Detecting Windows Shutdown

Since Windows tries to shutdown all applications before shutting itself
down (I think), you ought to be able to just add an at_exit handler to
your application to do what you want.

See Kernel#at_exit.

However, it is my opinion that any Webrick based Ruby application (i.e.
server) should probably be run as a Service. If you decide to do this,
and you use the win32-service package, just define the exit behavior in
Daemon#service_stop and/or Daemon#service_shutdown methods.

Regards,

Dan

···

-----Original Message-----
From: Dennis Misener [mailto:dm@dymaxion.com]
Sent: Wednesday, June 29, 2005 8:51 AM
To: ruby-talk ML
Subject: Detecting Windows Shutdown

I needed to perform an orderly shutdown of a Webrick based Ruby
application.

I thought about trying to catch the WM_QUERYENDSESSION
message which is
sent to all programs when a request to shutdown Windows is made, in
order to execute some code before Windows exits.

Does anyone know how to do that in Ruby?

Is it even possible?