manage tunnel pools

HTTPServer.cpp

@@ -148,6 +148,17 @@ namespace util
 			s << " " << (int)it.second->GetNumReceivedBytes () << "<BR>";
 		}	
 
+		s << "<P>Tunnel pools</P>";
+		for (auto it: i2p::tunnel::tunnels.GetTunnelPools ())
+		{
+			for (auto it1: it->GetInboundTunnels ())
+			{
+				it1->GetTunnelConfig ()->Print (s);
+				s << " " << (int)it1->GetNumReceivedBytes () << "<BR>";
+			}	
+			s << "<BR>";
+		}
+		
 		s << "<P>Transit tunnels</P>";
 		for (auto it: i2p::tunnel::tunnels.GetTransitTunnels ())
 		{	

Streaming.cpp

@@ -300,7 +300,7 @@ namespace stream
 		
 	StreamingDestination * sharedLocalDestination = nullptr;	
 
-	StreamingDestination::StreamingDestination (): m_TunnelPool (this), m_LeaseSet (nullptr)
+	StreamingDestination::StreamingDestination (): m_LeaseSet (nullptr)
 	{		
 		// TODO: read from file later
 		m_Keys = i2p::data::CreateRandomKeys ();
@@ -308,6 +308,7 @@ namespace stream
 		m_IdentHash = i2p::data::CalculateIdentHash (m_Identity);
 		m_SigningPrivateKey.Initialize (i2p::crypto::dsap, i2p::crypto::dsaq, i2p::crypto::dsag, 
 			CryptoPP::Integer (m_Keys.signingPrivateKey, 20));
+		i2p::tunnel::tunnels.CreateTunnelPool (this);
 	}
 
 	StreamingDestination::~StreamingDestination ()
@@ -316,16 +317,6 @@ namespace stream
 			DeleteI2NPMessage (m_LeaseSet);
 	}	
 	
-	void StreamingDestination::Start ()
-	{
-		m_TunnelPool.CreateTunnels ();
-	}
-
-	void StreamingDestination::Stop ()
-	{
-		// TODO:
-	}	
-	
 	void StreamingDestination::HandleNextPacket (Packet * packet)
 	{
 		uint32_t sendStreamID = packet->GetSendStreamID ();

Streaming.h

@@ -11,7 +11,6 @@
 #include "LeaseSet.h"
 #include "I2NPProtocol.h"
 #include "Tunnel.h"
-#include "TunnelPool.h"
 
 namespace i2p
 {
@@ -104,8 +103,6 @@ namespace stream
 
 			StreamingDestination ();
 			~StreamingDestination ();	
-			void Start ();
-			void Stop ();			
 
 			const i2p::data::Keys& GetKeys () const { return m_Keys; };
 			const i2p::data::Identity& GetIdentity () const { return m_Identity; }; 
@@ -130,7 +127,6 @@ namespace stream
 			i2p::data::Identity m_Identity;
 			i2p::data::IdentHash m_IdentHash;
 
-			i2p::tunnel::TunnelPool m_TunnelPool;
 			I2NPMessage * m_LeaseSet;
 			
 			CryptoPP::DSA::PrivateKey m_SigningPrivateKey;

Tunnel.cpp

@@ -186,6 +186,10 @@ namespace tunnel
 		for (auto& it : m_PendingTunnels)
 			delete it.second;
 		m_PendingTunnels.clear ();
+
+		for (auto& it: m_Pools)
+			delete it;
+		m_Pools.clear ();
 	}	
 	
 	InboundTunnel * Tunnels::GetInboundTunnel (uint32_t tunnelID)
@@ -269,6 +273,11 @@ namespace tunnel
 		return tunnel;*/
 	}	
 
+	void Tunnels::CreateTunnelPool (i2p::data::LocalDestination * localDestination)
+	{
+		m_Pools.push_back (new TunnelPool (localDestination));
+	}	
+	
 	void Tunnels::AddTransitTunnel (TransitTunnel * tunnel)
 	{
 		m_TransitTunnels[tunnel->GetTunnelID ()] = tunnel;
@@ -343,9 +352,6 @@ namespace tunnel
 		for (auto& it : m_PendingTunnels)
 		{	
 			LogPrint ("Pending tunnel build request ", it.first, " has not been responded. Deleted");
-			auto pool = it.second->GetTunnelPool ();
-			if (pool)
-				pool->TunnelCreationFailed (it.second);
 			delete it.second;
 		}	
 		m_PendingTunnels.clear ();
@@ -353,6 +359,7 @@ namespace tunnel
 		ManageInboundTunnels ();
 		ManageOutboundTunnels ();
 		ManageTransitTunnels ();
+		ManageTunnelPools ();
 		
 	/*	if (!m_IsTunnelCreated)
 		{	
@@ -421,9 +428,6 @@ namespace tunnel
 			if (ts > it->second->GetCreationTime () + TUNNEL_EXPIRATION_TIMEOUT)
 			{
 				LogPrint ("Tunnel ", it->second->GetTunnelID (), " expired");
-				auto pool = it->second->GetTunnelPool ();
-				if (pool)
-					pool->TunnelExpired (it->second);
 				it = m_InboundTunnels.erase (it);
 			}	
 			else 
@@ -481,6 +485,12 @@ namespace tunnel
 		}
 	}	
 
+	void Tunnels::ManageTunnelPools ()
+	{
+		for (auto& it: m_Pools)
+			it->ManageTunnels ();
+	}	
+	
 	void Tunnels::PostTunnelData (I2NPMessage * msg)
 	{
 		if (msg) m_Queue.Put (msg);		
@@ -503,15 +513,15 @@ namespace tunnel
 
 	void Tunnels::AddInboundTunnel (InboundTunnel * newTunnel)
 	{
-		m_InboundTunnels[newTunnel->GetTunnelID ()] = newTunnel;
 		auto pool = newTunnel->GetTunnelPool ();
-		if (pool)
-			pool->TunnelCreated (newTunnel);
-		else
+		if (!pool)
 		{
+			m_InboundTunnels[newTunnel->GetTunnelID ()] = newTunnel;
 			// build symmetric outbound tunnel
 			CreateTunnel<OutboundTunnel> (newTunnel->GetTunnelConfig ()->Invert (), GetNextOutboundTunnel ());		
 		}
+		else
+			pool->TunnelCreated (newTunnel);
 	}	
 
 	

Tunnel.h

@@ -105,7 +105,6 @@ namespace tunnel
 
 			Tunnels ();
 			~Tunnels ();
-
 			void Start ();
 			void Stop ();		
 			
@@ -121,6 +120,7 @@ namespace tunnel
 			void PostTunnelData (I2NPMessage * msg);
 			template<class TTunnel>
 			TTunnel * CreateTunnel (TunnelConfig * config, OutboundTunnel * outboundTunnel = 0);
+			void CreateTunnelPool (i2p::data::LocalDestination * localDestination);
 			
 			OutboundTunnel * CreateOneHopOutboundTestTunnel (InboundTunnel * replyTunnel);
 			InboundTunnel * CreateOneHopInboundTestTunnel (OutboundTunnel * outboundTunnel = 0);
@@ -134,6 +134,7 @@ namespace tunnel
 			void ManageOutboundTunnels ();
 			void ManageInboundTunnels ();
 			void ManageTransitTunnels ();
+			void ManageTunnelPools ();
 			
 			void CreateZeroHopsInboundTunnel ();
 			
@@ -147,6 +148,7 @@ namespace tunnel
 			std::map<uint32_t, InboundTunnel *> m_InboundTunnels;
 			std::list<OutboundTunnel *> m_OutboundTunnels;
 			std::map<uint32_t, TransitTunnel *> m_TransitTunnels;
+			std::list<TunnelPool *> m_Pools;
 			i2p::util::Queue<I2NPMessage> m_Queue;
 
 		public:
@@ -155,6 +157,7 @@ namespace tunnel
 			const decltype(m_OutboundTunnels)& GetOutboundTunnels () const { return m_OutboundTunnels; };
 			const decltype(m_InboundTunnels)& GetInboundTunnels () const { return m_InboundTunnels; };
 			const decltype(m_TransitTunnels)& GetTransitTunnels () const { return m_TransitTunnels; };
+			const decltype(m_Pools)& GetTunnelPools () const { return m_Pools; };
 	};	
 
 	extern Tunnels tunnels;

TunnelPool.cpp

@@ -1,5 +1,6 @@
 #include "Tunnel.h"
 #include "NetDb.h"
+#include "Timestamp.h"
 #include "TunnelPool.h"
 
 namespace i2p
@@ -14,19 +15,7 @@ namespace tunnel
 	TunnelPool::~TunnelPool ()
 	{
 		for (auto it: m_InboundTunnels)
-			it->SetTunnelPool (nullptr);
-	}
-
-	void TunnelPool::TunnelCreationFailed (Tunnel * failedTunnel)
-	{
-		CreateInboundTunnel ();
-	}	
-
-	void TunnelPool::TunnelExpired (InboundTunnel * expiredTunnel)
-	{
-		CreateInboundTunnel ();
-		if (m_Owner)
-			m_Owner->UpdateLeaseSet ();
+			delete it;
 	}
 
 	void TunnelPool::TunnelCreated (InboundTunnel * createdTunnel)
@@ -49,7 +38,8 @@ namespace tunnel
 
 	void TunnelPool::CreateTunnels ()
 	{
-		for (int i = 0; i < m_NumTunnels; i++)
+		int num = m_InboundTunnels.size ();
+		for (int i = num; i < m_NumTunnels; i++)
 			CreateInboundTunnel ();	
 	}
 
@@ -67,5 +57,25 @@ namespace tunnel
 			outboundTunnel);
 			tunnel->SetTunnelPool (this);
 	}
+
+	void TunnelPool::ManageTunnels ()
+	{
+		uint64_t ts = i2p::util::GetSecondsSinceEpoch ();
+		bool isLeaseSetUpdated = false;
+		for (auto it = m_InboundTunnels.begin (); it != m_InboundTunnels.end ();)
+		{
+			if (ts > (*it)->GetCreationTime () + TUNNEL_EXPIRATION_TIMEOUT)
+			{
+				LogPrint ("Destination tunnel ", (*it)->GetTunnelID (), " expired");
+				m_InboundTunnels.erase (it++);
+				isLeaseSetUpdated = true;
+			}	
+			else 
+				++it;
+		}
+		CreateTunnels ();
+		if (isLeaseSetUpdated && m_Owner)
+			m_Owner->UpdateLeaseSet ();
+	}	
 }
 }

TunnelPool.h

@@ -24,11 +24,9 @@ namespace tunnel
 			~TunnelPool ();
 
 			void CreateTunnels ();
-			std::vector<InboundTunnel *> GetInboundTunnels (int num) const;
-
-			void TunnelCreationFailed (Tunnel * failedTunnel);
-			void TunnelExpired (InboundTunnel * expiredTunnel);
 			void TunnelCreated (InboundTunnel * createdTunnel);
+			std::vector<InboundTunnel *> GetInboundTunnels (int num) const;
+			void ManageTunnels ();
 	
 		private:
 
@@ -39,6 +37,11 @@ namespace tunnel
 			i2p::data::LocalDestination * m_Owner;
 			int m_NumTunnels;
 			std::set<InboundTunnel *, TunnelCreationTimeCmp> m_InboundTunnels; // recent tunnel appears first
+
+		public:
+
+			// for HTTP only
+			const decltype(m_InboundTunnels)& GetInboundTunnels () const { return m_InboundTunnels; };
 	};	
 }
 }