add support for sleep sets...

[model-checker.git] / schedule.h

diff --git a/schedule.h b/schedule.h
index 801af0d839c7beb274aaadc66c719f627f2713a7..3a54e8cfda9a55c2bcce5af72bc006bcf32a4588 100644 (file)
--- a/schedule.h
+++ b/schedule.h
@@ -1,9 +1,50 @@
+/** @file schedule.h
+ *     @brief Thread scheduler.
+ */
+
 #ifndef __SCHEDULE_H__
 #define __SCHEDULE_H__
 
-#include "libthreads.h"
+#include <list>
+#include "mymemory.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 * 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:
+       /** 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);
 
-void schedule_add_thread(struct thread *t);
-int schedule_choose_next(struct thread **t);
+       /** The currently-running Thread */
+       Thread *current;
+};
 
 #endif /* __SCHEDULE_H__ */