main() { pthread_t reader; pthread_mutex_init(&mutex,NULL); pthread_create(&reader,NULL,(void*)&reader_function,NULL); writer_function(); return 0; }
main() { pthread_t reader; delay.tv_sec = 2; delay.tv_nsec = 0; sem_init( &readers_turn , 0, 1); sem_init( &writers_turn , 0, 1); //使reader任务阻塞,writer任务先执行 sem_wait( &readers_turn ); pthread_create( &reader, NULL, (void *)&reader_function, NULL); writer_function(); }