X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fdevices%2Ftimer.h;h=db76f6d3456345f9380dfdf880f314210cbe4b81;hb=a23e3e47eb037b5de510b9661635e3df0a5bfdd0;hp=33fdaec3ce90e45ff6d83a90831201ddfa170dcf;hpb=fd24baa6eaa3c98cece07189ed34a0943e03d520;p=pintos-anon

diff --git a/src/devices/timer.h b/src/devices/timer.h
index 33fdaec..db76f6d 100644
--- a/src/devices/timer.h
+++ b/src/devices/timer.h
@@ -1,16 +1,20 @@
-#ifndef HEADER_TIMER_H
-#define HEADER_TIMER_H 1
+#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);
 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);
+void timer_sleep (int64_t ticks);
 
-#endif /* timer.h */
+int64_t timer_ms2ticks (int64_t ms);
+int64_t timer_us2ticks (int64_t us);
+int64_t timer_ns2ticks (int64_t ns);
+
+#endif /* devices/timer.h */