Trait IntoRawFd 

pub trait IntoRawFd {
    // Required method
    fn into_raw_fd(self) -> RawFd;
}

Available on Unix or Hermit or Trusty or WASI or Motor OS only.

A trait to express the ability to consume an object and acquire ownership of its raw file descriptor.

Required Methods

fn into_raw_fd(self) -> RawFd

Consumes this object, returning the raw underlying file descriptor.

This function is typically used to transfer ownership of the underlying file descriptor to the caller. When used in this way, callers are then the unique owners of the file descriptor and must close it once it’s no longer needed.

However, transferring ownership is not strictly required. Use a Into<OwnedFd>::into implementation for an API which strictly transfers ownership.

Example

use std::fs::File;
#[cfg(any(unix, target_os = "wasi"))]
use std::os::fd::{IntoRawFd, RawFd};

let f = File::open("foo.txt")?;
#[cfg(any(unix, target_os = "wasi"))]
let raw_fd: RawFd = f.into_raw_fd();

Implementors

impl IntoRawFd for Dir

impl IntoRawFd for std::fs::File

Available on non-Trusty only.

impl IntoRawFd for PipeReader

Available on non-Trusty only.

impl IntoRawFd for PipeWriter

Available on non-Trusty only.

impl IntoRawFd for TcpListener

Available on non-Trusty only.

impl IntoRawFd for TcpStream

Available on non-Trusty only.

impl IntoRawFd for UdpSocket

Available on non-Trusty only.

impl IntoRawFd for ChildStderr

Available on non-Hermit and (Unix) and not ((WebAssembly and non-WASI, or Fortanix and SGX)) only.

impl IntoRawFd for ChildStdin

Available on non-Hermit and (Unix) and not ((WebAssembly and non-WASI, or Fortanix and SGX)) only.

impl IntoRawFd for ChildStdout

Available on non-Hermit and (Unix) and not ((WebAssembly and non-WASI, or Fortanix and SGX)) only.

impl IntoRawFd for FileDesc

impl IntoRawFd for std::sys::fs::unix::File

impl IntoRawFd for Socket

impl IntoRawFd for std::sys::pal::unix::linux::pidfd::PidFd

Available on Linux only.

impl IntoRawFd for std::os::linux::process::PidFd

Available on not ((WebAssembly and non-WASI, or Fortanix and SGX)) and (Linux) only.

impl IntoRawFd for UnixDatagram

Available on non-Hermit and (Unix) and not ((WebAssembly and non-WASI, or Fortanix and SGX)) only.

impl IntoRawFd for UnixListener

Available on non-Hermit and (Unix) and not ((WebAssembly and non-WASI, or Fortanix and SGX)) only.

impl IntoRawFd for UnixStream

Available on non-Hermit and (Unix) and not ((WebAssembly and non-WASI, or Fortanix and SGX)) only.

impl IntoRawFd for OwnedFd

impl IntoRawFd for RawFd