<?php
/***************************************************************************
 *  Copyright (C) 2003-2011 Polytechnique.org                              *
 *  http://opensource.polytechnique.org/                                   *
 *                                                                         *
 *  This program is free software; you can redistribute it and/or modify   *
 *  it under the terms of the GNU General Public License as published by   *
 *  the Free Software Foundation; either version 2 of the License, or      *
 *  (at your option) any later version.                                    *
 *                                                                         *
 *  This program 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 General Public License for more details.                           *
 *                                                                         *
 *  You should have received a copy of the GNU General Public License      *
 *  along with this program; if not, write to the Free Software            *
 *  Foundation, Inc.,                                                      *
 *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA                *
 ***************************************************************************/

class PlProfiler
{
    static public function start($name, $info = "action")
    {
        global $globals;
        if (!($globals->debug & DEBUG_BT)) {
            return false;
        }
        if (!isset(PlBacktrace::$bt[$name])) {
            new PlBacktrace($name);
        }
        PlBacktrace::$bt[$name]->start($info);
        return true;
    }

    static public function step($name, $info = "action")
    {
        PlProfiler::stop($name);
        PlProfiler::start($name, $info);
    }

    static public function stop($name)
    {
        global $globals;
        if (!($globals->debug & DEBUG_BT)) {
            return false;
        }
        PlBacktrace::$bt[$name]->stop();
        return true;
    }
}

// vim:set et sw=4 sts=4 sws=4 foldmethod=marker fenc=utf-8:
?>