Trait sgx_tstd::os::fd::AsFd

pub trait AsFd {
    // Required method
    fn as_fd(&self) -> BorrowedFd<'_>;
}

A trait to borrow the file descriptor from an underlying object.

This is only available on unix platforms and must be imported in order to call the method. Windows platforms have a corresponding AsHandle and AsSocket set of traits.

Required Methods

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

Borrows the file descriptor.

Example

use std::fs::File;

let mut f = File::open("foo.txt")?;
let borrowed_fd: BorrowedFd<'_> = f.as_fd();

Implementations on Foreign Types

impl<T: AsFd> AsFd for &T

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

impl<T: AsFd> AsFd for &mut T

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

Implementors

impl AsFd for Stderr

impl AsFd for Stdin

impl AsFd for Stdout

impl AsFd for File

impl AsFd for BorrowedFd<'_>

impl AsFd for OwnedFd

impl<'a> AsFd for StderrLock<'a>

impl<'a> AsFd for StdinLock<'a>

impl<'a> AsFd for StdoutLock<'a>

impl<T: AsFd> AsFd for Box<T>

impl<T: AsFd> AsFd for Rc<T>

impl<T: AsFd> AsFd for Arc<T>

This impl allows implementing traits that require AsFd on Arc.

use std::net::UdpSocket;
use std::sync::Arc;

trait MyTrait: AsFd {}
impl MyTrait for Arc<UdpSocket> {}
impl MyTrait for Box<UdpSocket> {}