update local destination if changed

libi2pd_client/ClientContext.cpp

@@ -567,6 +567,11 @@ namespace client
 						else
 						{
 							// TODO: update
+							if (ins.first->second->GetLocalDestination () != clientTunnel->GetLocalDestination ())
+							{
+								LogPrint (eLogInfo, "Clients: I2P client tunnel destination updated");
+								ins.first->second->SetLocalDestination (clientTunnel->GetLocalDestination ());
+							}
 							ins.first->second->isUpdated = true;
 							LogPrint (eLogInfo, "Clients: I2P client tunnel for endpoint ", clientEndpoint, " already exists");
 						}
@@ -673,6 +678,11 @@ namespace client
 					else
 					{
 						// TODO: update
+						if (ins.first->second->GetLocalDestination () != serverTunnel->GetLocalDestination ())
+						{
+							LogPrint (eLogInfo, "Clients: I2P server tunnel destination updated");
+							ins.first->second->SetLocalDestination (serverTunnel->GetLocalDestination ());
+						}
 						ins.first->second->isUpdated = true;
 						LogPrint (eLogInfo, "Clients: I2P server tunnel for destination/port ",   m_AddressBook.ToAddress(localDestination->GetIdentHash ()), "/", inPort, " already exists");
 					}

libi2pd_client/I2PService.h

@@ -41,7 +41,12 @@ namespace client
 
 			inline std::shared_ptr<ClientDestination> GetLocalDestination () { return m_LocalDestination; }
 			inline std::shared_ptr<const ClientDestination> GetLocalDestination () const  { return m_LocalDestination; }
-			inline void SetLocalDestination (std::shared_ptr<ClientDestination> dest) { m_LocalDestination = dest; }
+			inline void SetLocalDestination (std::shared_ptr<ClientDestination> dest) 
+			{ 
+				if (m_LocalDestination) m_LocalDestination->Release ();
+				if (dest) dest->Acquire ();
+				m_LocalDestination = dest; 
+			}
 			void CreateStream (StreamRequestComplete streamRequestComplete, const std::string& dest, int port = 0);
       void CreateStream(StreamRequestComplete complete, const i2p::data::IdentHash & ident, int port);
 			inline boost::asio::io_service& GetService () { return m_LocalDestination->GetService (); }