Trait async_std::os::unix::io::FromRawFd1.1.0[−][src]

pub trait FromRawFd {
    pub unsafe fn from_raw_fd(fd: i32) -> Self;
}
[−]

A trait to express the ability to construct an object from a raw file descriptor.

Required methods

pub unsafe fn from_raw_fd(fd: i32) -> Self[src][−]

Constructs a new instance of Self from the given raw file descriptor.

This function consumes ownership of the specified file descriptor. The returned object will take responsibility for closing it when the object goes out of scope.

This function is also unsafe as the primitives currently returned have the contract that they are the sole owner of the file descriptor they are wrapping. Usage of this function could accidentally allow violating this contract which can cause memory unsafety in code that relies on it being true.

Example

use std::fs::File;
use std::os::unix::io::{FromRawFd, IntoRawFd, RawFd};

let f = File::open("foo.txt")?;
let raw_fd: RawFd = f.into_raw_fd();
// SAFETY: no other functions should call `from_raw_fd`, so there
// is only one owner for the file descriptor.
let f = unsafe { File::from_raw_fd(raw_fd) };

Implementations on Foreign Types

impl FromRawFd for File[src][−]

impl FromRawFd for i32[src][−]

impl FromRawFd for TcpStream[src][−]

impl FromRawFd for UdpSocket[src][−]

impl FromRawFd for UnixListener[src][−]

impl FromRawFd for TcpListener[src][−]

impl FromRawFd for UnixDatagram[src][−]

impl FromRawFd for UnixStream[src][−]

Implementors

impl FromRawFd for async_std::fs::File[src][+]

impl FromRawFd for async_std::net::TcpListener[src][+]

impl FromRawFd for async_std::net::TcpStream[src][+]

impl FromRawFd for async_std::net::UdpSocket[src][+]

impl FromRawFd for async_std::os::unix::net::UnixDatagram[src][+]

impl FromRawFd for async_std::os::unix::net::UnixListener[src][+]

impl FromRawFd for async_std::os::unix::net::UnixStream[src][+]

impl FromRawFd for Stdio1.2.0[src][+]

impl FromRawFd for TcpStream

impl FromRawFd for TcpListener

impl FromRawFd for UdpSocket

impl FromRawFd for UnixDatagram

impl FromRawFd for UnixListener

impl FromRawFd for UnixStream

impl FromRawFd for TcpBuilder

impl FromRawFd for UdpBuilder

impl FromRawFd for Socket