X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?p=pintos-anon;a=blobdiff_plain;f=src%2Fdevices%2Ftimer.h;h=cd3d6bbfeb8d94046224d2676326705247f4a710;hp=ba736d2a28d6d7e23c9ce41d4da06006f2877554;hb=cc5c971c3cc498d528a2f74f4dc2f8e27a690311;hpb=6916b246f3be8c72d6e77fd98c4a1447fd2c1de7

diff --git a/src/devices/timer.h b/src/devices/timer.h
index ba736d2..cd3d6bb 100644
--- a/src/devices/timer.h
+++ b/src/devices/timer.h
@@ -1,16 +1,29 @@
 #ifndef DEVICES_TIMER_H
 #define DEVICES_TIMER_H
 
+#include <round.h>
 #include <stdint.h>
 
+/* Number of timer interrupts per second. */
 #define TIMER_FREQ 100
 
 void timer_init (void);
+void timer_calibrate (void);
+
 int64_t timer_ticks (void);
 int64_t timer_elapsed (int64_t);
 
-void timer_msleep (int64_t ms);
-void timer_usleep (int64_t us);
-void timer_nsleep (int64_t ns);
+/* Sleep and yield the CPU to other threads. */
+void timer_sleep (int64_t ticks);
+void timer_msleep (int64_t milliseconds);
+void timer_usleep (int64_t microseconds);
+void timer_nsleep (int64_t nanoseconds);
+
+/* Busy waits. */
+void timer_mdelay (int64_t milliseconds);
+void timer_udelay (int64_t microseconds);
+void timer_ndelay (int64_t nanoseconds);
+
+void timer_print_stats (void);
 
 #endif /* devices/timer.h */