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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 | #ifndef __LIBT2N_COMMAND_SERVER | |
20 | #define __LIBT2N_COMMAND_SERVER | |
21 | ||
539b09c0 | 22 | #include "command.hxx" |
7087e187 GE |
23 | #include "server.hxx" |
24 | ||
25 | namespace libt2n | |
26 | { | |
27 | ||
28 | /// a server handling incoming commands | |
29 | class command_server | |
30 | { | |
31 | private: | |
32 | server& s; | |
33 | ||
34 | void handle_packet(const std::string& packet, server_connection* conn); | |
35 | ||
3b2543e7 GE |
36 | int guard_handle; |
37 | ||
539b09c0 GE |
38 | protected: |
39 | virtual command* cast_command(command* input) | |
40 | { return input; } | |
41 | ||
7087e187 | 42 | public: |
28cb45a5 | 43 | command_server(server& _s); |
7087e187 | 44 | |
45a2ebc9 | 45 | void handle(long long usec_timeout=-1, long long* usec_timeout_remaining=NULL); |
28cb45a5 | 46 | |
8104c8f7 | 47 | void send_hello(unsigned int conn_id); |
c7857475 GE |
48 | |
49 | std::ostream* get_logstream(log_level_values level) | |
50 | { return s.get_logstream(level); } | |
7087e187 GE |
51 | }; |
52 | ||
539b09c0 GE |
53 | template<class T, class B> struct Derived_from { |
54 | static void constraints(T* p) { B* pb = p; } | |
55 | Derived_from() { void(*p)(T*) = constraints; } | |
56 | }; | |
57 | ||
1e1f17bf GE |
58 | /** @brief server handling group of incoming commands |
59 | ||
60 | the template must be derived from libt2n::command. | |
61 | */ | |
539b09c0 GE |
62 | template<class COMMAND_GROUP> |
63 | class group_command_server : public command_server | |
64 | { | |
65 | private: | |
66 | virtual command* cast_command(command* input) | |
67 | { return dynamic_cast<COMMAND_GROUP*>(input); } | |
7087e187 | 68 | |
539b09c0 GE |
69 | public: |
70 | group_command_server(server& _s) | |
71 | : command_server(_s) | |
72 | { Derived_from<COMMAND_GROUP,command>(); } | |
73 | }; | |
74 | ||
75 | } | |
7087e187 GE |
76 | #endif |
77 |