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Wiselib
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wiselib.testing/algorithms/routing/greedy/greedy_message.h
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00001 /*************************************************************************** 00002 ** This file is part of the generic algorithm library Wiselib. ** 00003 ** Copyright (C) 2008,2009 by the Wisebed (www.wisebed.eu) project. ** 00004 ** ** 00005 ** The Wiselib is free software: you can redistribute it and/or modify ** 00006 ** it under the terms of the GNU Lesser General Public License as ** 00007 ** published by the Free Software Foundation, either version 3 of the ** 00008 ** License, or (at your option) any later version. ** 00009 ** ** 00010 ** The Wiselib is distributed in the hope that it will be useful, ** 00011 ** but WITHOUT ANY WARRANTY; without even the implied warranty of ** 00012 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ** 00013 ** GNU Lesser General Public License for more details. ** 00014 ** ** 00015 ** You should have received a copy of the GNU Lesser General Public ** 00016 ** License along with the Wiselib. ** 00017 ** If not, see <http://www.gnu.org/licenses/>. ** 00018 ***************************************************************************/ 00019 #ifndef __GREEDY_MSG_H__ 00020 #define __GREEDY_MSG_H__ 00021 00022 namespace wiselib 00023 { 00024 00025 template<typename OsModel_P, 00026 typename Node_P, 00027 typename Radio_P> 00028 class Greedy_Message 00029 { 00030 public: 00031 typedef OsModel_P OsModel; 00032 typedef Node_P Node; 00033 typedef Radio_P Radio; 00034 typedef typename Radio::block_data_t block_data_t; 00035 typedef typename Radio::size_t size_t; 00036 typedef typename Radio::message_id_t message_id_t; 00037 // -------------------------------------------------------------------- 00038 inline Greedy_Message(); 00039 // -------------------------------------------------------------------- 00040 inline message_id_t msg_id() 00041 { return read<OsModel, block_data_t, message_id_t>( buffer ); }; 00042 // -------------------------------------------------------------------- 00043 inline void set_msg_id( message_id_t id ) 00044 { write<OsModel, block_data_t, message_id_t>( buffer, id ); } 00045 // -------------------------------------------------------------------- 00046 inline Node node() 00047 { return read<OsModel, block_data_t, Node>( buffer + NODE_POS ); }; 00048 // -------------------------------------------------------------------- 00049 inline void set_node( Node n ) 00050 { write<OsModel, block_data_t, Node>( buffer + NODE_POS, n ); } 00051 // -------------------------------------------------------------------- 00052 inline size_t payload_size() 00053 { return read<OsModel, block_data_t, size_t>(buffer + PAYLOAD_POS); } 00054 // -------------------------------------------------------------------- 00055 inline block_data_t* payload() 00056 { return buffer + PAYLOAD_POS + sizeof(size_t); } 00057 // -------------------------------------------------------------------- 00058 inline void set_payload( size_t len, block_data_t *buf ) 00059 { 00060 write<OsModel, block_data_t, size_t>(buffer + PAYLOAD_POS, len); 00061 memcpy( buffer + PAYLOAD_POS + sizeof(size_t), buf, len); 00062 } 00063 // -------------------------------------------------------------------- 00064 inline size_t buffer_size() 00065 { return PAYLOAD_POS + sizeof(size_t) + payload_size(); } 00066 00067 00068 enum data_positions 00069 { 00070 MESSAGE_ID_POS = 0, 00071 NODE_POS = MESSAGE_ID_POS + sizeof(message_id_t), 00072 PAYLOAD_POS = NODE_POS + sizeof(Node) 00073 00074 }; 00075 private: 00076 block_data_t buffer[Radio::MAX_MESSAGE_LENGTH]; 00077 }; 00078 // ----------------------------------------------------------------------- 00079 template<typename OsModel_P, 00080 typename Node_P, 00081 typename Radio_P> 00082 Greedy_Message<OsModel_P, Node_P, Radio_P>:: 00083 Greedy_Message() 00084 { 00085 set_msg_id( 0 ); 00086 size_t len = 0; 00087 write<OsModel, block_data_t, size_t>(buffer + PAYLOAD_POS, len); 00088 } 00089 00090 } 00091 #endif
