private void ImagesPipeConnected(IAsyncResult e)
{
try
{
if (ImagesPipe != null)
{
ImagesPipe.EndWaitForConnection(e);
ReadImagesPipe();
}
}
catch (Exception exc)
{
Trace.TraceError("Failed to wait for connection on images pipe, remote session {0} ({1})", RemoteSession.Id, exc);
}
}
public void CreatePipes()
{
try
{
// close the pipes if already exist; they will be re-created below
DeletePipes();
// set the pipes access rights
var pipeSecurity = new PipeSecurity();
var pipeAccessRule = new PipeAccessRule(AccountHelper.GetEveryoneGroupName(), PipeAccessRights.ReadWrite, AccessControlType.Allow);
pipeSecurity.AddAccessRule(pipeAccessRule);
// create the pipes
_inputsPipe = new NamedPipeServerStream(
"remotesession_" + RemoteSession.Id + "_inputs",
PipeDirection.InOut,
1,
PipeTransmissionMode.Message,
PipeOptions.Asynchronous,
InputsPipeBufferSize,
InputsPipeBufferSize,
pipeSecurity);
_imagesPipe = new NamedPipeServerStream(
"remotesession_" + RemoteSession.Id + "_outputs",
PipeDirection.InOut,
1,
PipeTransmissionMode.Message,
PipeOptions.Asynchronous,
ImagesPipeBufferSize,
ImagesPipeBufferSize,
pipeSecurity);
// wait for client connection
InputsPipe.BeginWaitForConnection(InputsPipeConnected, InputsPipe.GetHashCode());
ImagesPipe.BeginWaitForConnection(ImagesPipeConnected, ImagesPipe.GetHashCode());
}
catch (Exception exc)
{
Trace.TraceError("Failed to create pipes, remote session {0} ({1})", RemoteSession.Id, exc);
}
}
private byte[] ReadImagesPipeMessage()
{
try
{
var memoryStream = new MemoryStream();
var buffer = new byte[ImagesPipeBufferSize];
do
{
memoryStream.Write(buffer, 0, ImagesPipe.Read(buffer, 0, buffer.Length));
} while (ImagesPipe != null && ImagesPipe.IsConnected && ImagesPipe.CanRead && !ImagesPipe.IsMessageComplete);
return(memoryStream.ToArray());
}
catch (Exception exc)
{
Trace.TraceError("Failed to read images pipe message, remote session {0} ({1})", RemoteSession.Id, exc);
return(null);
}
}