Re: safe shut-down

[Henri Torgemane <henrit yahoo-inc com>]

You can catch a lot of signal, except KILL.
No matter what you do, the user can send a SIGKILL to your process and stop
it without giving it a fair chance to clean.


Henri


"Michael T. Babcock" wrote:

> In other words, consider trapping the TERM and KILL signals instead, doing
> a fast clean-up (no asking questions) and then exit.
>
> Havoc Pennington wrote:
>
> > Carlos Pereira <carlos pehoe civil ist utl pt> writes:
> > > > My app must be close with the close button (x button).
> > > > If the user launches the app in a console, he can close it
> > > > with crtl+c and this produces a non-safe shut-down.
> > > > How can I avoid this?
> > >
> > > #include <signal.h>
> > >
> > > /* to disable crtl+c */
> > > signal (SIGINT, SIG_IGN);
> > >
> > > /* to enable crtl+c */
> > > signal(SIGINT, SIG_DFL);
> > >
> > > This is AINSI C code, so it should really work everywhere.
> >
> > Of course the user can still kill -9, and your app can still crash, so
> > you probably don't want to depend on disabling Ctrl-C.
>
> --
> Michael T. Babcock, C.T.O. FibreSpeed
> http://www.fibrespeed.net/~mbabcock
>
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