forked from vladon/sqlproxy
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathmysql_proxy_session.cpp
More file actions
165 lines (149 loc) · 4.52 KB
/
mysql_proxy_session.cpp
File metadata and controls
165 lines (149 loc) · 4.52 KB
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
#include "stdafx.h"
#include "mysql_proxy_session.h"
#include <csignal>
#include <iostream>
namespace sql_proxy
{
mysql_proxy_session::mysql_proxy_session(boost::asio::io_service& io_service, std::shared_ptr<IProvider> provider)
:
io_service_(io_service),
downstream_socket_(io_service),
upstream_socket_(io_service),
provider_(provider)
{
}
mysql_proxy_session::socket_t& mysql_proxy_session::downstream_socket()
{
return downstream_socket_;
}
mysql_proxy_session::socket_t& mysql_proxy_session::upstream_socket()
{
return upstream_socket_;
}
void mysql_proxy_session::start(const boost::asio::ip::tcp::endpoint & upstream_endpoint)
{
auto self(shared_from_this());
upstream_socket_.async_connect(
upstream_endpoint,
[this, self](const boost::system::error_code error_code)
{
shared_from_this()->handle_upstream_connect(error_code);
});
}
void mysql_proxy_session::handle_upstream_connect(const boost::system::error_code error)
{
if (!error)
{
{
auto self(shared_from_this());
co_read(upstream_socket_, upstream_data_, [this, self](const boost::system::error_code ec, const size_t bt)
{
shared_from_this()->handle_upstream_read(ec, bt);
});
}
{
auto self(shared_from_this());
co_read(downstream_socket_, downstream_data_, [this, self](const boost::system::error_code ec, const size_t bt)
{
shared_from_this()->handle_downstream_read(ec, bt);
});
}
}
else
{
close();
}
}
void mysql_proxy_session::handle_downstream_write(const boost::system::error_code t_error_code, const size_t t_bytes_transferred)
{
if (!t_error_code)
{
{
auto self(shared_from_this());
co_read(upstream_socket_, upstream_data_, [this](const boost::system::error_code ec, const size_t bt)
{
shared_from_this()->handle_upstream_read(ec, bt);
});
}
}
else
{
close();
}
}
void mysql_proxy_session::handle_downstream_read(const boost::system::error_code t_error_code, const size_t t_bytes_transferred)
{
if (!t_error_code)
{
provider_->on_downstream_read(bytes_t(downstream_data_.data(), downstream_data_.data() + t_bytes_transferred));
{
auto self(shared_from_this());
boost::asio::async_write(
upstream_socket_,
boost::asio::buffer(downstream_data_, t_bytes_transferred),
[this, self](const boost::system::error_code error_code, const size_t bytes_transferred)
{
shared_from_this()->handle_upstream_write(error_code, bytes_transferred);
});
}
}
else
{
close();
}
}
void mysql_proxy_session::handle_upstream_write(const boost::system::error_code t_error_code, const size_t t_bytes_transferred)
{
if (!t_error_code)
{
{
auto self(shared_from_this());
co_read(downstream_socket_, downstream_data_, [this](const boost::system::error_code ec, const size_t bt)
{
shared_from_this()->handle_downstream_read(ec, bt);
});
}
}
else
{
close();
}
}
void mysql_proxy_session::handle_upstream_read(const boost::system::error_code t_error_code, const size_t t_bytes_transferred)
{
auto tm = t_error_code.message();
if (!t_error_code)
{
provider_->on_upstream_read(bytes_t(upstream_data_.data(), upstream_data_.data() + t_bytes_transferred));
{
auto self(shared_from_this());
boost::asio::async_write(
downstream_socket_,
boost::asio::buffer(upstream_data_, t_bytes_transferred),
[this, self](const boost::system::error_code error_code, const size_t bytes_transferred)
{
shared_from_this()->handle_downstream_write(error_code, bytes_transferred);
});
}
}
else
{
close();
}
}
void mysql_proxy_session::close()
{
std::lock_guard<std::mutex> lock(mutex_);
auto close_socket = [](boost::asio::ip::tcp::socket & socket)
{
if (socket.is_open())
{
boost::system::error_code ec;
socket.shutdown(boost::asio::ip::tcp::socket::shutdown_both, ec);
socket.close(ec);
}
};
close_socket(downstream_socket_);
close_socket(upstream_socket_);
}
} // namespace sql_proxy