PragmaTwice commented on code in PR #1444:
URL:
https://github.com/apache/incubator-kvrocks/pull/1444#discussion_r1225749446
##########
src/types/redis_set.cc:
##########
@@ -332,21 +332,21 @@ rocksdb::Status Set::Union(const std::vector<Slice>
&keys, std::vector<std::stri
* key3 = {a,c,e}
* INTER key1 key2 key3 = {c}
*/
-rocksdb::Status Set::Inter(const std::vector<Slice> &keys,
std::vector<std::string> *members, uint64_t *cnt) {
+rocksdb::Status Set::Inter(const std::vector<Slice> &keys,
std::vector<std::string> *members, uint64_t limit,
+ uint64_t *cnt) {
members->clear();
std::map<std::string, size_t> member_counters;
std::vector<std::string> target_members;
auto s = Members(keys[0], &target_members);
if (!s.ok() || target_members.empty()) return s;
- uint64_t limit = cnt ? *cnt : 0;
bool has_limit = limit != 0;
- bool limited = false;
+ bool limit_reached = false;
size_t keys_size = keys.size();
if (keys_size == 1 && has_limit) {
- if (limit > target_members.size()) *cnt = target_members.size();
+ *cnt = limit > target_members.size() ? target_members.size() : limit;
Review Comment:
Here maybe a nullptr check is needed for `cnt`. But IMHO, we can assume that
`cnt` can never be nullptr, remove all these check and the default argument of
`cnt` (`nullptr`) in the function declaration.
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