/* Thread priorities. */
#define PRI_MIN 0 /* Lowest priority. */
-#define PRI_DEFAULT 29 /* Default priority. */
-#define PRI_MAX 59 /* Highest priority. */
+#define PRI_DEFAULT 31 /* Default priority. */
+#define PRI_MAX 63 /* Highest priority. */
/* A kernel thread or user process.
unsigned magic; /* Detects stack overflow. */
};
+/* If false (default), use round-robin scheduler.
+ If true, use multi-level feedback queue scheduler.
+ Controlled by kernel command-line options "-o mlfqs".
+ Note that the command line is not parsed until well after
+ thread_init() is called. */
+extern bool thread_mlfqs;
+
void thread_init (void);
void thread_start (void);
+
void thread_tick (void);
void thread_print_stats (void);
void thread_exit (void) NO_RETURN;
void thread_yield (void);
-void thread_join (tid_t);
-
-void thread_set_priority (int);
int thread_get_priority (void);
+void thread_set_priority (int);
+
+int thread_get_nice (void);
+void thread_set_nice (int);
+int thread_get_recent_cpu (void);
+int thread_get_load_avg (void);
#endif /* threads/thread.h */