private void TimerCounter()
{
Thread.Sleep(Time);
MailInfo mailInfo = new MailInfo()
{
From = "Timer",
To = "User",
Message = "Timer finished work"
};
NewMail?.Invoke(this, mailInfo);
timerThread.Abort();
}
//Step 3:
//Method Responsible for Raising Event (Notify registered objects that event occurred)
//by convention protected virtual void (so inheritance is possible, if class is sealed - private, nonvirtual)
protected virtual void OnNewMail(MailEventArgs e)
{
//variant 1
//not thread safe
//if (NewMail != null) NewMail(this, e);
//variant 2
//Thread safe in theory but compiler could optimize it
//EventHandler<MailEventArgs> TempNewMail = NewMail;
//if (TempNewMail != null) TempNewMail(this, e);
//variant 3
//according to Rihter
//EventHandler<MailEventArgs> TempNewMail = Volatile.Read(ref NewMail);
//if (TempNewMail != null) TempNewMail(this, e);
//variant 4
//according to C#6.0 - it is thread safe
NewMail?.Invoke(this, e);
}
public virtual void OnNewMail(NewMailEvent e)
{
NewMail?.Invoke(this, e);
}
/// <summary> /// Notifies all subscrbers. /// </summary> protected virtual void OnNewMail(DataEventArgs info) => NewMail?.Invoke(this, info);
protected virtual void OnNewMail(MailMessage mail)
{
NewMail?.Invoke(mail);
}
/// <summary>
/// Notifies all observers.
/// </summary>
protected virtual void OnNewMail(WeatherInfoEventArgs info)
{
NewMail?.Invoke(this, info);
}
protected virtual void OnNewMail(NewMailEventArgs e)
{
NewMail?.Invoke(this, e);
}
