/usr/include/liblas/detail/timer.hpp is in liblas-dev 1.8.1-3+b1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* $Id$
*
* Project: libLAS - http://liblas.org - A BSD library for LAS format data.
* Purpose: A simple timing class for performance tuning
* Author: Mateusz Loskot, mateusz@loskot.net
*
******************************************************************************
* Copyright (c) 2008, Mateusz Loskot
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following
* conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided
* with the distribution.
* * Neither the name of the Martin Isenburg or Iowa Department
* of Natural Resources nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
****************************************************************************/
#ifndef LIBLAS_DETAIL_TIMER_HPP_INCLUDED
#define LIBLAS_DETAIL_TIMER_HPP_INCLUDED
#ifdef WIN32
#include <windows.h>
#else
#include <sys/time.h> // gettimeofday
#endif
namespace liblas { namespace detail {
class Timer
{
public:
Timer()
{
#ifdef WIN32
LARGE_INTEGER rfreq = { 0 };
QueryPerformanceFrequency(&rfreq);
m_freq = rfreq.LowPart / double(1000);
#endif
}
void start()
{
#ifdef WIN32
QueryPerformanceCounter(&m_start);
#else
gettimeofday(&m_start, 0);
#endif
}
double stop()
{
#ifdef WIN32
QueryPerformanceCounter(&m_stop);
return (m_stop.LowPart - m_start.LowPart) / m_freq;
#else
gettimeofday(&m_stop, 0);
return (m_stop.tv_sec - m_start.tv_sec) * double(1000)
+ (m_stop.tv_usec - m_start.tv_usec) / double(1000);
#endif
}
private:
#ifdef WIN32
double m_freq;
LARGE_INTEGER m_start;
LARGE_INTEGER m_stop;
#else
timeval m_start;
timeval m_stop;
#endif
};
}} // namespace liblas::detail
#endif // LIBLAS_DETAIL_TIMER_HPP_INCLUDED
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