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tsdbCache: new H version api for last/last_row getting

This commit is contained in:
Minglei Jin 2022-06-29 17:29:49 +08:00
parent 7678b6bb7d
commit 847016aa21
2 changed files with 65 additions and 2 deletions
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8
source/dnode/vnode/src/inc/tsdb.h
View File

@ -250,10 +250,16 @@ int32_t tsdbReadDelIdx(SDelFReader *pReader, SArray *aDelIdx, uint8_t **ppBuf);
int32_t tsdbOpenCache(STsdb *pTsdb);
void tsdbCloseCache(SLRUCache *pCache);
int32_t tsdbCacheInsertLastrow(SLRUCache *pCache, tb_uid_t uid, STSRow *row);
// bug api, deprecated, USE H version
int32_t tsdbCacheGetLastrow(SLRUCache *pCache, tb_uid_t uid, STsdb *pTsdb, STSRow **ppRow);
int32_t tsdbCacheDeleteLastrow(SLRUCache *pCache, tb_uid_t uid, TSKEY eKey);
int32_t tsdbCacheGetLastH(SLRUCache *pCache, tb_uid_t uid, STsdb *pTsdb, LRUHandle **h);
int32_t tsdbCacheGetLastrowH(SLRUCache *pCache, tb_uid_t uid, STsdb *pTsdb, LRUHandle **h);
int32_t tsdbCacheRelease(SLRUCache *pCache, LRUHandle *h);
int32_t tsdbCacheDeleteLastrow(SLRUCache *pCache, tb_uid_t uid, TSKEY eKey);
// structs =======================
typedef struct {
int minFid;

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

@ -1007,7 +1007,7 @@ int32_t tsdbCacheGetLastrow(SLRUCache *pCache, tb_uid_t uid, STsdb *pTsdb, STSRo
return code;
}
#if 0
int32_t tsdbCacheGetLast(SLRUCache *pCache, tb_uid_t uid, STsdb *pTsdb, STSRow **ppRow) {
int32_t code = 0;
char key[32] = {0};
@ -1034,6 +1034,63 @@ int32_t tsdbCacheGetLast(SLRUCache *pCache, tb_uid_t uid, STsdb *pTsdb, STSRow *
return code;
}
#endif
int32_t tsdbCacheGetLastrowH(SLRUCache *pCache, tb_uid_t uid, STsdb *pTsdb, LRUHandle **handle) {
int32_t code = 0;
char key[32] = {0};
int keyLen = 0;
getTableCacheKey(uid, "lr", key, &keyLen);
LRUHandle *h = taosLRUCacheLookup(pCache, key, keyLen);
if (h) {
//*ppRow = (STSRow *)taosLRUCacheValue(pCache, h);
} else {
STSRow *pRow = NULL;
code = mergeLastRow(uid, pTsdb, &pRow);
// if table's empty or error, return code of -1
if (code < 0 || pRow == NULL) {
return -1;
}
tsdbCacheInsertLastrow(pCache, uid, pRow);
h = taosLRUCacheLookup(pCache, key, keyLen);
//*ppRow = (STSRow *)taosLRUCacheValue(pCache, h);
}
*handle = h;
// taosLRUCacheRelease(pCache, h, true);
return code;
}
int32_t tsdbCacheGetLastH(SLRUCache *pCache, tb_uid_t uid, STsdb *pTsdb, LRUHandle **handle) {
int32_t code = 0;
char key[32] = {0};
int keyLen = 0;
getTableCacheKey(uid, "l", key, &keyLen);
LRUHandle *h = taosLRUCacheLookup(pCache, key, keyLen);
if (h) {
//*ppRow = (STSRow *)taosLRUCacheValue(pCache, h);
} else {
STSRow *pRow = NULL;
code = mergeLast(uid, pTsdb, &pRow);
// if table's empty or error, return code of -1
if (code < 0 || pRow == NULL) {
return -1;
}
tsdbCacheInsertLast(pCache, uid, pRow);
h = taosLRUCacheLookup(pCache, key, keyLen);
//*ppRow = (STSRow *)taosLRUCacheValue(pCache, h);
}
*handle = h;
// taosLRUCacheRelease(pCache, h, true);
return code;
}
int32_t tsdbCacheDeleteLastrow(SLRUCache *pCache, tb_uid_t uid, TSKEY eKey) {
int32_t code = 0;