PragmaTwice commented on code in PR #3317:
URL: https://github.com/apache/kvrocks/pull/3317#discussion_r2655087350
##########
src/types/redis_string.cc:
##########
@@ -181,6 +182,47 @@ rocksdb::Status String::GetEx(engine::Context &ctx, const
std::string &user_key,
return rocksdb::Status::OK();
}
+rocksdb::Status String::DelEX(engine::Context &ctx, const std::string
&user_key, DelExOption &option, bool &deleted) {
+ std::string ns_key = AppendNamespacePrefix(user_key);
+ std::string value;
+ rocksdb::Status s = getValue(ctx, ns_key, &value);
+ if (!s.ok()) return s;
+
+ if (option.type == DelExOption::Type::NONE && option.value == "") {
+ return storage_->Delete(ctx, storage_->DefaultWriteOptions(),
metadata_cf_handle_, ns_key);
+ }
+
+ switch (option.type) {
+ case DelExOption::Type::IFDEQ:
+ if (option.value == util::StringDigest(value)) {
+ deleted = true;
+ }
+ break;
+ case DelExOption::Type::IFDNE:
+ if (option.value != util::StringDigest(value)) {
+ deleted = true;
+ }
+ break;
+ case DelExOption::Type::IFEQ:
+ if (option.value == value) {
+ deleted = true;
+ }
+ break;
+ case DelExOption::Type::IFNE:
+ if (option.value != value) {
+ deleted = true;
+ }
+ break;
+ default:
+ return rocksdb::Status::InvalidArgument();
+ break;
Review Comment:
```suggestion
return rocksdb::Status::InvalidArgument();
```
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