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more snapshot writer

This commit is contained in:
Hongze Cheng 2022-07-05 11:55:07 +00:00
parent 3b00de6d4b
commit aa8f1604f0
4 changed files with 74 additions and 4 deletions
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7
source/dnode/vnode/src/inc/vnodeInt.h
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@ -180,11 +180,18 @@ int32_t metaSnapReaderOpen(SMeta* pMeta, int64_t sver, int64_t ever, SMetaSnapRe
int32_t metaSnapReaderClose(SMetaSnapReader** ppReader);
int32_t metaSnapRead(SMetaSnapReader* pReader, uint8_t** ppData);
// SMetaSnapWriter ========================================
int32_t metaSnapWriterOpen(SMeta* pMeta, int64_t sver, int64_t ever, SMetaSnapWriter** ppWriter);
int32_t metaSnapWrite(SMetaSnapWriter* pWriter, uint8_t* pData, uint32_t nData);
int32_t metaSnapWriterClose(SMetaSnapWriter** ppWriter, int8_t rollback);
// STsdbSnapReader ========================================
int32_t tsdbSnapReaderOpen(STsdb* pTsdb, int64_t sver, int64_t ever, STsdbSnapReader** ppReader);
int32_t tsdbSnapReaderClose(STsdbSnapReader** ppReader);
int32_t tsdbSnapRead(STsdbSnapReader* pReader, uint8_t** ppData);
// STsdbSnapWriter ========================================
int32_t tsdbSnapWriterOpen(STsdb* pTsdb, int64_t sver, int64_t ever, STsdbSnapWriter** ppWriter);
int32_t tsdbSnapWrite(STsdbSnapWriter* pWriter, uint8_t* pData, uint32_t nData);
int32_t tsdbSnapWriterClose(STsdbSnapWriter** ppWriter, int8_t rollback);
typedef struct {
int8_t streamType; // sma or other
int8_t dstType;

25
source/dnode/vnode/src/meta/metaSnapshot.c
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@ -101,4 +101,27 @@ _exit:
return code;
}
// SMetaSnapWriter ========================================
// SMetaSnapWriter ========================================
struct SMetaSnapWriter {
SMeta* pMeta;
int64_t sver;
int64_t ever;
};
int32_t metaSnapWriterOpen(SMeta* pMeta, int64_t sver, int64_t ever, SMetaSnapWriter** ppWriter) {
int32_t code = 0;
// TODO
return code;
}
int32_t metaSnapWrite(SMetaSnapWriter* pWriter, uint8_t* pData, uint32_t nData) {
int32_t code = 0;
// TODO
return code;
}
int32_t metaSnapWriterClose(SMetaSnapWriter** ppWriter, int8_t rollback) {
int32_t code = 0;
// TODO
return code;
}

20
source/dnode/vnode/src/tsdb/tsdbSnapshot.c
View File

@ -313,4 +313,22 @@ struct STsdbSnapWriter {
SDataFWriter* pDataFWriter;
// for del file
SDelFWriter* pDelFWriter;
};
};
int32_t tsdbSnapWriterOpen(STsdb* pTsdb, int64_t sver, int64_t ever, STsdbSnapWriter** ppWriter) {
int32_t code = 0;
// TODO
return code;
}
int32_t tsdbSnapWrite(STsdbSnapWriter* pWriter, uint8_t* pData, uint32_t nData) {
int32_t code = 0;
// TODO
return code;
}
int32_t tsdbSnapWriterClose(STsdbSnapWriter** ppWriter, int8_t rollback) {
int32_t code = 0;
// TODO
return code;
}

26
source/dnode/vnode/src/vnd/vnodeSnapshot.c
View File

@ -116,6 +116,10 @@ struct SVSnapWriter {
SVnode *pVnode;
int64_t sver;
int64_t ever;
// meta
SMetaSnapWriter *pMetaSnapWriter;
// tsdb
STsdbSnapWriter *pTsdbSnapWriter;
};
int32_t vnodeSnapWriterOpen(SVnode *pVnode, int64_t sver, int64_t ever, SVSnapWriter **ppWriter) {
@ -152,7 +156,25 @@ int32_t vnodeSnapWriterClose(SVSnapWriter *pWriter, int8_t rollback) {
}
int32_t vnodeSnapWrite(SVSnapWriter *pWriter, uint8_t *pData, uint32_t nData) {
int32_t code = 0;
// TODO
int32_t code = 0;
SSnapDataHdr *pSnapDataHdr = (SSnapDataHdr *)pData;
SVnode *pVnode = pWriter->pVnode;
ASSERT(pSnapDataHdr->size + sizeof(SSnapDataHdr) == nData);
if (pSnapDataHdr->type == 0) {
// meta
if (pWriter->pMetaSnapWriter == NULL) {
code = metaSnapWriterOpen(pVnode->pMeta, pWriter->sver, pWriter->ever, &pWriter->pMetaSnapWriter);
if (code) goto _err;
}
} else {
// tsdb
}
return code;
_err:
vError("vgId:%d vnode snapshot write failed since %s", TD_VID(pVnode), tstrerror(code));
return code;
}