From 490d36e65ac24e34e3021c2a0947384aee138c88 Mon Sep 17 00:00:00 2001
From: Malf Furious <m@lfurio.us>
Date: Wed, 13 Apr 2016 21:05:14 -0400
Subject: Root commit for new Compass repository

This is the Alpha version of ComPASS, originally developed sometime in
2014.
---
 cryptopp562/hrtimer.h | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 cryptopp562/hrtimer.h

(limited to 'cryptopp562/hrtimer.h')

diff --git a/cryptopp562/hrtimer.h b/cryptopp562/hrtimer.h
new file mode 100644
index 0000000..858dbd2
--- /dev/null
+++ b/cryptopp562/hrtimer.h
@@ -0,0 +1,61 @@
+#ifndef CRYPTOPP_HRTIMER_H
+#define CRYPTOPP_HRTIMER_H
+
+#include "config.h"
+#ifndef HIGHRES_TIMER_AVAILABLE
+#include <time.h>
+#endif
+
+NAMESPACE_BEGIN(CryptoPP)
+
+#ifdef HIGHRES_TIMER_AVAILABLE
+	typedef word64 TimerWord;
+#else
+	typedef clock_t TimerWord;
+#endif
+
+//! _
+class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE TimerBase
+{
+public:
+	enum Unit {SECONDS = 0, MILLISECONDS, MICROSECONDS, NANOSECONDS};
+	TimerBase(Unit unit, bool stuckAtZero)	: m_timerUnit(unit), m_stuckAtZero(stuckAtZero), m_started(false) {}
+
+	virtual TimerWord GetCurrentTimerValue() =0;	// GetCurrentTime is a macro in MSVC 6.0
+	virtual TimerWord TicksPerSecond() =0;	// this is not the resolution, just a conversion factor into seconds
+
+	void StartTimer();
+	double 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;
+};
+
+//! measure CPU time spent executing instructions of this thread (if supported by OS)
+/*! /note This only works correctly on Windows NT or later. On Unix it reports process time, and others wall clock time.
+*/
+class ThreadUserTimer : public TimerBase
+{
+public:
+	ThreadUserTimer(Unit unit = TimerBase::SECONDS, bool stuckAtZero = false)	: TimerBase(unit, stuckAtZero) {}
+	TimerWord GetCurrentTimerValue();
+	TimerWord TicksPerSecond();
+};
+
+//! high resolution timer
+class CRYPTOPP_DLL Timer : public TimerBase
+{
+public:
+	Timer(Unit unit = TimerBase::SECONDS, bool stuckAtZero = false)	: TimerBase(unit, stuckAtZero) {}
+	TimerWord GetCurrentTimerValue();
+	TimerWord TicksPerSecond();
+};
+
+NAMESPACE_END
+
+#endif
-- 
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