# Struct rustix::fd::OwnedFd

1.63.0 · source · [−]

    #[repr(transparent)]pub struct OwnedFd { /* private fields */ }

Expand description

An owned file descriptor.

This closes the file descriptor on drop.

This uses `repr(transparent)` and has the representation of a host file descriptor, so it can be used in FFI in places where a file descriptor is passed as a consumed argument or returned as an owned value, and it never has the value `-1`.

## Implementations

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### impl OwnedFd

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#### pub fn try_clone(&self) -> Result<OwnedFd, Error>

Creates a new `OwnedFd` instance that shares the same underlying file description as the existing `OwnedFd` instance.

## Trait Implementations

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### impl AsFd for OwnedFd

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#### fn as_fd(&self) -> BorrowedFd<'_>

Borrows the file descriptor. Read more

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### impl AsRawFd for OwnedFd

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#### fn as_raw_fd(&self) -> i32

Extracts the raw file descriptor. Read more

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### impl Debug for OwnedFd

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#### fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more

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### impl Drop for OwnedFd

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#### fn drop(&mut self)

Executes the destructor for this type. Read more

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### impl From<ChildStderr> for OwnedFd

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#### fn from(child_stderr: ChildStderr) -> OwnedFd

Converts to this type from the input type.

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### impl From<ChildStdin> for OwnedFd

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#### fn from(child_stdin: ChildStdin) -> OwnedFd

Converts to this type from the input type.

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### impl From<ChildStdout> for OwnedFd

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#### fn from(child_stdout: ChildStdout) -> OwnedFd

Converts to this type from the input type.

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### impl<'context, T: AsFd + Into<OwnedFd> + From<OwnedFd>> From<Epoll<Owning<'context, T>>> for OwnedFd

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#### fn from(epoll: Epoll<Owning<'context, T>>) -> Self

Converts to this type from the input type.

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### impl From<File> for OwnedFd

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#### fn from(file: File) -> OwnedFd

Converts to this type from the input type.

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### impl<'context, T: AsFd + Into<OwnedFd> + From<OwnedFd>> From<OwnedFd> for Epoll<Owning<'context, T>>

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#### fn from(fd: OwnedFd) -> Self

Converts to this type from the input type.

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### impl From<PidFd> for OwnedFd

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#### fn from(pid_fd: PidFd) -> OwnedFd

Converts to this type from the input type.

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### impl From<TcpListener> for OwnedFd

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#### fn from(tcp_listener: TcpListener) -> OwnedFd

Converts to this type from the input type.

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### impl From<TcpStream> for OwnedFd

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#### fn from(tcp_stream: TcpStream) -> OwnedFd

Converts to this type from the input type.

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### impl From<UdpSocket> for OwnedFd

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#### fn from(udp_socket: UdpSocket) -> OwnedFd

Converts to this type from the input type.

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### impl From<UnixDatagram> for OwnedFd

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#### fn from(unix_datagram: UnixDatagram) -> OwnedFd

Converts to this type from the input type.

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### impl From<UnixListener> for OwnedFd

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#### fn from(listener: UnixListener) -> OwnedFd

Converts to this type from the input type.

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### impl From<UnixStream> for OwnedFd

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#### fn from(unix_stream: UnixStream) -> OwnedFd

Converts to this type from the input type.

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### impl FromRawFd for OwnedFd

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#### unsafe fn from_raw_fd(fd: i32) -> OwnedFd

Constructs a new instance of `Self` from the given raw file descriptor.

##### Safety

The resource pointed to by `fd` must be open and suitable for assuming ownership. The resource must not require any cleanup other than `close`.

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### impl IntoRawFd for OwnedFd

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#### fn into_raw_fd(self) -> i32

Consumes this object, returning the raw underlying file descriptor. Read more

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### impl FilelikeViewType for OwnedFd

## Auto Trait Implementations

### impl RefUnwindSafe for OwnedFd

### impl Send for OwnedFd

### impl Sync for OwnedFd

### impl Unpin for OwnedFd

### impl UnwindSafe for OwnedFd

## Blanket Implementations

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### impl<T> Any for T where
T: 'static + ?Sized,

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#### fn type_id(&self) -> TypeId

Gets the `TypeId` of `self`. Read more

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### impl<T> AsFilelike for T where
T: AsFd,

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#### fn as_filelike(&self) -> BorrowedFd<'_>

Borrows the reference. Read more

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#### fn as_filelike_view<Target>(&self) -> FilelikeView<'_, Target> where
Target: FilelikeViewType,

Return a borrowing view of a resource which dereferences to a `&Target`. Read more

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### impl<T> AsRawFilelike for T where
T: AsRawFd,

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#### fn as_raw_filelike(&self) -> i32

Returns the raw value.

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### impl<T> AsRawSocketlike for T where
T: AsRawFd,

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#### fn as_raw_socketlike(&self) -> i32

Returns the raw value.

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### impl<T> AsSocketlike for T where
T: AsFd,

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#### fn as_socketlike(&self) -> BorrowedFd<'_>

Borrows the reference.

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#### fn as_socketlike_view<Target>(&self) -> SocketlikeView<'_, Target> where
Target: SocketlikeViewType,

Return a borrowing view of a resource which dereferences to a `&Target`. Read more

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### impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

#### fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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### impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

#### fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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### impl<T> From<T> for T

const: unstable · source

#### fn from(t: T) -> T

Returns the argument unchanged.

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### impl<T> FromFd for T where
T: From<OwnedFd>,

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#### fn from_fd(owned_fd: OwnedFd) -> T

👎 Deprecated since 1.0.0:

`FromFd::from_fd` is replaced by `From<OwnedFd>::from`

Constructs a new instance of `Self` from the given file descriptor. Read more

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#### fn from_into_fd<Owned>(into_owned: Owned) -> Self where
Owned: Into<OwnedFd>,
Self: From<OwnedFd>,

Constructs a new instance of `Self` from the given file descriptor converted from `into_owned`. Read more

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### impl<T> FromFilelike for T where
T: From<OwnedFd>,

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#### fn from_filelike(owned: OwnedFd) -> T

Constructs a new instance of `Self` from the given filelike object. Read more

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#### fn from_into_filelike<Owned>(owned: Owned) -> T where
Owned: IntoFilelike,

Constructs a new instance of `Self` from the given filelike object converted from `into_owned`. Read more

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### impl<T> FromRawFilelike for T where
T: FromRawFd,

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#### unsafe fn from_raw_filelike(raw: i32) -> T

Constructs `Self` from the raw value. Read more

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### impl<T> FromRawSocketlike for T where
T: FromRawFd,

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#### unsafe fn from_raw_socketlike(raw: i32) -> T

Constructs `Self` from the raw value. Read more

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### impl<T> FromSocketlike for T where
T: From<OwnedFd>,

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#### fn from_socketlike(owned: OwnedFd) -> T

Constructs a new instance of `Self` from the given socketlike object.

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#### fn from_into_socketlike<Owned>(owned: Owned) -> T where
Owned: IntoSocketlike,

Constructs a new instance of `Self` from the given socketlike object converted from `into_owned`. Read more

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### impl<T, U> Into<U> for T where
U: From<T>,

const: unstable · source

#### fn into(self) -> U

Calls `U::from(self)`.

That is, this conversion is whatever the implementation of `From<T> for U` chooses to do.

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### impl<T> IntoFd for T where
OwnedFd: From<T>,

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#### fn into_fd(self) -> OwnedFd

👎 Deprecated since 1.0.0:

`IntoFd` is replaced by `From<...> for OwnedFd` or `Into<OwnedFd>`

Consumes this object, returning the underlying file descriptor. Read more

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### impl<T> IntoFilelike for T where
T: Into<OwnedFd>,

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#### fn into_filelike(self) -> OwnedFd

Consumes this object, returning the underlying filelike object. Read more

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### impl<T> IntoRawFilelike for T where
T: IntoRawFd,

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#### fn into_raw_filelike(self) -> i32

Returns the raw value.

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### impl<T> IntoRawSocketlike for T where
T: IntoRawFd,

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#### fn into_raw_socketlike(self) -> i32

Returns the raw value.

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### impl<T> IntoSocketlike for T where
T: Into<OwnedFd>,

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#### fn into_socketlike(self) -> OwnedFd

Consumes this object, returning the underlying socketlike object.

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### impl<T, U> TryFrom<U> for T where
U: Into<T>,

#### type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

#### fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

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### impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

#### type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

const: unstable · source

#### fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.