Операционные системы. Замятин А.В - 71 стр.

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71
#define NUM_THREADS 6
void *thread_function(void *arg);
int main() {
int res;
int lots_of_threads;
pthread_t a_thread[NUM_THREADS];
void *thread_result;
srand ( (insigned)time(NULL) );
for (lots_of_threads = 0; lots_of_threads < NUM_THREADS;
lots_of_threads++)
{
res = pthread_create (&(a_thread[lots_of_threads]),NULL,
thread_function, (void *)&lots_of_threads);
if (res != 0) {
perror(“Thread creation failed”);
exit(EXIT_FAILURE);
}
sleep(1);
}
printf(“Waiting for threads to finish...\n”);
for (lots_of_threads = NUM_THREADS - 1; lots_of_threads >= 0;
lots_of_threads--)
{
res = pthread_join (a_thread[lots_of_threads],&thread_result);
if (res == 0) printf(“Picked up a thread\n”);
else perror(“pthread_join failed”);
}
printf(“All done\n”);
exit(EXIT_SUCCESS);
}
void *thread_function(void *arg) {

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