提交 9fbbb25a 编写于 作者: H Hongze Cheng

feat: vnode snapshot

上级 e2003534
......@@ -67,7 +67,7 @@ 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, void **ppData, uint32_t *nData);
int32_t vnodeSnapshotRead(SVSnapshotReader *pReader, const void **ppData, uint32_t *nData);
// meta
typedef struct SMeta SMeta; // todo: remove
......
......@@ -23,6 +23,8 @@ struct SVSnapshotReader {
int8_t isTsdbEnd;
SMetaSnapshotReader *pMetaReader;
STsdbSnapshotReader *pTsdbReader;
void *pData;
int32_t nData;
};
int32_t vnodeSnapshotReaderOpen(SVnode *pVnode, SVSnapshotReader **ppReader, int64_t sver, int64_t ever) {
......@@ -61,6 +63,7 @@ _err:
int32_t vnodeSnapshotReaderClose(SVSnapshotReader *pReader) {
if (pReader) {
vnodeFree(pReader->pData);
tsdbSnapshotReaderClose(pReader->pTsdbReader);
metaSnapshotReaderClose(pReader->pMetaReader);
taosMemoryFree(pReader);
......@@ -68,11 +71,11 @@ int32_t vnodeSnapshotReaderClose(SVSnapshotReader *pReader) {
return 0;
}
int32_t vnodeSnapshotRead(SVSnapshotReader *pReader, void **ppData, uint32_t *nData) {
int32_t vnodeSnapshotRead(SVSnapshotReader *pReader, const void **ppData, uint32_t *nData) {
int32_t code = 0;
if (!pReader->isMetaEnd) {
code = metaSnapshotRead(pReader->pMetaReader, ppData, nData);
code = metaSnapshotRead(pReader->pMetaReader, &pReader->pData, &pReader->pData);
if (code) {
if (code == TSDB_CODE_VND_READ_END) {
pReader->isMetaEnd = 1;
......@@ -80,14 +83,23 @@ int32_t vnodeSnapshotRead(SVSnapshotReader *pReader, void **ppData, uint32_t *nD
return code;
}
} else {
*ppData = pReader->pData;
*nData = pReader->nData;
return code;
}
}
if (!pReader->isTsdbEnd) {
code = tsdbSnapshotRead(pReader->pTsdbReader, ppData, nData);
code = tsdbSnapshotRead(pReader->pTsdbReader, &pReader->pData, pReader->nData);
if (code) {
if (code == TSDB_CODE_VND_READ_END) {
pReader->isTsdbEnd = 1;
} else {
return code;
}
} else {
*ppData = pReader->pData;
*nData = pReader->nData;
return code;
}
}
......
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