00001 //:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: 00002 // 00003 // This file is part of E-Cell Simulation Environment package 00004 // 00005 // Copyright (C) 1996-2002 Keio University 00006 // 00007 //:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: 00008 // 00009 // 00010 // E-Cell is free software; you can redistribute it and/or 00011 // modify it under the terms of the GNU General Public 00012 // License as published by the Free Software Foundation; either 00013 // version 2 of the License, or (at your option) any later version. 00014 // 00015 // E-Cell is distributed in the hope that it will be useful, 00016 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 00018 // See the GNU General Public License for more details. 00019 // 00020 // You should have received a copy of the GNU General Public 00021 // License along with E-Cell -- see the file COPYING. 00022 // If not, write to the Free Software Foundation, Inc., 00023 // 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00024 // 00025 //END_HEADER 00026 // 00027 // written by Koichi Takahashi <shafi@e-cell.org>, 00028 // E-Cell Project. 00029 // 00030 00031 #ifndef __DISCRETETIMESTEPPER_HPP 00032 #define __DISCRETETIMESTEPPER_HPP 00033 00034 #include "libecs.hpp" 00035 00036 #include "Stepper.hpp" 00037 00038 00039 00040 namespace libecs 00041 { 00042 00043 /** @addtogroup stepper 00044 *@{ 00045 */ 00046 00047 /** @file */ 00048 00049 00050 00051 /** 00052 DiscreteTimeStepper has a fixed step interval. 00053 00054 This stepper ignores incoming interruptions, but dispatches 00055 interruptions always when it steps. 00056 00057 Process objects in this Stepper isn't allowed to use 00058 Variable::addVelocity() method, but Variable::setValue() method only. 00059 00060 */ 00061 00062 LIBECS_DM_CLASS( DiscreteTimeStepper, Stepper ) 00063 { 00064 00065 public: 00066 00067 LIBECS_DM_OBJECT( DiscreteTimeStepper, Stepper ) 00068 { 00069 INHERIT_PROPERTIES( Stepper ); 00070 } 00071 00072 00073 DiscreteTimeStepper(); 00074 virtual ~DiscreteTimeStepper() {} 00075 00076 00077 virtual void initialize(); 00078 00079 /** 00080 This method calls fire() method of all Processes. 00081 */ 00082 00083 virtual void step(); 00084 00085 /** 00086 Do nothing. This Stepper ignores interruption. 00087 */ 00088 00089 virtual void interrupt( TimeParam ) 00090 { 00091 ; // do nothing -- ignore interruption 00092 } 00093 00094 00095 /** 00096 TimeScale of this Stepper is always zero by default. 00097 00098 This behavior may be changed in subclasses. 00099 */ 00100 00101 virtual GET_METHOD( Real, TimeScale ) 00102 { 00103 return 0.0; 00104 } 00105 00106 }; 00107 00108 00109 00110 } // namespace libecs 00111 00112 #endif /* __DISCRETETIMESTEPPER_HPP */ 00113 00114 00115 00116 /* 00117 Do not modify 00118 $Author: shafi $ 00119 $Revision: 2529 $ 00120 $Date: 2005-11-19 10:36:40 +0100 (Sat, 19 Nov 2005) $ 00121 $Locker$ 00122 */