1 2 #include <time.h> 3 #include <pthread.h> 4 #include <assert.h> 5 #include <errno.h> 6 main()7int main() 8 { 9 struct timespec abstime; 10 pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; 11 pthread_cond_t cond = PTHREAD_COND_INITIALIZER; 12 13 14 15 16 abstime.tv_sec = time(NULL) + 2; 17 abstime.tv_nsec = 0; 18 19 abstime.tv_nsec += 1000000000; 20 21 assert(pthread_mutex_lock(&mutex)==0); 22 assert(pthread_cond_timedwait(&cond, &mutex, &abstime)==EINVAL); 23 assert(pthread_mutex_unlock(&mutex)==0); 24 25 return 0; 26 } 27