Line data Source code
1 : /*
2 : Copyright (c) 2007-2016 Contributors as noted in the AUTHORS file
3 :
4 : This file is part of libzmq, the ZeroMQ core engine in C++.
5 :
6 : libzmq is free software; you can redistribute it and/or modify it under
7 : the terms of the GNU Lesser General Public License (LGPL) as published
8 : by the Free Software Foundation; either version 3 of the License, or
9 : (at your option) any later version.
10 :
11 : As a special exception, the Contributors give you permission to link
12 : this library with independent modules to produce an executable,
13 : regardless of the license terms of these independent modules, and to
14 : copy and distribute the resulting executable under terms of your choice,
15 : provided that you also meet, for each linked independent module, the
16 : terms and conditions of the license of that module. An independent
17 : module is a module which is not derived from or based on this library.
18 : If you modify this library, you must extend this exception to your
19 : version of the library.
20 :
21 : libzmq is distributed in the hope that it will be useful, but WITHOUT
22 : ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
23 : FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
24 : License for more details.
25 :
26 : You should have received a copy of the GNU Lesser General Public License
27 : along with this program. If not, see <http://www.gnu.org/licenses/>.
28 : */
29 :
30 : #ifndef __ZMQ_RAW_DECODER_HPP_INCLUDED__
31 : #define __ZMQ_RAW_DECODER_HPP_INCLUDED__
32 :
33 : #include "err.hpp"
34 : #include "msg.hpp"
35 : #include "i_decoder.hpp"
36 : #include "stdint.hpp"
37 : #include "decoder_allocators.hpp"
38 :
39 : namespace zmq
40 : {
41 :
42 : // Decoder for 0MQ v1 framing protocol. Converts data stream into messages.
43 :
44 : class raw_decoder_t : public i_decoder
45 : {
46 : public:
47 :
48 : raw_decoder_t (size_t bufsize_);
49 : virtual ~raw_decoder_t ();
50 :
51 : // i_decoder interface.
52 :
53 : virtual void get_buffer (unsigned char **data_, size_t *size_);
54 :
55 : virtual int decode (const unsigned char *data_, size_t size_,
56 : size_t &processed);
57 :
58 63 : virtual msg_t *msg () { return &in_progress; }
59 :
60 63 : virtual void resize_buffer(size_t) {}
61 :
62 : private:
63 : msg_t in_progress;
64 :
65 : shared_message_memory_allocator allocator;
66 :
67 : raw_decoder_t (const raw_decoder_t&);
68 : void operator = (const raw_decoder_t&);
69 : };
70 :
71 : }
72 :
73 : #endif
74 :
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