/// <summary>
/// The callback of the read async method.
/// </summary>
/// <param name="result">The result.</param>
private void EndRead(IAsyncResult result)
{
int length = _stream.EndRead(result);
// asyncState is the buffer used in the ctor call which does the first read.
byte[] asyncState = (byte[])result.AsyncState;
if (length > 0)
{
byte[] destinationArray = new byte[length];
Array.Copy(asyncState, 0, destinationArray, 0, length);
OnMessageReceived(new ContainerEventArgs <byte[]>(destinationArray));
}
lock (_instanceLock)
{
if (_stream.IsConnected)
{
_stream.BeginRead(asyncState, 0, ConstantsEnums.BufferLength, new AsyncCallback(EndRead), asyncState);
}
else
{
this.Disconnected.RaiseEvent(this);
}
}
}
public void ReadAsync(PipeStream stream, int timeout, Action <byte[]> onComplete)
{
var memoryStream = new MemoryStream();
var buffer = new byte[8 * 1024];
var read = 0;
if (stream.CanTimeout)
{
stream.ReadTimeout = timeout;
}
Future.Of(
x => stream.BeginRead(buffer, 0, buffer.Length, x, null),
x =>
{
read = stream.EndRead(x);
if (read > 0)
{
memoryStream.Write(buffer, 0, read);
}
if (stream.IsMessageComplete && memoryStream.Length > 0)
{
onComplete(memoryStream.ToArray());
memoryStream.Close();
memoryStream.Dispose();
memoryStream = new MemoryStream();
}
return(read);
})
.LoopWhile(() => Running)
.Start();
}
private void OnRead(IAsyncResult ar)
{
int n = stream.EndRead(ar);
if (n > 0)
{
Console.WriteLine("Client.Read({0}): {1}", id, Encoding.ASCII.GetString(header, 0, n));
stream.BeginRead(header, 0, header.Length, OnRead, this);
}
}
public static Task <int> ReadPipeAsync(this PipeStream pipe, byte[] buffer, int offset, int count, CancellationToken cancellationToken)
{
if (cancellationToken.IsCancellationRequested)
{
return(Task.FromCanceled <int>(cancellationToken));
}
var registration = cancellationToken.Register(() => CancelPipeIo(pipe));
var async = pipe.BeginRead(buffer, offset, count, null, null);
return(new Task <int>(() => {
try { return pipe.EndRead(async); }
finally { registration.Dispose(); }
}, cancellationToken));
}
private void EndRead(IAsyncResult result)
{
int length = _Stream.EndRead(result);
var asyncState = (byte[])result.AsyncState;
if (length > 0)
{
var destinationArray = new byte[length];
Array.Copy(asyncState, 0, destinationArray, 0, length);
OnMessageReceived(new MessageEventArgs(destinationArray));
}
lock (_InstanceLock)
{
_Stream.BeginRead(asyncState, 0, BUFFER_LENGTH, EndRead, asyncState);
}
}
private void EndRead(IAsyncResult result)
{
int length = mStream.EndRead(result);
byte[] asyncState = (byte[])result.AsyncState;
if (length > 0)
{
byte[] destinationArray = new byte[length];
Array.Copy(asyncState, 0, destinationArray, 0, length);
OnMessageReceived(new MessageEventArgs(destinationArray));
}
lock (mNamedPipeLock)
{
mStream.BeginRead(asyncState, 0, kMaxBufferSize, new AsyncCallback(EndRead), asyncState);
}
}
private void BeginRead(ManualResetEventSlim manualEvent, Action <byte[]> callback)
{
var buffer = new byte[PackageSize];
PipeStream.BeginRead(buffer, 0, buffer.Length, (result) =>
{
var bytesRead = PipeStream.EndRead(result);
if (bytesRead > 0)
{
callback(buffer.Take(bytesRead).ToArray());
}
else
{
Close();
}
manualEvent.Set();
}, null);
}
protected override int Read(byte[] buffer, int offset, int count)
{
pipe = (PipeStream)Stream;
AsyncCallback cb = delegate(IAsyncResult ar)
{
//wHandle = ar.AsyncWaitHandle;
pipe.EndRead(ar);
((ManualResetEvent)wHandle).Set();
};
//((AutoResetEvent)wHandle).
IAsyncResult iar = pipe.BeginRead(buffer, offset, count, cb, wHandle);
Thread.Sleep(100);
wHandle.WaitOne();
((ManualResetEvent)wHandle).Reset();
return(count);
}
private void EndReading(IAsyncResult ar)
{
try
{
if (State == ResonanceComponentState.Connected)
{
_pipeStream.EndRead(ar);
int expectedSize = BitConverter.ToInt32(_size_buffer, 0);
if (expectedSize > 0)
{
byte[] data = new byte[expectedSize];
int read = 0;
while (read < expectedSize)
{
read += _pipeStream.Read(data, read, expectedSize - read);
if (State != ResonanceComponentState.Connected)
{
break;
}
}
OnDataAvailable(data);
}
else
{
Thread.Sleep(2000);
}
WaitForData();
}
}
catch (Exception ex)
{
OnFailed(ex, "Error occurred while trying to read from the pipe stream.");
}
}
private void EndRead(IAsyncResult result)
{
// this can throw an exception when it first starts up, so...
try
{
int length = _Stream.EndRead(result);
var asyncState = (byte[])result.AsyncState;
if (length > 0)
{
var destinationArray = new byte[length];
Array.Copy(asyncState, 0, destinationArray, 0, length);
OnMessageReceived(new MessageEventArgs(destinationArray));
}
lock (_InstanceLock)
{
_Stream.BeginRead(asyncState, 0, BUFFER_LENGTH,
EndRead, asyncState);
}
}
catch
{
}
}
public int Read(byte[] buffer, int offset, int length, int timeoutMs)
{
if (!WaitForConnection(timeoutMs))
{
return(-BacnetMstpProtocolTransport.ETIMEDOUT);
}
if (_currentRead == null)
{
try
{
_currentRead = _conn.BeginRead(buffer, offset, length, null, null);
}
catch (Exception)
{
Disconnect();
return(-1);
}
}
if (!_currentRead.IsCompleted && !_currentRead.AsyncWaitHandle.WaitOne(timeoutMs))
{
return(-BacnetMstpProtocolTransport.ETIMEDOUT);
}
try
{
var rx = _conn.EndRead(_currentRead);
_currentRead = null;
return(rx);
}
catch (Exception)
{
Disconnect();
return(-1);
}
}
private void WhenReceived(IAsyncResult ar)
{
try
{
var read = _pipeStream.EndRead(ar);
if (read == 0)
{
Log($"Nothing to read, connection closed.");
return;
}
_cursor += read;
Log($"Received {read} bytes.");
Begin(_cursor == _buffer.Length);
}
catch (NullReferenceException)
{
Log($"Nothing to read, connection closed.");
}
catch (IOException e)
{
Log($"End Read error: {e}.");
}
}
public virtual void ReadCallback(IAsyncResult result)
{
WeGameHelper.WriteDebugString("ReadCallback: " + Thread.CurrentThread.ManagedThreadId.ToString());
IPCContent iPCContent = (IPCContent)result.AsyncState;
try
{
int num = _pipeStream.EndRead(result);
if (!iPCContent.CancelToken.IsCancellationRequested)
{
if (num > 0)
{
_totalData.AddRange(iPCContent.data.Take(num));
if (_pipeStream.IsMessageComplete)
{
AddPackToList(_totalData);
_totalData = new List <byte>();
}
}
}
else
{
WeGameHelper.WriteDebugString("IPCBase.ReadCallback.cancel");
}
}
catch (IOException ex)
{
_pipeBrokenFlag = true;
WeGameHelper.WriteDebugString("ReadCallback Exception, {0}", ex.Message);
}
catch (InvalidOperationException ex2)
{
_pipeBrokenFlag = true;
WeGameHelper.WriteDebugString("ReadCallback Exception, {0}", ex2.Message);
}
}
public override int EndRead(IAsyncResult asyncResult) => _underlying.EndRead(asyncResult);
void HandleRead(IAsyncResult ar)
{
lock (comlock)
{
int bytes;
try
{
bytes = Pipe.EndRead(ar);
if (bytes == 0)
{
Debug.Print(ar.ToString());
Debug.Print(ar.CompletedSynchronously.ToString());
Debug.Print(ar.IsCompleted.ToString());
onFailure("No bytes to read, pipe closed");
return;
}
}
catch (Exception e)
{
Debug.Print(string.Format("End Read Failed {0}", e.ToString()));
onFailure("End read threw exception " + e.ToString());
return;
}
try
{
processData(bytes);
try {
Pipe.BeginRead(buffer, bufferreadpos, buffersize - bufferreadpos, HandleRead, this);
}
catch {
onFailure("Pipe broken");
return;
}
}
catch (EndOfStreamException)
{
if (bufferreadpos == buffersize)
{
buffersize = buffersize * 2;
byte[] newbuffer = new byte[buffersize];
buffer.CopyTo(newbuffer, 0);
buffer = newbuffer;
}
try
{
Debug.Print("new read " + bufferreadpos.ToString() + " " + (buffersize - bufferreadpos).ToString());
if (!Pipe.CanRead)
{
Debug.Print("For some reason I can't read from this pipe. Ideas?");
}
if (!Pipe.IsConnected)
{
onFailure("Pipe has gone away");
return;
}
try {
Pipe.BeginRead(buffer, bufferreadpos, buffersize - bufferreadpos, HandleRead, this);
}
catch {
onFailure("Pipe broken");
return;
}
}
catch (Exception e)
{
Debug.Print("Communicator found too little to read : " + buffersize.ToString() + " " + bufferreadpos.ToString() + " " + e.ToString());
onFailure("Insufficient data to read");
return;
}
}
catch (Exception e)
{
Debug.Print("Communicator failure :" + e.ToString());
onFailure("Handle read comms failure : " + e.ToString());
return;
}
}
}
