108 lines
2.5 KiB
Rust
108 lines
2.5 KiB
Rust
use std::io;
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use err_derive::Error;
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use log::error;
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#[derive(Debug, Error)]
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pub enum Error {
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#[error(display = "IO error: {}", _0)]
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Io(#[error(source)] io::Error),
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#[error(display = "Messagepack encode error: {}", _0)]
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RMPEncode(#[error(source)] rmp_serde::encode::Error),
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#[error(display = "Messagepack decode error: {}", _0)]
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RMPDecode(#[error(source)] rmp_serde::decode::Error),
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#[error(display = "Tokio join error: {}", _0)]
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TokioJoin(#[error(source)] tokio::task::JoinError),
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#[error(display = "oneshot receive error: {}", _0)]
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OneshotRecv(#[error(source)] tokio::sync::oneshot::error::RecvError),
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#[error(display = "Handshake error: {}", _0)]
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Handshake(#[error(source)] kuska_handshake::async_std::Error),
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#[error(display = "UTF8 error: {}", _0)]
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UTF8(#[error(source)] std::string::FromUtf8Error),
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#[error(display = "Framing protocol error")]
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Framing,
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#[error(display = "{}", _0)]
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Message(String),
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#[error(display = "No handler / shutting down")]
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NoHandler,
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#[error(display = "Connection closed")]
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ConnectionClosed,
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#[error(display = "Version mismatch: {}", _0)]
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VersionMismatch(String),
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#[error(display = "Remote error {}: {}", _0, _1)]
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Remote(u8, String),
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}
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impl Error {
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pub fn code(&self) -> u8 {
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match self {
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Self::Io(_) => 100,
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Self::TokioJoin(_) => 110,
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Self::OneshotRecv(_) => 111,
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Self::RMPEncode(_) => 10,
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Self::RMPDecode(_) => 11,
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Self::UTF8(_) => 12,
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Self::Framing => 13,
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Self::NoHandler => 20,
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Self::ConnectionClosed => 21,
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Self::Handshake(_) => 30,
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Self::VersionMismatch(_) => 31,
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Self::Remote(c, _) => *c,
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Self::Message(_) => 99,
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}
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}
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}
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impl<T> From<tokio::sync::watch::error::SendError<T>> for Error {
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fn from(_e: tokio::sync::watch::error::SendError<T>) -> Error {
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Error::Message("Watch send error".into())
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}
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}
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impl<T> From<tokio::sync::mpsc::error::SendError<T>> for Error {
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fn from(_e: tokio::sync::mpsc::error::SendError<T>) -> Error {
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Error::Message("MPSC send error".into())
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}
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}
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/// Ths trait adds a `.log_err()` method on `Result<(), E>` types,
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/// which dismisses the error by logging it to stderr.
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pub trait LogError {
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fn log_err(self, msg: &'static str);
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}
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impl<E> LogError for Result<(), E>
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where
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E: Into<Error>,
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{
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fn log_err(self, msg: &'static str) {
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if let Err(e) = self {
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error!("Error: {}: {}", msg, Into::<Error>::into(e));
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};
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}
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}
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impl<E, T> LogError for Result<T, E>
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where
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T: LogError,
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E: Into<Error>,
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{
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fn log_err(self, msg: &'static str) {
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match self {
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Err(e) => error!("Error: {}: {}", msg, Into::<Error>::into(e)),
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Ok(x) => x.log_err(msg),
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}
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}
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}
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