Remove cryptoppwin submodule (#754)

third_party/cryptoppwin/include/cryptopp/hrtimer.h

@@ -0,0 +1,134 @@
+// hrtimer.h - originally written and placed in the public domain by Wei Dai
+
+/// \file hrtimer.h
+/// \brief Classes for timers
+
+#ifndef CRYPTOPP_HRTIMER_H
+#define CRYPTOPP_HRTIMER_H
+
+#include "config.h"
+
+#if !defined(HIGHRES_TIMER_AVAILABLE) || (defined(CRYPTOPP_WIN32_AVAILABLE) && !defined(THREAD_TIMER_AVAILABLE))
+#include <time.h>
+#endif
+
+NAMESPACE_BEGIN(CryptoPP)
+
+#ifdef HIGHRES_TIMER_AVAILABLE
+	/// \brief TimerWord is a 64-bit word
+	typedef word64 TimerWord;
+#else
+	/// \brief TimerWord is a clock_t
+	typedef clock_t TimerWord;
+#endif
+
+/// \brief Base class for timers
+/// \sa ThreadUserTimer, Timer
+class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE TimerBase
+{
+public:
+	/// \brief Unit of measure
+	/// \details Unit selects the unit of measure as returned by functions
+	///  ElapsedTimeAsDouble() and ElapsedTime().
+	/// \sa ElapsedTimeAsDouble, ElapsedTime
+	enum Unit {
+		/// \brief Timer unit is seconds
+		/// \details All timers support seconds
+		SECONDS = 0,
+		/// \brief Timer unit is milliseconds
+		/// \details All timers support milliseconds
+		MILLISECONDS,
+		/// \brief Timer unit is microseconds
+		/// \details The timer requires hardware support microseconds
+		MICROSECONDS,
+		/// \brief Timer unit is nanoseconds
+		/// \details The timer requires hardware support nanoseconds
+		NANOSECONDS
+	};
+
+	/// \brief Construct a TimerBase
+	/// \param unit the unit of measure
+	/// \param stuckAtZero flag
+	TimerBase(Unit unit, bool stuckAtZero)
+		: m_timerUnit(unit), m_stuckAtZero(stuckAtZero), m_started(false)
+		, m_start(0), m_last(0) {}
+
+	/// \brief Retrieve the current timer value
+	/// \return the current timer value
+	virtual TimerWord GetCurrentTimerValue() =0;
+
+	/// \brief Retrieve ticks per second
+	/// \return ticks per second
+	/// \details TicksPerSecond() is not the timer resolution. It is a
+	///  conversion factor into seconds.
+	virtual TimerWord TicksPerSecond() =0;
+
+	/// \brief Start the timer
+	void StartTimer();
+
+	/// \brief Retrieve the elapsed time
+	/// \return the elapsed time as a double
+	/// \details The return value of ElapsedTimeAsDouble() depends upon
+	///  the Unit selected during construction of the timer. For example,
+	///  if <tt>Unit = SECONDS</tt> and ElapsedTimeAsDouble() returns 3,
+	///  then the timer has run for 3 seconds. If
+	///  <tt>Unit = MILLISECONDS</tt> and ElapsedTimeAsDouble() returns
+	///  3000, then the timer has run for 3 seconds.
+	/// \sa Unit, ElapsedTime
+	double ElapsedTimeAsDouble();
+
+	/// \brief Retrieve the elapsed time
+	/// \return the elapsed time as an unsigned long
+	/// \details The return value of ElapsedTime() depends upon the
+	///  Unit selected during construction of the timer. For example, if
+	///  <tt>Unit = SECONDS</tt> and ElapsedTime() returns 3, then
+	///  the timer has run for 3 seconds. If <tt>Unit = MILLISECONDS</tt>
+	///  and ElapsedTime() returns 3000, then the timer has run for 3
+	///  seconds.
+	/// \sa Unit, ElapsedTimeAsDouble
+	unsigned long ElapsedTime();
+
+private:
+	double ConvertTo(TimerWord t, Unit unit);
+
+	Unit m_timerUnit;	// HPUX workaround: m_unit is a system macro on HPUX
+	bool m_stuckAtZero, m_started;
+	TimerWord m_start, m_last;
+};
+
+/// \brief Measure CPU time spent executing instructions of this thread
+/// \details ThreadUserTimer requires support of the OS. On Unix-based it
+///  reports process time. On Windows NT or later desktops and servers it
+///  reports thread times with performance counter precision.. On Windows
+///  Phone and Windows Store it reports wall clock time with performance
+///  counter precision. On all others it reports wall clock time.
+/// \note ThreadUserTimer only works correctly on Windows NT or later
+///  desktops and servers.
+/// \sa Timer
+class ThreadUserTimer : public TimerBase
+{
+public:
+	/// \brief Construct a ThreadUserTimer
+	/// \param unit the unit of measure
+	/// \param stuckAtZero flag
+	ThreadUserTimer(Unit unit = TimerBase::SECONDS, bool stuckAtZero = false) : TimerBase(unit, stuckAtZero) {}
+	TimerWord GetCurrentTimerValue();
+	TimerWord TicksPerSecond();
+};
+
+/// \brief High resolution timer
+/// \sa ThreadUserTimer
+class CRYPTOPP_DLL Timer : public TimerBase
+{
+public:
+	/// \brief Construct a Timer
+	/// \param unit the unit of measure
+	/// \param stuckAtZero flag
+	Timer(Unit unit = TimerBase::SECONDS, bool stuckAtZero = false)	: TimerBase(unit, stuckAtZero) {}
+	TimerWord GetCurrentTimerValue();
+	TimerWord TicksPerSecond();
+};
+
+NAMESPACE_END
+
+#endif