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 ***************************************************************************/
23 #include <boost/archive/binary_oarchive.hpp>
24 #include <boost/archive/binary_iarchive.hpp>
25 #include <boost/archive/xml_oarchive.hpp>
26 #include <boost/archive/xml_iarchive.hpp>
27 #include <boost/serialization/serialization.hpp>
29 #include <boost/bind.hpp>
31 #include "command_client.hxx"
42 command_client::command_client(client_connection& _c, long long _command_timeout_usec, long long _hello_timeout_usec)
45 command_timeout_usec=_command_timeout_usec;
46 hello_timeout_usec=_hello_timeout_usec;
49 c.add_callback(new_connection,bind(&command_client::read_hello, boost::ref(*this)));
54 std::string command_client::read_packet(const long long &usec_timeout)
57 bool got_packet=false;
58 long long my_timeout=usec_timeout;
59 while(!(got_packet=c.get_packet(resultpacket)) && my_timeout > 0 && !c.is_closed())
60 c.fill_buffer(my_timeout,&my_timeout);
63 throw t2n_transfer_error("timeout exceeded");
68 void command_client::read_hello()
71 bool got_packet=false;
72 long long my_timeout=hello_timeout_usec;
73 while(!(got_packet=c.get_packet(resultpacket)) && my_timeout > 0 && !c.is_closed())
75 c.fill_buffer(my_timeout,&my_timeout);
77 c.peek_packet(resultpacket);
78 check_hello(resultpacket); // will throw before timeout if wrong data received
82 throw t2n_transfer_error("timeout exceeded");
84 if (!check_hello(resultpacket))
85 throw t2n_version_mismatch("illegal hello received (incomplete): "+resultpacket);
88 bool command_client::check_hello(const string& hellostr)
90 istringstream hello(hellostr);
94 if (hello.read(&chk,1))
97 throw t2n_version_mismatch("illegal hello received (T2N)");
102 if (hello.read(&chk,1))
105 throw t2n_version_mismatch("illegal hello received (T2N)");
110 if (hello.read(&chk,1))
113 throw t2n_version_mismatch("illegal hello received (T2N)");
118 if (hello.read(&chk,1))
121 throw t2n_version_mismatch("illegal hello received (T2N)");
127 if (hello >> prot_version)
129 if (prot_version != PROTOCOL_VERSION)
130 throw t2n_version_mismatch("not compatible with the server protocol version");
135 if (hello.read(&chk,1))
138 throw t2n_version_mismatch("illegal hello received (1. ;)");
144 if (hello.read((char*)&hbo,sizeof(hbo)))
147 throw t2n_version_mismatch("host byte order not matching");
152 if (hello.read(&chk,1))
155 throw t2n_version_mismatch("illegal hello received (2. ;)");
163 void command_client::send_command(command* cmd, result_container &res)
166 command_container cc(cmd);
167 boost::archive::binary_oarchive oa(ofs);
173 catch(boost::archive::archive_exception &e)
176 msg << "archive_exception while serializing on client-side, code " << e.code << " (" << e.what() << ")";
177 throw t2n_serialization_error(msg.str());
183 if ((ostr=c.get_logstream(fulldebug))!=NULL)
185 (*ostr) << "sending command, decoded data: " << std::endl;
186 boost::archive::xml_oarchive xo(*ostr);
187 xo << BOOST_SERIALIZATION_NVP(cc);
192 istringstream ifs(read_packet(command_timeout_usec));
193 boost::archive::binary_iarchive ia(ifs);
199 catch(boost::archive::archive_exception &e)
202 msg << "archive_exception while deserializing on client-side, code " << e.code << " (" << e.what() << ")";
203 throw t2n_serialization_error(msg.str());
208 if ((ostr=c.get_logstream(fulldebug))!=NULL)
210 (*ostr) << "received result, decoded data: " << std::endl;
211 boost::archive::xml_oarchive xo(*ostr);
212 xo << BOOST_SERIALIZATION_NVP(res);