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vnproglib/cpp/include/vn/vntime.h

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+#ifndef _VNXPLAT_TIME_H_
+#define _VNXPLAT_TIME_H_
+
+#include "int.h"
+#include "export.h"
+
+namespace vn {
+namespace xplat {
+
+struct vn_proglib_DLLEXPORT TimeStamp
+{
+public:
+	TimeStamp();
+
+private:
+	TimeStamp(int64_t sec, uint64_t usec);
+
+public:
+
+	// \brief Returns a timestamp.
+	//
+	// \return The timestamp.
+	static TimeStamp get();
+
+// HACK: Current values are made public until the TimeStamp interface
+// is fully worked out.
+//private:
+public:
+	int64_t _sec;		// Seconds.
+	uint64_t _usec;		// Microseconds.
+};
+
+/// \brief Provides simple timing capabilities.
+class vn_proglib_DLLEXPORT Stopwatch
+{
+
+public:
+	
+	/// \brief Creates a new Stopwatch and starts timing.
+	Stopwatch();
+
+	~Stopwatch();
+
+	/// \brief Resets the Stopwatch.
+	void reset();
+
+	/// \brief Gets the elapsed time in milliseconds.
+	///
+	/// \return The elapsed time in milliseconds.
+	float elapsedMs();
+
+private:
+	struct Impl;
+	Impl *_pi;
+};
+
+}
+}
+
+#endif