developer.intra2net.com Git - libt2n/blob - src/container.hxx

   1 /***************************************************************************
   2  *   Copyright (C) 2006 by Gerd v. Egidy                                   *
   3  *   gve@intra2net.com                                                     *
   4  *                                                                         *
   5  *   This library is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU Lesser General Public License version   *
   7  *   2.1 as published by the Free Software Foundation.                     *
   8  *                                                                         *
   9  *   This library is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU Lesser General Public License for more details.                   *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU Lesser General Public      *
  15  *   License along with this program; if not, write to the                 *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  18  ***************************************************************************/
  19 #ifndef __LIBT2N_CONTAINER
  20 #define __LIBT2N_CONTAINER
  21
  22 #include <boost/archive/binary_oarchive.hpp>
  23 #include <boost/archive/binary_iarchive.hpp>
  24 #include <boost/archive/xml_oarchive.hpp>
  25 #include <boost/archive/xml_iarchive.hpp>
  26 #include <boost/serialization/serialization.hpp>
  27
  28 #include "command.hxx"
  29 #include "t2n_exception.hxx"
  30
  31 #include <iostream>
  32
  33 namespace libt2n
  34 {
  35
  36 /** @brief contains the result (return value as libt2n::result or an libt2n::t2n_exception) of a executed command
  37 */
  38 class result_container
  39 {
  40     private:
  41         enum result_type_t { regular, exception } result_type;
  42
  43         result *res;
  44         t2n_exception *ex;
  45
  46         friend class boost::serialization::access;
  47         template<class Archive>
  48         void serialize(Archive & ar, const unsigned int version);
  49
  50     public:
  51         result_container()
  52             : res(NULL)
  53             , ex(NULL)
  54             , result_type(regular)
  55         {
  56         }
  57
  58         result_container(result *_res)
  59             : res(_res)
  60             , ex(NULL)
  61             , result_type(regular)
  62         {
  63         }
  64
  65         result_container(t2n_exception *_ex)
  66             : res(NULL)
  67             , ex(_ex)
  68             , result_type(exception)
  69         {
  70         }
  71
  72         ~result_container();
  73
  74         void set_result(result *_res)
  75             { res=_res; ex=0; result_type=regular; }
  76
  77         void set_exception(t2n_exception *_ex)
  78             { res=0; ex=_ex; result_type=exception; }
  79
  80         result* get_result(void);
  81
  82         bool has_exception()
  83             { return (result_type==exception); }
  84         bool has_result()
  85             { return (result_type==regular); }
  86 };
  87
  88 /** @brief contains a libt2n::command
  89 */
  90 class command_container
  91 {
  92     private:
  93         command *cmd;
  94
  95         friend class boost::serialization::access;
  96         template<class Archive>
  97         void serialize(Archive & ar, const unsigned int version);
  98
  99     public:
 100         command_container()
 101             : cmd(NULL)
 102         {}
 103
 104         command_container(command *_cmd)
 105             : cmd(_cmd)
 106         {}
 107
 108         ~command_container();
 109
 110         /// return the contained command
 111         command* get_command()
 112             { return cmd; }
 113 };
 114
 115 } // namespace libt2n
 116
 117 BOOST_CLASS_TRACKING(libt2n::result_container, boost::serialization::track_never)
 118 BOOST_CLASS_TRACKING(libt2n::command_container, boost::serialization::track_never)
 119
 120 #include "container.tcc"
 121
 122 #endif
 123