80 lines
2.7 KiB
C
80 lines
2.7 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_MND_STREAM_H_
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#define _TD_MND_STREAM_H_
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#include "mndInt.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct SStreamTransInfo {
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int64_t startTime;
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int32_t transId;
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const char *name;
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} SStreamTransInfo;
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// time to generated the checkpoint, if now() - checkpointTs >= tsCheckpointInterval, this checkpoint will be discard
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// to avoid too many checkpoints for a taskk in the waiting list
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typedef struct SCheckpointCandEntry {
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char * pName;
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int64_t streamId;
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int64_t checkpointTs;
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int64_t checkpointId;
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} SCheckpointCandEntry;
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typedef struct SStreamTransMgmt {
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SHashObj *pDBTrans;
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SHashObj *pWaitingList; // stream id list, of which timed checkpoint failed to be issued due to the trans conflict.
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} SStreamTransMgmt;
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typedef struct SStreamExecInfo {
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SArray * pNodeList;
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int64_t ts; // snapshot ts
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SStreamTransMgmt transMgmt;
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int64_t activeCheckpoint; // active check point id
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SHashObj * pTaskMap;
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SArray * pTaskList;
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TdThreadMutex lock;
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} SStreamExecInfo;
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extern SStreamExecInfo execInfo;
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int32_t mndInitStream(SMnode *pMnode);
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void mndCleanupStream(SMnode *pMnode);
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SStreamObj *mndAcquireStream(SMnode *pMnode, char *streamName);
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void mndReleaseStream(SMnode *pMnode, SStreamObj *pStream);
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int32_t mndDropStreamByDb(SMnode *pMnode, STrans *pTrans, SDbObj *pDb);
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int32_t mndPersistStream(SMnode *pMnode, STrans *pTrans, SStreamObj *pStream);
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int32_t mndStreamRegisterTrans(STrans *pTrans, const char *pName, const char *pSrcDb, const char *pDstDb);
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int32_t mndAddtoCheckpointWaitingList(SStreamObj *pStream, int64_t checkpointId);
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bool streamTransConflictOtherTrans(SMnode *pMnode, const char *pSrcDb, const char *pDstDb, bool lock);
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// for sma
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// TODO refactor
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int32_t mndDropStreamTasks(SMnode *pMnode, STrans *pTrans, SStreamObj *pStream);
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int32_t mndPersistDropStreamLog(SMnode *pMnode, STrans *pTrans, SStreamObj *pStream);
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int32_t mndGetNumOfStreams(SMnode *pMnode, char *dbName, int32_t *pNumOfStreams);
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#ifdef __cplusplus
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}
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#endif
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#endif /*_TD_MND_STREAM_H_*/
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