From: Philipp Taprogge <Philipp.Taprogge@...>
Date: 2006-11-05T10:35:10+09:00
Subject: trap and multiple occurences

Hi all!

I am kind of new to ruby so forgive if this is really stupid...

I am experimenting with trapping signals on linux.

It seems like a ruby script can only handle one signal at a time.
While in the trap block, all further occurences of that same signal
are lost.
What I want to do is react differently if a, say, SIGUSR1 comes in
while the script is already in that signal's trap block.
Is that at all possible?

A bit of background:
A have a script that parses some data and displays it on an external
lcd panel. The panel's only button can bind a command. I have bound
"kill -SIGUSR1 (pidof myscript.rb)" to it.
Now I want to implement some kind of saveguard where the first press
displays a warning ("are you sure...?") and the second while still
in the trap actually performs the function.

Thanks in advance and best regards,

	Phil