public void SendHeartbeat()
{
if (accessorSocket != null)
{
try
{
accessorSocket.Send(FrameProtocol.HeartbeatSendPacket);
}
catch (Exception e)
{
Console.WriteLine("{0} [{1}] Sending heartbeat threw exception : {2}", DateTime.Now, accessorHost, e.ToString());
accessorSocket = null;
accessorReceiveHandler = null;
}
}
}
public void ReceiveWithTimeout(Byte[] receiveBuffer, Int32 timeoutMillis)
{
Console.WriteLine("{0} [{1}] Select timeout is {2} seconds", DateTime.Now, accessorHostString, timeoutMillis / 1000);
SingleObjectList list = new SingleObjectList(accessorSocket);
try
{
Socket.Select(list, null, null, timeoutMillis * 1000);
}
catch (Exception e)
{
Console.WriteLine("{0} [{1}] Select threw exception : {2}", DateTime.Now, accessorHostString, e.ToString());
accessorSocket = null;
accessorReceiveHandler = null;
return;
}
if (list.obj != null)
{
Int32 bytesRead = 0;
try
{
bytesRead = accessorSocket.Receive(receiveBuffer);
}
catch (Exception)
{
}
if (bytesRead <= 0)
{
accessorSocket = null;
accessorReceiveHandler = null;
}
else
{
accessorReceiveHandler.HandleData(receiveBuffer, 0, (UInt32)bytesRead);
}
}
}
public Boolean TryConnectAndInitialize(TlsSettings tlsSettings, Buf sendBuffer, ServerInfo serverInfo /*, SelectTunnelsThread tunnelsThread*/)
{
if (Connected)
{
throw new InvalidOperationException(String.Format(
"You called Connect() on accessor '{0}' but its already connected", accessorHostString));
}
try
{
accessorSocket = NewSocketConnection(ref accessorHost);
//
// Send initial connection information
//
Boolean setupTls = tlsSettings.requireTlsForTmpConnections;
Byte[] connectionInfoPacket = new Byte[] { Tmp.CreateConnectionInfoFromTmpServerToAccessor(
tlsSettings.requireTlsForTmpConnections, false) };
accessorSocket.Send(connectionInfoPacket);
//
// Only receive packet if tls was not required
//
if (!tlsSettings.requireTlsForTmpConnections)
{
int bytesRead = accessorSocket.Receive(connectionInfoPacket, 0, 1, SocketFlags.None);
if (bytesRead <= 0)
{
throw new SocketException();
}
setupTls = Tmp.ReadTlsRequirementFromAccessorToTmpServer(connectionInfoPacket[0]);
}
DataHandler accessorSendHandler = new SocketSendDataHandler(accessorSocket).HandleData;
this.accessorReceiveHandler = new DataFilterHandler(new FrameProtocolFilter(),
new TmpServerHandler(this, tlsSettings /*, tunnelsThread*/));
//
// Initiate a tls connection if required
//
if (setupTls)
{
throw new NotImplementedException("Tls not yet implemented");
}
//
// Send server info
//
UInt32 commandLength = Tmp.SerializeCommand(ServerInfo.Serializer, Tmp.ToAccessorServerInfoID, serverInfo, sendBuffer, 0);
accessorSendHandler(sendBuffer.array, 0, commandLength);
return(true);
}
catch (Exception)
{
this.accessorSocket = null;
this.accessorReceiveHandler = null;
return(false);
}
}
