/// <summary>
/// Reads a 16-bit unsigned integer
/// </summary>
/// <param name="reader"></param>
/// <returns></returns>
private static long readUint16TI(DataReader reader)
{
uint ObjLSB = reader.ReadByte();
var ObjMSB = (int)reader.ReadByte();
var result = (ObjMSB << 8) + ObjLSB;
return result;
}
async Task<bool> onewireReset(string deviceId)
{
try
{
if (serialPort != null)
serialPort.Dispose();
serialPort = await SerialDevice.FromIdAsync(deviceId);
// Configure serial settings
serialPort.WriteTimeout = TimeSpan.FromMilliseconds(1000);
serialPort.ReadTimeout = TimeSpan.FromMilliseconds(1000);
serialPort.BaudRate = 9600;
serialPort.Parity = SerialParity.None;
serialPort.StopBits = SerialStopBitCount.One;
serialPort.DataBits = 8;
serialPort.Handshake = SerialHandshake.None;
dataWriteObject = new DataWriter(serialPort.OutputStream);
dataWriteObject.WriteByte(0xF0);
await dataWriteObject.StoreAsync();
dataReaderObject = new DataReader(serialPort.InputStream);
await dataReaderObject.LoadAsync(1);
byte resp = dataReaderObject.ReadByte();
if (resp == 0xFF)
{
System.Diagnostics.Debug.WriteLine("Nothing connected to UART");
return false;
}
else if (resp == 0xF0)
{
System.Diagnostics.Debug.WriteLine("No 1-wire devices are present");
return false;
}
else
{
System.Diagnostics.Debug.WriteLine("Response: " + resp);
serialPort.Dispose();
serialPort = await SerialDevice.FromIdAsync(deviceId);
// Configure serial settings
serialPort.WriteTimeout = TimeSpan.FromMilliseconds(1000);
serialPort.ReadTimeout = TimeSpan.FromMilliseconds(1000);
serialPort.BaudRate = 115200;
serialPort.Parity = SerialParity.None;
serialPort.StopBits = SerialStopBitCount.One;
serialPort.DataBits = 8;
serialPort.Handshake = SerialHandshake.None;
dataWriteObject = new DataWriter(serialPort.OutputStream);
dataReaderObject = new DataReader(serialPort.InputStream);
return true;
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine("Exception: " + ex.Message);
return false;
}
}
private static async Task<String> StreamReadLine(DataReader reader) {
int next_char;
String data = "";
while (true) {
await reader.LoadAsync(1);
next_char = reader.ReadByte();
if (next_char == '\n') { break; }
if (next_char == '\r') { continue; }
data += Convert.ToChar(next_char);
}
return data;
}
static async void OnConnection(StreamSocketListener sender, StreamSocketListenerConnectionReceivedEventArgs args)
{
try
{
if (IsRobot)
{
DataReader reader = new DataReader(args.Socket.InputStream);
String str = "";
while (true)
{
uint len = await reader.LoadAsync(1);
if (len > 0)
{
byte b = reader.ReadByte();
str += Convert.ToChar(b);
if (b == '.')
{
Debug.WriteLine("Network Received: '{0}'", str);
//Controllers.ParseCtrlMessage(str);
break;
}
}
}
}
else
{
String lastStringSent;
while (true)
{
DataWriter writer = new DataWriter(args.Socket.OutputStream);
lastStringSent = ctrlStringToSend;
writer.WriteString(lastStringSent);
await writer.StoreAsync();
msLastSendTime = Stopwatch.ElapsedMilliseconds;
// re-send periodically
long msStart = Stopwatch.ElapsedMilliseconds;
for (; ;)
{
long msCurrent = Stopwatch.ElapsedMilliseconds;
if ((msCurrent - msStart) > 3000) break;
if (lastStringSent.CompareTo(ctrlStringToSend) != 0) break;
}
}
}
}
catch (Exception e)
{
Debug.WriteLine("OnConnection() - " + e.Message);
}
}
private static byte[] ExtractBytesFromBuffer(Windows.Storage.Streams.IBuffer buffer)
{
List <byte> data = new List <byte>(capacity: (int)buffer.Length);
using (Windows.Storage.Streams.DataReader dr = Windows.Storage.Streams.DataReader.FromBuffer(buffer))
{
while (dr.UnconsumedBufferLength > 0)
{
data.Add(dr.ReadByte());
}
}
return(data.ToArray());
}
private async void OnConnection(StreamSocketListener sender, StreamSocketListenerConnectionReceivedEventArgs args)
{
try
{
DataReader reader = new DataReader(args.Socket.InputStream);
String str = "";
while (true)
{
uint len = await reader.LoadAsync(1);
if (len > 0)
{
byte b = reader.ReadByte();
str += Convert.ToChar(b);
if (b == '.')
{
//Debug.WriteLine("Network Received: '{0}'", str);
//Controllers.ParseCtrlMessage(str);
await Windows.ApplicationModel.Core.CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
txbReceived.Text = str;
});
DataWriter writer = new DataWriter(socket.OutputStream);
writer.WriteString(String.Format("Received the following: {0}", str));
await writer.StoreAsync();
str = string.Empty;
break;
}
}
}
}
catch (Exception e)
{
Debug.WriteLine("OnConnection() - " + e.Message);
}
}
// Read in bytes one at a time until we get a newline, then return the whole line
private async Task<string> readLine(DataReader input)
{
string line = "";
char a = ' ';
// Keep looping as long as we haven't hit a newline OR line is empty
while ((a != '\n' && a != '\r') || line.Length == 0 )
{
// Wait until we have 1 byte available to read
await input.LoadAsync(1);
// Read that one byte, typecasting it as a char
a = (char)input.ReadByte();
// If the char is a newline or a carriage return, then don't add it on to the line and quit out
if( a != '\n' && a != '\r' )
line += a;
}
// Return the string we've built
return line;
}
static async void OnConnection(StreamSocketListener sender, StreamSocketListenerConnectionReceivedEventArgs args)
{
try
{
DataReader reader = new DataReader(args.Socket.InputStream);
while (true)
{
uint len = await reader.LoadAsync(1);
if (len > 0)
{
byte b = reader.ReadByte();
Debug.WriteLine("Network Received: '{0}'", Convert.ToString(b,2));
MainPage.SendCommand(b);
//break;
}
}
}
catch (Exception e)
{
Debug.WriteLine("OnConnection() - " + e.Message);
}
}
private void DoNextRead(byte[] blob)
{
DataReader reader = new DataReader(_socket.InputStream);
reader.InputStreamOptions = InputStreamOptions.Partial;
var task = Task.Run(() =>
{
try
{
reader.LoadAsync((uint)blob.Length).AsTask().Wait();
uint bytesRead = 0;
while(reader.UnconsumedBufferLength > 0)
{
blob[bytesRead++] = reader.ReadByte();
}
if(bytesRead > 0)
{
OnReceive(blob, bytesRead);
}
}
catch(Exception)
{
}
finally
{
reader.DetachStream();
reader.Dispose();
}
});
}
private void _serialDevice_PinChanged(SerialDevice sender, PinChangedEventArgs args)
{
if (args.PinChange != SerialPinChange.RingIndicator) return;
_dataReaderObject = new DataReader(_serialDevice.InputStream)
{
InputStreamOptions = InputStreamOptions.Partial
};
byte response = _dataReaderObject.ReadByte();
_dataReaderObject.DetachStream();
_dataReaderObject = null;
HandleResponse(response);
}
private async void OnPerformAction()
{
var stream = socket.OutputStream;
using (var writer = new DataWriter(stream))
{
writer.ByteOrder = ByteOrder.LittleEndian;
//writer.WriteInt16(6);
//writer.WriteByte(0x00);
//writer.WriteByte(3);
//writer.WriteUInt16(1500);
//writer.WriteUInt16(1000);
//var bytes = new byte[] { 6, 0, 0, 3, 220, 5, 232, 3 };
//writer.WriteBytes(bytes);
writer.WriteInt16(12);
writer.WriteByte(Byte0);
writer.WriteByte(Byte1);
writer.WriteByte(Byte2);
writer.WriteByte(Byte3);
writer.WriteByte(Byte4);
writer.WriteByte(Byte5);
writer.WriteByte(Byte6);
writer.WriteByte(Byte7);
writer.WriteUInt32(FourBytes);
await writer.StoreAsync();
writer.DetachStream();
}
using (var reader = new DataReader(socket.InputStream))
{
reader.ByteOrder = ByteOrder.LittleEndian;
await reader.LoadAsync(5);
var length = reader.ReadUInt16();
var byte1 = reader.ReadByte();
var byte2 = reader.ReadByte();
var status = reader.ReadByte();
reader.DetachStream();
}
}
private ActivityDataDoc LoadData(DataReader reader)
{
//read signature
int signature = reader.ReadInt32();
//read head
ActivityDataDoc ret = new ActivityDataDoc();
ret.version = (int)reader.ReadByte();
ret.year = (int)reader.ReadByte();
ret.month = (int)reader.ReadByte();
ret.day = (int)reader.ReadByte();
//read data
while (reader.UnconsumedBufferLength > 0)
{
var row = new ActivityDataRow();
//row head
row.mode = reader.ReadByte();
row.hour = reader.ReadByte();
row.minute = reader.ReadByte();
//row meta
int size = (int)reader.ReadByte();
byte[] meta = new byte[4];
reader.ReadBytes(meta);
//row data
for (int i = 0, j = 0; meta[i] != 0 && i < 4 && j < size; ++i)
{
int lvalue = meta[i] >> 4;
int rvalue = meta[i] & 0x0f;
if (j < size)
{
int rawValue = reader.ReadInt32();
ActivityDataRow.DataType dtype = dataTypeMap[lvalue];
double value = GetValue(rawValue, dtype);
row.data.Add(dtype, value);
j++;
}
if (j < size)
{
int rawValue = reader.ReadInt32();
ActivityDataRow.DataType dtype = dataTypeMap[rvalue];
double value = GetValue(rawValue, dtype);
row.data.Add(dtype, value);
j++;
}
}
ret.data.Add(row);
}
return ret;
}
// Read in iBuffLength number of samples
private async Task<bool> bReadSource(DataReader input)
{
UInt32 k;
byte byteInput;
uint iErrorCount = 0;
// Read in the data
for (k = 0; k < iStreamBuffLength; k++)
{
// Wait until we have 1 byte available to read
await input.LoadAsync(1);
// Read in the byte
byteInput = input.ReadByte();
// Save to the ring buffer and see if the frame can be parsed
if (++idxCharCount < iFrameSize)
{
mbus.writeRingBuff(byteInput);
}
else
{
iUnsignedShortArray = mbus.writeRingBuff(byteInput, iShortCount);
iErrorCount = mbus.iGetErrorCount();
}
if (iErrorCount == 0 && idxCharCount >= iFrameSize)
{
// The frame was valid
rectFrameOK.Fill = new SolidColorBrush(Colors.Green);
// Was it the next one in the sequence?
if( ++byteAddress == Convert.ToByte(mbus.iGetAddress()))
{
rectFrameSequence.Fill = new SolidColorBrush(Colors.Green);
}
else
{
rectFrameSequence.Fill = new SolidColorBrush(Colors.Red);
byteAddress = Convert.ToByte(mbus.iGetAddress());
}
AddScopeData( Convert.ToSingle(iUnsignedShortArray[0]) * fScope1ScaleADC, Convert.ToSingle(iUnsignedShortArray[1]) * fScope2ScaleADC);
AddScopeData(Convert.ToSingle(iUnsignedShortArray[2]) * fScope1ScaleADC, Convert.ToSingle(iUnsignedShortArray[3]) * fScope2ScaleADC);
// Reset the character counter
idxCharCount = 0;
}
if(idxCharCount>(iFrameSize>>1))
{
rectFrameOK.Fill = new SolidColorBrush(Colors.Black);
}
}
// Success, return a true
return true;
}
/// <summary>
/// Perform image capture from mediaCapture object
/// </summary>
/// <param name="cancelToken">
/// The cancel Token.
/// </param>
/// <returns>
/// Decoded barcode string.
/// </returns>
private async Task<Result> GetCameraImage(CancellationToken cancelToken)
{
Result result = null;
await Task.Run(
async () =>
{
this.imageStream = new InMemoryRandomAccessStream();
await this.capture.CapturePhotoToStreamAsync(this.encodingProps, this.imageStream);
await this.imageStream.FlushAsync();
this.datareader = new DataReader(this.imageStream);
await this.datareader.LoadAsync((uint)this.imageStream.Size);
var bitmap = new byte[this.encodingProps.Width * this.encodingProps.Height * 4];
uint index = 0;
while (this.datareader.UnconsumedBufferLength > 0)
{
bitmap[index] = datareader.ReadByte();
index++;
}
result = await this.DecodeBitmap(bitmap);
if (result != null)
{
this.barcodeFound = true;
}
},
cancelToken).ConfigureAwait(false);
return result;
}
/// <summary>
/// Creates NDEF records based on the data in the given buffer.
/// </summary>
/// <param name="buf">The data buffer as input.</param>
/// <param name="list">The list of new NDEF records as output.</param>
/// <param name="isFirstRecordSp">Defines whether the first record is smart poster or not.</param>
private static void ReadNdefRecord(DataReader buf, List<NdefRecord> list, bool isFirstRecordSp)
{
var record = new NdefRecord();
byte header = buf.ReadByte();
record.Mb = IsBitSet(header, 7);
record.Me = IsBitSet(header, 6);
record.Cf = IsBitSet(header, 5);
record.Sr = IsBitSet(header, 4);
record.Il = IsBitSet(header, 3);
record.Tnf = (byte)(header & 0x07);
record.TypeLength = buf.ReadByte();
record.IsSpRecord = isFirstRecordSp;
if (record.Il)
{
record.IdLength = buf.ReadByte();
}
else
{
record.IdLength = 0;
}
if (record.Sr)
{
record.PayloadLength = buf.ReadByte();
}
else
{
var lengthBuf = new byte[4];
buf.ReadBytes(lengthBuf);
record.PayloadLength = BitConverter.ToUInt32(lengthBuf, 0);
}
if (record.TypeLength > 0)
{
record.Type = new byte[record.TypeLength];
buf.ReadBytes(record.Type);
}
if ((record.Il) && (record.IdLength > 0))
{
record.Id = new byte[record.IdLength];
buf.ReadBytes(record.Id);
}
if (record.PayloadLength > 0)
{
if ((record.Tnf == 0x01)
&& (System.Text.Encoding.UTF8.GetString(record.Type, 0, record.TypeLength) == "Sp"))
{
ReadNdefRecord(buf, list, true);
record.Payload = null;
}
else
{
record.Payload = new byte[record.PayloadLength];
buf.ReadBytes(record.Payload);
}
}
list.Add(record);
if (!record.Me)
{
ReadNdefRecord(buf, list, isFirstRecordSp);
}
}
/// <summary>
/// Method used for the "Collection Thread"
/// </summary>
/// <param name="operation"></param>
private async void CollectTelemetryData(IAsyncAction operation)
{
DataReader reader;
uint unconsumedBufferLength = 0;
lock (m_pConnectedSocket)
{
reader = new DataReader(m_pConnectedSocket.InputStream);
}
while (IsClientConnected | (unconsumedBufferLength > 0))
{
await m_pTelemetryReaderSemaphoreSlim.WaitAsync();
try
{
await reader.LoadAsync(sizeof (byte));
unconsumedBufferLength = reader.UnconsumedBufferLength;
}
finally
{
m_pTelemetryReaderSemaphoreSlim.Release();
}
if (reader.UnconsumedBufferLength <= 0) continue;
await m_pTelemetryReaderSemaphoreSlim.WaitAsync();
try
{
byte b;
var e = new OnTelemetryDataReceivedEventArgs();
b = reader.ReadByte();
var commandInformation = (CommandInformation) b;
switch (commandInformation)
{
case CommandInformation.Information:
await reader.LoadAsync(sizeof (uint));
var n = reader.ReadUInt32();
await reader.LoadAsync(n*sizeof (char));
e.CommandData = reader.ReadString(n);
e.CommandType = CommandInformation.Information;
break;
case CommandInformation.Gyroscope:
float angleX, angleY, angleZ;
long gyroTime;
await reader.LoadAsync(3*sizeof (double));
await reader.LoadAsync(sizeof (long));
angleX = Convert.ToSingle(reader.ReadDouble());
angleY = Convert.ToSingle(reader.ReadDouble());
angleZ = Convert.ToSingle(reader.ReadDouble());
gyroTime = reader.ReadInt64();
e.CommandData = new GyroscopeData()
{
Angle = new Vector3(angleX, angleY, angleZ),
TimeStamp = new DateTime(gyroTime)
};
e.CommandType = CommandInformation.Gyroscope;
break;
case CommandInformation.Accelerometer:
float accX, accY, accZ;
long accTime;
await reader.LoadAsync(3*sizeof (double));
await reader.LoadAsync(sizeof (long));
accX = Convert.ToSingle(reader.ReadDouble());
accY = Convert.ToSingle(reader.ReadDouble());
accZ = Convert.ToSingle(reader.ReadDouble());
accTime = reader.ReadInt64();
e.CommandData = new AccelerometerData()
{
Acceleration = new Vector3(accX, accY, accZ),
TimeStamp = new DateTime(accTime)
};
e.CommandType = CommandInformation.Accelerometer;
break;
case CommandInformation.Servo:
byte id, velocity;
long servoTime;
await reader.LoadAsync(2*sizeof (byte));
await reader.LoadAsync(sizeof (long));
id = reader.ReadByte();
velocity = reader.ReadByte();
servoTime = reader.ReadInt64();
e.CommandData = new ServoControllerData() {ServoId = id, VelocityValue = velocity, TimeStamp = new DateTime(servoTime)};
e.CommandType = CommandInformation.Servo;
break;
}
var handler = OnTelemetryDataReceived;
handler?.Invoke(this, e);
}
finally
{
m_pTelemetryReaderSemaphoreSlim.Release();
}
}
}
public override void Run()
{
#if WINRT
StorageFile file = Package.Current.InstalledLocation.GetFileAsync(_path).AsTask().Result;
using(var raStream = file.OpenReadAsync().AsTask().Result)
{
byte[] blob = new byte[CHUNK_SIZE];
while (IsRunning && raStream.CanRead)
{
DataReader reader = new DataReader(raStream.GetInputStreamAt(0));
reader.InputStreamOptions = InputStreamOptions.Partial;
try
{
reader.LoadAsync((uint)blob.Length).AsTask().Wait();
int bytesRead = 0;
while (reader.UnconsumedBufferLength > 0)
{
blob[bytesRead++] = reader.ReadByte();
}
if (bytesRead > 0)
{
HandleData(blob, bytesRead);
}
}
catch (Exception)
{
}
finally
{
reader.DetachStream();
reader.Dispose();
}
if (raStream.Position >= raStream.Size)
{
Terminate();
break;
}
Task.Delay(INTERVAL).Wait();
}
}
#else
byte [] blob = new byte[CHUNK_SIZE];
while(IsRunning && _fileStream.CanRead)
{
int read = _fileStream.Read(blob, 0, CHUNK_SIZE);
if( read > 0 )
{
HandleData(blob, read);
}
if(_fileStream.CanSeek && _fileStream.Position >= _fileStream.Length)
{
Terminate();
break;
}
Thread.Sleep(INTERVAL);
}
#endif
}
private byte GetLengthHeader(DataReader reader)
{
var length = reader.ReadByte();
var delimiter = reader.ReadByte();
if (delimiter != 0)
{
throw new Exception("Unexpected input " + delimiter);
}
return length;
}
private void ReadResponseHeader(DataReader reader)
{
reader.ReadByte();
/*var appName = */GetString(reader);
}
/**
* Read and parse frame
*/
public async static Task<Frame> ReadFrame(DataReader dataReader)
{
Frame frame = new Frame();
// read the first byte (op code)
//var dataReader = new DataReader(stream);
var DataReaderLoadOperation = await dataReader.LoadAsync(sizeof(byte));
//if (DataReaderLoadOperation != sizeof(byte))
//{
// throw new Exception("DataReaderLoadOperation is zero");//抛出异常
//}
int data = dataReader.ReadByte();
frame.isFinal = (data & FIN) != 0;
bool isReserved = (data & RSV) != 0;
if (isReserved)
{
throw new Exception("RSV not zero");
}
frame.opCode = (data & OPCODE);
if (Array.BinarySearch<int>(OPCODES, frame.opCode) < 0)
{
throw new Exception("Bad opcode");
}
if (Array.BinarySearch<int>(CTRL_OPCODES, frame.opCode) >= 0 && !frame.isFinal)
{
throw new Exception("In control opcode, must set FIN");
}
// read the second byte (mask and payload length)
await dataReader.LoadAsync(sizeof(byte));
data = dataReader.ReadByte();
frame.isMasked = (data & MASK) != 0;
int length = (data & LENGTH);
// read extended length if need
if (length < 126)
{
// short length is already read.
}
else if (length == 126)
{
await dataReader.LoadAsync(sizeof(UInt16));
var b1 = dataReader.ReadByte();
var b2 = dataReader.ReadByte();
//length = b1 * 256 + b2;
length = (((b1 & 0xff) << 8) | (b2 & 0xff));
// length = dataReader.ReadUInt16(); // read 2 bytes length
}
else if (length == 127)
{
await dataReader.LoadAsync(sizeof(Int64));
byte[] longByte = new byte[8];
// long length8 = dataReader.ReadInt64(); // read 8 bytes length
dataReader.ReadBytes(longByte);
long length8 = byte2Long(longByte);
if (length8 > int.MaxValue)
{
throw new IOException("too big frame length");
}
length = (int)length8;
}
byte[] mask = null;
if (frame.isMasked)
{
mask = new byte[4];
await dataReader.LoadAsync(4);
dataReader.ReadBytes(mask);
//stream.readFully(mask);
}
frame.payload = new byte[length]; // can be optimized.
//stream.readFully(frame.payload);
if (length > 0)
{
await dataReader.LoadAsync((uint)length);
dataReader.ReadBytes(frame.payload);
}
if (frame.isMasked)
{
UseMask(frame.payload, mask, 0);
}
return frame;
}
protected short ReadBigEndian16bit(DataReader reader)
{
byte lo = reader.ReadByte();
byte hi = reader.ReadByte();
return (short)(((short)hi << 8) + (short)lo);
}
private async void OnConnection(StreamSocketListener sender, StreamSocketListenerConnectionReceivedEventArgs args)
{
try
{
DataReader reader = new DataReader(args.Socket.InputStream);
String str = "";
while (true)
{
uint len = await reader.LoadAsync(1);
if (len > 0)
{
byte b = reader.ReadByte();
if (b == '.')
{
//Debug.WriteLine(string.Format("Network Received: '{0}'", str));
//ParseCtrlMessage(str);
_CommandReceived(this, str);
str = "";
break;
}
else
{
str += Convert.ToChar(b);
}
}
}
}
catch (Exception e)
{
Debug.WriteLine("OnConnection() - " + e.Message);
}
}
private async Task<string> ReadResponse(StreamSocket socket)
{
//txtSerialNo.Text = "Reading response ...";
using (DataReader reader = new DataReader(socket.InputStream))
{
reader.InputStreamOptions = InputStreamOptions.Partial;
reader.UnicodeEncoding = Windows.Storage.Streams.UnicodeEncoding.Utf8;
reader.ByteOrder = ByteOrder.LittleEndian;
StringBuilder command = new StringBuilder();
string commandString = string.Empty;
bool commandRetrieved = false;
await reader.LoadAsync(1);
while (reader.UnconsumedBufferLength > 0)
{
byte b = reader.ReadByte();
switch (b)
{
case 0x02:
command.Clear();
break;
case 0x03:
try
{
// Case the boolean values correctly
commandString = command.Replace("False", "false").Replace("True", "true").ToString();
commandRetrieved = true;
}
catch (Exception ex)
{
//txtResult.Text = command.ToString();
}
command.Clear();
break;
default:
command.Append(Convert.ToChar(b));
break;
}
if (commandRetrieved)
{
break;
}
await reader.LoadAsync(1);
}
reader.DetachStream();
return commandString;
}
}
private async Task<string> ReadLine(DataReader reader)
{
StringBuilder stringBuilder = new StringBuilder();
await reader.LoadAsync(sizeof(byte));
int readChar = reader.ReadByte();
if (readChar == -1)
{
return null;
}
while (readChar != '\n')
{
if (readChar != '\r')
{
stringBuilder.Append((char)readChar);
}
await reader.LoadAsync(sizeof(byte));
readChar = reader.ReadByte();
if (readChar == -1)
{
return null;
}
}
return stringBuilder.ToString();
}
private async Task<string> ReadData(DataReader reader)
{
string length = string.Empty;
bool lengthFound = false;
while (!lengthFound)
{
await reader.LoadAsync(1);
byte character = reader.ReadByte();
if (character == ':')
{
lengthFound = true;
}
else
{
length += Convert.ToChar(character);
}
}
if (string.IsNullOrEmpty(length))
{
return string.Empty;
}
int dataLength = int.Parse(length);
byte[] dataBuffer = new byte[dataLength];
await reader.LoadAsync(Convert.ToUInt32(dataLength));
reader.ReadBytes(dataBuffer);
return System.Text.Encoding.UTF8.GetString(dataBuffer, 0, dataLength);
}
private async Task<UInt32> serialReadAsync(uint read_size)
{
try
{
if (serialPort == null)
{
printLog("No port selected");
return 0;
}
//TODO handle cancelationTokens
using (DataReader dataReaderObject = new DataReader(serialPort.InputStream))
{
// Launch the task and wait
UInt32 bytesRead = await dataReaderObject.LoadAsync(read_size);
for (int i = 0; i < bytesRead; i++)
{
serialReceive[i] = dataReaderObject.ReadByte();
}
dataReaderObject.DetachStream();
return bytesRead;
}
}
catch (Exception ex)
{
printLog(ex.Message);
return 0;
}
}
private async Task deviceReaderAsync()
{
Packet currentPacket = new Packet();
using (DataReader dataReader = new DataReader(serialDevice.InputStream))
{
dataReader.InputStreamOptions = InputStreamOptions.Partial;
try
{
while (true)
{
await dataReader.LoadAsync(kReadBufferSize).AsTask(readCancellation.Token);
while (dataReader.UnconsumedBufferLength > 0)
{
if (currentPacket.ByteCount == 0)
{
currentPacket.receivedFromPortStart = DateTime.Now;
}
if (processByte(currentPacket, dataReader.ReadByte()))
{
currentPacket.receivedFromPortEnd = DateTime.Now;
//if it's an empty receive, drop it.
if(currentPacket.ByteCount == 2)
{
if (currentPacket.GetData()[0] == kCodeReceive)
{
currentPacket = new Packet();
continue;
}
}
incomingPacketQueue.Post(currentPacket);
currentPacket = new Packet();
}
}
}
}
catch (TaskCanceledException tce)
{
System.Diagnostics.Debug.WriteLine("Read cancelled " + tce.ToString());
}
finally
{
dataReader.DetachStream();
}
}
}
public async void LoadRomFromFile(StorageFile file)
{
IRandomAccessStream readStream = await file.OpenAsync(FileAccessMode.Read);
IInputStream inputStream = readStream.GetInputStreamAt(0);
DataReader dataReader = new DataReader(inputStream);
uint nbBytesLoaded = await dataReader.LoadAsync((uint)readStream.Size);
int length = (int)nbBytesLoaded;
ushort position = 0;
byte[] romBin = new byte[length];
while (position < length)
{
romBin[position] = dataReader.ReadByte();
position += sizeof(byte);
}
LoadRomInMemory(romBin);
}
public async void SendToAgent(Slide slide, StreamSocket TCPClient)
{
var content = slide.Content as ScreenCapture;
var writer = new DataWriter(TCPClient.OutputStream);
var reader = new DataReader(TCPClient.InputStream);
Timer timer = new Timer(async (client) =>
{
try
{
var tcpClient = client as StreamSocket;
var writerCB = new DataWriter(tcpClient.OutputStream);
writerCB.WriteString("::STOP::");
await writerCB.StoreAsync();
await writerCB.FlushAsync();
tcpClient.Dispose();
}
catch(Exception ex)
{
Debug.WriteLine(ex.Message);
}
}, TCPClient, slide.AppearanceDuration, Timeout.Infinite);
try
{
var length = writer.WriteString(content.ProcessName);
await writer.StoreAsync();
await writer.FlushAsync();
var byteList = new List<byte>();
try
{
while (true)
{
reader.InputStreamOptions = InputStreamOptions.Partial;
uint sizeFieldCount = await reader.LoadAsync(1);
if (sizeFieldCount != 1)
{
// The underlying socket was closed before we were able to read the whole data.
throw new Exception("Connection was closed from Agent with IP: " + content.IPTargetAgent);
}
// Read the message.
uint messageLength = reader.ReadByte();
uint actualMessageLength = await reader.LoadAsync(4);
var buffer = new byte[actualMessageLength];
reader.ReadBytes(buffer);
var msgLength = System.BitConverter.ToUInt32(buffer, 0);
byteList.Clear();
byteList.Capacity = (int)msgLength;
uint remainingLength = msgLength;
while (remainingLength > 0)
{
if (actualMessageLength == 0)
{
throw new Exception("Connection was closed from Agent with IP: " + content.IPTargetAgent);
}
actualMessageLength = await reader.LoadAsync(remainingLength);
remainingLength -= actualMessageLength;
buffer = new byte[actualMessageLength];
reader.ReadBytes(buffer);
byteList.AddRange(buffer);
}
this.FireOnDataReceived(byteList.ToArray());
}
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
}
}
catch(Exception ex)
{
Debug.WriteLine(ex.Message);
this.FireOnConnectionFailed();
}
}