limit delayed messages queue size

Transports.cpp

@@ -263,10 +263,19 @@ namespace transport
 		if (!it->second.sessions.empty ())
 			it->second.sessions.front ()->SendI2NPMessages (msgs);
 		else
+		{	
+			if (it->second.delayedMessages.size () < MAX_NUM_DELAYED_MESSAGES)
 			{	
 				for (auto it1: msgs)
 					it->second.delayedMessages.push_back (it1);
 			}
+			else
+			{
+				LogPrint (eLogWarning, "Transports: delayed messages queue size exceeds ", MAX_NUM_DELAYED_MESSAGES);
+				std::unique_lock<std::mutex> l(m_PeersMutex);	
+				m_Peers.erase (it);
+			}	
+		}	
 	}	
 		
 	bool Transports::ConnectToPeer (const i2p::data::IdentHash& ident, Peer& peer)

Transports.h

@@ -66,6 +66,7 @@ namespace transport
 	};	
 	
 	const size_t SESSION_CREATION_TIMEOUT = 10; // in seconds
+	const int MAX_NUM_DELAYED_MESSAGES = 50; 
 	class Transports
 	{
 		public: