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use std::ffi::CStr;
use libc::c_int;
use sys::*;
use std::{error, fmt};
#[derive(Clone, PartialEq, Eq, Debug)]
pub enum Error {
Initialized,
NotFound,
General,
Write,
Read,
String(String),
}
pub type Result<T> = ::std::result::Result<T, Error>;
impl From<c_int> for Error {
fn from(value: c_int) -> Error {
match value {
_ => Error::General
}
}
}
impl From<*mut hid_device> for Error {
fn from(value: *mut hid_device) -> Error {
unsafe {
Error::String(CStr::from_ptr(hid_error(value) as *const _).to_str().unwrap().to_owned())
}
}
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.write_str(error::Error::description(self))
}
}
impl error::Error for Error {
fn description(&self) -> &str {
match *self {
Error::Initialized =>
"Already initialized.",
Error::NotFound =>
"Device not found.",
Error::General =>
"General error.",
Error::Write =>
"Write error.",
Error::Read =>
"Read error.",
Error::String(ref err) =>
err,
}
}
}
|
