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Rev 4341 Rev 4348
Line 48... Line 48...
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static uint32_t seed = 0xdeadbeef;
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static uint32_t seed = 0xdeadbeef;
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static uint32_t random(uint32_t max)
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static uint32_t random(uint32_t max)
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{
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{
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    uint32_t rc;
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    uint32_t rc;
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    spinlock_lock(&sem_lock);  
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    spinlock_lock(&sem_lock);
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    rc = seed % max;
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    rc = seed % max;
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    seed = (((seed << 2) ^ (seed >> 2)) * 487) + rc;
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    seed = (((seed << 2) ^ (seed >> 2)) * 487) + rc;
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    spinlock_unlock(&sem_lock);
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    spinlock_unlock(&sem_lock);
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    return rc;
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    return rc;
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}
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}
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    thread_detach(THREAD);
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    thread_detach(THREAD);
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    waitq_sleep(&can_start);
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    waitq_sleep(&can_start);
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    to = random(20000);
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    to = random(20000);
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    printf("cpu%u, tid %" PRIu64 " down+ (%d)\n", CPU->id, THREAD->tid, to);
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    TPRINTF("cpu%u, tid %" PRIu64 " down+ (%d)\n", CPU->id, THREAD->tid, to);
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    rc = semaphore_down_timeout(&sem, to);
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    rc = semaphore_down_timeout(&sem, to);
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    if (SYNCH_FAILED(rc)) {
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    if (SYNCH_FAILED(rc)) {
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        printf("cpu%u, tid %" PRIu64 " down!\n", CPU->id, THREAD->tid);
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        TPRINTF("cpu%u, tid %" PRIu64 " down!\n", CPU->id, THREAD->tid);
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        return;
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        return;
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    }
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    }
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    printf("cpu%u, tid %" PRIu64 " down=\n", CPU->id, THREAD->tid);
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    TPRINTF("cpu%u, tid %" PRIu64 " down=\n", CPU->id, THREAD->tid);   
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    thread_usleep(random(30000));
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    thread_usleep(random(30000));
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    semaphore_up(&sem);
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    semaphore_up(&sem);
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    printf("cpu%u, tid %" PRIu64 " up\n", CPU->id, THREAD->tid);
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    TPRINTF("cpu%u, tid %" PRIu64 " up\n", CPU->id, THREAD->tid);
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}
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}
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char * test_semaphore2(bool quiet)
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char *test_semaphore2(void)
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{
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{
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    uint32_t i, k;
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    uint32_t i, k;
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    waitq_initialize(&can_start);
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    waitq_initialize(&can_start);
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    semaphore_initialize(&sem, 5);
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    semaphore_initialize(&sem, 5);
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    thread_t *thrd;
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    thread_t *thrd;
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    k = random(7) + 1;
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    k = random(7) + 1;
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    printf("Creating %" PRIu32 " consumers\n", k);
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    TPRINTF("Creating %" PRIu32 " consumers\n", k);
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    for (i = 0; i < k; i++) {
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    for (i = 0; i < k; i++) {
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        thrd = thread_create(consumer, NULL, TASK, 0, "consumer", false);
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        thrd = thread_create(consumer, NULL, TASK, 0, "consumer", false);
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        if (thrd)
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        if (thrd)
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            thread_ready(thrd);
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            thread_ready(thrd);
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        else
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        else
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            printf("Error creating thread\n");
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            TPRINTF("Error creating thread\n");
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    }
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    }
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    thread_usleep(20000);
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    thread_usleep(20000);
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    waitq_wakeup(&can_start, WAKEUP_ALL);
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    waitq_wakeup(&can_start, WAKEUP_ALL);
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