2011-12-27 21:18:07 +00:00
commit 9f98ea7e22
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+// File: crn_win32_timer.h
+// See Copyright Notice and license at the end of inc/crnlib.h
+#pragma once
+
+namespace crnlib
+{
+   typedef uint64 timer_ticks;
+
+   class timer
+   {
+   public:
+      timer();
+      timer(timer_ticks start_ticks);
+
+      void start();
+      void start(timer_ticks start_ticks);
+
+      void stop();
+
+      double get_elapsed_secs() const;
+      uint64 get_elapsed_us() const;
+
+      static void init();
+      static timer_ticks get_init_ticks();
+      static timer_ticks get_ticks();
+      static double ticks_to_secs(timer_ticks ticks);
+
+   private:
+      static uint64 g_init_ticks;
+      static uint64 g_freq;
+      static double g_inv_freq;
+
+      uint64 m_start_time;
+      uint64 m_stop_time;
+
+      bool m_started : 1;
+      bool m_stopped : 1;
+   };
+
+} // namespace crnlib