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7087e187 GE |
1 | /*************************************************************************** |
2 | * Copyright (C) 2006 by Gerd v. Egidy * | |
3 | * gve@intra2net.com * | |
4 | * * | |
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. * | |
8 | * * | |
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. * | |
13 | * * | |
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 | ***************************************************************************/ | |
19 | ||
20 | #include <string> | |
21 | #include <sstream> | |
22 | #include <stdexcept> | |
23 | ||
24 | #include <boost/archive/binary_oarchive.hpp> | |
25 | #include <boost/archive/binary_iarchive.hpp> | |
26 | #include <boost/archive/xml_oarchive.hpp> | |
27 | #include <boost/archive/xml_iarchive.hpp> | |
28 | #include <boost/serialization/serialization.hpp> | |
29 | #include <boost/serialization/export.hpp> | |
30 | ||
31 | #include "command_server.hxx" | |
32 | #include "container.hxx" | |
33 | ||
34 | using namespace std; | |
35 | ||
36 | namespace libt2n | |
37 | { | |
38 | ||
39 | /// handle a command including deserialization and answering | |
40 | void command_server::handle_packet(const std::string& packet, server_connection* conn) | |
41 | { | |
42 | // deserialize packet | |
43 | istringstream ifs(packet); | |
44 | boost::archive::binary_iarchive ia(ifs); | |
45 | command_container ccont; | |
46 | ||
47 | // TODO: catch | |
48 | ia >> ccont; | |
49 | ||
50 | // TODO: cast to command subclass (template) | |
51 | command *cmd=ccont.get_command(); | |
52 | ||
53 | result_container res; | |
54 | ||
55 | if (cmd) | |
56 | { | |
57 | try | |
58 | { | |
59 | res.set_result((*cmd)()); | |
60 | } | |
61 | catch (t2n_exception &e) | |
62 | { res.set_exception(e.clone()); } | |
63 | catch (...) | |
64 | { throw; } | |
65 | } | |
66 | else | |
67 | throw logic_error("uninitialized command called"); | |
68 | ||
69 | ostringstream ofs; | |
70 | boost::archive::binary_oarchive oa(ofs); | |
71 | ||
72 | // TODO: catch | |
73 | oa << res; | |
74 | ||
75 | conn->write(ofs.str()); | |
76 | } | |
77 | ||
78 | /** @brief handle incoming commands | |
79 | @param usec_timeout wait until new data is found, max timeout usecs. | |
80 | -1: wait endless, 0: no timeout | |
81 | */ | |
82 | void command_server::handle(long long usec_timeout) | |
83 | { | |
84 | if (s.fill_buffer(usec_timeout)) | |
85 | { | |
86 | string packet; | |
87 | unsigned int conn_id; | |
88 | ||
89 | while (s.get_packet(packet,conn_id)) | |
90 | handle_packet(packet,s.get_connection(conn_id)); | |
91 | } | |
92 | s.cleanup(); | |
93 | } | |
94 | ||
95 | } |