xxq250
/
homework-jianmu
1
0
Fork 0
Code Issues Pull Requests 1 Actions Packages Projects Releases Wiki Activity

more

This commit is contained in:
Hongze Cheng 2022-07-04 06:14:39 +00:00
parent 267e450a15
commit b2f3ff2741
3 changed files with 105 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
source/dnode/vnode/inc/vnode.h
View File

@ -43,6 +43,7 @@ typedef struct SVnode SVnode;
typedef struct STsdbCfg STsdbCfg; // todo: remove
typedef struct SVnodeCfg SVnodeCfg;
typedef struct SVSnapshotReader SVSnapshotReader;
typedef struct SVSnapshotWriter SVSnapshotWriter;
extern const SVnodeCfg vnodeCfgDefault;
@ -66,9 +67,6 @@ 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);
int32_t vnodeGetAllTableList(SVnode *pVnode, uint64_t uid, SArray *list);
int32_t vnodeGetCtbIdList(SVnode *pVnode, int64_t suid, SArray *list);
@ -159,7 +157,14 @@ int32_t tqRetrieveDataBlock(SSDataBlock *pBlock, SStreamReader *pHandle);
// sma
int32_t smaGetTSmaDays(SVnodeCfg *pCfg, void *pCont, uint32_t contLen, int32_t *days);
// need to reposition
// SVSnapshotReader
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);
// SVSnapshotWriter;
int32_t vnodeSnapshotWriterOpen(SVnode *pVnode, int64_t sver, int64_t ever, SVSnapshotWriter **ppWriter);
int32_t vnodeSnapshotWrite(SVSnapshotWriter *pWriter, uint8_t *pData, uint32_t nData);
int32_t vnodeSnapshotWriterClose(SVSnapshotWriter *pWriter, int8_t rollback);
// structs
struct STsdbCfg {

59
source/dnode/vnode/src/tsdb/tsdbSnapshot.c
View File

@ -16,21 +16,60 @@
#include "tsdb.h"
struct STsdbSnapshotReader {
STsdb* pTsdb;
// TODO
STsdb* pTsdb;
int64_t sver;
int64_t ever;
// for data file
SDataFReader* pDataFReader;
// for del file
SDelFReader* pDelFReader;
};
int32_t tsdbSnapshotReaderOpen(STsdb* pTsdb, STsdbSnapshotReader** ppReader, int64_t sver, int64_t ever) {
// TODO
return 0;
}
typedef struct STsdbSnapshotWriter {
STsdb* pTsdb;
int64_t sver;
int64_t ever;
// for data file
SDataFWriter* pDataFWriter;
// for del file
SDelFWriter* pDelFWriter;
} STsdbSnapshotWriter;
int32_t tsdbSnapshotReaderClose(STsdbSnapshotReader* pReader) {
// TODO
return 0;
int32_t tsdbSnapshotReaderOpen(STsdb* pTsdb, STsdbSnapshotReader** ppReader, int64_t sver, int64_t ever) {
int32_t code = 0;
STsdbSnapshotReader* pReader = NULL;
// alloc
pReader = (STsdbSnapshotReader*)taosMemoryCalloc(1, sizeof(*pReader));
if (pReader == NULL) {
code = TSDB_CODE_OUT_OF_MEMORY;
goto _err;
}
pReader->pTsdb = pTsdb;
pReader->sver = sver;
pReader->ever = ever;
*ppReader = pReader;
return code;
_err:
tsdbError("vgId:%d snapshot reader open failed since %s", TD_VID(pTsdb->pVnode), tstrerror(code));
*ppReader = NULL;
return code;
}
int32_t tsdbSnapshotRead(STsdbSnapshotReader* pReader, void** ppData, uint32_t* nData) {
int32_t code = 0;
// TODO
return 0;
return code;
_err:
tsdbError("vgId:%d snapshot read failed since %s", TD_VID(pReader->pTsdb->pVnode), tstrerror(code));
return code;
}
int32_t tsdbSnapshotReaderClose(STsdbSnapshotReader* pReader) {
int32_t code = 0;
taosMemoryFree(pReader);
return code;
}

47
source/dnode/vnode/src/vnd/vnodeSnapshot.c
View File

@ -27,6 +27,13 @@ struct SVSnapshotReader {
int32_t nData;
};
struct SVSnapshotWriter {
SVnode *pVnode;
int64_t sver;
int64_t ever;
};
// SVSnapshotReader ========================================================
int32_t vnodeSnapshotReaderOpen(SVnode *pVnode, SVSnapshotReader **ppReader, int64_t sver, int64_t ever) {
SVSnapshotReader *pReader = NULL;
@ -106,4 +113,44 @@ int32_t vnodeSnapshotRead(SVSnapshotReader *pReader, const void **ppData, uint32
code = TSDB_CODE_VND_READ_END;
return code;
}
// SVSnapshotWriter ========================================================
int32_t vnodeSnapshotWriterOpen(SVnode *pVnode, int64_t sver, int64_t ever, SVSnapshotWriter **ppWriter) {
int32_t code = 0;
SVSnapshotWriter *pWriter = NULL;
// alloc
pWriter = (SVSnapshotWriter *)taosMemoryCalloc(1, sizeof(*pWriter));
if (pWriter == NULL) {
code = TSDB_CODE_OUT_OF_MEMORY;
goto _err;
}
pWriter->pVnode = pVnode;
pWriter->sver = sver;
pWriter->ever = ever;
return code;
_err:
return code;
}
int32_t vnodeSnapshotWrite(SVSnapshotWriter *pWriter, uint8_t *pData, uint32_t nData) {
int32_t code = 0;
// TODO
return code;
}
int32_t vnodeSnapshotWriterClose(SVSnapshotWriter *pWriter, int8_t rollback) {
int32_t code = 0;
if (!rollback) {
// apply the change
} else {
// rollback the change
}
taosMemoryFree(pWriter);
return code;
}