VariantParser.ct

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00001 // $Id: VariantParser.ct 1742 2010-11-04 14:51:56Z g0dil $
00002 //
00003 // Copyright (C) 2007
00004 // Fraunhofer (FOKUS)
00005 // Competence Center NETwork research (NET), St. Augustin, GERMANY
00006 //     Stefan Bund <g0dil@berlios.de>
00007 //
00008 // This program is free software; you can redistribute it and/or modify
00009 // it under the terms of the GNU General Public License as published by
00010 // the Free Software Foundation; either version 2 of the License, or
00011 // (at your option) any later version.
00012 //
00013 // This program is distributed in the hope that it will be useful,
00014 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00015 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00016 // GNU General Public License for more details.
00017 //
00018 // You should have received a copy of the GNU General Public License
00019 // along with this program; if not, write to the
00020 // Free Software Foundation, Inc.,
00021 // 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
00022 
00026 #include "VariantParser.ih"
00027 
00028 // Custom includes
00029 #include <algorithm>
00030 
00031 #define prefix_
00032 //-/////////////////////////////////////////////////////////////////////////////////////////////////
00033 
00034 template <class AuxPolicy, class Parsers>
00035 template <unsigned N>
00036 prefix_ void senf::VariantParser<AuxPolicy,Parsers>::init()
00037 {
00038     size_type oldSize( bytes() );
00039     typedef typename boost::mpl::at<parsers, boost::mpl::int_<N> >::type NewParser;
00040 
00041     if (oldSize < senf::init_bytes<NewParser>::value) {
00042         data_iterator j (i());
00043         std::advance(j, oldSize);
00044         std::fill(i(), j, 0u);
00045         safe_data_iterator safe_i (*this);
00046         typename AuxPolicy::WrapperPolicy safeAux (static_cast<AuxPolicy&>(*this));
00047         data().insert(j, senf::init_bytes<NewParser>::value - oldSize, 0u);
00048         safeAux.aux(N, safe_i, state());
00049         NewParser( safeAux.adjust(safe_i, state()), state() ).init();
00050     } else {
00051         data_iterator j (i());
00052         std::advance(j, senf::init_bytes<NewParser>::value);
00053         data().erase(j, boost::next(i(), oldSize));
00054         std::fill(i(), j, 0u);
00055         AuxPolicy::aux(N, i(), state());
00056         NewParser(AuxPolicy::adjust(i(), state()), state()).init();
00057     }
00058 }
00059 
00060 //-/////////////////////////////////////////////////////////////////////////////////////////////////
00061 #undef prefix_
00062 
00063 
00064 // Local Variables:
00065 // mode: c++
00066 // fill-column: 100
00067 // comment-column: 40
00068 // c-file-style: "senf"
00069 // indent-tabs-mode: nil
00070 // ispell-local-dictionary: "american"
00071 // compile-command: "scons -u test"
00072 // End:
SENF Extensible Network Framework

VariantParser.ct
