chore: initial commit

rediska/common/types.hpp

@@ -0,0 +1,30 @@
+#pragma once
+
+#include <cstdint>
+#include <memory>
+#include <string>
+#include <variant>
+#include <chrono>
+#include "rediska/data-structures/impl/ListDataStructure.hpp"
+
+using CacheKey = std::string;
+
+// Definition order of `CacheValue` and `TypeId` MUST match!
+using CacheValue = std::variant<bool, int64_t, double, std::string, std::shared_ptr<ListDataStructure>>;
+
+enum class CacheValueId { BOOLEAN = 0, INT, FLOAT, STRING, ARRAY }; // TODO: Object
+
+enum class RediskaReturnCode {
+    OK,
+    INCOMPATIBLE_OPERATION,
+    NOT_FOUND,
+    KEY_EXPIRED,
+    UNKNOWN_ERROR,
+    DS_EMPTY,
+    DS_OUT_OF_RANGE,
+    DS_UNKNOWN_ERROR
+};
+
+using TTL = uint32_t;
+
+using Timestamp = std::chrono::steady_clock::time_point;