Subject: Re: callout question
To: Daniel <email@example.com>
From: Nathan J. Williams <firstname.lastname@example.org>
Date: 11/26/2001 08:56:02
Daniel <email@example.com> writes:
> Do you have to call callout_init() before each callout_reset()?
No. Look at the setitimer() code in kern/kern_time.c for an example;
it calls callout_reset() repeatedly, but only calls callout_init() once.
> What will happen if you call callout_init() and pass an already
> initialized callout structure?
If it's only initialized, and not currently active, nothing bad will
happen. If it is on a callout queue (active and has not yet fired),
very bad things can happen, as you will trash one of the linked lists
of callouts. Don't do that.