private void InitializeConnectData(NamedPipeConnectData connectData)
{
connectData._are = new AutoResetEvent(false);
connectData._pipe = CreateNamedPipe(connectData._pipeName);
connectData._overlapped = new Overlapped(0, 0, connectData._are.SafeWaitHandle.DangerousGetHandle(), null);
connectData._isConnected = Native.ConnectNamedPipe(connectData._pipe.DangerousGetHandle(), connectData._overlapped);
if (!connectData._isConnected && Native.GetLastError() == Native.ERROR_PIPE_CONNECTED)
{
connectData._isConnected = true;
}
}
private void InitializeConnectData(NamedPipeConnectData connectData)
{
connectData._are = new AutoResetEvent(false);
connectData._pipe = CreateNamedPipe(connectData._pipeName);
connectData._overlapped = new Overlapped(0, 0, connectData._are.SafeWaitHandle.DangerousGetHandle(), null);
connectData._isConnected = Native.ConnectNamedPipe(connectData._pipe.DangerousGetHandle(), connectData._overlapped);
if (!connectData._isConnected && Native.GetLastError() == Native.ERROR_PIPE_CONNECTED)
{
connectData._isConnected = true;
}
}
private int FindConnectDataIndex(ComPortHandle handle)
{
for (int i = 0; i < _connectData.Length; i++)
{
NamedPipeConnectData connectData = _connectData[i];
if (connectData != null && connectData._comPortHandle == handle)
{
return(i);
}
}
return(-1);
}
private void ConnectToClients()
{
VerifyAccess();
for (int iPort = 0; iPort < _connectData.Length; iPort++)
{
NamedPipeConnectData connectData = _connectData[iPort];
if (connectData != null && connectData._isConnected && !connectData._isRegistered)
{
RegisterNamedPipePort(connectData);
}
}
}
private void PipeServerThreadProc()
{
int shutdownHandleIndex = _connectData.Length;
int moreClientsIndex = shutdownHandleIndex + 1;
WaitHandle[] handles = new WaitHandle[moreClientsIndex + 1];
handles[shutdownHandleIndex] = this.Emulator.ShutdownHandle;
handles[moreClientsIndex] = _areClients;
while (true)
{
lock (this)
{
for (int iPort = 0; iPort < shutdownHandleIndex; iPort++)
{
NamedPipeConnectData connectData = _connectData[iPort];
handles[iPort] = connectData._are;
}
}
int waitResult = WaitHandle.WaitAny(handles);
if (waitResult == shutdownHandleIndex)
{
//Shutdown
break;
}
if (waitResult < shutdownHandleIndex)
{
_connectData[waitResult]._isConnected = true;
this.Emulator.BeginInvoke(
delegate
{
ConnectToClients();
}
);
}
}
}
private void RegisterNamedPipePort(NamedPipeConnectData connectData)
{
VerifyAccess();
AsyncFileStream stream = new AsyncFileStream(connectData._pipeName, connectData._pipe);
ComPortToNamedPipe namedPipePort = new ComPortToNamedPipe(connectData._pipeName, stream);
namedPipePort.ComPortHandle = connectData._comPortHandle;
this.Emulator.RegisterComponent(namedPipePort);
connectData._isRegistered = true;
//The TinyCLR doesn't call Initialize for the debug NamedPipe ports always
//and we are swapping out components anyway, so we need to force the
//initialization here to start the reading
namedPipePort.DeviceInitialize();
}
public void RegisterNamedPipe( string pipeName, ComPortHandle handle )
{
Debug.Assert( FindConnectDataIndex( handle ) == -1 );
Debug.Assert(this.Emulator.State < Emulator.EmulatorState.Initialize);
//thread safety??
NamedPipeConnectData connectData = new NamedPipeConnectData();
connectData._comPortHandle = handle;
connectData._pipeName = pipeName;
InitializeConnectData( connectData );
NamedPipeConnectData[] connectDataNew = new NamedPipeConnectData[_connectData.Length + 1];
Array.Copy( _connectData, connectDataNew, _connectData.Length );
connectDataNew[_connectData.Length] = connectData;
_connectData = connectDataNew;
_areClients.Set();
}
public void RegisterNamedPipe(string pipeName, ComPortHandle handle)
{
Debug.Assert(FindConnectDataIndex(handle) == -1);
Debug.Assert(this.Emulator.State < Emulator.EmulatorState.Initialize);
//thread safety??
NamedPipeConnectData connectData = new NamedPipeConnectData();
connectData._comPortHandle = handle;
connectData._pipeName = pipeName;
InitializeConnectData(connectData);
NamedPipeConnectData[] connectDataNew = new NamedPipeConnectData[_connectData.Length + 1];
Array.Copy(_connectData, connectDataNew, _connectData.Length);
connectDataNew[_connectData.Length] = connectData;
_connectData = connectDataNew;
_areClients.Set();
}
private void UnregisterNamedPipePort(ComPort port)
{
VerifyAccess();
int idx = FindConnectDataIndex(port.ComPortHandle);
if (idx != -1)
{
NamedPipeConnectData connectData = _connectData[idx];
Debug.Assert(connectData._isConnected);
connectData._isRegistered = false;
connectData._isConnected = false;
connectData._pipe.Dispose();
//reset connectdata
InitializeConnectData(connectData);
port.DeviceUninitialize();
_areClients.Set();
}
}
private void RegisterNamedPipePort(NamedPipeConnectData connectData)
{
VerifyAccess();
AsyncFileStream stream = new AsyncFileStream(connectData._pipeName, connectData._pipe);
ComPortToNamedPipe namedPipePort = new ComPortToNamedPipe(connectData._pipeName, stream);
namedPipePort.ComPortHandle = connectData._comPortHandle;
this.Emulator.RegisterComponent(namedPipePort);
connectData._isRegistered = true;
//The TinyCLR doesn't call Initialize for the debug NamedPipe ports always
//and we are swapping out components anyway, so we need to force the
//initialization here to start the reading
namedPipePort.DeviceInitialize();
}
