add tunnel counts to front page of web ui

HTTPServer.cpp

@@ -447,6 +447,13 @@ namespace util
 		s << "<br>\r\n<b>Routers:</b> " << i2p::data::netdb.GetNumRouters () << " ";
 		s << "<b>Floodfills:</b> " << i2p::data::netdb.GetNumFloodfills () << " ";
 		s << "<b>LeaseSets:</b> " << i2p::data::netdb.GetNumLeaseSets () << "<br>\r\n";
+
+    size_t clientTunnelCount = i2p::tunnel::tunnels.CountOutboundTunnels();
+    clientTunnelCount += i2p::tunnel::tunnels.CountInboundTunnels();
+    size_t transitTunnelCount = i2p::tunnel::tunnels.CountTransitTunnels();
+
+    s << "<b>Client Tunnels</b> " << std::to_string(clientTunnelCount) << " ";
+    s << "<b>Transit Tunnels:</b> " << std::to_string(transitTunnelCount) << "<br>\r\n";
 	}
 
 	void HTTPConnection::HandleCommand (const std::string& command, std::stringstream& s)

Tunnel.cpp

@@ -793,7 +793,22 @@ namespace tunnel
 			if (t > timeout) timeout = t;
 		}	
 		return timeout;
-	}	
+	}
+
+  size_t Tunnels::CountTransitTunnels() {
+    // TODO: locking
+    return m_TransitTunnels.size();
+  }
+
+  size_t Tunnels::CountInboundTunnels() {
+    // TODO: locking
+    return m_InboundTunnels.size();
+  }
+
+  size_t Tunnels::CountOutboundTunnels() {
+    // TODO: locking
+    return m_OutboundTunnels.size();
+  }
 }
 }
 

Tunnel.h

@@ -201,6 +201,11 @@ 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; };
+
+      size_t CountTransitTunnels();
+      size_t CountInboundTunnels();
+      size_t CountOutboundTunnels();
+
 			int GetQueueSize () { return m_Queue.GetSize (); };
 			int GetTunnelCreationSuccessRate () const // in percents
 			{