private void EndReceiveInput(IAsyncResult ar)
{
ReceiveInputState state = (ReceiveInputState)ar.AsyncState;
try
{
int bytesRead = state.Stream.EndRead(ar);
if (bytesRead > 0)
{
m_lastActivity = DateTime.UtcNow;
m_inboundData.Write(state.Buffer, 0, bytesRead);
}
BeginReceiveInput(state);
}
catch (ProcessExitException)
{
ProcessExit();
((IController)this).ClosePort();
return;
}
catch (InvalidOperationException)
{
if (state.InvalidOperationRetry <= 0)
{
ProcessExit();
((IController)this).ClosePort();
}
else
{
state.InvalidOperationRetry--;
((IController)this).ClosePort();
Thread.Sleep(200);
}
}
catch (IOException)
{
((IController)this).ClosePort();
Thread.Sleep(200);
}
catch
{
((IController)this).ClosePort();
Thread.Sleep(200);
}
}
private void BeginReceiveInput(ReceiveInputState state)
{
try
{
state.Stream.BeginRead(state.Buffer, 0, state.Buffer.Length, EndReceiveInput, state);
}
catch (IOException)
{
ProcessExit();
((IController)this).ClosePort();
}
}
private void ReceiveInput()
{
int invalidOperationRetry = 5;
byte[] buf = new byte[128];
try
{
if (m_state.IsRunning)
{
Stream stream = ((IControllerLocal)this).OpenPort();
if (!m_asynchronousProcessing)
{
ReceiveSynchronous(buf, invalidOperationRetry);
}
else
{
ReceiveInputState state = new ReceiveInputState
{
Buffer = buf,
Stream = stream,
InvalidOperationRetry = invalidOperationRetry
};
BeginReceiveInput(state);
}
}
}
catch (InvalidOperationException)
{
ProcessExit();
((IController)this).ClosePort();
}
}