00001 /*************************************************************************** 00002 tag: Peter Soetens Thu Oct 22 11:59:07 CEST 2009 MQTemplateProtocol.hpp 00003 00004 MQTemplateProtocol.hpp - description 00005 ------------------- 00006 begin : Thu October 22 2009 00007 copyright : (C) 2009 Peter Soetens 00008 email : peter@thesourcworks.com 00009 00010 *************************************************************************** 00011 * This library is free software; you can redistribute it and/or * 00012 * modify it under the terms of the GNU General Public * 00013 * License as published by the Free Software Foundation; * 00014 * version 2 of the License. * 00015 * * 00016 * As a special exception, you may use this file as part of a free * 00017 * software library without restriction. Specifically, if other files * 00018 * instantiate templates or use macros or inline functions from this * 00019 * file, or you compile this file and link it with other files to * 00020 * produce an executable, this file does not by itself cause the * 00021 * resulting executable to be covered by the GNU General Public * 00022 * License. This exception does not however invalidate any other * 00023 * reasons why the executable file might be covered by the GNU General * 00024 * Public License. * 00025 * * 00026 * This library is distributed in the hope that it will be useful, * 00027 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00028 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * 00029 * Lesser General Public License for more details. * 00030 * * 00031 * You should have received a copy of the GNU General Public * 00032 * License along with this library; if not, write to the Free Software * 00033 * Foundation, Inc., 59 Temple Place, * 00034 * Suite 330, Boston, MA 02111-1307 USA * 00035 * * 00036 ***************************************************************************/ 00037 00038 00039 #ifndef ORO_MQ_TEMPATE_PROTOCOL_BASE_HPP 00040 #define ORO_MQ_TEMPATE_PROTOCOL_BASE_HPP 00041 00042 #include "MQLib.hpp" 00043 #include "../../types/TypeMarshaller.hpp" 00044 #include "MQChannelElement.hpp" 00045 00046 #include <boost/type_traits/has_virtual_destructor.hpp> 00047 #include <boost/static_assert.hpp> 00048 00049 namespace RTT 00050 { namespace mqueue 00051 { 00059 template<class T> 00060 class MQTemplateProtocolBase 00061 : public RTT::types::TypeMarshaller 00062 { 00063 public: 00067 typedef T UserType; 00068 00069 virtual base::ChannelElementBase::shared_ptr createStream(base::PortInterface* port, const ConnPolicy& policy, bool is_sender) const { 00070 try { 00071 base::ChannelElementBase::shared_ptr mq = new MQChannelElement<T>(port, *this, policy, is_sender); 00072 if ( !is_sender ) { 00073 // the receiver needs a buffer to store his messages in. 00074 base::ChannelElementBase::shared_ptr buf = detail::DataSourceTypeInfo<T>::getTypeInfo()->buildDataStorage(policy); 00075 mq->setOutput(buf); 00076 } 00077 return mq; 00078 } catch(std::exception& e) { 00079 log(Error) << "Failed to create MQueue Channel element: " << e.what() << endlog(); 00080 } 00081 return base::ChannelElementBase::shared_ptr(); 00082 } 00083 00084 }; 00085 } 00086 } 00087 00088 #endif