Orocos Real-Time Toolkit  2.5.0
ConditionDuration.cpp
00001 /***************************************************************************
00002   tag: Peter Soetens  Tue Dec 21 22:43:07 CET 2004  ConditionDuration.cxx
00003 
00004                         ConditionDuration.cxx -  description
00005                            -------------------
00006     begin                : Tue December 21 2004
00007     copyright            : (C) 2004 Peter Soetens
00008     email                : peter.soetens@mech.kuleuven.ac.be
00009 
00010  ***************************************************************************
00011  *   This library is free software; you can redistribute it and/or         *
00012  *   modify it under the terms of the GNU General Public                   *
00013  *   License as published by the Free Software Foundation;                 *
00014  *   version 2 of the License.                                             *
00015  *                                                                         *
00016  *   As a special exception, you may use this file as part of a free       *
00017  *   software library without restriction.  Specifically, if other files   *
00018  *   instantiate templates or use macros or inline functions from this     *
00019  *   file, or you compile this file and link it with other files to        *
00020  *   produce an executable, this file does not by itself cause the         *
00021  *   resulting executable to be covered by the GNU General Public          *
00022  *   License.  This exception does not however invalidate any other        *
00023  *   reasons why the executable file might be covered by the GNU General   *
00024  *   Public License.                                                       *
00025  *                                                                         *
00026  *   This library is distributed in the hope that it will be useful,       *
00027  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
00028  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU     *
00029  *   Lesser General Public License for more details.                       *
00030  *                                                                         *
00031  *   You should have received a copy of the GNU General Public             *
00032  *   License along with this library; if not, write to the Free Software   *
00033  *   Foundation, Inc., 59 Temple Place,                                    *
00034  *   Suite 330, Boston, MA  02111-1307  USA                                *
00035  *                                                                         *
00036  ***************************************************************************/
00037 
00038 
00039 
00040 #include "ConditionDuration.hpp"
00041 
00042 namespace RTT {
00043     using namespace os;
00044     using namespace scripting;
00045     using namespace base;
00046 
00047     ConditionDuration::ConditionDuration( nsecs t, bool invert )
00048         : time( t ), hb( TimeService::Instance() ),
00049           mark( 0 ), _invert( invert )
00050     {}
00051 
00052     ConditionDuration::~ConditionDuration()
00053     {}
00054 
00055     bool ConditionDuration::evaluate()
00056     {
00057         return _invert != ( time < TimeService::ticks2nsecs( hb->ticksSince( mark ) ) );
00058     }
00059 
00060     void ConditionDuration::reset()
00061     {
00062         mark = hb->getTicks();
00063     }
00064 
00065     ConditionInterface* ConditionDuration::clone() const
00066     {
00067         return new ConditionDuration( time, _invert );
00068     }
00069 }