including tftp based shell and sockets from different project

components/project_bases/include/countDown.hpp

@@ -0,0 +1,36 @@
+/**
+ * @file countDown.hpp
+ * @author Gustice
+ * @brief Classes for typical index manipulation
+ *
+ * @copyright Copyright (c) 2020
+ */
+#pragma once
+
+class CountDown {
+  public:
+    CountDown(unsigned max) : Max(max) {}
+
+    void Tick() {
+        _cnt++;
+        if (_cnt >= Max) {
+            _cnt = 0;
+            _pFlag = true;
+        }
+    }
+
+    bool GetVolatileFlag() {
+        if (!_pFlag)
+            return false;
+
+        // Reset _pFlag in any case, so it only be consumed once
+        //  hence volatile
+        _pFlag = false; 
+        return true;
+    }
+
+  private:
+    const unsigned Max;
+    unsigned _cnt;
+    bool _pFlag;
+};