27 lines
467 B
C
27 lines
467 B
C
#include <rt/cycle.h>
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#include <rt/log.h>
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#include <rt/sem.h>
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#include <rt/task.h>
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#include <rt/trap.h>
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static volatile uint32_t start_cycle = 0;
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static volatile uint32_t cycles = 0;
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static RT_SEM(sem, 0);
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static void poster(void)
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{
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start_cycle = rt_cycle();
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rt_sem_post(&sem);
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}
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static void waiter(void)
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{
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rt_sem_wait(&sem);
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cycles = rt_cycle() - start_cycle;
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rt_trap();
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}
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RT_TASK(poster, RT_STACK_MIN, 1);
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RT_TASK(waiter, RT_STACK_MIN, 2);
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