protected virtual void ProcessReceive(SocketAsyncEventArgs e)
{
// check if the remote host closed the connection
if (e.BytesTransferred > 0 && e.SocketError == SocketError.Success)
{
_socketMessageHandler.Write(e.Buffer, e.Offset, e.BytesTransferred);
var count = _socketMessageHandler.TryRead(out var readBytes);
if (count > 0)
{
_socketMessageEventArgs.Message = readBytes;
_socketMessageEventArgs.Count = count;
// inform that the socket just received complete message
MessageReceived.RaiseEvent(this, _socketMessageEventArgs);
}
// don't attempt another receive if socket is already disposed
if (_disposed)
{
return;
}
var willRaiseEvent = _clientSocket.ReceiveAsync(e);
if (!willRaiseEvent)
{
ProcessReceive(e);
}
}
}
private void HttpPostServer_MessageReceived(object sender, RestResponse e)
{
try
{
if (e == null)
{
return;
}
var tetraControlResponse = JsonConvert.DeserializeObject <TetraControlResponse>(e.Content);
if (tetraControlResponse == null || tetraControlResponse.data == null)
{
return;
}
Logger.WriteDebug(
$"{_decoderName}: {tetraControlResponse.data.srcSSI} -> {tetraControlResponse.message}");
switch (tetraControlResponse.data.type)
{
case "status":
//Raise event
MessageReceived.RaiseEvent(this, new MessageEventArgs(tetraControlResponse.ToStatusString()));
break;
case "pos":
MessageReceived.RaiseEvent(this, new MessageEventArgs(tetraControlResponse.ToPositionString()));
break;
}
}
catch (Exception ex)
{
Logger.WriteDebug($"{_decoderName}: {ex} -> {ex.Message}");
}
}
public CommunicatingApplicationHook(System.Diagnostics.Process targetProcess)
: base(targetProcess)
{
remoteProcess = new Native.Process.RemoteProcess(targetProcess);
IPC.NamedPipes.NamedPipeServer server = new IPC.NamedPipes.NamedPipeServer();
PipeId = Guid.NewGuid().ToString();
Thread t = new Thread(() =>
{
server.ConnectionRecieved += (s, e) =>
{
connection = e.Value;
while (e.Value.IsConnected)
{
var msg = e.Value.Receive();
if (e.Value.IsConnected && msg != null)
{
MessageReceived.RaiseEvent(this, msg);
}
}
ConnectionClosed.RaiseEvent(this);
};
server.Start(new IPC.NamedPipes.NamedPipeInitialisation(PipeId));
});
t.Start();
}
private async Task <bool> RaiseMessageReceivedAsync(Message envelope)
{
var eventArgs = new EnvelopeEventArgs <Message>(envelope);
MessageReceived?.RaiseEvent(this, eventArgs);
await eventArgs.WaitForDeferralsAsync().ConfigureAwait(false);
return(true);
}
protected override bool ProcessEvent(IntPtr wParam, IntPtr lParam)
{
NativeStructs.CWPSTRUCT msg = (NativeStructs.CWPSTRUCT)Marshal.PtrToStructure(lParam, typeof(NativeStructs.CWPSTRUCT));
MessageReceived.RaiseEvent(this, new Message
{
HWnd = msg.hwnd,
LParam = msg.lParam,
Msg = msg.message,
WParam = msg.wParam
});
return(false);
}
public void Start()
{
if (IsServer)
{
server.ConnectionRecieved += server_ConnectionRecieved;
server.Start(initArgs);
}
else
{
conn = client.Connect(initArgs);
while (conn.IsConnected)
{
MessageReceived.RaiseEvent(this, conn.Receive());
}
Environment.Exit(1);
}
}
private void ReceiveCallback(IAsyncResult _asyncResult)
{
try
{
//Stop receive timeout
receiveTimeout.Stop();
// Retrieve the state object and the client socket from the asynchronous state object.
var _state = (StateObject)_asyncResult.AsyncState;
if (_state == null || _state.Socket == null || decoderStatus == ConnectionStatus.Disconnected)
{
return;
}
var _socketError = new SocketError();
//Complete recive
var _bytesRead = _state.Socket.EndReceive(_asyncResult, out _socketError);
if (_bytesRead > 0)
{
//Store the data received so far
_state.Data += decoderEncoding.GetString(_state.Buffer, 0, _bytesRead);
//Logger.WriteDebug($"{decoderName}: receive -> {_state.Data}");
//Split each frame
var _dataArray =
_state.Data.Split(new[] { decoderEtxString }, StringSplitOptions.RemoveEmptyEntries);
if (_dataArray != null && _dataArray.Count() > 0)
{
//Loop through all frames
foreach (var _data in _dataArray)
{
//Raise event
MessageReceived.RaiseEvent(this, new MessageEventArgs(_data));
//Clear buffer
_state.Data = _state.Data.Replace(_data + decoderEtxString, string.Empty);
}
}
if (_state.Socket != null && _state.Socket.Connected)
{
//Start receive timeout again
receiveTimeout.Start();
//Start receive again
_state.Socket.BeginReceive(_state.Buffer, 0, StateObject.BufferSize, 0, ReceiveCallback,
_state);
}
else
{
//Raise event
Disconnected.RaiseEvent(this, null);
//Try to reconnect again;
Reconnect();
}
}
//EndRecieve returns 0 bytes -> connection have been closed by the remote endpoint.
else if (_bytesRead == 0 && decoderStatus == ConnectionStatus.Connected)
{
Logger.WriteDebug($"{decoderName}: receive -> connection closed from server");
//Raise event
Disconnected.RaiseEvent(this, null);
//Try to reconnect again;
Reconnect();
}
else if (_socketError != SocketError.Success)
{
Logger.WriteDebug($"{decoderName}: receive -> SocketError({_socketError})");
//Raise event
Disconnected.RaiseEvent(this, null);
//Try to reconnect again;
Reconnect();
}
}
catch (ObjectDisposedException)
{
}
catch (Exception ex)
{
Logger.WriteDebug($"{decoderName}: {ex} -> {ex.Message}");
}
}
public void ReceiveCallback(IAsyncResult _asyncResult)
{
// Retrieve the state object and the handler socket from the asynchronous state object.
var _state = (StateObject)_asyncResult.AsyncState;
if (_state == null || decoderSocket == null)
{
return;
}
var _socketError = new SocketError();
var _bytesRead = 0;
try
{
// Read data from the remote device.
_bytesRead = decoderSocket.EndReceive(_asyncResult, out _socketError);
//EndRecieve returns x bytes -> connection ok
if (_bytesRead > 0)
{
//Store the data received so far
_state.Data += Encoding.ASCII.GetString(_state.Buffer, 0, _bytesRead);
//Split each frame
var _dataArray = _state.Data.Split(new[]
{
decoderEtxString
}, StringSplitOptions.RemoveEmptyEntries);
if (_dataArray != null && _dataArray.Count() > 0)
{
//Loop through all frames
foreach (var _data in _dataArray)
{
Logger.WriteDebug($"{decoderName}: Message -> {_data}");
//Remove frame + etx from buffer
_state.Data = _state.Data.Replace(_data + decoderEtxString, "");
//Raise event
MessageReceived.RaiseEvent(this, new MessageEventArgs(_data));
}
}
if (decoderSocket != null && decoderSocket.Connected)
{
//Start receive again
decoderSocket.BeginReceive(_state.Buffer, 0, StateObject.BufferSize, 0, ReceiveCallback,
_state);
}
}
//EndRecieve returns 0 bytes -> connection have been closed by the remote endpoint.
else if (_bytesRead == 0 && decoderStatus == ConnectionStatus.ClientConnected)
{
Logger.WriteDebug($"{decoderName}: Connection closed from client");
//Raise event
Disconnected.RaiseEvent(this, null);
//Try to reconnect again;
Restart();
}
else if (_socketError != SocketError.Success)
{
Logger.WriteDebug($"{decoderName}: SocketError -> {_socketError}");
}
}
catch (Exception ex)
{
Logger.WriteDebug($"{decoderName}: Error on receive -> {ex.Message}");
//Raise event
Disconnected.RaiseEvent(this, null);
//Try to reconnect again;
Restart();
}
}
