fixed race condition

Tunnel.cpp

@@ -301,6 +301,7 @@ namespace tunnel
 	
 	void Tunnels::AddTransitTunnel (TransitTunnel * tunnel)
 	{
+		std::unique_lock<std::mutex> l(m_TransitTunnelsMutex);
 		m_TransitTunnels[tunnel->GetTunnelID ()] = tunnel;
 	}	
 
@@ -490,7 +491,10 @@ namespace tunnel
 			{
 				LogPrint ("Transit tunnel ", it->second->GetTunnelID (), " expired");
 				auto tmp = it->second;
+				{
+					std::unique_lock<std::mutex> l(m_TransitTunnelsMutex);
 					it = m_TransitTunnels.erase (it);
+				}	
 				delete tmp;
 			}	
 			else 

Tunnel.h

@@ -152,6 +152,7 @@ namespace tunnel
 			std::map<uint32_t, InboundTunnel *> m_InboundTunnels;
 			std::mutex m_OutboundTunnelsMutex;
 			std::list<OutboundTunnel *> m_OutboundTunnels;
+			std::mutex m_TransitTunnelsMutex;
 			std::map<uint32_t, TransitTunnel *> m_TransitTunnels;
 			std::map<i2p::data::IdentHash, TunnelPool *> m_Pools;
 			TunnelPool * m_ExploratoryPool;

TunnelPool.cpp

@@ -260,6 +260,8 @@ namespace tunnel
 				new TunnelConfig (hops, inboundTunnel->GetTunnelConfig ()));
 			tunnel->SetTunnelPool (this);
 		}	
+		else
+			LogPrint ("Can't create outbound tunnel. No inbound tunnels found");
 	}	
 
 	void TunnelPool::RecreateOutboundTunnel (OutboundTunnel * tunnel)
@@ -267,10 +269,15 @@ namespace tunnel
 		InboundTunnel * inboundTunnel = GetNextInboundTunnel ();
 		if (!inboundTunnel)
 			inboundTunnel = tunnels.GetNextInboundTunnel ();
+		if (inboundTunnel)
+		{	
 			LogPrint ("Re-creating destination outbound tunnel...");
 			auto * newTunnel = tunnels.CreateTunnel<OutboundTunnel> (
 				tunnel->GetTunnelConfig ()->Clone (inboundTunnel->GetTunnelConfig ()));
 			newTunnel->SetTunnelPool (this);
 		}	
+		else
+			LogPrint ("Can't re-create outbound tunnel. No inbound tunnels found");
+	}			
 }
 }