00001 // $Id: ethercat_datastruct.h,v 1.5 2006/02/20 15:57:33 kgad Exp $ 00002 //=========================================================================== 00003 // This file is part of "EtherCAT Master Library". 00004 // Copyright (C) 2005 FMTC vzw, Diamant Building, A. Reyerslaan 80, 00005 // B-1030 Brussels, Belgium. 00006 // 00007 // EtherCAT Master Library is free software; you can redistribute it 00008 // and/or modify it under the terms of the GNU General Public License 00009 // as published by the Free Software Foundation; either version 2 or 00010 // (at your option) any later version. 00011 // 00012 // EtherCAT Master Code is distributed in the hope that it will be 00013 // useful, but WITHOUT ANY WARRANTY; without even the implied 00014 // warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 00015 // PURPOSE. See the GNU General Public License for more details. 00016 // 00017 // You should have received a copy of the GNU General Public License 00018 // along with the EtherCAT Master Library; if not, write to the Free 00019 // Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 00020 // 02111-1307 USA. 00021 // 00022 // EtherCAT, the EtherCAT trade name and logo are the intellectual 00023 // property of, and protected by Beckhoff. You can use "EtherCAT 00024 // Master Library" for creating and/or selling or otherwise 00025 // distributing an EtherCAT network master under the terms of the 00026 // EtherCAT Master License. 00027 // 00028 // You should have received a copy of the EtherCAT Master License 00029 // along with the EtherCAT Master Library; if not, write to Beckhoff 00030 // Automation GmbH, Eiserstrasse 5, D-33415 Verl, Germany. 00031 //=========================================================================== 00032 00033 #ifndef __ethercat_ds_h 00034 #define __ethercat_ds_h 00035 00037 00041 class EC_DataStruct 00042 { 00043 public: 00045 00047 EC_DataStruct(size_t a_data_length) : 00048 m_data_length(a_data_length) 00049 { 00050 } 00051 00053 virtual ~EC_DataStruct() 00054 { 00055 } 00056 00057 // default copy constructor will do... 00058 00060 00062 size_t length() const 00063 { 00064 return m_data_length; 00065 } 00066 00068 00071 virtual unsigned char * dump(unsigned char * a_buffer) const = 0; 00072 00073 protected: 00075 size_t m_data_length; 00076 }; 00077 00078 #endif // __ethercat_ds_h