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19facd85 TJ |
1 | /* |
2 | Copyright (C) 2006 by Intra2net AG - Gerd v. Egidy | |
3 | ||
4 | The software in this package is distributed under the GNU General | |
5 | Public License version 2 (with a special exception described below). | |
6 | ||
7 | A copy of GNU General Public License (GPL) is included in this distribution, | |
8 | in the file COPYING.GPL. | |
9 | ||
10 | As a special exception, if other files instantiate templates or use macros | |
11 | or inline functions from this file, or you compile this file and link it | |
12 | with other works to produce a work based on this file, this file | |
13 | does not by itself cause the resulting work to be covered | |
14 | by the GNU General Public License. | |
15 | ||
16 | However the source code for this file must still be made available | |
17 | in accordance with section (3) of the GNU General Public License. | |
18 | ||
19 | This exception does not invalidate any other reasons why a work based | |
20 | on this file might be covered by the GNU General Public License. | |
21 | */ | |
7087e187 GE |
22 | #ifndef __LIBT2N_COMMAND_SERVER |
23 | #define __LIBT2N_COMMAND_SERVER | |
24 | ||
539b09c0 | 25 | #include "command.hxx" |
7087e187 GE |
26 | #include "server.hxx" |
27 | ||
28 | namespace libt2n | |
29 | { | |
30 | ||
31 | /// a server handling incoming commands | |
32 | class command_server | |
33 | { | |
34 | private: | |
35 | server& s; | |
36 | ||
37 | void handle_packet(const std::string& packet, server_connection* conn); | |
38 | ||
3b2543e7 GE |
39 | int guard_handle; |
40 | ||
539b09c0 GE |
41 | protected: |
42 | virtual command* cast_command(command* input) | |
43 | { return input; } | |
44 | ||
7087e187 | 45 | public: |
28cb45a5 | 46 | command_server(server& _s); |
56f3994d | 47 | ~command_server(); |
7087e187 | 48 | |
45a2ebc9 | 49 | void handle(long long usec_timeout=-1, long long* usec_timeout_remaining=NULL); |
28cb45a5 | 50 | |
8104c8f7 | 51 | void send_hello(unsigned int conn_id); |
c7857475 GE |
52 | |
53 | std::ostream* get_logstream(log_level_values level) | |
54 | { return s.get_logstream(level); } | |
7087e187 GE |
55 | }; |
56 | ||
539b09c0 GE |
57 | template<class T, class B> struct Derived_from { |
58 | static void constraints(T* p) { B* pb = p; } | |
59 | Derived_from() { void(*p)(T*) = constraints; } | |
60 | }; | |
61 | ||
1e1f17bf GE |
62 | /** @brief server handling group of incoming commands |
63 | ||
64 | the template must be derived from libt2n::command. | |
65 | */ | |
539b09c0 GE |
66 | template<class COMMAND_GROUP> |
67 | class group_command_server : public command_server | |
68 | { | |
69 | private: | |
70 | virtual command* cast_command(command* input) | |
71 | { return dynamic_cast<COMMAND_GROUP*>(input); } | |
7087e187 | 72 | |
539b09c0 GE |
73 | public: |
74 | group_command_server(server& _s) | |
75 | : command_server(_s) | |
76 | { Derived_from<COMMAND_GROUP,command>(); } | |
77 | }; | |
78 | ||
79 | } | |
7087e187 GE |
80 | #endif |
81 |