Commit | Line | Data |
---|---|---|
a11e19b7 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 | #ifndef __LIBT2N_CONNECTION | |
20 | #define __LIBT2N_CONNECTION | |
21 | ||
22 | #include <string> | |
23 | ||
8104c8f7 | 24 | #include <netinet/in.h> |
a7170401 | 25 | |
8104c8f7 | 26 | #include "types.hxx" |
a7170401 | 27 | |
a11e19b7 GE |
28 | namespace libt2n |
29 | { | |
30 | ||
94247295 GE |
31 | /** @brief a connection between client and server. abstact. |
32 | */ | |
a11e19b7 GE |
33 | class connection |
34 | { | |
35 | private: | |
36 | bool closed; | |
37 | ||
38 | protected: | |
39 | connection() | |
a7170401 | 40 | { closed=false; } |
a11e19b7 GE |
41 | |
42 | std::string buffer; | |
43 | ||
8104c8f7 | 44 | typedef uint32_t packet_size_indicator; |
a11e19b7 GE |
45 | |
46 | packet_size_indicator bytes_available(); | |
47 | ||
48 | virtual void real_write(const std::string& data)=0; | |
49 | ||
a7170401 GE |
50 | virtual std::ostream* get_logstream(log_level_values level)=0; |
51 | ||
a11e19b7 | 52 | public: |
07e98688 | 53 | virtual ~connection() |
a11e19b7 GE |
54 | { close(); } |
55 | ||
94247295 | 56 | /// is this connection closed or not |
a11e19b7 GE |
57 | bool is_closed() |
58 | { return closed; } | |
59 | ||
94247295 | 60 | /// close this connection |
a11e19b7 GE |
61 | virtual void close() |
62 | { closed=true; } | |
63 | ||
94247295 GE |
64 | /** @brief look for new data and store it in the local buffer |
65 | @param usec_timeout wait until new data is found, max timeout usecs. | |
66 | -1: wait endless | |
45a2ebc9 GE |
67 | 0: return instantly |
68 | @param usec_timeout_remaining if non-NULL the function will write the | |
69 | not used time to the given target | |
94247295 GE |
70 | @retval true if new data was found (does not mean that the received data |
71 | is a complete packet though) | |
72 | */ | |
45a2ebc9 GE |
73 | virtual bool fill_buffer(long long usec_timeout=-1,long long* usec_timeout_remaining=NULL)=0; |
74 | ||
a11e19b7 | 75 | bool get_packet(std::string& data); |
94247295 | 76 | |
b2ba0928 GE |
77 | unsigned int peek_packet(std::string& data); |
78 | ||
94247295 | 79 | /// returns true if a complete data packet is in the buffer. retrieve it with get_packet(). |
a11e19b7 GE |
80 | bool packet_available() |
81 | { return bytes_available(); } | |
82 | ||
83 | void write(const std::string& data); | |
84 | }; | |
85 | ||
86 | } | |
87 | ||
88 | #endif |