src/nameidmapping.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include "nameidmapping.h"
  21 #include "exceptions.h"
  22 #include "util/serialize.h"
  23
  24 void NameIdMapping::serialize(std::ostream &os) const
  25 {
  26         writeU8(os, 0); // version
  27         writeU16(os, m_id_to_name.size());
  28         for (const auto &i : m_id_to_name) {
  29                 writeU16(os, i.first);
  30                 os << serializeString(i.second);
  31         }
  32 }
  33
  34 void NameIdMapping::deSerialize(std::istream &is)
  35 {
  36         int version = readU8(is);
  37         if (version != 0)
  38                 throw SerializationError("unsupported NameIdMapping version");
  39         u32 count = readU16(is);
  40         m_id_to_name.clear();
  41         m_name_to_id.clear();
  42         for (u32 i = 0; i < count; i++) {
  43                 u16 id = readU16(is);
  44                 std::string name = deSerializeString(is);
  45                 m_id_to_name[id] = name;
  46                 m_name_to_id[name] = id;
  47         }
  48 }