blob: 6a41883af5651262f74f54e9068b27bfab4545fb (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
/*
Copyright (c) 2007-2011 iMatix Corporation
Copyright (c) 2007-2011 Other contributors as noted in the AUTHORS file
This file is part of 0MQ.
0MQ is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
0MQ is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __ZMQ_TCP_ENGINE_HPP_INCLUDED__
#define __ZMQ_TCP_ENGINE_HPP_INCLUDED__
#include <stddef.h>
#include "fd.hpp"
#include "i_engine.hpp"
#include "io_object.hpp"
#include "encoder.hpp"
#include "decoder.hpp"
#include "options.hpp"
namespace zmq
{
class tcp_engine_t : public io_object_t, public i_engine
{
public:
tcp_engine_t (fd_t fd_, const options_t &options_);
~tcp_engine_t ();
// i_engine interface implementation.
void plug (class io_thread_t *io_thread_, class session_t *session_);
void unplug ();
void terminate ();
void activate_in ();
void activate_out ();
// i_poll_events interface implementation.
void in_event ();
void out_event ();
private:
// Function to handle network disconnections.
void error ();
// Writes data to the socket. Returns the number of bytes actually
// written (even zero is to be considered to be a success). In case
// of error or orderly shutdown by the other peer -1 is returned.
int write (const void *data_, size_t size_);
// Reads data from the socket (up to 'size' bytes). Returns the number
// of bytes actually read (even zero is to be considered to be
// a success). In case of error or orderly shutdown by the other
// peer -1 is returned.
int read (void *data_, size_t size_);
// Underlying socket.
fd_t s;
handle_t handle;
unsigned char *inpos;
size_t insize;
decoder_t decoder;
unsigned char *outpos;
size_t outsize;
encoder_t encoder;
// The session this engine is attached to.
class session_t *session;
// Detached transient session.
class session_t *leftover_session;
options_t options;
bool plugged;
tcp_engine_t (const tcp_engine_t&);
const tcp_engine_t &operator = (const tcp_engine_t&);
};
}
#endif
|
