/// <summary>
/// Get the Number Message of a specific sent message
/// </summary>
/// <param name="FID">Message's FID</param>
/// <param name="Command">Message's command</param>
/// <returns>Number Message</returns>
/// <remarks>This function use the FID if the frame window is greater than 1, otherwise use the command</remarks>
public uint Response(byte FID, byte Command)
{
uint numMessage = (uint)0;
CMessageCom message = null;
if (m_frameWindow > 1)
{
for (var i = 0; i <= m_Messages.Count - 1; i++)
{
if (m_Messages[i].FID() == FID)
{
message = m_Messages[i];
m_Messages.RemoveAt(System.Convert.ToInt32(i));
break;
}
}
}
else
{
if (m_Messages.Count > 0)
{
if (m_Messages[0].Command() == Command)
{
message = m_Messages[0];
m_Messages.RemoveAt(0);
}
}
}
if (message != null)
{
//Desactivamos el timer de timeout ya que no esperamos respuesta
m_TimerConnectTimeOut.Change(Timeout.Infinite, Timeout.Infinite); //Stop the Timer
m_ToSendFrameWindow++;
numMessage = message.NumberMessage();
//Si no hay mas mensajes para enviar empezamos el mantenimiento de la conexión
if (m_Messages.Count == 0)
{
m_TimerConnectMaintenance.Change(TIMER_CONNECT_MAINTENANCE, TIMER_CONNECT_MAINTENANCE); //Start the Timer
}
}
TryToSend();
return(numMessage);
}
private void ConnectMaintenance(byte address)
{
//Incrementamos el Number Message
m_NumberMessage = System.Convert.ToUInt32(m_NumberMessage + 1);
//Incrementamos el FID
if (m_FID >= MAX_FID)
{
m_FID = (byte)0;
}
m_FID += 1;
// 11/05/2016 Se cambia a SYN (como originalmente)
CMessageCom message = new CMessageCom((uint)0, m_FID, (byte)EnumCommandFrame.M_SYN, new byte[] { }, address);
SendMessage(message);
}
/// <summary>
/// Send messages until the pending messages to response is equal to the frame window
/// </summary>
private void TryToSend()
{
while (m_ToSendFrameWindow > 0)
{
CMessageCom message = ReadMessage();
if (ReferenceEquals(message, null))
{
break;
}
else
{
//Decrementamos la ventana de mensajes
m_ToSendFrameWindow--;
//Activamos el timer de timeout
m_TimerConnectTimeOut.Change(Timeout.Infinite, Timeout.Infinite); //Stop the Timer
if (message.DelayedResponse)
{
//No desactivamos el mantenimiento de la conexión ya que el tiempo de respuesta es demasiado elevado
m_TimerConnectMaintenance.Change(TIMER_CONNECT_MAINTENANCE, TIMER_CONNECT_MAINTENANCE); //Start the Timer
m_TimerConnectTimeOut.Change(TIME_TIMEOUT_MESSAGE_DELAYED_RESPONSE, TIME_TIMEOUT_MESSAGE_DELAYED_RESPONSE); //Start the Timer
}
else
{
//Desactivamos el mantenimiento de la conexión
m_TimerConnectMaintenance.Change(Timeout.Infinite, Timeout.Infinite); //Stop the Timer
m_TimerConnectTimeOut.Change(TIME_TIMEOUT_MESSAGE, TIME_TIMEOUT_MESSAGE); //Start the Timer
}
//FIXME . Modo BURST solo se utiliza para la DME.
//Para la DME todas las comunicaciones van contra la dirección 0x00 pero cuando se envía un ACK se tiene que hacer contra la 0x10, sino, responde NACK
if (m_frameWindow > 1 & message.Command() == (byte)EnumCommandFrame.M_ACK)
{
message.Address = (byte)(0x10);
}
if (SendMessageEvent != null)
{
SendMessageEvent(message);
}
}
}
}
public uint Send(byte[] Datos, byte command, byte address, bool delayedResponse = false)
{
//Incrementamos el Number Message
m_NumberMessage = System.Convert.ToUInt32(m_NumberMessage + 1);
uint NumMessage = m_NumberMessage;
//Incrementamos el FID
if (m_FID >= MAX_FID)
{
m_FID = (byte)0;
}
m_FID += 1;
//Creamos el mensaje
CMessageCom message = new CMessageCom(m_NumberMessage, m_FID, command, Datos, address);
message.DelayedResponse = delayedResponse;
CStackMessages stackAddressMessages = null;
m_mutexStackAddressMessages.WaitOne();
//Los broadcast los enviamos directamente
if ((address & (byte)EnumAddress.MASK_BROADCAST_ADDRESS) != (byte)EnumAddress.MASK_BROADCAST_ADDRESS)
{
//Si existe la cola lo ponemos en cola, sino, lo enviamos directamente
if (StackAddressMessageContains(address & (byte)EnumAddress.MASK_STATION_ADDRESS))
{
stackAddressMessages = StackAddressMessageGet(address & (byte)EnumAddress.MASK_STATION_ADDRESS);
}
}
m_mutexStackAddressMessages.Release();
if (stackAddressMessages != null)
{
stackAddressMessages.Add(message);
}
else
{
SendMessage(message);
}
return(NumMessage);
}
private void SendMessage(CMessageCom message)
{
m_mutexStackDll.WaitOne();
if (m_StackDll != null)
{
m_StackDll.SendData(message.Data(), message.Address, message.Command(), message.FID(), message.Response());
}
m_mutexStackDll.Release();
//Se notifica de los Reset para poder continuar con el updater en las estaciones de protocolo 1
if (message.Command() == (byte)EnumCommandFrame.M_RESET)
{
if (ResetSendedEvent != null)
{
ResetSendedEvent(message.Address);
}
}
}
/// <summary>
/// Manage a timeout communication. Tries to resend the message. If attempts have been exhausted, raise an event
/// </summary>
/// <param name="state">Timer state</param>
private void Elapsed_ConnectTimeOut(object state)
{
m_TimerConnectTimeOut.Change(Timeout.Infinite, Timeout.Infinite); //Stop the Timer
if (m_Messages.Count > 0)
{
CMessageCom message = m_Messages[0];
if (message.TriesRemaining() > 0)
{
message.DecrementTriesRemaining();
m_Messages[0] = message;
if (message.DelayedResponse)
{
m_TimerConnectTimeOut.Change(TIME_TIMEOUT_MESSAGE_DELAYED_RESPONSE, TIME_TIMEOUT_MESSAGE_DELAYED_RESPONSE); //Start the Timer
}
else
{
m_TimerConnectTimeOut.Change(TIME_TIMEOUT_MESSAGE, TIME_TIMEOUT_MESSAGE); //Start the Timer
}
if (SendMessageEvent != null)
{
SendMessageEvent(message);
}
}
else
{
m_Messages.RemoveAt(0);
if (ConnectionTimeOutEvent != null)
{
ConnectionTimeOutEvent(m_address, message.Command());
}
}
}
}
/// <summary>
/// Get the next message to send in the FIFO list
/// </summary>
/// <returns>Message to send</returns>
private CMessageCom ReadMessage()
{
CMessageCom message = null;
//Si está en modo BURST envía el siguiente que todavía no haya enviado
if (m_frameWindow > 1)
{
for (var i = 0; i <= m_Messages.Count - 1; i++)
{
if (m_Messages[i].TriesRemaining() == CMessageCom.MAX_MESSAGE_TRIES)
{
message = m_Messages[i];
message.DecrementTriesRemaining();
m_Messages[i] = message;
break;
}
}
//Si está en modo SINGLE envía el primero
}
else
{
if (m_Messages.Count > 0)
{
if (m_Messages[0].TriesRemaining() == CMessageCom.MAX_MESSAGE_TRIES)
{
message = m_Messages[0];
message.DecrementTriesRemaining();
m_Messages[0] = message;
}
}
}
return(message);
}
private void DataReceived(byte Origen, byte Command, byte[] Data, byte FID, bool Response)
{
uint NumMessage = (uint)0;
CStackMessages stackAddressMessages = null;
//Si es un HandShake respondemos directamente
if (Command == (byte)EnumCommandFrame.M_NULL)
{
if (Response)
{
return;
}
byte[] Datos = new byte[1];
Datos[0] = (byte)EnumCommandFrame.M_ACK;
CMessageCom message = new CMessageCom((uint)0, (byte)(0xFD), Command, Datos, Origen, true);
SendMessage(message);
}
else if (Command == (byte)EnumCommandFrame.M_NACK)
{
m_mutexStackAddressMessages.WaitOne();
if (m_htStackAddressMessages != null)
{
//Respuesta de una dirección a la que hemos enviado un mensaje
if (StackAddressMessageContains(Origen & (byte)EnumAddress.MASK_STATION_ADDRESS))
{
stackAddressMessages = StackAddressMessageGet(Origen & (byte)EnumAddress.MASK_STATION_ADDRESS);
}
}
m_mutexStackAddressMessages.Release();
//Recuperar número de mensaje y eliminarlo de la lista
if (stackAddressMessages != null)
{
NumMessage = stackAddressMessages.Response(FID, Data[(byte)EnumErrorFrame.Opcode]);
}
}
else
{
//FIXME . Modo BURST solo se utiliza para la DME.
//Para la DME todas las comunicaciones van contra la dirección 00 pero cuando se envía un ACK se tiene que hacer contra la 10, sino, responde NACK
if (m_flowControlMethod == EnumFrameFlowControl.BURST & Command == (byte)EnumCommandFrame.M_ACK)
{
Origen = (byte)0;
}
m_mutexStackAddressMessages.WaitOne();
if (m_htStackAddressMessages != null)
{
//Respuesta de una dirección a la que hemos enviado un mensaje
if (StackAddressMessageContains(Origen & (byte)EnumAddress.MASK_STATION_ADDRESS))
{
stackAddressMessages = StackAddressMessageGet(Origen & (byte)EnumAddress.MASK_STATION_ADDRESS);
}
}
m_mutexStackAddressMessages.Release();
//Recuperar número de mensaje y eliminarlo de la lista
if (stackAddressMessages != null)
{
NumMessage = stackAddressMessages.Response(FID, Command);
}
}
if (MessageResponseEvent != null)
{
MessageResponseEvent(NumMessage, Data, Command, Origen);
}
}
/// <summary>
/// Add a new message to the FIFO list
/// </summary>
/// <param name="message">New message to send</param>
public void Add(CMessageCom message)
{
m_Messages.Add(message);
TryToSend();
}
