don't return expired LeaseSet

Destination.cpp

@@ -202,7 +202,12 @@ namespace client
 				return remoteLS;
 			}
 			else
+			{
 				LogPrint (eLogWarning, "Destination: remote LeaseSet expired");
+				std::lock_guard<std::mutex> lock(m_RemoteLeaseSetsMutex);
+				m_RemoteLeaseSets.erase (ident);
+				return nullptr;
+			}
 		}	
 		else
 		{	
@@ -223,12 +228,16 @@ namespace client
 		if (!m_Pool) return nullptr;
 		if (!m_LeaseSet)
 			UpdateLeaseSet ();
+		std::lock_guard<std::mutex> l(m_LeaseSetMutex);
 		return m_LeaseSet;
 	}	
 
 	void LeaseSetDestination::SetLeaseSet (i2p::data::LocalLeaseSet * newLeaseSet)
 	{
+		{	
+			std::lock_guard<std::mutex> l(m_LeaseSetMutex);
 			m_LeaseSet.reset (newLeaseSet);
+		}
 		i2p::garlic::GarlicDestination::SetLeaseSetUpdated ();
 		if (m_IsPublic)
 		{

Destination.h

@@ -131,6 +131,7 @@ namespace client
 			std::map<i2p::data::IdentHash, std::shared_ptr<LeaseSetRequest> > m_LeaseSetRequests;
 
 			std::shared_ptr<i2p::tunnel::TunnelPool> m_Pool;
+			std::mutex m_LeaseSetMutex;
 			std::shared_ptr<i2p::data::LocalLeaseSet> m_LeaseSet;
 			bool m_IsPublic;
 			uint32_t m_PublishReplyToken;