Initial Pintos

1 files changed, 23 insertions, 0 deletions

diff --git a/src/devices/timer.h b/src/devices/timer.h
new file mode 100644
index 0000000..45a3f72
--- /dev/null
+++ b/src/devices/timer.h
@@ -0,0 +1,23 @@
+#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_sleep (int64_t ticks);
+void timer_msleep (int64_t milliseconds);
+void timer_usleep (int64_t microseconds);
+void timer_nsleep (int64_t nanoseconds);
+
+void timer_print_stats (void);
+
+#endif /* devices/timer.h */