public SendFileInfo(string fileName, CrestronSocket socket, TransmitFileOptions flags, SendFileAsyncResult iar, AsyncCallback callback)
{
FileName = fileName;
Socket = socket;
Flags = flags;
Iar = iar;
Callback = callback;
}
public IAsyncResult BeginSendFile(string fileName, byte[] preBuffer, byte[] postBuffer, TransmitFileOptions flags, AsyncCallback callback, object state)
{
if (fileName == null)
{
throw new ArgumentNullException("fileName");
}
if (!File.Exists(fileName))
{
throw new FileNotFoundException("file not found");
}
CheckDisposed();
if (!Connected)
{
throw new NotSupportedException("not connected to remote host");
}
var iar = new SendFileAsyncResult {
AsyncState = state
};
ThreadPool.QueueUserWorkItem(o =>
{
var sfi = (SendFileInfo)o;
using (var fs = new FileStream(sfi.FileName, FileMode.Open, FileAccess.Read, FileShare.Read))
using (var ns = sfi.Socket.GetStream())
{
if (preBuffer != null)
{
ns.Write(preBuffer, 0, preBuffer.Length);
}
fs.CopyTo(ns);
if (postBuffer != null)
{
ns.Write(postBuffer, 0, postBuffer.Length);
}
}
if (sfi.Flags.HasFlag(TransmitFileOptions.Disconnect))
{
sfi.Socket.Close();
}
sfi.Iar.IsCompleted = true;
((CEvent)sfi.Iar.AsyncWaitHandle).Set();
if (sfi.Callback != null)
{
DoAsyncCallback(sfi.Callback, sfi.Iar);
}
}, new SendFileInfo(fileName, this, flags, iar, callback));
return(iar);
}
public IAsyncResult BeginSendFile (string fileName,
byte[] preBuffer,
byte[] postBuffer,
TransmitFileOptions flags,
AsyncCallback callback,
object state)
{
if (disposed && closed)
throw new ObjectDisposedException (GetType ().ToString ());
if (!connected)
throw new NotSupportedException ();
if (!File.Exists (fileName))
throw new FileNotFoundException ();
SendFileHandler d = new SendFileHandler (SendFile);
return new SendFileAsyncResult (d, d.BeginInvoke (fileName, preBuffer, postBuffer, flags, ar => {
SendFileAsyncResult sfar = new SendFileAsyncResult (d, ar);
callback (sfar);
}, state));
}
