Files
krata/crates/xen/xenstore/src/error.rs
2024-03-07 18:12:47 +00:00

54 lines
1.7 KiB
Rust

use std::ffi::{FromVecWithNulError, IntoStringError, NulError};
use std::io;
use std::num::ParseIntError;
use std::str::Utf8Error;
use std::string::FromUtf8Error;
use tokio::sync::mpsc::error::{SendError, TrySendError};
use tokio::sync::oneshot::error::RecvError;
use crate::bus::XsdMessage;
#[derive(thiserror::Error, Debug)]
pub enum Error {
#[error("io issue encountered: {0}")]
Io(#[from] io::Error),
#[error("invalid data received on bus")]
InvalidBusData,
#[error("utf8 string decode failed: {0}")]
Utf8DecodeString(#[from] FromUtf8Error),
#[error("utf8 str decode failed: {0}")]
Utf8DecodeStr(#[from] Utf8Error),
#[error("unable to decode cstring as utf8: {0}")]
Utf8DecodeCstring(#[from] IntoStringError),
#[error("nul byte found in string: {0}")]
NulByteFoundString(#[from] NulError),
#[error("unable to find nul byte in vec: {0}")]
VecNulByteNotFound(#[from] FromVecWithNulError),
#[error("unable to parse integer: {0}")]
ParseInt(#[from] ParseIntError),
#[error("bus was not found on any available path")]
BusNotFound,
#[error("store responded with error: `{0}`")]
ResponseError(String),
#[error("invalid permissions provided")]
InvalidPermissions,
#[error("failed to receive reply: {0}")]
ReceiverError(#[from] RecvError),
#[error("failed to send request: {0}")]
SendError(#[from] SendError<XsdMessage>),
#[error("failed to send request: {0}")]
TrySendError(#[from] TrySendError<XsdMessage>),
}
impl Error {
pub fn is_noent_response(&self) -> bool {
match self {
Error::ResponseError(message) => message == "ENOENT",
_ => false,
}
}
}
pub type Result<T> = std::result::Result<T, Error>;