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
|
use err_derive::Error;
use std::io;
use log::error;
#[derive(Debug, Error)]
pub enum Error {
#[error(display = "IO error: {}", _0)]
Io(#[error(source)] io::Error),
#[error(display = "Messagepack encode error: {}", _0)]
RMPEncode(#[error(source)] rmp_serde::encode::Error),
#[error(display = "Messagepack decode error: {}", _0)]
RMPDecode(#[error(source)] rmp_serde::decode::Error),
#[error(display = "Tokio join error: {}", _0)]
TokioJoin(#[error(source)] tokio::task::JoinError),
#[error(display = "oneshot receive error: {}", _0)]
OneshotRecv(#[error(source)] tokio::sync::oneshot::error::RecvError),
#[error(display = "Handshake error: {}", _0)]
Handshake(#[error(source)] kuska_handshake::async_std::Error),
#[error(display = "UTF8 error: {}", _0)]
UTF8(#[error(source)] std::string::FromUtf8Error),
#[error(display = "{}", _0)]
Message(String),
#[error(display = "No handler / shutting down")]
NoHandler,
#[error(display = "Connection closed")]
ConnectionClosed,
#[error(display = "Remote error: {}", _0)]
Remote(String),
}
impl Error {
pub fn code(&self) -> u8 {
match self {
Self::Io(_) => 100,
Self::TokioJoin(_) => 110,
Self::OneshotRecv(_) => 111,
Self::RMPEncode(_) => 10,
Self::RMPDecode(_) => 11,
Self::UTF8(_) => 12,
Self::NoHandler => 20,
Self::ConnectionClosed => 21,
Self::Handshake(_) => 30,
Self::Remote(_) => 40,
Self::Message(_) => 99,
}
}
}
impl<T> From<tokio::sync::watch::error::SendError<T>> for Error {
fn from(_e: tokio::sync::watch::error::SendError<T>) -> Error {
Error::Message("Watch send error".into())
}
}
impl<T> From<tokio::sync::mpsc::error::SendError<T>> for Error {
fn from(_e: tokio::sync::mpsc::error::SendError<T>) -> Error {
Error::Message("MPSC send error".into())
}
}
/// Ths trait adds a `.log_err()` method on `Result<(), E>` types,
/// which dismisses the error by logging it to stderr.
pub trait LogError {
fn log_err(self, msg: &'static str);
}
impl<E> LogError for Result<(), E>
where
E: Into<Error>,
{
fn log_err(self, msg: &'static str) {
if let Err(e) = self {
error!("Error: {}: {}", msg, Into::<Error>::into(e));
};
}
}
impl<E, T> LogError for Result<T, E>
where
T: LogError,
E: Into<Error>,
{
fn log_err(self, msg: &'static str) {
match self {
Err(e) => error!("Error: {}: {}", msg, Into::<Error>::into(e)),
Ok(x) => x.log_err(msg),
}
}
}
|
