read/write

include/sp/MessageBase.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include <sp/Message.h>
+#include <sp/Templates.h>
 
 namespace sp {
 namespace option {
@@ -100,6 +101,11 @@ class MessageImplFieldsBase : public TBase {
 		return m_Fields;
 	}
 
+	template<std::size_t FIndex>
+	auto& GetField() {
+		return std::get<FIndex>(GetFields()).GetValue();
+	}
+
   private:
 	TFields m_Fields;
 };
@@ -108,9 +114,9 @@ template <typename TBase>
 class MessageImplFieldsReadBase : public TBase {
   protected:
 	void ReadImpl(DataBuffer& buffer) override {
-		// Access fields via interface provided in previous chunk
+		//TODO: add endianess
 		auto& allFields = TBase::GetFields();
-		//...	 // read all the fields
+		tupleForEach(allFields, FieldReader{buffer});
 	}
 };
 
@@ -118,9 +124,9 @@ template <typename TBase>
 class MessageImplFieldsWriteBase : public TBase {
   protected:
 	void WriteImpl(DataBuffer& buffer) override {
-		// Access fields via interface provided in previous chunk
+		//TODO: add endianess
 		auto& allFields = TBase::GetFields();
-		//...	 // write all the fields
+		tupleForEach(allFields, FieldWriter{buffer});
 	}
 };