Rework library without unix sockets for now

server_v2/include/Cache.hpp

@@ -0,0 +1,23 @@
+#ifndef COMPLIB_SERVER_CACHE_HPP
+#define COMPLIB_SERVER_CACHE_HPP
+
+#include <chrono>
+
+class Cache {
+public:
+  explicit Cache(int rate_hz);
+
+  bool is_expired();
+
+  void update();
+
+private:
+
+  typedef std::chrono::steady_clock clock;
+
+  std::chrono::microseconds cache_duration{};
+  std::chrono::time_point<std::chrono::steady_clock> last_update{};
+};
+
+
+#endif //COMPLIB_SERVER_CACHE_HPP