51 lines
1.4 KiB
C++
51 lines
1.4 KiB
C++
/*
|
|
* Copyright (c) 2011 Erin Catto http://box2d.org
|
|
*
|
|
* This software is provided 'as-is', without any express or implied
|
|
* warranty. In no event will the authors be held liable for any damages
|
|
* arising from the use of this software.
|
|
* Permission is granted to anyone to use this software for any purpose,
|
|
* including commercial applications, and to alter it and redistribute it
|
|
* freely, subject to the following restrictions:
|
|
* 1. The origin of this software must not be misrepresented; you must not
|
|
* claim that you wrote the original software. If you use this software
|
|
* in a product, an acknowledgment in the product documentation would be
|
|
* appreciated but is not required.
|
|
* 2. Altered source versions must be plainly marked as such, and must not be
|
|
* misrepresented as being the original software.
|
|
* 3. This notice may not be removed or altered from any source distribution.
|
|
*/
|
|
|
|
#ifndef B2_TIMER_H
|
|
#define B2_TIMER_H
|
|
|
|
#include "Box2D/Common/b2Settings.h"
|
|
|
|
/// Timer for profiling. This has platform specific code and may
|
|
/// not work on every platform.
|
|
class b2Timer
|
|
{
|
|
public:
|
|
|
|
/// Constructor
|
|
b2Timer();
|
|
|
|
/// Reset the timer.
|
|
void Reset();
|
|
|
|
/// Get the time since construction or the last reset.
|
|
float32 GetMilliseconds() const;
|
|
|
|
private:
|
|
|
|
#if defined(_WIN32)
|
|
float64 m_start;
|
|
static float64 s_invFrequency;
|
|
#elif defined(__linux__) || defined (__APPLE__)
|
|
unsigned long long m_start_sec;
|
|
unsigned long long m_start_usec;
|
|
#endif
|
|
};
|
|
|
|
#endif
|