X-Git-Url: http://plrg.eecs.uci.edu/git/?p=cdsspec-compiler.git;a=blobdiff_plain;f=schedule.h;h=6ae2d2b53eeb354d522d9aac187c38cbdd4226b7;hp=ac69fa1163bfdfb3d8aff5a1f4ad249cdecb54e0;hb=30999f20b8426081e676adfc76d1c4af7b941e8e;hpb=01237c41090e450db348ef0045a3d3cfd23cd041 diff --git a/schedule.h b/schedule.h index ac69fa1..6ae2d2b 100644 --- a/schedule.h +++ b/schedule.h @@ -1,9 +1,57 @@ +/** @file schedule.h + * @brief Thread scheduler. + */ + #ifndef __SCHEDULE_H__ #define __SCHEDULE_H__ -#include "libthreads.h" +#include "mymemory.h" +#include "modeltypes.h" + +/* Forward declaration */ +class Thread; +class Node; + +typedef enum enabled_type { + THREAD_DISABLED, + THREAD_ENABLED, + THREAD_SLEEP_SET +} enabled_type_t; + +/** @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; + 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); -void schedule_add_thread(struct thread *t); -struct thread *schedule_choose_next(void); + /** The currently-running Thread */ + Thread *current; +}; #endif /* __SCHEDULE_H__ */