/// <summary>
/// Ends an asynchronous request to create a new <see cref="SecureSocket"/> to accept an incoming connection request.
/// </summary>
/// <param name="asyncResult">Stores state information for this asynchronous operation as well as any user defined data.</param>
/// <returns>A SecureSocket to handle the incoming connection.</returns>
/// <remarks>The returned <see cref="VirtualSocket"/> can be cast to a SecureSocket if necessary.</remarks>
/// <exception cref="ArgumentNullException"><paramref name="asyncResult"/> is a null reference (<b>Nothing</b> in Visual Basic).</exception>
/// <exception cref="ArgumentException"><paramref name="asyncResult"/> was not created by a call to <see cref="BeginAccept"/>.</exception>
/// <exception cref="SocketException">An operating system error occurs while accessing the SecureSocket.</exception>
/// <exception cref="ObjectDisposedException">The SecureSocket has been closed.</exception>
/// <exception cref="SecurityException">Unable to create the credentials -or- client authentication error.</exception>
public override VirtualSocket EndAccept(IAsyncResult asyncResult)
{
// Make sure everything is in order
if (asyncResult == null)
{
throw new ArgumentNullException();
}
if (m_AcceptResult == null)
{
throw new InvalidOperationException();
}
if (m_AcceptResult != asyncResult)
{
throw new ArgumentException();
}
AsyncAcceptResult ar = m_AcceptResult;
// Process the (secure) EndAccept
// block if the operation hasn't ended yet
if (!ar.IsCompleted)
{
ar.AsyncWaitHandle.WaitOne();
}
m_AcceptResult = null;
if (ar.AsyncException != null)
{
throw ar.AsyncException;
}
return(ar.AcceptedSocket);
}
/// <summary>
/// Begins an asynchronous request to create a new <see cref="SecureSocket"/> to accept an incoming connection request.
/// </summary>
/// <param name="callback">The <see cref="AsyncCallback"/> delegate.</param>
/// <param name="state">An object containing state information for this request.</param>
/// <returns>An <see cref="IAsyncResult"/> that references the asynchronous SecureSocket creation.</returns>
/// <exception cref="ArgumentNullException"><paramref name="callback"/> is a null reference (<b>Nothing</b> in Visual Basic).</exception>
/// <exception cref="SocketException">An operating system error occurs while creating the SecureSocket.</exception>
/// <exception cref="ObjectDisposedException">The SecureSocket has been closed.</exception>
public override IAsyncResult BeginAccept(AsyncCallback callback, object state)
{
if (m_AcceptResult != null)
{
throw new SocketException();
}
AsyncAcceptResult ret = new AsyncAcceptResult(callback, state, null);
m_AcceptResult = ret;
base.BeginAccept(new AsyncCallback(this.OnAccept), null);
return(ret);
}
/// <summary>
/// Begins an asynchronous request to create a new <see cref="SecureSocket"/> to accept an incoming connection request.
/// </summary>
/// <param name="callback">The <see cref="AsyncCallback"/> delegate.</param>
/// <param name="state">An object containing state information for this request.</param>
/// <returns>An <see cref="IAsyncResult"/> that references the asynchronous SecureSocket creation.</returns>
/// <exception cref="ArgumentNullException"><paramref name="callback"/> is a null reference (<b>Nothing</b> in Visual Basic).</exception>
/// <exception cref="SocketException">An operating system error occurs while creating the SecureSocket.</exception>
/// <exception cref="ObjectDisposedException">The SecureSocket has been closed.</exception>
public override IAsyncResult BeginAccept(AsyncCallback callback, object state) {
if (m_AcceptResult != null)
throw new SocketException();
AsyncAcceptResult ret = new AsyncAcceptResult(callback, state, null);
m_AcceptResult = ret;
base.BeginAccept(new AsyncCallback(this.OnAccept), null);
return ret;
}
/// <summary>
/// Ends an asynchronous request to create a new <see cref="SecureSocket"/> to accept an incoming connection request.
/// </summary>
/// <param name="asyncResult">Stores state information for this asynchronous operation as well as any user defined data.</param>
/// <returns>A SecureSocket to handle the incoming connection.</returns>
/// <remarks>The returned <see cref="VirtualSocket"/> can be cast to a SecureSocket if necessary.</remarks>
/// <exception cref="ArgumentNullException"><paramref name="asyncResult"/> is a null reference (<b>Nothing</b> in Visual Basic).</exception>
/// <exception cref="ArgumentException"><paramref name="asyncResult"/> was not created by a call to <see cref="BeginAccept"/>.</exception>
/// <exception cref="SocketException">An operating system error occurs while accessing the SecureSocket.</exception>
/// <exception cref="ObjectDisposedException">The SecureSocket has been closed.</exception>
/// <exception cref="SecurityException">Unable to create the credentials -or- client authentication error.</exception>
public override VirtualSocket EndAccept(IAsyncResult asyncResult, CancellationToken cancel, ISocketMonitor monitor = null)
{
// Make sure everything is in order
if (asyncResult == null)
throw new ArgumentNullException();
if (m_AcceptResult == null)
throw new InvalidOperationException();
if (m_AcceptResult != asyncResult)
throw new ArgumentException();
AsyncAcceptResult ar = m_AcceptResult;
// Process the (secure) EndAccept
// block if the operation hasn't ended yet
while (!ar.IsCompleted)
{
ar.AsyncWaitHandle.WaitOne(200, false);
}
if (cancel.IsCancellationRequested)
{
cancel.ThrowIfCancellationRequested();
return null;
}
m_AcceptResult = null;
if (ar.AsyncException != null)
throw ar.AsyncException;
if (monitor != null)
monitor.Attach(ar.AcceptedSocket);
return ar.AcceptedSocket;
}
/// <summary>
/// Ends an asynchronous request to create a new <see cref="SecureSocket"/> to accept an incoming connection request.
/// </summary>
/// <param name="asyncResult">Stores state information for this asynchronous operation as well as any user defined data.</param>
/// <returns>A SecureSocket to handle the incoming connection.</returns>
/// <remarks>The returned <see cref="VirtualSocket"/> can be cast to a SecureSocket if necessary.</remarks>
/// <exception cref="ArgumentNullException"><paramref name="asyncResult"/> is a null reference (<b>Nothing</b> in Visual Basic).</exception>
/// <exception cref="ArgumentException"><paramref name="asyncResult"/> was not created by a call to <see cref="BeginAccept"/>.</exception>
/// <exception cref="SocketException">An operating system error occurs while accessing the SecureSocket.</exception>
/// <exception cref="ObjectDisposedException">The SecureSocket has been closed.</exception>
/// <exception cref="SecurityException">Unable to create the credentials -or- client authentication error.</exception>
public override VirtualSocket EndAccept(IAsyncResult asyncResult)
{
// Make sure everything is in order
if (asyncResult == null)
throw new ArgumentNullException();
if (m_AcceptResult == null)
throw new InvalidOperationException();
if (m_AcceptResult != asyncResult)
throw new ArgumentException();
AsyncAcceptResult ar = m_AcceptResult;
// Process the (secure) EndAccept
// block if the operation hasn't ended yet
if (!ar.IsCompleted)
ar.AsyncWaitHandle.WaitOne();
m_AcceptResult = null;
if (ar.AsyncException != null)
throw ar.AsyncException;
return ar.AcceptedSocket;
}
