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homework-jianmu/source/dnode/vnode/inc/vnode.h

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/*
* 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/>.
*/
#ifndef _TD_VNODE_H_
#define _TD_VNODE_H_
#include "os.h"
#include "tmsgcb.h"
#include "tqueue.h"
#include "trpc.h"
#include "sync.h"
#include "tarray.h"
#include "tfs.h"
#include "wal.h"
#include "tcommon.h"
#include "tfs.h"
#include "tmallocator.h"
#include "tmsg.h"
#include "trow.h"
#include "tdb.h"
#ifdef __cplusplus
extern "C" {
#endif
// vnode
typedef struct SVnode SVnode;
typedef struct STsdbCfg STsdbCfg; // todo: remove
typedef struct SVnodeCfg SVnodeCfg;
typedef struct SVSnapshotReader SVSnapshotReader;
extern const SVnodeCfg vnodeCfgDefault;
int32_t vnodeInit(int32_t nthreads);
void vnodeCleanup();
int32_t vnodeCreate(const char *path, SVnodeCfg *pCfg, STfs *pTfs);
void vnodeDestroy(const char *path, STfs *pTfs);
SVnode *vnodeOpen(const char *path, STfs *pTfs, SMsgCb msgCb);
void vnodeClose(SVnode *pVnode);
int32_t vnodePreprocessReq(SVnode *pVnode, SRpcMsg *pMsg);
int32_t vnodeProcessWriteReq(SVnode *pVnode, SRpcMsg *pMsg, int64_t version, SRpcMsg *pRsp);
int32_t vnodeProcessCMsg(SVnode *pVnode, SRpcMsg *pMsg, SRpcMsg **pRsp);
int32_t vnodeProcessSyncReq(SVnode *pVnode, SRpcMsg *pMsg, SRpcMsg **pRsp);
int32_t vnodePreprocessQueryMsg(SVnode *pVnode, SRpcMsg *pMsg);
int32_t vnodeProcessQueryMsg(SVnode *pVnode, SRpcMsg *pMsg);
int32_t vnodeProcessFetchMsg(SVnode *pVnode, SRpcMsg *pMsg, SQueueInfo *pInfo);
int32_t vnodeGetLoad(SVnode *pVnode, SVnodeLoad *pLoad);
int32_t vnodeValidateTableHash(SVnode *pVnode, char *tableFName);
int32_t vnodeStart(SVnode *pVnode);
void vnodeStop(SVnode *pVnode);
int64_t vnodeGetSyncHandle(SVnode *pVnode);
void vnodeGetSnapshot(SVnode *pVnode, SSnapshot *pSnapshot);
void vnodeGetInfo(SVnode *pVnode, const char **dbname, int32_t *vgId);
int32_t vnodeSnapshotReaderOpen(SVnode *pVnode, SVSnapshotReader **ppReader, int64_t sver, int64_t ever);
int32_t vnodeSnapshotReaderClose(SVSnapshotReader *pReader);
int32_t vnodeSnapshotRead(SVSnapshotReader *pReader, const void **ppData, uint32_t *nData);
int32_t vnodeProcessCreateTSma(SVnode *pVnode, void *pCont, uint32_t contLen);
void vnodeProposeMsg(SQueueInfo *pInfo, STaosQall *qall, int32_t numOfMsgs);
void vnodeApplyMsg(SQueueInfo *pInfo, STaosQall *qall, int32_t numOfMsgs);
// meta
typedef struct SMeta SMeta; // todo: remove
typedef struct SMetaReader SMetaReader;
typedef struct SMetaEntry SMetaEntry;
void metaReaderInit(SMetaReader *pReader, SMeta *pMeta, int32_t flags);
void metaReaderClear(SMetaReader *pReader);
int32_t metaGetTableEntryByUid(SMetaReader *pReader, tb_uid_t uid);
int32_t metaReadNext(SMetaReader *pReader);
const void *metaGetTableTagVal(SMetaEntry *pEntry, int16_t type, STagVal *tagVal);
typedef struct SMetaFltParam {
tb_uid_t suid;
int16_t cid;
int16_t type;
char *val;
bool reverse;
int (*filterFunc)(void *a, void *b, int16_t type);
} SMetaFltParam;
int32_t metaFilteTableIds(SMeta *pMeta, SMetaFltParam *param, SArray *results);
#if 1 // refact APIs below (TODO)
typedef SVCreateTbReq STbCfg;
typedef SVCreateTSmaReq SSmaCfg;
typedef struct SMTbCursor SMTbCursor;
SMTbCursor *metaOpenTbCursor(SMeta *pMeta);
void metaCloseTbCursor(SMTbCursor *pTbCur);
int32_t metaTbCursorNext(SMTbCursor *pTbCur);
#endif
// tsdb
// typedef struct STsdb STsdb;
typedef void *tsdbReaderT;
#define BLOCK_LOAD_OFFSET_SEQ_ORDER 1
#define BLOCK_LOAD_TABLE_SEQ_ORDER 2
#define BLOCK_LOAD_TABLE_RR_ORDER 3
tsdbReaderT *tsdbReaderOpen(SVnode *pVnode, SQueryTableDataCond *pCond, STableListInfo *tableInfoGroup, uint64_t qId,
uint64_t taskId);
tsdbReaderT tsdbQueryCacheLast(SVnode *pVnode, SQueryTableDataCond *pCond, STableListInfo *groupList, uint64_t qId,
void *pMemRef);
int32_t tsdbGetFileBlocksDistInfo(tsdbReaderT *pReader, STableBlockDistInfo *pTableBlockInfo);
bool isTsdbCacheLastRow(tsdbReaderT *pReader);
int32_t tsdbGetAllTableList(SMeta *pMeta, uint64_t uid, SArray *list);
int32_t tsdbGetCtbIdList(SMeta *pMeta, int64_t suid, SArray *list);
void *tsdbGetIdx(SMeta *pMeta);
void *tsdbGetIvtIdx(SMeta *pMeta);
int64_t tsdbGetNumOfRowsInMemTable(tsdbReaderT *pHandle);
bool tsdbNextDataBlock(tsdbReaderT pTsdbReadHandle);
void tsdbRetrieveDataBlockInfo(tsdbReaderT *pTsdbReadHandle, SDataBlockInfo *pBlockInfo);
int32_t tsdbRetrieveDataBlockStatisInfo(tsdbReaderT *pTsdbReadHandle, SColumnDataAgg ***pBlockStatis, bool *allHave);
SArray *tsdbRetrieveDataBlock(tsdbReaderT *pTsdbReadHandle, SArray *pColumnIdList);
void tsdbResetReadHandle(tsdbReaderT queryHandle, SQueryTableDataCond *pCond, int32_t tWinIdx);
void tsdbCleanupReadHandle(tsdbReaderT queryHandle);
// tq
typedef struct STqReadHandle STqReadHandle;
STqReadHandle *tqInitSubmitMsgScanner(SMeta *pMeta);
void tqReadHandleSetColIdList(STqReadHandle *pReadHandle, SArray *pColIdList);
int32_t tqReadHandleSetTbUidList(STqReadHandle *pHandle, const SArray *tbUidList);
int32_t tqReadHandleAddTbUidList(STqReadHandle *pHandle, const SArray *tbUidList);
int32_t tqReadHandleRemoveTbUidList(STqReadHandle *pHandle, const SArray *tbUidList);
int32_t tqReadHandleSetMsg(STqReadHandle *pHandle, SSubmitReq *pMsg, int64_t ver);
bool tqNextDataBlock(STqReadHandle *pHandle);
bool tqNextDataBlockFilterOut(STqReadHandle *pHandle, SHashObj *filterOutUids);
int32_t tqRetrieveDataBlock(SArray **ppCols, STqReadHandle *pHandle, uint64_t *pGroupId, uint64_t *pUid,
int32_t *pNumOfRows, int16_t *pNumOfCols);
// sma
int32_t smaGetTSmaDays(SVnodeCfg *pCfg, void *pCont, uint32_t contLen, int32_t *days);
// need to reposition
// structs
struct STsdbCfg {
int8_t precision;
int8_t update;
int8_t compression;
int8_t slLevel;
int32_t minRows;
int32_t maxRows;
int32_t days; // just for save config, don't use in tsdbRead/tsdbCommit/..., and use STsdbKeepCfg in STsdb instead
int32_t keep0; // just for save config, don't use in tsdbRead/tsdbCommit/..., and use STsdbKeepCfg in STsdb instead
int32_t keep1; // just for save config, don't use in tsdbRead/tsdbCommit/..., and use STsdbKeepCfg in STsdb instead
int32_t keep2; // just for save config, don't use in tsdbRead/tsdbCommit/..., and use STsdbKeepCfg in STsdb instead
SRetention retentions[TSDB_RETENTION_MAX];
};
struct SVnodeCfg {
int32_t vgId;
char dbname[TSDB_DB_FNAME_LEN];
uint64_t dbId;
int32_t szPage;
int32_t szCache;
uint64_t szBuf;
bool isHeap;
bool isWeak;
int8_t isTsma;
int8_t isRsma;
int8_t hashMethod;
int8_t standby;
STsdbCfg tsdbCfg;
SWalCfg walCfg;
SSyncCfg syncCfg;
uint32_t hashBegin;
uint32_t hashEnd;
};
typedef struct {
TSKEY lastKey;
uint64_t uid;
} STableKeyInfo;
struct SMetaEntry {
int64_t version;
int8_t type;
tb_uid_t uid;
char *name;
union {
struct {
SSchemaWrapper schemaRow;
SSchemaWrapper schemaTag;
} stbEntry;
struct {
int64_t ctime;
int32_t ttlDays;
tb_uid_t suid;
uint8_t *pTags;
} ctbEntry;
struct {
int64_t ctime;
int32_t ttlDays;
int32_t ncid; // next column id
SSchemaWrapper schemaRow;
} ntbEntry;
struct {
STSma *tsma;
} smaEntry;
};
uint8_t *pBuf;
};
struct SMetaReader {
int32_t flags;
SMeta *pMeta;
SDecoder coder;
SMetaEntry me;
void *pBuf;
int32_t szBuf;
};
struct SMTbCursor {
TBC *pDbc;
void *pKey;
void *pVal;
int32_t kLen;
int32_t vLen;
SMetaReader mr;
};
#ifdef __cplusplus
}
#endif
#endif /*_TD_VNODE_H_*/
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