1 /***************************************************************************
2 * Copyright (C) 2006 by Gerd v. Egidy *
5 * This library is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU Lesser General Public License version *
7 * 2.1 as published by the Free Software Foundation. *
9 * This library is distributed in the hope that it will be useful, *
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
12 * GNU Lesser General Public License for more details. *
14 * You should have received a copy of the GNU Lesser General Public *
15 * License along with this program; if not, write to the *
16 * Free Software Foundation, Inc., *
17 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
18 ***************************************************************************/
25 #include <boost/archive/binary_oarchive.hpp>
26 #include <boost/archive/binary_iarchive.hpp>
27 #include <boost/archive/xml_oarchive.hpp>
28 #include <boost/archive/xml_iarchive.hpp>
29 #include <boost/serialization/serialization.hpp>
31 #include <boost/bind.hpp>
33 #include "command_server.hxx"
34 #include "container.hxx"
46 command_server::command_server(server& _s)
50 s.add_callback(new_connection,bind(&command_server::send_hello, boost::ref(*this), _1));
53 void command_server::send_hello(unsigned int conn_id)
55 server_connection* sc=s.get_connection(conn_id);
57 std::ostringstream hello;
59 hello << "T2Nv" << PROTOCOL_VERSION << ';';
62 hello.write((char*)&byteordercheck,sizeof(byteordercheck));
66 sc->write(hello.str());
69 /// handle a command including deserialization and answering
70 void command_server::handle_packet(const std::string& packet, server_connection* conn)
72 OBJLOGSTREAM(s,debug,"handling packet from connection " << conn->get_id());
75 std::istringstream ifs(packet);
76 boost::archive::binary_iarchive ia(ifs);
77 command_container ccont;
84 catch(boost::archive::archive_exception &e)
86 std::ostringstream msg;
87 msg << "archive_exception while deserializing on server-side, "
88 "code " << e.code << " (" << e.what() << ")";
89 res.set_exception(new t2n_serialization_error(msg.str()));
94 if (!res.has_exception())
97 if ((ostr=s.get_logstream(fulldebug))!=NULL)
99 (*ostr) << "decoded packet data: " << std::endl;
100 boost::archive::xml_oarchive xo(*ostr);
101 xo << BOOST_SERIALIZATION_NVP(ccont);
104 command* cmd=cast_command(ccont.get_command());
110 res.set_result((*cmd)());
112 catch (t2n_exception &e)
113 { res.set_exception(e.clone()); }
119 std::ostringstream msg;
120 if (ccont.get_command()!=NULL)
121 msg << "illegal command of type " << typeid(ccont.get_command()).name() << " called";
123 msg << "NULL command called";
124 res.set_exception(new t2n_command_error(msg.str()));
128 std::ostringstream ofs;
129 boost::archive::binary_oarchive oa(ofs);
135 catch(boost::archive::archive_exception &e)
137 std::ostringstream msg;
138 msg << "archive_exception while serializing on server-side, "
139 "code " << e.code << " (" << e.what() << ")";
140 res.set_exception(new t2n_serialization_error(msg.str()));
147 if ((ostr=s.get_logstream(fulldebug))!=NULL)
149 (*ostr) << "returning result, decoded data: " << std::endl;
150 boost::archive::xml_oarchive xo(*ostr);
151 xo << BOOST_SERIALIZATION_NVP(res);
154 conn->write(ofs.str());
157 /** @brief handle incoming commands
158 @param[in,out] usec_timeout wait until new data is found, max timeout usecs.
159 -1: wait endless, 0: instant return
161 void command_server::handle(long long usec_timeout, long long* usec_timeout_remaining)
163 if (s.fill_buffer(usec_timeout,usec_timeout_remaining))
166 unsigned int conn_id;
168 while (s.get_packet(packet,conn_id))
169 handle_packet(packet,s.get_connection(conn_id));