55 lines
1.1 KiB
C
55 lines
1.1 KiB
C
#include <rt/assert.h>
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#include <rt/atomic.h>
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#include <rt/log.h>
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#include <rt/queue.h>
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#include <rt/task.h>
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#include <rt/trap.h>
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#include <stdint.h>
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RT_QUEUE_STATIC(queue, uint32_t, 10);
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static void pusher(uintptr_t i)
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{
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rt_task_drop_privilege();
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uint32_t x = (uint32_t)i;
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for (;;)
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{
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rt_queue_push(&queue, &x);
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++x;
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}
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}
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#define NPUSHERS 2
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#define TASK_INC UINT32_C(0x1000000)
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static uint32_t max_elem[NPUSHERS] = {0};
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static rt_atomic_size_t num_popped = 0;
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static void popper(void)
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{
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rt_task_drop_privilege();
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uint32_t x;
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for (;;)
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{
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rt_queue_pop(&queue, &x);
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rt_atomic_fetch_add(&num_popped, 1, RT_ATOMIC_RELAXED);
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uint32_t task = x / TASK_INC;
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uint32_t elem = x % TASK_INC;
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rt_assert(elem >= max_elem[task], "out of order");
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max_elem[task] = elem;
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}
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}
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static void timeout(void)
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{
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rt_task_drop_privilege();
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rt_task_sleep(1000);
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rt_trap();
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}
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RT_TASK(popper, RT_STACK_MIN, 1);
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RT_TASK_ARG(pusher, 0, RT_STACK_MIN, 1);
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RT_TASK_ARG(pusher, TASK_INC, RT_STACK_MIN, 1);
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RT_TASK(timeout, RT_STACK_MIN, 0);
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