private void OnOperationReceived(InputHeader operation)
{
if (operation.Content.SourceAddress == 0)
{
operation.Content.SourceAddress = this.NodeAddress;
}
if (ConnectionState == ConnectionStates.Identifying &&
operation.Content is OperationMessage &&
((OperationMessage)operation.Content).OpCode == OperationMessage.OPCodes.PingResponse)
{
// Ping response for Indentify
this.NodeAddress = ((OperationMessage)operation.Content).SourceAddress;
this.Identified = true;
this.ConnectionState = ConnectionStates.Connected;
this.InitializeNode();
}
else if (operation.Confirmation != InputHeader.ConfirmationType.None)
{
if (operation.MessageId == this.currentMessageId)
{
Debug.WriteLine(this.PortName + " Confirmation received: " + operation.Confirmation.ToString());
// Data confirmation response
if (pendingConfirmationTask != null && !pendingConfirmationTask.Task.IsCompleted)
{
pendingConfirmationTask.SetResult(operation.Confirmation == InputHeader.ConfirmationType.Ok);
}
}
else if (operation.MessageId < this.currentMessageId)
{
Debug.WriteLine(this.PortName + " Old confirmation received: " + operation.Confirmation.ToString());
}
else if (operation.MessageId == 255)
{
Debug.WriteLine(this.PortName + " Internal confirmation received: " + operation.Confirmation.ToString());
}
}
else
{
Debug.WriteLine(this.PortName + " Operation Message received: " + ((OperationMessage)operation.Content).OpCode.ToString());
if (operation.Content is OperationMessage && ((OperationMessage)operation.Content).OpCode == OperationMessage.OPCodes.WakeUp)
{
// Node just wake up
this.InitializeNode();
}
// Real operation response
if (this.MessageReceived != null)
{
this.MessageReceived(this, operation);
}
}
}
private Filter.OriginTypes GetOriginType(InputHeader message, NodeConnection connection)
{
if (connection.NodeAddress == message.Content.SourceAddress)
{
return(Filter.OriginTypes.FromNode);
}
else if (connection.NodeAddress == MASTER_ADDRESS)
{
return(Filter.OriginTypes.FromMaster);
}
else
{
return(Filter.OriginTypes.Any);
}
}
private async void connection_OperationReceived(object sender, InputHeader e)
{
NodeConnection connection = (NodeConnection)sender;
List <Task> taskList = new List <Task>();
//Send Message to the placeHolders
foreach (var module in this.modulesList.Where(m => m.Filter.CheckMessage(e, GetOriginType(e, connection))))
{
var moduleTask = new Task(() =>
{
module.ProcessReceivedMessage(e.Content);
});
moduleTask.Start();
taskList.Add(moduleTask);
}
await Task.WhenAll(taskList);
}
private void OnOperationReceived(InputHeader operation)
{
if (operation.Content.SourceAddress == 0)
operation.Content.SourceAddress = this.NodeAddress;
if (ConnectionState == ConnectionStates.Identifying &&
operation.Content is OperationMessage &&
((OperationMessage)operation.Content).OpCode == OperationMessage.OPCodes.PingResponse)
{
// Ping response for Indentify
this.NodeAddress = ((OperationMessage)operation.Content).SourceAddress;
this.Identified = true;
this.ConnectionState = ConnectionStates.Connected;
this.InitializeNode();
}
else if (operation.Confirmation != InputHeader.ConfirmationType.None)
{
if (operation.MessageId == this.currentMessageId)
{
Debug.WriteLine(this.PortName + " Confirmation received: " + operation.Confirmation.ToString());
// Data confirmation response
if (pendingConfirmationTask != null && !pendingConfirmationTask.Task.IsCompleted)
pendingConfirmationTask.SetResult(operation.Confirmation == InputHeader.ConfirmationType.Ok);
}
else if (operation.MessageId < this.currentMessageId)
{
Debug.WriteLine(this.PortName + " Old confirmation received: " + operation.Confirmation.ToString());
}
else if (operation.MessageId == 255)
{
Debug.WriteLine(this.PortName + " Internal confirmation received: " + operation.Confirmation.ToString());
}
}
else
{
Debug.WriteLine(this.PortName + " Operation Message received: " + ((OperationMessage)operation.Content).OpCode.ToString());
if (operation.Content is OperationMessage && ((OperationMessage)operation.Content).OpCode == OperationMessage.OPCodes.WakeUp)
{
// Node just wake up
this.InitializeNode();
}
// Real operation response
if (this.MessageReceived != null)
this.MessageReceived(this, operation);
}
}
private void serialPort_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
byte c;
while (this.serialPort.BytesToRead > 0)
{
bool acceptByte = false;
c = (byte)this.serialPort.ReadByte();
switch (this.receiverState)
{
case SerialReceiverStates.IDLE_RX_STATE:
if (APP_MAGIC_SYMBOL == c)
{
this.receiverState = SerialReceiverStates.SOF_RX_STATE;
this.currentReceiverMessage.Clear();
this.checkSum = 0;
}
break;
case SerialReceiverStates.SOF_RX_STATE:
if (SOF[1] == c)
{
this.receiverState = SerialReceiverStates.DATA_RX_STATE;
}
else
{
this.receiverState = SerialReceiverStates.IDLE_RX_STATE;
}
break;
case SerialReceiverStates.DATA_RX_STATE:
if (APP_MAGIC_SYMBOL == c)
{
this.receiverState = SerialReceiverStates.MAGIC_RX_STATE;
}
else
{
acceptByte = true;
}
break;
case SerialReceiverStates.MAGIC_RX_STATE:
if (APP_MAGIC_SYMBOL == c)
{
this.receiverState = SerialReceiverStates.DATA_RX_STATE;
acceptByte = true;
}
else if (EOF[1] == c)
{
this.receiverState = SerialReceiverStates.EOF_RX_STATE;
}
else
{
this.receiverState = SerialReceiverStates.IDLE_RX_STATE;
Debug.Print("INVALID FRAME RECEIVED IN " + this.PortName);
}
break;
case SerialReceiverStates.EOF_RX_STATE:
if (checkSum == c)
{
this.receiverState = SerialReceiverStates.IDLE_RX_STATE;
InputHeader inputMessage = new InputHeader();
inputMessage.FromBinary(this.currentReceiverMessage.ToArray());
OnOperationReceived(inputMessage);
}
else
{
this.receiverState = SerialReceiverStates.IDLE_RX_STATE;
Debug.Print("INVALID CHECKSUM RECEIVED IN " + this.PortName);
}
break;
default:
break;
}
checkSum += c;
if (acceptByte)
{
this.currentReceiverMessage.Add(c);
}
}
}
private void serialPort_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
byte c;
while (this.serialPort.BytesToRead > 0)
{
bool acceptByte = false;
c = (byte)this.serialPort.ReadByte();
switch (this.receiverState)
{
case SerialReceiverStates.IDLE_RX_STATE:
if (APP_MAGIC_SYMBOL == c)
{
this.receiverState = SerialReceiverStates.SOF_RX_STATE;
this.currentReceiverMessage.Clear();
this.checkSum = 0;
}
break;
case SerialReceiverStates.SOF_RX_STATE:
if (SOF[1] == c)
{
this.receiverState = SerialReceiverStates.DATA_RX_STATE;
}
else
{
this.receiverState = SerialReceiverStates.IDLE_RX_STATE;
}
break;
case SerialReceiverStates.DATA_RX_STATE:
if (APP_MAGIC_SYMBOL == c)
{
this.receiverState = SerialReceiverStates.MAGIC_RX_STATE;
}
else
{
acceptByte = true;
}
break;
case SerialReceiverStates.MAGIC_RX_STATE:
if (APP_MAGIC_SYMBOL == c)
{
this.receiverState = SerialReceiverStates.DATA_RX_STATE;
acceptByte = true;
}
else if (EOF[1] == c)
{
this.receiverState = SerialReceiverStates.EOF_RX_STATE;
}
else
{
this.receiverState = SerialReceiverStates.IDLE_RX_STATE;
Debug.Print("INVALID FRAME RECEIVED IN " + this.PortName);
}
break;
case SerialReceiverStates.EOF_RX_STATE:
if (checkSum == c)
{
this.receiverState = SerialReceiverStates.IDLE_RX_STATE;
InputHeader inputMessage = new InputHeader();
inputMessage.FromBinary(this.currentReceiverMessage.ToArray());
OnOperationReceived(inputMessage);
}
else
{
this.receiverState = SerialReceiverStates.IDLE_RX_STATE;
Debug.Print("INVALID CHECKSUM RECEIVED IN " + this.PortName);
}
break;
default:
break;
}
checkSum += c;
if (acceptByte)
{
this.currentReceiverMessage.Add(c);
}
}
}