Struct serde::lib::core::os::unix::prelude::OwnedFd

1.63.0 · source ·
#[repr(transparent)]
pub struct OwnedFd { fd: i32, }
Available on Unix only.
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.

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§fd: i32

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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

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<OwnedFd> for ChildStderr

Create a ChildStderr from the provided OwnedFd.

The provided file descriptor must point to a pipe with the CLOEXEC flag set.

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fn from(fd: OwnedFd) -> ChildStderr

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

Create a ChildStdin from the provided OwnedFd.

The provided file descriptor must point to a pipe with the CLOEXEC flag set.

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fn from(fd: OwnedFd) -> ChildStdin

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

Create a ChildStdout from the provided OwnedFd.

The provided file descriptor must point to a pipe with the CLOEXEC flag set.

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fn from(fd: OwnedFd) -> ChildStdout

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

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fn from(owned_fd: OwnedFd) -> File

Returns a File that takes ownership of the given file descriptor.

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impl From<OwnedFd> for PidFd

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fn from(fd: OwnedFd) -> PidFd

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

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fn from(fd: OwnedFd) -> Stdio

Takes ownership of a file descriptor and returns a Stdio that can attach a stream to it.

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impl From<OwnedFd> for TcpListener

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fn from(owned_fd: OwnedFd) -> TcpListener

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

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fn from(owned_fd: OwnedFd) -> TcpStream

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

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fn from(owned_fd: OwnedFd) -> UdpSocket

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

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fn from(owned: OwnedFd) -> UnixDatagram

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

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fn from(fd: OwnedFd) -> UnixListener

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

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fn from(owned: OwnedFd) -> UnixStream

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

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

Auto Trait Implementations§

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> 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, 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, 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.