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virtio-devices: block: Derive thiserror::Error

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Signed-off-by: Bo Chen <chen.bo@intel.com>
This commit is contained in:
Bo Chen 2022-08-10 16:06:24 -07:00 committed by Rob Bradford
parent 1793c1cb39
commit f9b36a3412
1 changed files with 11 additions and 10 deletions
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21
virtio-devices/src/block.rs
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@ -33,6 +33,7 @@ use std::result;
use std::sync::atomic::{AtomicBool, AtomicU64, Ordering}; use std::sync::atomic::{AtomicBool, AtomicU64, Ordering};
use std::sync::{Arc, Barrier}; use std::sync::{Arc, Barrier};
use std::{collections::HashMap, convert::TryInto}; use std::{collections::HashMap, convert::TryInto};
use thiserror::Error;
use versionize::{VersionMap, Versionize, VersionizeResult}; use versionize::{VersionMap, Versionize, VersionizeResult};
use versionize_derive::Versionize; use versionize_derive::Versionize;
use virtio_bindings::bindings::virtio_blk::*; use virtio_bindings::bindings::virtio_blk::*;
@ -53,25 +54,25 @@ const COMPLETION_EVENT: u16 = EPOLL_HELPER_EVENT_LAST + 2;
// New 'wake up' event from the rate limiter // New 'wake up' event from the rate limiter
const RATE_LIMITER_EVENT: u16 = EPOLL_HELPER_EVENT_LAST + 3; const RATE_LIMITER_EVENT: u16 = EPOLL_HELPER_EVENT_LAST + 3;
#[derive(Debug)] #[derive(Error, Debug)]
pub enum Error { pub enum Error {
/// Failed to parse the request. #[error("Failed to parse the request: {0}")]
RequestParsing(block_util::Error), RequestParsing(block_util::Error),
/// Failed to execute the request. #[error("Failed to execute the request: {0}")]
RequestExecuting(block_util::ExecuteError), RequestExecuting(block_util::ExecuteError),
/// Failed to complete the request. #[error("Failed to complete the request: {0}")]
RequestCompleting(block_util::Error), RequestCompleting(block_util::Error),
/// Missing the expected entry in the list of requests. #[error("Missing the expected entry in the list of requests")]
MissingEntryRequestList, MissingEntryRequestList,
/// The asynchronous request returned with failure. #[error("The asynchronous request returned with failure")]
AsyncRequestFailure, AsyncRequestFailure,
/// Failed synchronizing the file #[error("Failed synchronizing the file: {0}")]
Fsync(AsyncIoError), Fsync(AsyncIoError),
/// Failed adding used index #[error("Failed adding used index: {0}")]
QueueAddUsed(virtio_queue::Error), QueueAddUsed(virtio_queue::Error),
/// Failed creating an iterator over the queue #[error("Failed creating an iterator over the queue: {0}")]
QueueIterator(virtio_queue::Error), QueueIterator(virtio_queue::Error),
/// Failed to update request status #[error("Failed to update request status: {0}")]
RequestStatus(GuestMemoryError), RequestStatus(GuestMemoryError),
} }