src/lib/util/misc/regtime.h

//
// regtime.h
//
// Copyright (C) 1996 Limit Point Systems, Inc.
//
// Author: Curtis Janssen <cljanss@limitpt.com>
// Maintainer: LPS
//
// This file is part of the SC Toolkit.
//
// The SC Toolkit is free software; you can redistribute it and/or modify
// it under the terms of the GNU Library General Public License as published by
// the Free Software Foundation; either version 2, or (at your option)
// any later version.
//
// The SC Toolkit is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public License
// along with the SC Toolkit; see the file COPYING.LIB.  If not, write to
// the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
//
// The U.S. Government is granted a limited license as per AL 91-7.
//

#ifdef __GNUC__
#pragma interface
#endif

#ifndef _util_misc_regtime_h
#define _util_misc_regtime_h

#include <iostream>
#include <string>
#include <list>
#include <scconfig.h>
#include <util/class/class.h>

namespace sc {

class TimedRegion {
  private:
    char *name_;
    TimedRegion *up_;
    TimedRegion *subregions_;
    TimedRegion *next_;
    TimedRegion *prev_;
    double cpu_time_;
    double wall_time_;
    double cpu_enter_;
    double wall_enter_;
    double flops_;
    double flops_enter_;

    TimedRegion *insert_after(const char *name);
    TimedRegion *insert_before(const char *name);
  public:
    TimedRegion(const char *name);
    ~TimedRegion();
    const char *name() const { return name_; }
    TimedRegion *findinsubregion(const char *);
    void cpu_enter(double);
    void wall_enter(double);
    void flops_enter(double);
    void cpu_exit(double);
    void wall_exit(double);
    void flops_exit(double);
    void cpu_add(double t) { cpu_time_ += t; }
    void wall_add(double t) { wall_time_ += t; }
    void flops_add(double t) { flops_ += t; }
    TimedRegion *up() const { return up_; }
    TimedRegion *subregions() const { return subregions_; }
    TimedRegion *next() const { return next_; }
    TimedRegion *prev() const { return prev_; }

    void merge(const TimedRegion* r);

    int nregion();
    void get_region_names(const char *names[]);
    void get_wall_times(double *);
    void get_cpu_times(double *);
    void get_flops(double *);
    void get_depth(int *, int depth = 0);
};

class RegionTimer: public DescribedClass {
  protected:
    int wall_time_;
    int cpu_time_;
    int flops_;

    TimedRegion *top_;
    TimedRegion *current_;
    TimedRegion *default_;
    std::list<TimedRegion*> defaults_;

  public:
    RegionTimer(const char *topname = "total",
                int cpu_time = 0, int wall_time = 1);
    RegionTimer(const Ref<KeyVal> &);
    ~RegionTimer();
    void enter(const char * = 0);
    void change(const char *newname, const char * oldname = 0);
    void exit(const char * = 0, bool do_not_throw = false);
    void set_default(const char *);
    void unset_default();
    void enter_default();
    void exit_default();
    virtual void print(std::ostream& = ExEnv::out0()) const;
    void reset();

    void merge(const Ref<RegionTimer> &r);

    void update_top() const;

    int nregion() const;
    void get_region_names(const char *names[]) const;
    void get_wall_times(double *) const;
    void get_cpu_times(double *) const;
    void get_flops(double *) const;
    void get_depth(int *) const;

    double get_wall_time() const;
    double get_cpu_time() const;
    double get_flops() const;

    void add_wall_time(const char *, double);
    void add_cpu_time(const char *, double);
    void add_flops(const char *, double);

    static RegionTimer *default_regiontimer();
    static void set_default_regiontimer(const Ref<RegionTimer> &);
};

class Timer {
    Ref<RegionTimer> timer_;
    int depth_;
    int default_depth_;
    bool default_entered_;
  public:
    Timer(const char *name);
    Timer(const std::string &name);
    Timer(const Ref<RegionTimer> &, const char *name);
    Timer(const Ref<RegionTimer> &, const std::string &name);
    Timer(const Ref<RegionTimer> &);
    Timer();
    ~Timer();
    void print(std::ostream& = ExEnv::out0()) const;
    DEPRECATED void reset(const char * = 0);

    void enter(const char *region);
    void enter(const std::string &region) { enter(region.c_str()); }

    void change(const char *region);
    void change(const std::string &region) { change(region.c_str()); }

    void exit(const char *region = 0);
    void exit(const std::string &region) { this->exit(region.c_str()); }

    void set_default(const char *region);
    void set_default(const std::string &r) { set_default(r.c_str()); }
    void unset_default();
    void enter_default();
    void exit_default();
};

}

#endif

// Local Variables:
// mode: c++
// c-file-style: "CLJ"
// End:

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