// return true if the uri is different
public bool StartPing()
{
lastPingTime = DateTime.Now;
bool isNewUri = false;
try {
OperationalUIFacade facade = (OperationalUIFacade)OperationalInterface.ObjectDirectory.Resolve(name);
string newUri = RemotingServices.GetObjectUri(facade);
if (newUri != uri)
{
isNewUri = true;
uri = newUri;
if (responseStatus != ResponseStatus.Unknown)
{
responseStatus = ResponseStatus.Unknown;
parent.OnPingCompleted(this);
}
}
pingInvoker = facade.Ping;
ThreadPool.QueueUserWorkItem(DoPing, pingInvoker);
}
catch (Exception) {
if (responseStatus != ResponseStatus.Down)
{
responseStatus = ResponseStatus.Down;
parent.OnPingCompleted(this);
}
}
return(isNewUri);
}