> > Will rtl_no_interrupts(), rtl_restore_interrupts() help
> > me in achieving this atomicity. But if a high priority
> > thread is kicked will the scheduler schedule this high
> > priority thread immediately ?
>
> As far as I know, if interrupts are disabled, the thread can't be kicked.
> Nothing can happen but the execution of the current code.
>
nop - rt-signals are not disabled by rtl_no_interrupts :
thread A (non periodic):
while(1){
rtl_no_interrupts(flags);
pthread_suspend_np(pthread_selfe());
...wait for signal from other rt-thread...
do_something();
rtl_restore_interrtups(flags);
}
thread B (periodic thread):
pthread_make_periodic_np(....)
while(1){
pthread_wait_np();
pthread_kill(threadA,RTL_SIGNAL_WAKEUP);
}
then hardware interrupts will be disabled for the critical section in thread
A but the periodic thread B will still wake it up.
hofrat
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