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This commit is contained in:
Hongze Cheng 2021-12-30 07:40:04 +00:00
parent bbf1c53b6d
commit 2c5311abbd
2 changed files with 46 additions and 0 deletions
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6
include/dnode/vnode/meta/meta.h
View File

@ -42,6 +42,8 @@ typedef struct {
SSchema *pSchema; SSchema *pSchema;
} SSchemaWrapper; } SSchemaWrapper;
typedef struct SMTbCursor SMTbCursor;
typedef SVCreateTbReq STbCfg; typedef SVCreateTbReq STbCfg;
// SMeta operations // SMeta operations
@ -57,6 +59,10 @@ STbCfg * metaGetTbInfoByUid(SMeta *pMeta, tb_uid_t uid);
STbCfg * metaGetTbInfoByName(SMeta *pMeta, char *tbname, tb_uid_t *uid); STbCfg * metaGetTbInfoByName(SMeta *pMeta, char *tbname, tb_uid_t *uid);
SSchemaWrapper *metaGetTableSchema(SMeta *pMeta, tb_uid_t uid, int32_t sver, bool isinline); SSchemaWrapper *metaGetTableSchema(SMeta *pMeta, tb_uid_t uid, int32_t sver, bool isinline);
SMTbCursor * metaOpenTbCursor(SMeta *pMeta);
void metaCloseTbCursor(SMTbCursor *pTbCur);
char *metaTbCursorNext(SMTbCursor *pTbCur);
// Options // Options
void metaOptionsInit(SMetaCfg *pMetaCfg); void metaOptionsInit(SMetaCfg *pMetaCfg);
void metaOptionsClear(SMetaCfg *pMetaCfg); void metaOptionsClear(SMetaCfg *pMetaCfg);

40
source/dnode/vnode/meta/src/metaBDBImpl.c
View File

@ -542,3 +542,43 @@ SSchemaWrapper *metaGetTableSchema(SMeta *pMeta, tb_uid_t uid, int32_t sver, boo
return pSW; return pSW;
} }
struct SMTbCursor {
DBC *pCur;
};
SMTbCursor *metaOpenTbCursor(SMeta *pMeta) {
SMTbCursor *pTbCur = NULL;
SMetaDB * pDB = pMeta->pDB;
pTbCur = (SMTbCursor *)calloc(1, sizeof(*pTbCur));
if (pTbCur == NULL) {
return NULL;
}
pDB->pTbDB->cursor(pDB->pTbDB, NULL, &(pTbCur->pCur), 0);
return pTbCur;
}
void metaCloseTbCursor(SMTbCursor *pTbCur) {
if (pTbCur) {
if (pTbCur->pCur) {
pTbCur->pCur->close(pTbCur->pCur);
}
free(pTbCur);
}
}
char *metaTbCursorNext(SMTbCursor *pTbCur) {
DBT key = {0};
DBT value = {0};
STbCfg tbCfg;
if (pTbCur->pCur->get(pTbCur->pCur, &key, &value, DB_NEXT) == 0) {
metaDecodeTbInfo(&(value.data), &tbCfg);
return tbCfg.name;
} else {
return NULL;
}
}