int (*pthread_create)(pthread_t *, const pthread_attr_t *, void *(*)(void *), void *);
int (*pthread_join)(pthread_t, void **);
void *(*dlopen)(const char *, int);
int (*pthread_create)(pthread_t *, const pthread_attr_t *, void *(*)(void *), void *);
int (*pthread_join)(pthread_t, void **);
void *(*dlopen)(const char *, int);