send batch of I2NP messages

NTCPSession.cpp

@@ -617,6 +617,17 @@ namespace transport
 		if (msg)
 			Send (msg);
 	}	
+
+	void NTCPSession::SendI2NPMessages (const std::vector<I2NPMessage *>& msgs)
+	{
+		m_Server.GetService ().post (std::bind (&NTCPSession::PostI2NPMessages, shared_from_this (), msgs));  
+	}	
+
+	void NTCPSession::PostI2NPMessages (std::vector<I2NPMessage *> msgs)
+	{
+		for (auto it: msgs)
+			if (it) Send (it);
+	}	
 		
 	void NTCPSession::ScheduleTermination ()
 	{

NTCPSession.h

@@ -61,6 +61,7 @@ namespace transport
 			void ClientLogin ();
 			void ServerLogin ();
 			void SendI2NPMessage (I2NPMessage * msg);
+			void SendI2NPMessages (const std::vector<I2NPMessage *>& msgs);
 
 			size_t GetNumSentBytes () const { return m_NumSentBytes; };
 			size_t GetNumReceivedBytes () const { return m_NumReceivedBytes; };
@@ -68,6 +69,7 @@ namespace transport
 		protected:
 
 			void PostI2NPMessage (I2NPMessage * msg);
+			void PostI2NPMessages (std::vector<I2NPMessage *> msgs);
 			void Connected ();
 			void SendTimeSyncMessage ();
 			void SetIsEstablished (bool isEstablished) { m_IsEstablished = isEstablished; }

SSUSession.cpp

@@ -827,7 +827,19 @@ namespace transport
 		if (msg)
 			m_Data.Send (msg);
 	}		
-		
+
+	void SSUSession::SendI2NPMessages (const std::vector<I2NPMessage *>& msgs)
+	{
+		boost::asio::io_service& service = IsV6 () ? m_Server.GetServiceV6 () : m_Server.GetService ();
+		service.post (std::bind (&SSUSession::PostI2NPMessages, shared_from_this (), msgs));    
+	}
+
+	void SSUSession::PostI2NPMessages (std::vector<I2NPMessage *> msgs)
+	{
+		for (auto it: msgs)
+			if (it) m_Data.Send (it);
+	}	
+
 	void SSUSession::ProcessData (uint8_t * buf, size_t len)
 	{
 		m_Data.ProcessMessage (buf, len);

SSUSession.h

@@ -66,6 +66,7 @@ namespace transport
 			boost::asio::ip::udp::endpoint& GetRemoteEndpoint () { return m_RemoteEndpoint; };
 			bool IsV6 () const { return m_RemoteEndpoint.address ().is_v6 (); };
 			void SendI2NPMessage (I2NPMessage * msg);
+			void SendI2NPMessages (const std::vector<I2NPMessage *>& msgs);
 			void SendPeerTest (); // Alice			
 
 			SessionState GetState () const  { return m_State; };
@@ -81,6 +82,7 @@ namespace transport
 			void CreateAESandMacKey (const uint8_t * pubKey); 
 
 			void PostI2NPMessage (I2NPMessage * msg);
+			void PostI2NPMessages (std::vector<I2NPMessage *> msgs);
 			void ProcessMessage (uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& senderEndpoint); // call for established session
 			void ProcessSessionRequest (uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& senderEndpoint);
 			void SendSessionRequest ();

TransportSession.h

@@ -4,6 +4,7 @@
 #include <inttypes.h>
 #include <iostream>
 #include <memory>
+#include <vector>
 #include "Identity.h"
 #include "RouterInfo.h"
 #include "I2NPProtocol.h"
@@ -66,6 +67,7 @@ namespace transport
 			const i2p::data::IdentityEx& GetRemoteIdentity () { return m_RemoteIdentity; };
 
 			virtual void SendI2NPMessage (I2NPMessage * msg) = 0;
+			virtual void SendI2NPMessages (const std::vector<I2NPMessage *>& msgs) = 0;
 			
 		protected:
 

Transports.cpp

@@ -184,6 +184,11 @@ namespace transport
 		m_Service.post (std::bind (&Transports::PostMessage, this, ident, msg));                             
 	}	
 
+	void Transports::SendMessages (const i2p::data::IdentHash& ident, const std::vector<i2p::I2NPMessage *>& msgs)
+	{
+		m_Service.post (std::bind (&Transports::PostMessages, this, ident, msgs));
+	}	
+		
 	void Transports::PostMessage (const i2p::data::IdentHash& ident, i2p::I2NPMessage * msg)
 	{
 		if (ident == i2p::context.GetRouterInfo ().GetIdentHash ())
@@ -210,6 +215,36 @@ namespace transport
 			it->second.delayedMessages.push_back (msg);
 	}	
 
+	void Transports::PostMessages (const i2p::data::IdentHash& ident, std::vector<i2p::I2NPMessage *> msgs)
+	{
+		if (ident == i2p::context.GetRouterInfo ().GetIdentHash ())
+		{	
+			// we send it to ourself
+			for (auto it: msgs)
+				i2p::HandleI2NPMessage (it);
+			return;
+		}	
+		auto it = m_Peers.find (ident);
+		if (it == m_Peers.end ())
+		{
+			auto r = netdb.FindRouter (ident);
+			it = m_Peers.insert (std::pair<i2p::data::IdentHash, Peer>(ident, { 0, r, nullptr})).first;
+			if (!ConnectToPeer (ident, it->second))
+			{
+				for (auto it1: msgs)
+					DeleteI2NPMessage (it1);
+				return;
+			}	
+		}	
+		if (it->second.session)
+			it->second.session->SendI2NPMessages (msgs);
+		else
+		{	
+			for (auto it1: msgs)
+				it->second.delayedMessages.push_back (it1);
+		}	
+	}	
+		
 	bool Transports::ConnectToPeer (const i2p::data::IdentHash& ident, Peer& peer)
 	{
 		if (peer.router) // we have RI already
@@ -365,8 +400,7 @@ namespace transport
 			if (it != m_Peers.end ())
 			{
 				it->second.session = session;
-				for (auto it1: it->second.delayedMessages)
+				session->SendI2NPMessages (it->second.delayedMessages);
-					session->SendI2NPMessage (it1);
 				it->second.delayedMessages.clear ();
 			}
 			else // incoming connection

Transports.h

@@ -6,7 +6,7 @@
 #include <condition_variable>
 #include <functional>
 #include <map>
-#include <list>
+#include <vector>
 #include <queue>
 #include <string>
 #include <memory>
@@ -56,7 +56,7 @@ namespace transport
 		int numAttempts;
 		std::shared_ptr<const i2p::data::RouterInfo> router;
 		std::shared_ptr<TransportSession> session;
-		std::list<i2p::I2NPMessage *> delayedMessages;
+		std::vector<i2p::I2NPMessage *> delayedMessages;
 
 		~Peer ()
 		{
@@ -80,6 +80,7 @@ namespace transport
 			void ReuseDHKeysPair (DHKeysPair * pair);
 
 			void SendMessage (const i2p::data::IdentHash& ident, i2p::I2NPMessage * msg);
+			void SendMessages (const i2p::data::IdentHash& ident, const std::vector<i2p::I2NPMessage *>& msgs);
 			void CloseSession (std::shared_ptr<const i2p::data::RouterInfo> router);
 
 			void PeerConnected (std::shared_ptr<TransportSession> session);
@@ -91,6 +92,7 @@ namespace transport
 			void RequestComplete (std::shared_ptr<const i2p::data::RouterInfo> r, const i2p::data::IdentHash& ident);
 			void HandleRequestComplete (std::shared_ptr<const i2p::data::RouterInfo> r, const i2p::data::IdentHash& ident);
 			void PostMessage (const i2p::data::IdentHash& ident, i2p::I2NPMessage * msg);
+			void PostMessages (const i2p::data::IdentHash& ident, std::vector<i2p::I2NPMessage *> msgs);
 			void PostCloseSession (std::shared_ptr<const i2p::data::RouterInfo> router);
 			bool ConnectToPeer (const i2p::data::IdentHash& ident, Peer& peer);
 			

TunnelGateway.cpp

@@ -188,9 +188,9 @@ namespace tunnel
 		{	
 			m_Tunnel->EncryptTunnelMsg (tunnelMsg);
 			FillI2NPMessageHeader (tunnelMsg, eI2NPTunnelData);
-			i2p::transport::transports.SendMessage (m_Tunnel->GetNextIdentHash (), tunnelMsg);
 			m_NumSentBytes += TUNNEL_DATA_MSG_SIZE;
 		}	
+		i2p::transport::transports.SendMessages (m_Tunnel->GetNextIdentHash (), tunnelMsgs);
 		m_Buffer.ClearTunnelDataMsgs ();
 	}	
 }