Static Finalizer

Question

What is the right way to perform some static finallization?

There is no static destructor. The AppDomain.DomainUnload event is not raised in the default domain. The AppDomain.ProcessExit event shares the total time of the three seconds (default settings) between all event handlers, so it's not really usable.

Answer 1

Herfried Wagner has written an excellent article explaining how to implement this – alas, in German (and VB). Still, the code should be understandable.

I've tried it:

static readonly Finalizer finalizer = new Finalizer();  sealed class Finalizer {   ~Finalizer() {     Thread.Sleep(1000);     Console.WriteLine("one");     Thread.Sleep(1000);     Console.WriteLine("two");     Thread.Sleep(1000);     Console.WriteLine("three");     Thread.Sleep(1000);     Console.WriteLine("four");     Thread.Sleep(1000);     Console.WriteLine("five");   } } 

It seems to work exactly the same way as the AppDomain.ProcessExit event does: the finalizer gets ca. three seconds...

Answer 2

Basically, you can't. Design your way around it to the fullest extent possible.

Don't forget that a program can always terminate abruptly anyway - someone pulling out the power being the obvious example. So anything you do has to be "best effort" - in which case I'd certainly hope that AppDomain.ProcessExit would be good enough.

What do you need to do, in your particular case?