catch2/include/internal/catch_timer.hpp

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/*
* Created by Phil on 05/08/2013.
* Copyright 2013 Two Blue Cubes Ltd. All rights reserved.
*
* Distributed under the Boost Software License, Version 1.0. (See accompanying
* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
*/
#include "catch_timer.h"
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#include "catch_platform.h"
#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wc++11-long-long"
#endif
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#ifdef CATCH_PLATFORM_WINDOWS
# include "catch_windows_h_proxy.h"
#else
// Required for some versions of Cygwin to declare gettimeofday
// see: http://stackoverflow.com/questions/36901803/gettimeofday-not-declared-in-this-scope-cygwin
# ifdef __CYGWIN__
# define _BSD_SOURCE
# endif
#include <sys/time.h>
#endif
namespace Catch {
namespace {
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#ifdef CATCH_PLATFORM_WINDOWS
uint64_t getCurrentTicks() {
static uint64_t hz=0, hzo=0;
if (!hz) {
QueryPerformanceFrequency( reinterpret_cast<LARGE_INTEGER*>( &hz ) );
QueryPerformanceCounter( reinterpret_cast<LARGE_INTEGER*>( &hzo ) );
}
uint64_t t;
QueryPerformanceCounter( reinterpret_cast<LARGE_INTEGER*>( &t ) );
return ((t-hzo)*1000000)/hz;
}
#else
uint64_t getCurrentTicks() {
timeval t;
gettimeofday(&t,CATCH_NULL);
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return static_cast<uint64_t>( t.tv_sec ) * 1000000ull + static_cast<uint64_t>( t.tv_usec );
}
#endif
}
void Timer::start() {
m_ticks = getCurrentTicks();
}
unsigned int Timer::getElapsedMicroseconds() const {
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return static_cast<unsigned int>(getCurrentTicks() - m_ticks);
}
unsigned int Timer::getElapsedMilliseconds() const {
return static_cast<unsigned int>(getElapsedMicroseconds()/1000);
}
double Timer::getElapsedSeconds() const {
return getElapsedMicroseconds()/1000000.0;
}
} // namespace Catch
#ifdef __clang__
#pragma clang diagnostic pop
#endif