rt/examples/cycle/notify.c

27 lines
482 B
C

#include <rt/cycle.h>
#include <rt/log.h>
#include <rt/notify.h>
#include <rt/task.h>
#include <rt/trap.h>
static volatile uint32_t start_cycle = 0;
static volatile uint32_t cycles = 0;
static RT_NOTIFY(note, 0);
static void poster(void)
{
start_cycle = rt_cycle();
rt_notify_post(&note);
}
static void waiter(void)
{
rt_notify_wait(&note);
cycles = rt_cycle() - start_cycle;
rt_trap();
}
RT_TASK(poster, RT_STACK_MIN, 1);
RT_TASK(waiter, RT_STACK_MIN, 2);