pub trait IntoRawFd {
fn into_raw_fd(self) -> RawFd;
}
This is supported on WASI only.
Expand description
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
fn into_raw_fd(self) -> RawFd
Consumes this object, returning the raw underlying file descriptor.
This function transfers ownership of the underlying file descriptor to the caller. Callers are then the unique owners of the file descriptor and must close the descriptor once it’s no longer needed.
Example
use std::fs::File;
#[cfg(unix)]
use std::os::unix::io::{IntoRawFd, RawFd};
#[cfg(target_os = "wasi")]
use std::os::wasi::io::{IntoRawFd, RawFd};
let f = File::open("foo.txt")?;
#[cfg(any(unix, target_os = "wasi"))]
let raw_fd: RawFd = f.into_raw_fd();
RunImplementors
impl IntoRawFd for File
impl IntoRawFd for TcpListener
impl IntoRawFd for TcpStream
impl IntoRawFd for UdpSocket
impl IntoRawFd for ChildStderr
This is supported on Unix only.
impl IntoRawFd for ChildStdin
This is supported on Unix only.
impl IntoRawFd for ChildStdout
This is supported on Unix only.
impl IntoRawFd for PidFd
This is supported on Linux only.
impl IntoRawFd for OwnedFd
impl IntoRawFd for UnixDatagram
This is supported on Unix only.
impl IntoRawFd for UnixListener
This is supported on Unix only.
impl IntoRawFd for UnixStream
This is supported on Unix only.