restructure build to separate the 3 main components into 3 subdirectories

libi2pd for core libs

libi2pd_client for i2pd client libs

daemon for i2pd daemon libs

libi2pd/TunnelEndpoint.h

@@ -0,0 +1,57 @@
+#ifndef TUNNEL_ENDPOINT_H__
+#define TUNNEL_ENDPOINT_H__
+
+#include <inttypes.h>
+#include <map>
+#include <string>
+#include "I2NPProtocol.h"
+#include "TunnelBase.h"
+
+namespace i2p
+{
+namespace tunnel
+{
+	class TunnelEndpoint
+	{	
+		struct TunnelMessageBlockEx: public TunnelMessageBlock
+		{
+			uint64_t receiveTime; // milliseconds since epoch
+			uint8_t nextFragmentNum;
+		};	
+
+		struct Fragment
+		{
+			bool isLastFragment;
+			std::shared_ptr<I2NPMessage> data;
+			uint64_t receiveTime; // milliseconds since epoch
+		};	
+		
+		public:
+
+			TunnelEndpoint (bool isInbound): m_IsInbound (isInbound), m_NumReceivedBytes (0) {};
+			~TunnelEndpoint ();
+			size_t GetNumReceivedBytes () const { return m_NumReceivedBytes; };
+			void Cleanup ();			
+
+			void HandleDecryptedTunnelDataMsg (std::shared_ptr<I2NPMessage> msg);
+
+		private:
+
+			void HandleFollowOnFragment (uint32_t msgID, bool isLastFragment, const TunnelMessageBlockEx& m);
+			void HandleNextMessage (const TunnelMessageBlock& msg);
+
+			void AddOutOfSequenceFragment (uint32_t msgID, uint8_t fragmentNum, bool isLastFragment, std::shared_ptr<I2NPMessage> data);
+			bool ConcatNextOutOfSequenceFragment (uint32_t msgID, TunnelMessageBlockEx& msg); // true if something added
+			void HandleOutOfSequenceFragments (uint32_t msgID, TunnelMessageBlockEx& msg);			
+
+		private:			
+
+			std::map<uint32_t, TunnelMessageBlockEx> m_IncompleteMessages;
+			std::map<std::pair<uint32_t, uint8_t>, Fragment> m_OutOfSequenceFragments; // (msgID, fragment#)->fragment
+			bool m_IsInbound;
+			size_t m_NumReceivedBytes;
+	};	
+}		
+}
+
+#endif