Struct std::os::wasi::io::OwnedFd

source · [−]

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

🔬 This is a nightly-only experimental API. (io_safety #87074)

This is supported on WASI only.

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

impl OwnedFd

pub fn try_clone(&self) -> Result<Self>

🔬 This is a nightly-only experimental API. (io_safety #87074)

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

Trait Implementations

impl AsFd for OwnedFd

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

🔬 This is a nightly-only experimental API. (io_safety #87074)

This is supported on Unix only.

Borrows the file descriptor. Read more

impl AsRawFd for OwnedFd

fn as_raw_fd(&self) -> RawFd

This is supported on Unix only.

Extracts the raw file descriptor. Read more

impl Debug for OwnedFd

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

Formats the value using the given formatter. Read more

impl Drop for OwnedFd

fn drop(&mut self)

Executes the destructor for this type. Read more

impl From<ChildStderr> for OwnedFd

This is supported on Unix only.

fn from(child_stderr: ChildStderr) -> OwnedFd

Converts to this type from the input type.

impl From<ChildStdin> for OwnedFd

This is supported on Unix only.

fn from(child_stdin: ChildStdin) -> OwnedFd

Converts to this type from the input type.

impl From<ChildStdout> for OwnedFd

This is supported on Unix only.

fn from(child_stdout: ChildStdout) -> OwnedFd

Converts to this type from the input type.

impl From<File> for OwnedFd

fn from(file: File) -> OwnedFd

Converts to this type from the input type.

impl From<OwnedFd> for UnixDatagram

This is supported on Unix only.

fn from(owned: OwnedFd) -> Self

Converts to this type from the input type.

impl From<OwnedFd> for UnixListener

This is supported on Unix only.

fn from(fd: OwnedFd) -> UnixListener

Converts to this type from the input type.

impl From<OwnedFd> for UnixStream

This is supported on Unix only.

fn from(owned: OwnedFd) -> Self

Converts to this type from the input type.

impl From<OwnedFd> for Stdio

This is supported on Unix only.

fn from(fd: OwnedFd) -> Stdio

Converts to this type from the input type.

impl From<OwnedFd> for PidFd

This is supported on Linux only.

fn from(fd: OwnedFd) -> Self

Converts to this type from the input type.

impl From<OwnedFd> for File

fn from(owned_fd: OwnedFd) -> Self

Converts to this type from the input type.

impl From<OwnedFd> for TcpStream

fn from(owned_fd: OwnedFd) -> Self

Converts to this type from the input type.

impl From<OwnedFd> for TcpListener

fn from(owned_fd: OwnedFd) -> Self

Converts to this type from the input type.

impl From<OwnedFd> for UdpSocket

fn from(owned_fd: OwnedFd) -> Self

Converts to this type from the input type.

impl From<PidFd> for OwnedFd

This is supported on Linux only.

fn from(pid_fd: PidFd) -> Self

Converts to this type from the input type.

impl From<TcpListener> for OwnedFd

fn from(tcp_listener: TcpListener) -> OwnedFd

Converts to this type from the input type.

impl From<TcpStream> for OwnedFd

fn from(tcp_stream: TcpStream) -> OwnedFd

Converts to this type from the input type.

impl From<UdpSocket> for OwnedFd

fn from(udp_socket: UdpSocket) -> OwnedFd

Converts to this type from the input type.

impl From<UnixDatagram> for OwnedFd

This is supported on Unix only.

fn from(unix_datagram: UnixDatagram) -> OwnedFd

Converts to this type from the input type.

impl From<UnixListener> for OwnedFd

This is supported on Unix only.

fn from(listener: UnixListener) -> OwnedFd

Converts to this type from the input type.

impl From<UnixStream> for OwnedFd

This is supported on Unix only.

fn from(unix_stream: UnixStream) -> OwnedFd

Converts to this type from the input type.

impl FromRawFd for OwnedFd

unsafe fn from_raw_fd(fd: RawFd) -> Self

This is supported on Unix only.

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.

impl IntoRawFd for OwnedFd

fn into_raw_fd(self) -> RawFd

This is supported on Unix only.

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

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

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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.

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.

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.