public void SignIn(SessionInfo session)
{
session.Callback = client;
session.SessionId = OperationContext.Current.SessionId;
Console.WriteLine("{0} User {1} signs in", DateTime.Now.Millisecond, session.UserName);
Sessions.AddOrUpdate(session.SessionId, session, (key, value) => session);
string res = null;
if (syncHistory.TryPeek(out res)) // get the latest object and then push it to client
client.Push(res);
}
public void SignOut()
{
SessionInfo info = new SessionInfo();
if (Sessions.TryRemove(OperationContext.Current.SessionId, out info))
Console.WriteLine("{0} User {1} signs out", DateTime.Now.Millisecond, info.UserName);
}