initial upload

src/ckitty/memory/data_view.hpp

@@ -0,0 +1,55 @@
+#pragma once
+
+#include <ckitty/memory/primitives.hpp>
+
+namespace ckitty {
+
+    /**
+     * @brief Represents a piece of a shared buffer that
+     * is not owned by this object.
+     */
+    class data_view {
+    private:
+
+        const u8* _begin;
+        const u8* _end;
+
+    public:
+
+        data_view(const u8* begin, const u8* end)
+        : _begin(begin), _end(end) {}
+
+        data_view(const u8* data, const size length)
+        : _begin(data), _end(data + length) {}
+
+        data_view(const std::string& str)
+        : _begin((const u8*) str.begin().base()),
+        _end((const u8*) str.end().base()) {}
+
+        const u8* begin() const {
+            return _begin;
+        }
+
+        const u8* end() const {
+            return _end;
+        }
+
+        u8 operator[](size i) const {
+            return *(_begin + i);
+        }
+
+        size length() const {
+            return _end - _begin;
+        }
+
+        const data_view sub_off(size offset, size length) const {
+            return data_view(_begin + offset, _begin + offset + length);
+        }
+
+        const data_view sub_abs(size begin, size end) const {
+            return data_view(_begin + begin, _begin + end);
+        }
+    
+    };
+
+}