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1#include <liblockdep/mutex.h>
2#include "common.h"
3
4void main(void)
5{
6 pthread_mutex_t a, b, c, d;
7
8 pthread_mutex_init(&a, NULL);
9 pthread_mutex_init(&b, NULL);
10 pthread_mutex_init(&c, NULL);
11 pthread_mutex_init(&d, NULL);
12
13 LOCK_UNLOCK_2(a, b);
14 LOCK_UNLOCK_2(b, c);
15 LOCK_UNLOCK_2(c, d);
16 LOCK_UNLOCK_2(d, a);
17}