add support for sleep sets...

[model-checker.git] / schedule.h

diff --git a/schedule.h b/schedule.h
index c99748c730a4812a303eecf2d30cfc0876a17bd5..3a54e8cfda9a55c2bcce5af72bc006bcf32a4588 100644 (file)
--- a/schedule.h
+++ b/schedule.h
@@ -1,3 +1,7 @@
+/** @file schedule.h
+ *     @brief Thread scheduler.
+ */
+
 #ifndef __SCHEDULE_H__
 #define __SCHEDULE_H__
 
@@ -6,19 +10,40 @@
 
 /* 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);
-       Thread * next_thread(void);
-       Thread * get_current_thread(void);
-       void print();
-
-       MEMALLOC
+       void sleep(Thread *t);
+       void wake(Thread *t);
+       Thread * next_thread(Thread *t);
+       Thread * get_current_thread() const;
+       void print() const;
+       enabled_type_t * get_enabled() { return is_enabled; };
+       void remove_sleep(Thread *t);
+       void add_sleep(Thread *t);
+       enabled_type_t get_enabled(Thread *t);
+       void update_sleep_set(Node *n);
+       SNAPSHOTALLOC
 private:
-       std::list<Thread *, MyAlloc< Thread * > > readyList;
+       /** The list of available Threads that are not currently running */
+       enabled_type_t * is_enabled;
+       int enabled_len;
+       int curr_thread_index;
+       void set_enabled(Thread *t, enabled_type_t enabled_status);
+
+       /** The currently-running Thread */
        Thread *current;
 };