X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fthreads%2Fthread.h;h=0039560018ddc942fb2f10002ddd4d94e3045b8c;hb=53a7f5d0952a4595f252247f5ee3d017468eb57e;hp=1f17a9c8e5b033b4c88580b313fc78dc8454b552;hpb=2cfc156c39840ce7f1cda6b473de1322691a8a0b;p=pintos-anon

diff --git a/src/threads/thread.h b/src/threads/thread.h
index 1f17a9c..0039560 100644
--- a/src/threads/thread.h
+++ b/src/threads/thread.h
@@ -21,8 +21,8 @@ typedef int tid_t;
 
 /* 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.
 
@@ -101,8 +101,14 @@ struct thread
     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 option "-o mlfqs". */
+extern bool thread_mlfqs;
+
 void thread_init (void);
 void thread_start (void);
+
 void thread_tick (void);
 void thread_print_stats (void);
 
@@ -119,7 +125,12 @@ const char *thread_name (void);
 void thread_exit (void) NO_RETURN;
 void thread_yield (void);
 
-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 */