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
#[derive(Debug, thiserror::Error)]
pub enum Error {
#[error(transparent)]
Tiberius(#[from] tiberius::error::Error),
#[error(transparent)]
Io(#[from] std::io::Error),
}
pub trait IntoConfig {
fn into_config(self) -> tiberius::Result<tiberius::Config>;
}
impl<'a> IntoConfig for &'a str {
fn into_config(self) -> tiberius::Result<tiberius::Config> {
tiberius::Config::from_ado_string(self)
}
}
impl IntoConfig for tiberius::Config {
fn into_config(self) -> tiberius::Result<tiberius::Config> {
Ok(self)
}
}
pub struct ConnectionManager {
config: tiberius::Config,
#[cfg(feature = "with-tokio")]
modify_tcp_stream:
Box<dyn Fn(&tokio::net::TcpStream) -> tokio::io::Result<()> + Send + Sync + 'static>,
#[cfg(feature = "with-async-std")]
modify_tcp_stream: Box<
dyn Fn(&async_std::net::TcpStream) -> async_std::io::Result<()> + Send + Sync + 'static,
>,
}
impl ConnectionManager {
pub fn new(config: tiberius::Config) -> Self {
Self { config, modify_tcp_stream: Box::new(|tcp_stream| tcp_stream.set_nodelay(true)) }
}
pub fn build<I: IntoConfig>(config: I) -> Result<Self, Error> {
Ok(config.into_config().map(Self::new)?)
}
}
#[cfg(feature = "with-tokio")]
pub mod rt {
pub type Client = tiberius::Client<tokio_util::compat::Compat<tokio::net::TcpStream>>;
impl super::ConnectionManager {
pub fn with_modify_tcp_stream<F>(mut self, f: F) -> Self
where
F: Fn(&tokio::net::TcpStream) -> tokio::io::Result<()> + Send + Sync + 'static,
{
self.modify_tcp_stream = Box::new(f);
self
}
pub(crate) async fn connect_inner(&self) -> Result<Client, super::Error> {
use tokio::net::TcpStream;
use tokio_util::compat::TokioAsyncWriteCompatExt;
let tcp = TcpStream::connect(self.config.get_addr()).await?;
(self.modify_tcp_stream)(&tcp)?;
let client = match Client::connect(self.config.clone(), tcp.compat_write()).await {
Ok(client) => client,
Err(tiberius::error::Error::Routing { host, port }) => {
let mut config = self.config.clone();
config.host(&host);
config.port(port);
let tcp = TcpStream::connect(config.get_addr()).await?;
(self.modify_tcp_stream)(&tcp)?;
tiberius::Client::connect(config, tcp.compat_write()).await?
}
Err(e) => Err(e)?,
};
Ok(client)
}
}
}
#[cfg(feature = "with-async-std")]
pub mod rt {
pub type Client = tiberius::Client<async_std::net::TcpStream>;
impl super::ConnectionManager {
pub fn with_modify_tcp_stream<F>(mut self, f: F) -> Self
where
F: Fn(&async_std::net::TcpStream) -> async_std::io::Result<()> + Send + Sync + 'static,
{
self.modify_tcp_stream = Box::new(f);
self
}
pub(crate) async fn connect_inner(&self) -> Result<Client, super::Error> {
let tcp = async_std::net::TcpStream::connect(self.config.get_addr()).await?;
(self.modify_tcp_stream)(&tcp)?;
let client = match Client::connect(self.config.clone(), tcp).await {
Ok(client) => client,
Err(tiberius::error::Error::Routing { host, port }) => {
let mut config = self.config.clone();
config.host(&host);
config.port(port);
let tcp = async_std::net::TcpStream::connect(config.get_addr()).await?;
(self.modify_tcp_stream)(&tcp)?;
tiberius::Client::connect(config, tcp).await?
}
Err(e) => Err(e)?,
};
Ok(client)
}
}
}
#[async_trait::async_trait]
impl bb8::ManageConnection for ConnectionManager {
type Connection = rt::Client;
type Error = Error;
async fn connect(&self) -> Result<Self::Connection, Self::Error> {
Ok(self.connect_inner().await?)
}
async fn is_valid<'a, 'b, 'c>(&'a self, conn: &'b mut bb8::PooledConnection<'c,Self>) -> Result<(), Self::Error> {
conn.simple_query("SELECT 1").await?;
Ok(())
}
fn has_broken(&self, _conn: &mut Self::Connection) -> bool {
false
}
}