Mail Archives: djgpp/1996/12/17/08:16:46
Michael Schuster wrote:
[...]
> I've written the wrapper and other relating stuff preparing the
> interrupt as described in libc - info. The
> Interrupt was ok, but when leaving the program, it crashed, and I
> never knew why.
> In my interrupt routine an short array was filled with values by
> inportb (myport).
>
> When I defined the array e.g. with
>
> short data[11][120];
>
> and used it in the IR, the program crashed when leaving the IR or
> stopping it within the programm.
> After declaring with
>
> short **data;
>
> and malloc'ed the pointer the IR works stable, and now works
> with allegro and rhide pretty good.
>
> Does anyone know why the difference in behaviour?
>
Out of the blue:
Do you ever lock data, or your handler routines?
What I just guess is that for what ever
reasons parts of the static data area, including
the array, gets swapped out. The malloc'd region
happens to remain in memory and you were just
lucky. OTOH, if you _did_ lock everything
you had to lock, I lack an explaination.
--
Ciao
Tom
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