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
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
// MessagePack for C++ example
//
// Copyright (C) 2017 KONDO Takatoshi
//
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
#include <string>
#include <sstream>
#include <iostream>
#include <boost/asio.hpp>
#include <boost/lexical_cast.hpp>
#include <msgpack.hpp>
#include <msgpack/zbuffer.hpp>
#include <zlib.h>
void print(std::string const& buf) {
for (std::string::const_iterator it = buf.begin(), end = buf.end();
it != end;
++it) {
std::cout
<< std::setw(2)
<< std::hex
<< std::setfill('0')
<< (static_cast<int>(*it) & 0xff)
<< ' ';
}
std::cout << std::dec << std::endl;
}
int main() {
boost::asio::io_service ios;
std::uint16_t const port = 12345;
int num_of_zlib_data = 2;
int idx_zlib_data = 0;
// Server
std::size_t const window_size = 11;
boost::asio::ip::tcp::acceptor ac(ios, boost::asio::ip::tcp::endpoint(boost::asio::ip::tcp::v4(), port));
boost::asio::ip::tcp::socket ss(ios);
std::function<void()> do_accept;
std::function<void()> do_async_read_some;
// zlib for decompress
z_stream strm;
auto zlib_init = [&] {
strm.zalloc = Z_NULL;
strm.zfree = Z_NULL;
strm.opaque = Z_NULL;
strm.next_in = Z_NULL;
{
int zret = inflateInit(&strm);
if (zret != Z_OK) {
std::cout << "Zlib inflateInit() error = " << zret << std::endl;
}
}
};
zlib_init();
std::vector<char> buf(4); // buf size
msgpack::unpacker unp;
do_accept = [&] {
ac.async_accept(
ss,
[&]
(boost::system::error_code const& e) {
if (e) {
std::cout << __LINE__ << ":" << e.message() << std::endl;
return;
}
do_async_read_some = [&] {
ss.async_read_some(
boost::asio::buffer(buf),
[&](boost::system::error_code const& e, std::size_t bytes_transferred) {
if (e) {
std::cout << __LINE__ << ":" << e.message() << std::endl;
return;
}
std::cout << bytes_transferred << " bytes read." << std::endl;
print(std::string(std::string(&buf[0], buf.size())));
strm.avail_in = static_cast<uInt>(bytes_transferred);
do {
strm.next_in = reinterpret_cast<unsigned char*>(&buf[0]) + (bytes_transferred - strm.avail_in);
int zret;
unp.reserve_buffer(window_size);
strm.avail_out = static_cast<uInt>(window_size);
strm.next_out = reinterpret_cast<unsigned char*>(unp.buffer());
do {
zret = inflate(&strm, Z_NO_FLUSH);
assert(zret != Z_STREAM_ERROR);
switch (zret) {
case Z_NEED_DICT:
zret = Z_DATA_ERROR;
// fall through
case Z_DATA_ERROR:
case Z_MEM_ERROR:
inflateEnd(&strm);
std::cout << "Zlib inflate() error = " << zret << std::endl;
std::exit(-1);
}
std::size_t decompressed_size = window_size - strm.avail_out;
std::cout << decompressed_size << " bytes decompressed." << std::endl;
unp.buffer_consumed(decompressed_size);
msgpack::object_handle oh;
while (unp.next(oh)) {
std::cout << oh.get() << std::endl;
}
} while (strm.avail_out == 0);
if (zret == Z_STREAM_END) {
inflateEnd(&strm);
std::cout << "Zlib decompress finished." << std::endl;
++idx_zlib_data;
if (idx_zlib_data == num_of_zlib_data) {
std::cout << "All zlib decompress finished." << std::endl;
return;
}
zlib_init();
}
} while (strm.avail_in != 0);
do_async_read_some();
}
);
};
do_async_read_some();
}
);
};
do_accept();
// Client
auto host = "localhost";
boost::asio::ip::tcp::resolver r(ios);
#if BOOST_VERSION < 106600
boost::asio::ip::tcp::resolver::query q(host, boost::lexical_cast<std::string>(port));
auto it = r.resolve(q);
boost::asio::ip::tcp::resolver::iterator end;
#else // BOOST_VERSION < 106600
auto eps = r.resolve(host, boost::lexical_cast<std::string>(port));
auto it = eps.begin();
auto end = eps.end();
#endif // BOOST_VERSION < 106600
boost::asio::ip::tcp::socket cs(ios);
boost::asio::async_connect(
cs,
it,
end,
[&]
(boost::system::error_code const& e, boost::asio::ip::tcp::resolver::iterator) {
if (e) {
std::cout << __LINE__ << ":" << e.message() << std::endl;
return;
}
std::cout << __LINE__ << ":client connected" << std::endl;
for (int i = 0; i != num_of_zlib_data; ++i) {
msgpack::zbuffer zb;
msgpack::pack(zb, std::make_tuple(i, false, "hello world", 12.3456));
zb.flush(); // finalize zbuffer (don't forget it)
print(std::string(zb.data(), zb.size()));
write(cs, boost::asio::buffer(zb.data(), zb.size()));
}
}
);
// Start
ios.run();
}
|
