On Tue, Aug 03, 2004 at 02:18:51PM +0200, Marc Kleine-Budde wrote:
> I'm interested when and by whom the pod.svctable functions are used.
> What I've figured out so far:
> .tickhandler = set by xnpod_start_timer, called every tick in
> periodic mode, in aperiodic mode at every shot
I've looked at the tickhandler a bit deeper.
In the function xnpod_start_timer function, the svctable.tickhandler is
set to the given tickhandler, then the tickhandler is registered to
be the handler of the timerinterrupt. With the effect, if you change the
svctable.tickhandler, the interrupt still calls the old function.
int xnpod_start_timer (u_long nstick, xnisr_t tickhandler)
{
...
nkpod->svctable.tickhandler = tickhandler;
...
xnintr_init(&nkclock,0,nkpod->svctable.tickhandler,0);
...
}
The svctable.tickhandler is never used again in the whole system. Or
have I missed sth in the VM oder the simulator.
Marc
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