Orocos Real-Time Toolkit
2.5.0
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00001 /*************************************************************************** 00002 tag: The SourceWorks Tue Sep 7 00:55:18 CEST 2010 type_discovery.hpp 00003 00004 type_discovery.hpp - description 00005 ------------------- 00006 begin : Tue September 07 2010 00007 copyright : (C) 2010 The SourceWorks 00008 email : peter@thesourceworks.com 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 #ifndef TYPE_DISCOVERY_HPP_ 00040 #define TYPE_DISCOVERY_HPP_ 00041 00042 // (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . 00043 // (C) Copyright 2009 Peter Soetens - http://www.thesourceworks.com . 00044 // Use, modification and distribution is subject to the Boost Software 00045 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at 00046 // http://www.boost.org/LICENSE_1_0.txt) 00047 00048 // See http://www.boost.org for updates, documentation, and revision history. 00049 00050 00064 #include <cassert> 00065 #include <boost/version.hpp> 00066 #include <boost/serialization/serialization.hpp> 00067 #include <boost/serialization/is_bitwise_serializable.hpp> 00068 #include <boost/serialization/vector.hpp> 00069 #include <boost/serialization/string.hpp> 00070 #include <boost/serialization/array.hpp> 00071 #include <boost/archive/detail/iserializer.hpp> 00072 #include <boost/archive/detail/oserializer.hpp> 00073 #include <boost/archive/archive_exception.hpp> 00074 #include <boost/config.hpp> 00075 #include <boost/mpl/bool.hpp> 00076 #include <boost/array.hpp> 00077 00078 #include <vector> 00079 #include <string> 00080 #include "../base/DataSourceBase.hpp" 00081 #include "../internal/PartDataSource.hpp" 00082 #include "../internal/DataSources.hpp" 00083 #include "carray.hpp" 00084 00085 namespace RTT 00086 { 00087 namespace types 00088 { 00093 class type_discovery 00094 { 00095 public: 00099 base::DataSourceBase::shared_ptr mparent; 00100 00101 typedef std::vector<base::DataSourceBase::shared_ptr> Parts; 00102 typedef std::vector<std::string> PartNames; 00106 Parts mparts; 00107 00112 Parts mcparts; 00113 00117 PartNames mnames; 00118 00119 typedef char Elem; 00123 typedef boost::mpl::bool_<true> is_loading; 00127 typedef boost::mpl::bool_<false> is_saving; 00128 00133 type_discovery(base::DataSourceBase::shared_ptr parent) : 00134 mparent(parent) 00135 { 00136 } 00137 00142 type_discovery() : 00143 mparent() 00144 { 00145 } 00146 00147 base::DataSourceBase::shared_ptr getMember(const std::string name) { 00148 PartNames::iterator it = find( mnames.begin(), mnames.end(), name); 00149 if ( it != mnames.end() && mparts.size() == mnames.size() ) 00150 return mparts.at( it - mnames.begin() ); 00151 return base::DataSourceBase::shared_ptr(); 00152 } 00153 00154 base::DataSourceBase::shared_ptr getConstMember(const std::string name) { 00155 PartNames::iterator it = find( mnames.begin(), mnames.end(), name); 00156 if ( it != mnames.end() && mcparts.size() == mnames.size() ) 00157 return mcparts.at( it - mnames.begin() ); 00158 return base::DataSourceBase::shared_ptr(); 00159 } 00160 00161 template<class T> 00162 void discover( T& t) { 00163 #if BOOST_VERSION >= 104100 00164 boost::archive::detail::load_non_pointer_type<type_discovery>::load_only::invoke(*this,t); 00165 #else 00166 boost::archive::detail::load_non_pointer_type<type_discovery,T>::load_only::invoke(*this,t); 00167 #endif 00168 } 00169 00174 unsigned int get_library_version() { return 0; } 00175 00181 void reset_object_address(const void * new_address, const void * old_address) {} 00182 00186 void delete_created_pointers() {} 00187 00193 template<class T> 00194 const boost::archive::detail::basic_pointer_iserializer * 00195 register_type(T * = NULL) {return 0;} 00196 00202 void load_object(void *x, const boost::archive::detail::basic_oserializer & bos) 00203 { 00204 assert(false); 00205 } 00206 00212 template<class T> 00213 type_discovery &operator>>(T &t) 00214 { 00215 return load_a_type(t, boost::mpl::bool_<boost::serialization::implementation_level<T>::value == boost::serialization::primitive_type>()); 00216 } 00217 00223 template<class T> 00224 type_discovery &operator&(T &t) 00225 { 00226 return this->operator>>(t); 00227 } 00228 00234 template<class T> 00235 type_discovery &load_a_type(T &t, boost::mpl::true_) 00236 { 00237 // stores the part 00238 if (mparent) { 00239 mparts.push_back(new internal::PartDataSource<T> (t, mparent)); 00240 mcparts.push_back(new internal::AliasDataSource<T>( new internal::PartDataSource<T> (t, mparent) )); 00241 } 00242 return *this; 00243 } 00244 00250 template<class T> 00251 type_discovery &load_a_type(T &t, boost::mpl::false_) 00252 { 00253 if (mparent) { 00254 mparts.push_back(new internal::PartDataSource<T> (t, mparent)); 00255 mcparts.push_back(new internal::AliasDataSource<T>( new internal::PartDataSource<T> (t, mparent) )); 00256 } 00257 return *this; 00258 } 00259 00265 template<class T> 00266 type_discovery &load_a_type(const boost::serialization::array<T> &t, boost::mpl::false_) 00267 { 00268 if (mparent) { 00269 mparts.push_back(new internal::PartDataSource< carray<T> > ( carray<T>(t), mparent) ); 00270 mcparts.push_back(new internal::AliasDataSource< carray<T> >( new internal::PartDataSource< carray<T> > ( carray<T>(t), mparent) )); 00271 } 00272 // probably not necessary: 00273 //mparts.push_back( DataSourceTypeInfo< carray<T> >::getTypeInfo()->buildPart( carray<T>(t), mparent ) ); 00274 return *this; 00275 } 00276 00282 template<class T, std::size_t N> 00283 type_discovery &load_a_type(boost::array<T,N> &t, boost::mpl::false_) 00284 { 00285 if (mparent) { 00286 mparts.push_back(new internal::PartDataSource< carray<T> > ( carray<T>(t), mparent) ); 00287 mcparts.push_back(new internal::AliasDataSource< carray<T> >( new internal::PartDataSource< carray<T> > ( carray<T>(t), mparent) )); 00288 } 00289 // probably not necessary: 00290 //mparts.push_back( DataSourceTypeInfo< carray<T> >::getTypeInfo()->buildPart( carray<T>(t), mparent ) ); 00291 return *this; 00292 } 00293 00300 template<class T> 00301 type_discovery &load_a_type(const T* &, boost::mpl::false_) 00302 { 00303 //pointers can not be serialized. 00304 //BOOST_STATIC_ASSERT( boost::mpl::false_ ); 00305 return *this; 00306 } 00307 00309 template<class T> 00310 type_discovery &load_a_type(const boost::serialization::nvp<T> & t, boost::mpl::false_) 00311 { 00312 // store name of member 00313 mnames.push_back( t.name() ); 00314 00315 // serialize the data as usual 00316 *this & t.value(); 00317 00318 return *this; 00319 } 00320 }; 00321 } 00322 } 00323 00324 #endif /* TYPE_DISCOVERY_HPP_ */