X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=schedule.h;h=8e5554aec049ceee46f7bc1e4bf4cc9aa17b7c9f;hb=HEAD;hp=555cbc4ad027896337a0910969089103d875956f;hpb=be86dd6ef8bd6194f13b0babaa03fd45d39ff767;p=c11tester.git diff --git a/schedule.h b/schedule.h index 555cbc4a..8e5554ae 100644 --- a/schedule.h +++ b/schedule.h @@ -1,21 +1,59 @@ +/** @file schedule.h + * @brief Thread scheduler. + */ + #ifndef __SCHEDULE_H__ #define __SCHEDULE_H__ -#include +#include "mymemory.h" +#include "modeltypes.h" +#include "classlist.h" + +typedef enum enabled_type { + THREAD_DISABLED, + THREAD_ENABLED, + THREAD_SLEEP_SET +} enabled_type_t; -/* Forward declaration */ -class Thread; +void enabled_type_to_string(enabled_type_t e, char *str); +/** @brief The Scheduler class performs the mechanics of Thread execution + * scheduling. */ class Scheduler { public: + Scheduler(); + void register_engine(ModelExecution *execution); + void add_thread(Thread *t); void remove_thread(Thread *t); - Thread * next_thread(void); - Thread * get_current_thread(void); - void print(); + 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; + bool is_enabled(const Thread *t) const; + bool is_enabled(thread_id_t tid) const; + bool is_sleep_set(const Thread *t) const; + bool is_sleep_set(thread_id_t tid) const; + bool all_threads_sleeping() const; + void set_scheduler_thread(thread_id_t tid); + + SNAPSHOTALLOC private: - std::list readyList; + ModelExecution *execution; + /** 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; }; -#endif /* __SCHEDULE_H__ */ +#endif /* __SCHEDULE_H__ */