netapp/src/error.rs
2020-12-02 20:12:24 +01:00

59 lines
1.5 KiB
Rust

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 = "{}", _0)]
Message(String),
#[error(display = "Remote error: {}", _0)]
Remote(String),
}
impl<T> From<tokio::sync::watch::error::SendError<T>> for Error {
fn from(_e: tokio::sync::watch::error::SendError<T>) -> Error {
Error::Message(format!("Watch send error"))
}
}
impl<T> From<tokio::sync::mpsc::error::SendError<T>> for Error {
fn from(_e: tokio::sync::mpsc::error::SendError<T>) -> Error {
Error::Message(format!("MPSC send error"))
}
}
/// 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));
};
}
}