/// <summary>
/// Called by .NET Remoting when an async call is finished.
/// </summary>
/// <param name="ar"></param>
public static void OurAsyncCallbackHandler(IAsyncResult ar)
{
AsyncCallBackData asyncCallBackData = (AsyncCallBackData)ar.AsyncState;
try
{
object result = asyncCallBackData.RemoteAsyncDelegate.EndInvoke(ar);
}
catch (Exception ex)
{
Console.WriteLine("Client call failed: {0}.", ex.Message);
// remove the failed client from our list
lock (_clients)
{
_clients.Remove(RemotingServices.GetObjectUri(asyncCallBackData.MbrBeingCalled));
}
}
}
/// <summary>
/// Sends the message to all clients.
/// </summary>
/// <param name="message">Message to be sent.</param>
/// <returns>Number of clients having received this message.</returns>
public void SendMessage(string message)
{
lock (_clients)
{
Console.WriteLine("\"{0}\" message will be sent to all clients.", message);
AsyncCallback asyncCallback = new AsyncCallback(OurAsyncCallbackHandler);
foreach (DictionaryEntry entry in _clients)
{
IChatClient iChatClient = (IChatClient)entry.Value;
ReceiveMessageEventHandler remoteAsyncDelegate = new ReceiveMessageEventHandler(iChatClient.ReceiveMessage);
AsyncCallBackData asyncCallBackData = new AsyncCallBackData();
asyncCallBackData.RemoteAsyncDelegate = remoteAsyncDelegate;
asyncCallBackData.MbrBeingCalled = (MarshalByRefObject)iChatClient;
IAsyncResult RemAr = remoteAsyncDelegate.BeginInvoke(message, asyncCallback, asyncCallBackData);
}
}
}
