQueryEnd);
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/**
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* Get data, the caller needs to allocate data memory.
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* @param handle
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* @param pOutput output
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* @param pStatus output
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* @return error code
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*/
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int32_t dsGetDataBlock(DataSinkHandle handle, SOutputData* pOutput);
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int32_t dsGetCacheSize(DataSinkHandle handle, uint64_t* pSize);
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/**
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* After dsGetStatus returns DS_NEED_SCHEDULE, the caller need to put this into the work queue.
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* @param ahandle
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* @param pItem
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*/
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void dsScheduleProcess(void* ahandle, void* pItem);
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/**
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* Destroy the datasinker handle.
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* @param handle
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*/
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void dsDestroyDataSinker(DataSinkHandle handle);
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#ifdef __cplusplus
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}
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#endif
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#endif /*_DATA_SINK_MGT_H*/
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