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api_client: Use thiserror for errors

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Added thiserror crate for Error enums to the api_client package

Signed-off-by: SamrutGadde <samrut.gadde@gmail.com>
This commit is contained in:
SamrutGadde
2024-05-01 18:36:54 -05:00
committed by Bo Chen
parent 30b6e412af
commit 5d0d56f50b
3 changed files with 14 additions and 26 deletions
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1
api_client/Cargo.toml
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@@ -5,4 +5,5 @@ name = "api_client"
version = "0.1.0"
[dependencies]
thiserror = "1.0.61"
vmm-sys-util = "0.12.1"

30
api_client/src/lib.rs
View File

@@ -3,41 +3,27 @@
// SPDX-License-Identifier: Apache-2.0
//
use std::fmt;
use std::io::{Read, Write};
use std::os::unix::io::RawFd;
use thiserror::Error;
use vmm_sys_util::sock_ctrl_msg::ScmSocket;
#[derive(Debug)]
#[derive(Debug, Error)]
pub enum Error {
#[error("Error writing to or reading from HTTP socket: {0}")]
Socket(std::io::Error),
#[error("Error writing to or reading from HTTP socket: {0}")]
SocketSendFds(vmm_sys_util::errno::Error),
#[error("Error parsing HTTP status code: {0}")]
StatusCodeParsing(std::num::ParseIntError),
#[error("HTTP output is missing protocol statement")]
MissingProtocol,
#[error("Error parsing HTTP Content-Length field: {0}")]
ContentLengthParsing(std::num::ParseIntError),
#[error("Server responded with an error: {0:?}")]
ServerResponse(StatusCode, Option<String>),
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
use Error::*;
match self {
Socket(e) => write!(f, "Error writing to or reading from HTTP socket: {e}"),
SocketSendFds(e) => write!(f, "Error writing to or reading from HTTP socket: {e}"),
StatusCodeParsing(e) => write!(f, "Error parsing HTTP status code: {e}"),
MissingProtocol => write!(f, "HTTP output is missing protocol statement"),
ContentLengthParsing(e) => write!(f, "Error parsing HTTP Content-Length field: {e}"),
ServerResponse(s, o) => {
if let Some(o) = o {
write!(f, "Server responded with an error: {s:?}: {o}")
} else {
write!(f, "Server responded with an error: {s:?}")
}
}
}
}
}
#[derive(Clone, Copy, Debug)]
pub enum StatusCode {
Continue,