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// Copyright (c) 2008 INRIA Sophia-Antipolis (France).
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; version 2.1 of the License.
// See the file LICENSE.LGPL distributed with CGAL.
//
// Licensees holding a valid commercial license may use this file in
// accordance with the commercial license agreement provided with the software.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
//
// $URL: svn+ssh://scm.gforge.inria.fr/svn/cgal/branches/CGAL-3.5-branch/Profiling_tools/include/CGAL/Profile_timer.h $
// $Id: Profile_timer.h 47821 2009-01-26 12:47:26Z lrineau $
//
// Author(s) : Sylvain Pion
#ifndef CGAL_PROFILE_TIMER_H
#define CGAL_PROFILE_TIMER_H
// This file contains a class to help in profiling, together with macros
// triggered by CGAL_PROFILE to enable it:
//
// - Profile_timer which keeps track of the time spent in its scope-block,
// it accumulates the timings if it goes there several times.
// Note: be careful at recursive functions...
//
// See also CGAL/Profile_counter.h
//
// TODO :
// - detect and handle recursion nicely (currently it accumulates recursive times).
// - parallel versions : per-thread and summing on all threads.
// - Timer vs Real_timer ?
#include <CGAL/config.h>
#include <iostream>
#include <iomanip>
#include <string>
#include <CGAL/Timer.h>
CGAL_BEGIN_NAMESPACE
struct Profile_timer
{
class Local {
Timer rt;
Profile_timer *p;
public:
Local(Profile_timer* p_) : p(p_) { rt.start(); }
~Local() { rt.stop(); p->t += rt.time(); }
};
Profile_timer(const std::string & ss)
: t(0), s(ss) {}
~Profile_timer()
{
std::cerr << "[CGAL::Profile_timer] "
<< std::setw(10) << t << " " << s << std::endl;
}
private:
double t;
const std::string s;
};
#ifdef CGAL_PROFILE
# define CGAL_TIME_PROFILER(NAME) \
static CGAL::Profile_timer CGAL_profile_timer_tmp(NAME); \
CGAL::Profile_timer::Local CGAL_local_profile_timer_tmp(&CGAL_profile_timer_tmp);
#else
# define CGAL_TIME_PROFILER(NAME)
#endif
CGAL_END_NAMESPACE
#endif // CGAL_PROFILE_TIMER_H
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