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git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@501 fdac6126-5c0c-442c-9429-916003d36597
This commit is contained in:
Jan Möbius
2012-01-16 10:40:50 +00:00
parent 1ced4dfb00
commit a6277afc57
3 changed files with 82 additions and 160 deletions
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84
src/OpenMesh/Tools/Utils/Timer.cc
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@@ -63,13 +63,87 @@ namespace Utils {
using namespace std;
// -------------------------------------------------------------- TimerImpl ----
// just a base class for the implementation
class TimerImpl
{
protected:
public:
TimerImpl() { ; }
virtual ~TimerImpl() { ; }
virtual void reset(void) = 0;
virtual void start(void) = 0;
virtual void stop(void) = 0;
virtual void cont(void) = 0;
virtual double seconds(void) const = 0;
};
// compiler and os dependent implementation
// ------------------------------------------------------------- windows 32 ----
#if defined(WIN32) && (defined(_MSC_VER) || defined(__INTEL_COMPILER))
#ifndef DOXY_IGNORE_THIS
#include <windows.h>
#endif
class TimerImplWin32 : public TimerImpl
{
protected:
LARGE_INTEGER freq_;
LARGE_INTEGER count_;
LARGE_INTEGER start_;
public:
TimerImplWin32(void);
~TimerImplWin32(void) { ; }
virtual void reset(void);
virtual void start(void);
virtual void stop(void);
virtual void cont(void);
virtual double seconds(void) const;
};
TimerImplWin32::TimerImplWin32(void)
{
if (QueryPerformanceFrequency(&freq_)==FALSE)
throw std::runtime_error("Performance counter of of stock!");
reset();
}
void TimerImplWin32::reset(void)
{
memset(&count_,0,sizeof(count_));
memset(&start_,0,sizeof(count_));
}
void TimerImplWin32::start(void)
{
reset();
QueryPerformanceCounter(&start_);
}
void TimerImplWin32::stop(void)
{
LARGE_INTEGER stop_;
QueryPerformanceCounter(&stop_);
count_.QuadPart += stop_.QuadPart - start_.QuadPart;
}
void TimerImplWin32::cont(void)
{
QueryPerformanceCounter(&start_);
}
double TimerImplWin32::seconds(void) const
{
return (double)count_.QuadPart/(double)freq_.QuadPart;
}
// ------------------------------------------------------------- posix time ----
#if defined(__GNUC__) && defined(__POSIX__)
#elif defined(__GNUC__) && defined(__POSIX__)
#ifndef DOXY_IGNORE_THIS
# include <time.h>
@@ -155,7 +229,7 @@ static const unsigned long clockticks = CLOCKS_PER_SEC;
class TimerImplStd : public TimerImpl
{
public:
TimerImplStd() : freq_(clockticks),count_(0),start_(0) { reset(); }
TimerImplStd() : freq_(clockticks) { reset(); }
~TimerImplStd() { ; }
virtual void reset(void) { count_ = 0; }
@@ -180,9 +254,12 @@ void TimerImplStd::stop(void)
// ----------------------------------------------------------------- Timer ----
#if ! (defined(WIN32) && (defined(_MSC_VER) || defined(__INTEL_COMPILER)))
Timer::Timer(void)
{
#if defined(__GNUC__) && defined(__POSIX__)
#if defined(WIN32) && defined(_MSC_VER)
impl_ = new TimerImplWin32;
#elif defined(__GNUC__) && defined(__POSIX__)
// CLOCK_REALTIME
// CLOCK_MONOTONIC - ?
// CLOCK_REALTIME_HR - RTlinux
@@ -199,6 +276,7 @@ Timer::Timer(void)
#endif
state_ = Stopped;
}
#endif
Timer::~Timer(void)
{