static void sleep_tick_adjust(uint32_t ms) { uint32_t diff; diff = rt_tick_from_millisecond(ms); rt_tick_set(rt_tick_get() + diff); { struct rt_thread *thread; /* check time slice */ thread = rt_thread_self(); if (thread->remaining_tick <= diff) { /* change to initialized tick */ thread->remaining_tick = thread->init_tick; /* yield */ rt_thread_yield(); } else { thread->remaining_tick -= diff; } /* check timer */ rt_timer_check(); } }
/** * This function will notify kernel there is one tick passed. Normally, * this function is invoked by clock ISR. */ void rt_tick_increase(void) { struct rt_thread *thread; /* increase the global tick */ ++ rt_tick; /* check time slice */ thread = rt_thread_self(); -- thread->remaining_tick; if (thread->remaining_tick == 0) { /* change to initialized tick */ thread->remaining_tick = thread->init_tick; /* yield */ rt_thread_yield(); } /* check timer */ rt_timer_check(); }