+/** @brief The Scheduler class performs the mechanics of Thread execution
+ * scheduling. */
+class Scheduler {
+public:
+ Scheduler();
+ void add_thread(Thread *t);
+ void remove_thread(Thread *t);
+ void sleep(Thread *t);
+ void wake(Thread *t);
+ Thread * select_next_thread();
+ void set_current_thread(Thread *t);
+ Thread * get_current_thread() const;
+ void print() const;
+ enabled_type_t * get_enabled_array() const { return enabled; };
+ void remove_sleep(Thread *t);
+ void add_sleep(Thread *t);
+ enabled_type_t get_enabled(const Thread *t) const;
+ void update_sleep_set(Node *n);
+ bool is_enabled(const Thread *t) const;
+ bool is_enabled(thread_id_t tid) const;
+ bool is_sleep_set(const Thread *t) const;
+ bool all_threads_sleeping() const;
+ void set_scheduler_thread(thread_id_t tid);
+
+ SNAPSHOTALLOC
+private:
+ /** The list of available Threads that are not currently running */
+ enabled_type_t *enabled;
+ int enabled_len;
+ int curr_thread_index;
+ void set_enabled(Thread *t, enabled_type_t enabled_status);
+
+ /** The currently-running Thread */
+ Thread *current;
+};