/// <summary>
/// Read from the serial line if a useful chunk is present.
/// </summary>
/// <remarks>
/// In this case a "useful chunk" means that either the payload size
/// and endpoint of a new message or the complete payload of a message
/// are present.
/// </remarks>
/// <returns>
/// True if there was enough data to read, otherwise false.
/// </returns>
private bool ReadAndProcessBytes()
{
switch (_WaitingState)
{
case WaitingStates.NewMessage:
if (_byteStream.Count >= 4)
{
// Read new payload size and endpoint
_CurrentPayloadSize = Util.GetUInt16(ReadBytes(2));
_CurrentEndpoint = Util.GetUInt16(ReadBytes(2));
_WaitingState = WaitingStates.Payload;
return(true);
}
break;
case WaitingStates.Payload:
if (_byteStream.Count >= _CurrentPayloadSize)
{
// All of the payload's been received, so read it.
var buffer = ReadBytes(_CurrentPayloadSize);
RawMessageReceived(this, new RawMessageReceivedEventArgs(_CurrentEndpoint, buffer));
// Reset state
_WaitingState = WaitingStates.NewMessage;
_CurrentEndpoint = 0;
_CurrentPayloadSize = 0;
return(true);
}
break;
}
// If this hasn't returned yet there wasn't anything interesting to read.
return(false);
}
/// <summary> Read from the serial line if a useful chunk is present.
/// </summary>
/// <remarks>
/// In this case a "useful chunk" means that either the payload size
/// and endpoint of a new message or the complete payload of a message
/// are present.
/// </remarks>
/// <returns>
/// True if there was enough data to read, otherwise false.
/// </returns>
private bool readAndProcess()
{
var endpoint = new byte[2];
var payloadSize = new byte[2];
switch (_WaitingState)
{
case WaitingStates.NewMessage:
if (_SerialPort.BytesToRead >= 4)
{
// Read new payload size and endpoint
_SerialPort.Read(payloadSize, 0, 2);
_SerialPort.Read(endpoint, 0, 2);
if (BitConverter.IsLittleEndian)
{
// Data is transmitted big-endian, so flip.
Array.Reverse(payloadSize);
Array.Reverse(endpoint);
}
_CurrentPayloadSize = BitConverter.ToUInt16(payloadSize, 0);
_CurrentEndpoint = BitConverter.ToUInt16(endpoint, 0);
//Debug.WriteLine( "Message metadata received:" );
//Debug.WriteLine( "\tPLS: " + _CurrentPayloadSize.ToString() );
//Debug.WriteLine( "\tEP: " + _CurrentEndpoint.ToString() );
_WaitingState = WaitingStates.Payload;
return(true);
}
break;
case WaitingStates.Payload:
if (_SerialPort.BytesToRead >= _CurrentPayloadSize)
{
// All of the payload's been received, so read it.
var buffer = new byte[_CurrentPayloadSize];
_SerialPort.Read(buffer, 0, _CurrentPayloadSize);
RawMessageReceived(this, new RawMessageReceivedEventArgs(_CurrentEndpoint, buffer));
// Reset state
_WaitingState = WaitingStates.NewMessage;
_CurrentEndpoint = 0;
_CurrentPayloadSize = 0;
return(true);
}
break;
}
// If this hasn't returned yet there wasn't anything interesting to read.
return(false);
}
/// <summary>
/// Read from the serial line if a useful chunk is present.
/// </summary>
/// <remarks>
/// In this case a "useful chunk" means that either the payload size
/// and endpoint of a new message or the complete payload of a message
/// are present.
/// </remarks>
/// <returns>
/// True if there was enough data to read, otherwise false.
/// </returns>
private bool ReadAndProcessBytes()
{
switch (_WaitingState)
{
case WaitingStates.NewMessage:
if (_byteStream.Count >= 4)
{
// Read new payload size and endpoint
_CurrentPayloadSize = Util.GetUInt16(ReadBytes(2));
_CurrentEndpoint = Util.GetUInt16(ReadBytes(2));
_WaitingState = WaitingStates.Payload;
return(true);
}
break;
case WaitingStates.Payload:
if (_byteStream.Count >= _CurrentPayloadSize)
{
// All of the payload's been received, so read it.
var buffer = ReadBytes(_CurrentPayloadSize);
//byte[] fullPacket = Util.CombineArrays(Util.GetBytes(_CurrentPayloadSize),Util.GetBytes(_CurrentEndpoint),buffer);
//System.Console.WriteLine("RECV:" + ((Endpoint)_CurrentEndpoint));
//LogPacket("RECV", fullPacket);
//Console.WriteLine("RECV:" + ((Endpoint)_CurrentEndpoint).ToString()+"["+buffer.Length+"]");
RawMessageReceived(this, new RawMessageReceivedEventArgs(_CurrentEndpoint, buffer));
// Reset state
_WaitingState = WaitingStates.NewMessage;
_CurrentEndpoint = 0;
_CurrentPayloadSize = 0;
return(true);
}
break;
}
// If this hasn't returned yet there wasn't anything interesting to read.
return(false);
}
/// <summary>
/// Read from the serial line if a useful chunk is present.
/// </summary>
/// <remarks>
/// In this case a "useful chunk" means that either the payload size
/// and endpoint of a new message or the complete payload of a message
/// are present.
/// </remarks>
/// <returns>
/// True if there was enough data to read, otherwise false.
/// </returns>
private bool ReadAndProcessBytes()
{
switch ( _WaitingState )
{
case WaitingStates.NewMessage:
if ( _byteStream.Count >= 4 )
{
// Read new payload size and endpoint
_CurrentPayloadSize = Util.GetUInt16(ReadBytes(2));
_CurrentEndpoint = Util.GetUInt16(ReadBytes(2));
//Debug.WriteLine( "Message metadata received:" );
//Debug.WriteLine( "\tPLS: " + _CurrentPayloadSize.ToString() );
//Debug.WriteLine( "\tEP: " + _CurrentEndpoint.ToString() );
_WaitingState = WaitingStates.Payload;
return true;
}
break;
case WaitingStates.Payload:
if ( _byteStream.Count >= _CurrentPayloadSize )
{
// All of the payload's been received, so read it.
var buffer = ReadBytes(_CurrentPayloadSize);
RawMessageReceived( this, new RawMessageReceivedEventArgs( _CurrentEndpoint, buffer ) );
// Reset state
_WaitingState = WaitingStates.NewMessage;
_CurrentEndpoint = 0;
_CurrentPayloadSize = 0;
return true;
}
break;
}
// If this hasn't returned yet there wasn't anything interesting to read.
return false;
}
/// <summary> Read from the serial line if a useful chunk is present.
/// </summary>
/// <remarks>
/// In this case a "useful chunk" means that either the payload size
/// and endpoint of a new message or the complete payload of a message
/// are present.
/// </remarks>
/// <returns>
/// True if there was enough data to read, otherwise false.
/// </returns>
private bool readAndProcess()
{
var endpoint = new byte[2];
var payloadSize = new byte[2];
switch ( _WaitingState )
{
case WaitingStates.NewMessage:
if ( _SerialPort.BytesToRead >= 4 )
{
// Read new payload size and endpoint
_SerialPort.Read( payloadSize, 0, 2 );
_SerialPort.Read( endpoint, 0, 2 );
if ( BitConverter.IsLittleEndian )
{
// Data is transmitted big-endian, so flip.
Array.Reverse( payloadSize );
Array.Reverse( endpoint );
}
_CurrentPayloadSize = BitConverter.ToUInt16( payloadSize, 0 );
_CurrentEndpoint = BitConverter.ToUInt16( endpoint, 0 );
//Debug.WriteLine( "Message metadata received:" );
//Debug.WriteLine( "\tPLS: " + _CurrentPayloadSize.ToString() );
//Debug.WriteLine( "\tEP: " + _CurrentEndpoint.ToString() );
_WaitingState = WaitingStates.Payload;
return true;
}
break;
case WaitingStates.Payload:
if ( _SerialPort.BytesToRead >= _CurrentPayloadSize )
{
// All of the payload's been received, so read it.
var buffer = new byte[_CurrentPayloadSize];
_SerialPort.Read( buffer, 0, _CurrentPayloadSize );
RawMessageReceived( this, new RawMessageReceivedEventArgs( _CurrentEndpoint, buffer ) );
// Reset state
_WaitingState = WaitingStates.NewMessage;
_CurrentEndpoint = 0;
_CurrentPayloadSize = 0;
return true;
}
break;
}
// If this hasn't returned yet there wasn't anything interesting to read.
return false;
}
