86 lines
2.3 KiB
C
86 lines
2.3 KiB
C
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// Copyright (c) 2008 INRIA Sophia-Antipolis (France).
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// All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 3 of the License,
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// or (at your option) any later version.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $URL$
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// $Id$
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// SPDX-License-Identifier: LGPL-3.0+
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//
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// Author(s) : Sylvain Pion
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#ifndef CGAL_PROFILE_TIMER_H
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#define CGAL_PROFILE_TIMER_H
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// This file contains a class to help in profiling, together with macros
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// triggered by CGAL_PROFILE to enable it:
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//
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// - Profile_timer which keeps track of the time spent in its scope-block,
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// it accumulates the timings if it goes there several times.
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// Note: be careful at recursive functions...
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//
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// See also CGAL/Profile_counter.h
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//
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// TODO :
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// - detect and handle recursion nicely (currently it accumulates recursive times).
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// - parallel versions : per-thread and summing on all threads.
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// - Timer vs Real_timer ?
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#include <CGAL/config.h>
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#include <iostream>
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#include <iomanip>
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#include <string>
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#include <CGAL/Timer.h>
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#include <CGAL/disable_warnings.h>
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namespace CGAL {
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struct Profile_timer
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{
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class Local {
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Timer rt;
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Profile_timer *p;
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public:
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Local(Profile_timer* p_) : p(p_) { rt.start(); }
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~Local() { rt.stop(); p->t += rt.time(); }
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};
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Profile_timer(const std::string & ss)
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: t(0), s(ss) {}
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~Profile_timer()
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{
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std::cerr << "[CGAL::Profile_timer] "
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<< std::setw(10) << t << " " << s << std::endl;
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}
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private:
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double t;
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const std::string s;
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};
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#ifdef CGAL_PROFILE
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# define CGAL_TIME_PROFILER(NAME) \
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static CGAL::Profile_timer CGAL_profile_timer_tmp(NAME); \
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CGAL::Profile_timer::Local CGAL_local_profile_timer_tmp(&CGAL_profile_timer_tmp);
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#else
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# define CGAL_TIME_PROFILER(NAME)
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#endif
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} //namespace CGAL
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#include <CGAL/enable_warnings.h>
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#endif // CGAL_PROFILE_TIMER_H
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