libzmq
master
ZeroMQ C++ Core Engine (LIBZMQ)
Main Page
Classes
Files
File List
File Members
v1_encoder.cpp
Go to the documentation of this file.
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
#include "
precompiled.hpp
"
31
#include "
encoder.hpp
"
32
#include "
v1_encoder.hpp
"
33
#include "
likely.hpp
"
34
#include "
wire.hpp
"
35
36
zmq::v1_encoder_t::v1_encoder_t
(
size_t
bufsize_) :
37
encoder_base_t
<
v1_encoder_t
> (bufsize_)
38
{
39
// Write 0 bytes to the batch and go to message_ready state.
40
next_step
(NULL, 0, &
v1_encoder_t::message_ready
,
true
);
41
}
42
43
zmq::v1_encoder_t::~v1_encoder_t
()
44
{
45
}
46
47
void
zmq::v1_encoder_t::size_ready
()
48
{
49
// Write message body into the buffer.
50
next_step
(
in_progress
->
data
(),
in_progress
->
size
(),
51
&
v1_encoder_t::message_ready
,
true
);
52
}
53
54
void
zmq::v1_encoder_t::message_ready
()
55
{
56
// Get the message size.
57
size_t
size
=
in_progress
->
size
();
58
59
// Account for the 'flags' byte.
60
size++;
61
62
// For messages less than 255 bytes long, write one byte of message size.
63
// For longer messages write 0xff escape character followed by 8-byte
64
// message size. In both cases 'flags' field follows.
65
if
(size < 255) {
66
tmpbuf
[0] = (
unsigned
char) size;
67
tmpbuf
[1] = (
in_progress
->
flags
() &
msg_t::more
);
68
next_step
(
tmpbuf
, 2, &
v1_encoder_t::size_ready
,
false
);
69
}
70
else
{
71
tmpbuf
[0] = 0xff;
72
put_uint64
(
tmpbuf
+ 1, size);
73
tmpbuf
[9] = (
in_progress
->
flags
() &
msg_t::more
);
74
next_step
(
tmpbuf
, 10, &
v1_encoder_t::size_ready
,
false
);
75
}
76
}
size
#define size
zmq::encoder_base_t< v1_encoder_t >::in_progress
msg_t * in_progress
Definition:
encoder.hpp:183
zmq::encoder_base_t< v1_encoder_t >::next_step
void next_step(void *write_pos_, size_t to_write_, step_t next_, bool new_msg_flag_)
Definition:
encoder.hpp:151
zmq::v1_encoder_t::message_ready
void message_ready()
Definition:
v1_encoder.cpp:54
zmq::v1_encoder_t::tmpbuf
unsigned char tmpbuf[10]
Definition:
v1_encoder.hpp:51
zmq::msg_t::size
unsigned char size
Definition:
msg.hpp:188
v1_encoder.hpp
zmq::v1_encoder_t::v1_encoder_t
v1_encoder_t(size_t bufsize_)
Definition:
v1_encoder.cpp:36
zmq::encoder_base_t
Definition:
encoder.hpp:55
precompiled.hpp
zmq::msg_t::more
Definition:
msg.hpp:78
likely.hpp
zmq::put_uint64
void put_uint64(unsigned char *buffer_, uint64_t value)
Definition:
wire.hpp:81
encoder.hpp
zmq::msg_t::data
unsigned char data[max_vsm_size]
Definition:
msg.hpp:187
zmq::v1_encoder_t
Definition:
v1_encoder.hpp:39
zmq::v1_encoder_t::~v1_encoder_t
~v1_encoder_t()
Definition:
v1_encoder.cpp:43
wire.hpp
zmq::msg_t::flags
unsigned char flags
Definition:
msg.hpp:181
zmq::v1_encoder_t::size_ready
void size_ready()
Definition:
v1_encoder.cpp:47
zeromq
libzmq
src
v1_encoder.cpp
Generated by
1.8.11