public void VirtualChannelOpenEvent(int openHandle, ChannelEvents Event, IntPtr pData, int dataLength, uint totalLength, ChannelFlags dataFlags)
{
Debug.Print(DateTime.Now + " " + Environment.MachineName + ": VirtualChannelOpenEvent: " + Event);
switch (Event)
{
case ChannelEvents.DataReceived:
var data = new byte[dataLength];
Marshal.Copy(pData, data, 0, dataLength);
switch (dataFlags & ChannelFlags.Only)
{
case ChannelFlags.Only:
MessageReceived(ChannelMessage.FromByteArray(data));
break;
case ChannelFlags.First:
memoryStream = new MemoryStream((int)totalLength);
memoryStream.Write(data, 0, data.Length);
break;
case ChannelFlags.Middle:
if (memoryStream != null)
{
memoryStream.Write(data, 0, data.Length);
}
break;
case ChannelFlags.Last:
if (memoryStream != null)
{
memoryStream.Write(data, 0, data.Length);
memoryStream.Position = 0;
MessageReceived(ChannelMessage.FromStream(memoryStream));
memoryStream = null;
}
break;
}
break;
case ChannelEvents.WriteCanceled:
case ChannelEvents.WriteComplete:
/*
* The VirtualChannelWrite function is asynchronous. When the write operation has been completed,
* your VirtualChannelOpenEvent function receives a CHANNEL_EVENT_WRITE_COMPLETE notification.
* Until that notification is received, the caller must not free or reuse the pData buffer passed to VirtualChannelWrite
*/
Marshal.FreeHGlobal(pData);
break;
}
}
