reduced memory footprint

NTCPSession.cpp

@@ -525,7 +525,7 @@ namespace transport
 						memcpy (m_ReceiveBuffer, nextBlock, m_ReceiveBufferOffset);
 
 					// try to read more
-					if (numReloads < 5)
+					if (numReloads < 16) // ~16K 
 					{	
 						boost::system::error_code ec;
 						size_t moreBytes = m_Socket.available(ec);
@@ -541,9 +541,12 @@ namespace transport
 								return;
 							}	
 							m_NumReceivedBytes += moreBytes;
+							i2p::transport::transports.UpdateReceivedBytes (bytes_transferred);
 							m_ReceiveBufferOffset += moreBytes;
 							numReloads++;
-						}	
+						}
+						else
+							break; // no more data	
 					}	
 				}	
 				while (m_ReceiveBufferOffset >= 16);

NTCPSession.h

@@ -35,12 +35,11 @@ namespace transport
 	};	
 
 	const size_t NTCP_MAX_MESSAGE_SIZE = 16384; 
-	const size_t NTCP_BUFFER_SIZE = 4160; // fits 4 tunnel messages (4*1028)
+	const size_t NTCP_BUFFER_SIZE = 1028; // fits 1 tunnel data message
 	const int NTCP_CONNECT_TIMEOUT = 5; // 5 seconds
 	const int NTCP_TERMINATION_TIMEOUT = 120; // 2 minutes
 	const int NTCP_TERMINATION_CHECK_TIMEOUT = 30; // 30 seconds	
 	const size_t NTCP_DEFAULT_PHASE3_SIZE = 2/*size*/ + i2p::data::DEFAULT_IDENTITY_SIZE/*387*/ + 4/*ts*/ + 15/*padding*/ + 40/*signature*/; // 448 	
-	const int NTCP_BAN_EXPIRATION_TIMEOUT = 70; // in second
 	const int NTCP_CLOCK_SKEW = 60; // in seconds 
 	const int NTCP_MAX_OUTGOING_QUEUE_SIZE = 200; // how many messages we can queue up