00001 /*************************************************************************** 00002 ** 00003 ** This file is part of GpCoreTools. 00004 ** 00005 ** This file may be distributed and/or modified under the terms of the 00006 ** GNU General Public License version 2 or 3 as published by the Free 00007 ** Software Foundation and appearing in the file LICENSE.GPL included 00008 ** in the packaging of this file. 00009 ** 00010 ** This file is distributed in the hope that it will be useful, but WITHOUT 00011 ** ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 00012 ** FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 00013 ** more details. 00014 ** 00015 ** You should have received a copy of the GNU General Public License 00016 ** along with this program. If not, see <http://www.gnu.org/licenses/>. 00017 ** 00018 ** See http://www.geopsy.org for more information. 00019 ** 00020 ** Created: 2011-06-29 00021 ** Authors: 00022 ** Marc Wathelet (ISTerre, Grenoble, France) 00023 ** 00024 ***************************************************************************/ 00025 00026 #ifndef MESSAGECLASSIDONLY_H 00027 #define MESSAGECLASSIDONLY_H 00028 00029 #include "MessageClassIdHeader.h" 00030 00031 namespace GpCoreTools { 00032 00033 #pragma pack(1) /* set alignment to 1 byte boundary */ 00034 00035 class GPCORETOOLS_EXPORT MessageClassIdOnly 00036 { 00037 public: 00038 inline MessageClassIdOnly(unsigned char msgClass, unsigned char msgId); 00039 00040 const MessageClassIdHeader& header() const {return _head;} 00041 const FletcherChecksum& checksum() const {return _tail;} 00042 00043 const char * buffer() const {return reinterpret_cast<const char *>(this);} 00044 private: 00045 MessageClassIdHeader _head; 00046 FletcherChecksum _tail; 00047 }; 00048 00049 inline MessageClassIdOnly::MessageClassIdOnly(unsigned char msgClass, unsigned char msgId) 00050 : _head(msgClass, msgId, 0), _tail() 00051 { 00052 _tail.add(reinterpret_cast<const char *>(_head.header()), MessageClassIdHeader::HeaderSize); 00053 } 00054 00055 #pragma pack() // restore original alignment 00056 00057 } // namespace GpCoreTools 00058 00059 #endif // MESSAGECLASSIDONLY_H
