io_lifetimes

Struct OwnedFd

1.63.0 · Source
pub struct OwnedFd { /* private fields */ }
Expand description

An owned file descriptor.

This closes the file descriptor on drop. It is guaranteed that nobody else will close the file descriptor.

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.

You can use AsFd::as_fd to obtain a BorrowedFd.

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impl OwnedFd

1.63.0 · Source

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.

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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

Takes ownership of a ChildStderr’s file descriptor.

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impl From<ChildStdin> for OwnedFd

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fn from(child_stdin: ChildStdin) -> OwnedFd

Takes ownership of a ChildStdin’s file descriptor.

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impl From<ChildStdout> for OwnedFd

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fn from(child_stdout: ChildStdout) -> OwnedFd

Takes ownership of a ChildStdout’s file descriptor.

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impl From<File> for OwnedFd

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fn from(file: File) -> OwnedFd

Takes ownership of a File’s underlying file descriptor.

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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<PipeReader> for OwnedFd

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fn from(pipe: PipeReader) -> OwnedFd

Converts to this type from the input type.
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impl From<PipeWriter> for OwnedFd

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fn from(pipe: PipeWriter) -> 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

Takes ownership of a TcpListener’s socket file descriptor.

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impl From<TcpStream> for OwnedFd

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fn from(tcp_stream: TcpStream) -> OwnedFd

Takes ownership of a TcpStream’s socket file descriptor.

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impl From<UdpSocket> for OwnedFd

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fn from(udp_socket: UdpSocket) -> OwnedFd

Takes ownership of a UdpSocket’s file descriptor.

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impl From<UnixDatagram> for OwnedFd

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fn from(unix_datagram: UnixDatagram) -> OwnedFd

Takes ownership of a UnixDatagram’s socket file descriptor.

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impl From<UnixListener> for OwnedFd

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fn from(listener: UnixListener) -> OwnedFd

Takes ownership of a UnixListener’s socket file descriptor.

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impl From<UnixStream> for OwnedFd

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fn from(unix_stream: UnixStream) -> OwnedFd

Takes ownership of a UnixStream’s socket file descriptor.

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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 IsTerminal for OwnedFd

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fn is_terminal(&self) -> bool

Returns true if the descriptor/handle refers to a terminal/tty. Read more
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impl FilelikeViewType for OwnedFd

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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,

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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,

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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

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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<OwnedFd>>(into_owned: Owned) -> Self
where Self: Sized + 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.
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impl<T, U> Into<U> for T
where U: From<T>,

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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>,

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type Error = Infallible

The type returned in the event of a conversion error.
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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>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.