CommandFunctor.hpp

00001 /***************************************************************************
00002   tag: Peter Soetens  Thu Apr 22 20:40:57 CEST 2004  CommandFunction.hpp
00003 
00004                         CommandFunctor.hpp -  description
00005                            -------------------
00006     begin                : Thu April 22 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,                                    *
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00035  *                                                                         *
00036  ***************************************************************************/
00037 
00038 
00039 #ifndef ORO_COMMANDFUNCTOR_HPP
00040 #define ORO_COMMANDFUNCTOR_HPP
00041 
00042 #include "CommandInterface.hpp"
00043 #include <boost/function.hpp>
00044 
00045 namespace RTT
00046 {
00069     template< class F >
00070     class CommandFunctor
00071         : public CommandInterface
00072     {
00073         F f;
00074     public:
00075         typedef F Function;
00076 
00080         CommandFunctor(const Function& func) : f(func) {}
00081 
00082         virtual ~CommandFunctor() {}
00083 
00084         virtual void readArguments() {}
00085 
00086         virtual bool execute() { f(); return true; }
00087 
00088         virtual CommandInterface* clone() const
00089         {
00090             return new CommandFunctor<F>(f);
00091         }
00092     };
00093 
00110     template<>
00111     class CommandFunctor< boost::function< bool(void) > >
00112         : public CommandInterface
00113     {
00114         boost::function<bool(void)> f;
00115     public:
00116         typedef boost::function<bool(void)> Function;
00117 
00121         CommandFunctor(const Function& func) : f(func) {}
00122 
00123         virtual ~CommandFunctor() {}
00124 
00125         virtual void readArguments() {}
00126 
00127         virtual bool execute() { return f(); }
00128 
00129         virtual CommandInterface* clone() const
00130         {
00131             return new CommandFunctor<Function>(f);
00132         }
00133     };
00134 
00141     template<class F>
00142     CommandInterface* newCommandFunctor(const F& f )
00143     {
00144         return new CommandFunctor<F>(f);
00145     }
00146 }
00147 
00148 #endif
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