internal override void RegisterInternal(EmulatorComponent ec)
{
VerifyAccess();
ComPort comPort = ec as ComPort;
if (comPort == null)
{
throw new Exception("Attempt to register a non ComPort with ComPortCollection.");
}
ComPortHandle handle = comPort.ComPortHandle;
Debug.Assert(!(comPort is ComPortNull));
if (Exists(handle))
{
throw new Exception("Duplicate " + handle + " ComPorts found.");
}
_ports[handle] = comPort;
_validPorts.Add(comPort);
base.RegisterInternal(ec);
}
public ComPort this[ComPortHandle portHandle]
{
get
{
if (Exists(portHandle) == false)
{
throw new ArgumentException("ComPort " + portHandle + " does not exist.");
}
return(_ports[portHandle]);
}
}
internal ComPort DeviceGet(ComPortHandle portHandle)
{
ComPort port;
if (_ports.TryGetValue(portHandle, out port) == false)
{
port = new ComPortNull(portHandle);
_ports.Add(portHandle, port);
}
if (port is ComPortNull && portHandle.TransportType != TransportType.Debug)
{
ComPortNull nullPort = (ComPortNull)port;
if (nullPort.DisplayWarning || Emulator.Verbose)
{
Trace.WriteLine("Warning: System attempts to access COM Port " + portHandle + " that was not configured.");
nullPort.TurnOffWarning();
}
}
return(port);
}
internal ComPortNull(ComPortHandle handle)
{
this.ComPortHandle = handle;
}
private bool Exists(ComPortHandle handle)
{
return(_ports.ContainsKey(handle) && ((_ports[handle] is ComPortNull) == false));
}
private ComPort GetComPort(int nativeHandle)
{
return(this.Emulator.ComPortCollection.DeviceGet(ComPortHandle.ConvertFromNative(nativeHandle)));
}
