Trait std::os::windows::io::AsHandle

pub trait AsHandle {
    // Required method
    fn as_handle(&self) -> BorrowedHandle<'_>;
}

Available on Windows only.

从底层对象借用句柄的 trait。

Required Methods

fn as_handle(&self) -> BorrowedHandle<'_>

借用句柄。

Example

use std::fs::File;
use std::os::windows::io::{AsHandle, BorrowedHandle};

let mut f = File::open("foo.txt")?;
let borrowed_handle: BorrowedHandle<'_> = f.as_handle();

Implementors

impl AsHandle for File

impl AsHandle for Stderr

impl AsHandle for Stdin

impl AsHandle for Stdout

impl AsHandle for Child

impl AsHandle for ChildStderr

impl AsHandle for ChildStdin

impl AsHandle for ChildStdout

impl AsHandle for BorrowedHandle<'_>

impl AsHandle for OwnedHandle

impl<'a> AsHandle for StderrLock<'a>

impl<'a> AsHandle for StdinLock<'a>

impl<'a> AsHandle for StdoutLock<'a>

impl<T> AsHandle for JoinHandle<T>

impl<T: AsHandle> AsHandle for &T

impl<T: AsHandle> AsHandle for &mut T

impl<T: AsHandle> AsHandle for Box<T>

impl<T: AsHandle> AsHandle for Rc<T>

impl<T: AsHandle> AsHandle for Arc<T>

这个 impl 允许在 Arc 上实现需要 AsHandle 的 traits。

use std::fs::File;
use std::sync::Arc;

trait MyTrait: AsHandle {}
impl MyTrait for Arc<File> {}
impl MyTrait for Box<File> {}