- virtual void add_thread(struct thread *t) = 0;
- virtual struct thread * next_thread(void) = 0;
- virtual struct thread * get_current_thread(void) = 0;
-};
+ Scheduler();
+ void add_thread(Thread *t);
+ void remove_thread(Thread *t);
+ void sleep(Thread *t);
+ void wake(Thread *t);
+ Thread * next_thread(Thread *t);
+ Thread * get_current_thread() const;
+ void print() const;
+ bool * get_enabled() { return is_enabled; };