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https://github.com/cloud-hypervisor/cloud-hypervisor.git
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3f09eff6c5
This introduces setupmapping and removemapping methods to server.rs,
passthrough.rs and filesystem.rs in order to support virtiofs dax mode
inside guest.
Since we don't really want the server.rs to know that it is dealing with
vhost-user specifically, this is making it more generic by adding a new
trait which has three functions map()/unmap()/sync() corresponding to
fs_slave_{map, unmap, sync}, server.rs will take anything that implements
the trait.
Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com>
59 lines
1.8 KiB
Rust
59 lines
1.8 KiB
Rust
// Copyright © 2019 Intel Corporation
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//
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// SPDX-License-Identifier: Apache-2.0 AND BSD-3-Clause
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#[macro_use]
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extern crate log;
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pub mod descriptor_utils;
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pub mod file_traits;
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pub mod filesystem;
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pub mod fs_cache_req_handler;
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pub mod fuse;
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pub mod multikey;
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pub mod passthrough;
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pub mod server;
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use std::ffi::FromBytesWithNulError;
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use std::{error, fmt, io};
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#[derive(Debug)]
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pub enum Error {
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/// Failed to decode protocol messages.
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DecodeMessage(io::Error),
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/// Failed to encode protocol messages.
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EncodeMessage(io::Error),
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/// One or more parameters are missing.
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MissingParameter,
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/// A C string parameter is invalid.
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InvalidCString(FromBytesWithNulError),
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/// The `len` field of the header is too small.
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InvalidHeaderLength,
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/// The `size` field of the `SetxattrIn` message does not match the length
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/// of the decoded value.
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InvalidXattrSize((u32, usize)),
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}
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impl error::Error for Error {}
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impl fmt::Display for Error {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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use Error::*;
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match self {
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DecodeMessage(err) => write!(f, "failed to decode fuse message: {}", err),
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EncodeMessage(err) => write!(f, "failed to encode fuse message: {}", err),
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MissingParameter => write!(f, "one or more parameters are missing"),
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InvalidHeaderLength => write!(f, "the `len` field of the header is too small"),
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InvalidCString(err) => write!(f, "a c string parameter is invalid: {}", err),
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InvalidXattrSize((size, len)) => write!(
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f,
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"The `size` field of the `SetxattrIn` message does not match the length of the\
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decoded value: size = {}, value.len() = {}",
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size, len
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),
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}
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}
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}
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pub type Result<T> = ::std::result::Result<T, Error>;
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