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- #include "test.h"
- #define MAX_COUNT 5
- static sem_t s;
- static void *
- thr (void * arg)
- {
- assert(sem_wait(&s) == 0);
- assert(pthread_detach(pthread_self()) == 0);
- return NULL;
- }
- int pthread_test_semaphore3(void)
- {
- int value = 0;
- int i;
- pthread_t t[MAX_COUNT+1];
- assert(sem_init(&s, PTHREAD_PROCESS_PRIVATE, 0) == 0);
- assert(sem_getvalue(&s, &value) == 0);
- assert(value == 0);
- for (i = 1; i <= MAX_COUNT; i++)
- {
- assert(pthread_create(&t[i], NULL, thr, NULL) == 0);
- do
- {
- sched_yield();
- assert(sem_getvalue(&s, &value) == 0);
- }
- while (value != -i);
- assert(-value == i);
- }
- for (i = MAX_COUNT - 1; i >= 0; i--)
- {
- assert(sem_post(&s) == 0);
- assert(sem_getvalue(&s, &value) == 0);
- assert(-value == i);
- }
- pte_osThreadSleep(1000);
- assert(sem_destroy(&s) == 0);
- return 0;
- }
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