Commit | Line | Data |
---|---|---|
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 | */ | |
a11e19b7 GE |
22 | #ifndef __LIBT2N_CONNECTION |
23 | #define __LIBT2N_CONNECTION | |
24 | ||
25 | #include <string> | |
a64066eb GE |
26 | #include <vector> |
27 | #include <list> | |
28 | #include <iostream> | |
29 | ||
30 | #include <boost/function.hpp> | |
a11e19b7 | 31 | |
8104c8f7 | 32 | #include <netinet/in.h> |
a7170401 | 33 | |
8104c8f7 | 34 | #include "types.hxx" |
a7170401 | 35 | |
a11e19b7 GE |
36 | namespace libt2n |
37 | { | |
38 | ||
94247295 GE |
39 | /** @brief a connection between client and server. abstact. |
40 | */ | |
a11e19b7 GE |
41 | class connection |
42 | { | |
43 | private: | |
44 | bool closed; | |
45 | ||
a64066eb GE |
46 | /// vector initialized for all callback-types, all elements in each list will be called |
47 | std::vector<std::list<boost::function<void ()> > > callbacks; | |
48 | ||
a11e19b7 GE |
49 | protected: |
50 | connection() | |
1eed3f4c | 51 | : closed(false), callbacks(__events_end) |
a64066eb | 52 | { } |
a11e19b7 GE |
53 | |
54 | std::string buffer; | |
55 | ||
8104c8f7 | 56 | typedef uint32_t packet_size_indicator; |
a11e19b7 GE |
57 | |
58 | packet_size_indicator bytes_available(); | |
59 | ||
60 | virtual void real_write(const std::string& data)=0; | |
61 | ||
a7170401 GE |
62 | virtual std::ostream* get_logstream(log_level_values level)=0; |
63 | ||
a64066eb GE |
64 | void do_callbacks(callback_event_type event); |
65 | ||
af84dfb5 GE |
66 | void reopen(void); |
67 | void remove_incomplete_packets(); | |
68 | ||
a11e19b7 | 69 | public: |
a64066eb | 70 | virtual ~connection(); |
a11e19b7 | 71 | |
94247295 | 72 | /// is this connection closed or not |
a11e19b7 GE |
73 | bool is_closed() |
74 | { return closed; } | |
75 | ||
94247295 | 76 | /// close this connection |
a64066eb | 77 | virtual void close(); |
a11e19b7 | 78 | |
94247295 GE |
79 | /** @brief look for new data and store it in the local buffer |
80 | @param usec_timeout wait until new data is found, max timeout usecs. | |
81 | -1: wait endless | |
45a2ebc9 GE |
82 | 0: return instantly |
83 | @param usec_timeout_remaining if non-NULL the function will write the | |
84 | not used time to the given target | |
94247295 GE |
85 | @retval true if new data was found (does not mean that the received data |
86 | is a complete packet though) | |
87 | */ | |
45a2ebc9 GE |
88 | virtual bool fill_buffer(long long usec_timeout=-1,long long* usec_timeout_remaining=NULL)=0; |
89 | ||
a11e19b7 | 90 | bool get_packet(std::string& data); |
94247295 | 91 | |
b2ba0928 GE |
92 | unsigned int peek_packet(std::string& data); |
93 | ||
94247295 | 94 | /// returns true if a complete data packet is in the buffer. retrieve it with get_packet(). |
a11e19b7 GE |
95 | bool packet_available() |
96 | { return bytes_available(); } | |
97 | ||
98 | void write(const std::string& data); | |
a64066eb GE |
99 | |
100 | void add_callback(callback_event_type event, const boost::function<void ()>& func); | |
101 | ||
102 | std::list<boost::function<void ()> > get_callback_list(callback_event_type event); | |
a11e19b7 GE |
103 | }; |
104 | ||
105 | } | |
106 | ||
107 | #endif |