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// libTorrent - BitTorrent library
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// Copyright (C) 2005-2007, Jari Sundell
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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// In addition, as a special exception, the copyright holders give
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// permission to link the code of portions of this program with the
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// OpenSSL library under certain conditions as described in each
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// individual source file, and distribute linked combinations
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// You must obey the GNU General Public License in all respects for
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// all of the code used other than OpenSSL. If you modify file(s)
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// with this exception, you may extend this exception to your version
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// of the file(s), but you are not obligated to do so. If you do not
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// wish to do so, delete this exception statement from your version.
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// If you delete this exception statement from all source files in the
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// program, then also delete it here.
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// Contact: Jari Sundell <jaris@ifi.uio.no>
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// 3185 Skoppum, NORWAY
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#ifndef LIBTORRENT_OBJECT_STATIC_MAP_H
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#define LIBTORRENT_OBJECT_STATIC_MAP_H
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#include <torrent/object.h>
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struct static_map_mapping_type {
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static const size_t max_key_size = 16;
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bool is_end() const { return key[0] == '\0'; }
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static bool is_not_key_char(char c) { return c == '\0' || c == ':' || c == '[' || c == '*'; }
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const char* find_key_end(const char* pos) const { return std::find_if(pos, key + max_key_size, &is_not_key_char); }
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const char key[max_key_size];
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struct static_map_entry_type {
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torrent::Object object;
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template <typename tmpl_key_type, size_t tmpl_length>
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class static_map_type {
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typedef Object value_type;
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typedef tmpl_key_type key_type;
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typedef static_map_entry_type entry_type;
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typedef static_map_mapping_type mapping_type;
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typedef mapping_type key_list_type[tmpl_length];
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typedef entry_type value_list_type[tmpl_length];
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static const size_t size = tmpl_length;
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static const key_list_type keys;
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entry_type* values() { return m_values; }
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const entry_type* values() const { return m_values; }
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Object& operator [] (key_type key) { return m_values[key].object; }
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const Object& operator [] (key_type key) const { return m_values[key].object; }
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value_list_type m_values;
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// Helper functions/classes for parsing keys:
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struct static_map_stack_type {
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void set_key_index(uint32_t start_index, uint32_t end_index, uint32_t delim_size,
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torrent::Object::type_type type = Object::TYPE_MAP) {
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key_index = start_index;
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next_key = end_index + delim_size;
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void clear() { key_index = 0; next_key = 0; obj_type = Object::TYPE_MAP; }
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Object::type_type obj_type;
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typedef std::pair<const static_map_mapping_type*, unsigned int> static_map_key_search_result;
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// Note that the key for both functions must be null-terminated at
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const static_map_key_search_result
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find_key_match(const static_map_mapping_type* first, const static_map_mapping_type* last,
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const char* key_first, const char* key_last) LIBTORRENT_EXPORT;
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inline const static_map_key_search_result
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find_key_match(const static_map_mapping_type* first, const static_map_mapping_type* last,
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return find_key_match(first, last, key, key + strlen(key));
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src/torrent/object_static_map.h
