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|
use std::ffi::NulError;
use std::io;
use sys;
/// Status type indicating the result of a Fuchsia syscall.
///
/// This type is generally used to indicate the reason for an error.
/// While this type can contain `Status::OK` (`ZX_OK` in C land), elements of this type are
/// generally constructed using the `ok` method, which checks for `ZX_OK` and returns a
/// `Result<(), Status>` appropriately.
#[repr(C)]
#[derive(Debug, Copy, Clone, Ord, PartialOrd, Eq, PartialEq, Hash)]
pub struct Status(sys::zx_status_t);
impl Status {
/// Returns `Ok(())` if the status was `OK`,
/// otherwise returns `Err(status)`.
pub fn ok(raw: sys::zx_status_t) -> Result<(), Status> {
if raw == Status::OK.0 {
Ok(())
} else {
Err(Status(raw))
}
}
pub fn from_raw(raw: sys::zx_status_t) -> Self {
Status(raw)
}
pub fn into_raw(self) -> sys::zx_status_t {
self.0
}
}
assoc_consts!(Status, [
OK = sys::ZX_OK;
INTERNAL = sys::ZX_ERR_INTERNAL;
NOT_SUPPORTED = sys::ZX_ERR_NOT_SUPPORTED;
NO_RESOURCES = sys::ZX_ERR_NO_RESOURCES;
NO_MEMORY = sys::ZX_ERR_NO_MEMORY;
CALL_FAILED = sys::ZX_ERR_CALL_FAILED;
INTERRUPTED_RETRY = sys::ZX_ERR_INTERRUPTED_RETRY;
INVALID_ARGS = sys::ZX_ERR_INVALID_ARGS;
BAD_HANDLE = sys::ZX_ERR_BAD_HANDLE;
WRONG_TYPE = sys::ZX_ERR_WRONG_TYPE;
BAD_SYSCALL = sys::ZX_ERR_BAD_SYSCALL;
OUT_OF_RANGE = sys::ZX_ERR_OUT_OF_RANGE;
BUFFER_TOO_SMALL = sys::ZX_ERR_BUFFER_TOO_SMALL;
BAD_STATE = sys::ZX_ERR_BAD_STATE;
TIMED_OUT = sys::ZX_ERR_TIMED_OUT;
SHOULD_WAIT = sys::ZX_ERR_SHOULD_WAIT;
CANCELED = sys::ZX_ERR_CANCELED;
PEER_CLOSED = sys::ZX_ERR_PEER_CLOSED;
NOT_FOUND = sys::ZX_ERR_NOT_FOUND;
ALREADY_EXISTS = sys::ZX_ERR_ALREADY_EXISTS;
ALREADY_BOUND = sys::ZX_ERR_ALREADY_BOUND;
UNAVAILABLE = sys::ZX_ERR_UNAVAILABLE;
ACCESS_DENIED = sys::ZX_ERR_ACCESS_DENIED;
IO = sys::ZX_ERR_IO;
IO_REFUSED = sys::ZX_ERR_IO_REFUSED;
IO_DATA_INTEGRITY = sys::ZX_ERR_IO_DATA_INTEGRITY;
IO_DATA_LOSS = sys::ZX_ERR_IO_DATA_LOSS;
BAD_PATH = sys::ZX_ERR_BAD_PATH;
NOT_DIR = sys::ZX_ERR_NOT_DIR;
NOT_FILE = sys::ZX_ERR_NOT_FILE;
FILE_BIG = sys::ZX_ERR_FILE_BIG;
NO_SPACE = sys::ZX_ERR_NO_SPACE;
STOP = sys::ZX_ERR_STOP;
NEXT = sys::ZX_ERR_NEXT;
]);
impl Status {
pub fn into_io_error(self) -> io::Error {
self.into()
}
}
impl From<io::ErrorKind> for Status {
fn from(kind: io::ErrorKind) -> Self {
use std::io::ErrorKind::*;
match kind {
NotFound => Status::NOT_FOUND,
PermissionDenied => Status::ACCESS_DENIED,
ConnectionRefused => Status::IO_REFUSED,
ConnectionAborted => Status::PEER_CLOSED,
AddrInUse => Status::ALREADY_BOUND,
AddrNotAvailable => Status::UNAVAILABLE,
BrokenPipe => Status::PEER_CLOSED,
AlreadyExists => Status::ALREADY_EXISTS,
WouldBlock => Status::SHOULD_WAIT,
InvalidInput => Status::INVALID_ARGS,
TimedOut => Status::TIMED_OUT,
Interrupted => Status::INTERRUPTED_RETRY,
UnexpectedEof |
WriteZero |
ConnectionReset |
NotConnected |
Other | _ => Status::IO,
}
}
}
impl From<Status> for io::ErrorKind {
fn from(status: Status) -> io::ErrorKind {
use std::io::ErrorKind::*;
match status {
Status::INTERRUPTED_RETRY => Interrupted,
Status::BAD_HANDLE => BrokenPipe,
Status::TIMED_OUT => TimedOut,
Status::SHOULD_WAIT => WouldBlock,
Status::PEER_CLOSED => ConnectionAborted,
Status::NOT_FOUND => NotFound,
Status::ALREADY_EXISTS => AlreadyExists,
Status::ALREADY_BOUND => AlreadyExists,
Status::UNAVAILABLE => AddrNotAvailable,
Status::ACCESS_DENIED => PermissionDenied,
Status::IO_REFUSED => ConnectionRefused,
Status::IO_DATA_INTEGRITY => InvalidData,
Status::BAD_PATH |
Status::INVALID_ARGS |
Status::OUT_OF_RANGE |
Status::WRONG_TYPE => InvalidInput,
Status::OK |
Status::NEXT |
Status::STOP |
Status::NO_SPACE |
Status::FILE_BIG |
Status::NOT_FILE |
Status::NOT_DIR |
Status::IO_DATA_LOSS |
Status::IO |
Status::CANCELED |
Status::BAD_STATE |
Status::BUFFER_TOO_SMALL |
Status::BAD_SYSCALL |
Status::INTERNAL |
Status::NOT_SUPPORTED |
Status::NO_RESOURCES |
Status::NO_MEMORY |
Status::CALL_FAILED |
_ => Other,
}
}
}
impl From<io::Error> for Status {
fn from(err: io::Error) -> Status {
err.kind().into()
}
}
impl From<Status> for io::Error {
fn from(status: Status) -> io::Error {
io::Error::from(io::ErrorKind::from(status))
}
}
impl From<NulError> for Status {
fn from(_error: NulError) -> Status {
Status::INVALID_ARGS
}
}
|
