# To subscribers of the xforms list from "Danny G. Holstein" <danny@holstein.tritonetd.com> :
On 03-Apr-00 Steve Lamont wrote:
># To subscribers of the xforms list from spl@szechuan.ucsd.edu (Steve Lamont)
># :
>
>> It seems as if the timer callbacks are disabled when my main program calls
>> sleep(seconds), is that by design? Is there a workaround?
>
> *Everything* is disabled when you enter a system call that blocks.
> You've siezed control of the CPU and handed it over to the system.
> XForms can only dispatch callbacks when it has control.
>
> Why are you calling sleep()? Can't you use a timeout instead?
>
Because, I don't want to use a callback. I'm processing a device with a long
age process and want to update the parameters screen and check for faults on
a short interval (handled by timers) but want to log the results and increase
the load on a much longer interval, my sleep() command is part of this slower
loop and I want the execution to stay within that loop. An fl_sleep() function
that allows the callbacks to work and returns to the calling function would
make my life easier. I've got a work-around where I loop and count off the
time I need.
...Dan
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