Trait std::os::wasi::io::AsRawFd

pub trait AsRawFd {
    fn as_raw_fd(&self) -> RawFd;
}

🔬 This is a nightly-only experimental API. (wasi_ext #71213)

This is supported on WASI only.

trait，用于从基础 object 提取原始 WASI 文件描述符。

Required methods

fn as_raw_fd(&self) -> RawFd

🔬 This is a nightly-only experimental API. (wasi_ext #71213)

提取原始文件描述符。

此方法不会将原始文件描述符的所有权传递给调用方。 仅当原始 object 尚未销毁时，才保证描述符是有效的。

Implementors

impl AsRawFd for File

fn as_raw_fd(&self) -> RawFd

🔬 This is a nightly-only experimental API. (wasi_ext #71213)

impl AsRawFd for Stderr

fn as_raw_fd(&self) -> RawFd

🔬 This is a nightly-only experimental API. (wasi_ext #71213)

impl AsRawFd for Stdin

fn as_raw_fd(&self) -> RawFd

🔬 This is a nightly-only experimental API. (wasi_ext #71213)

impl AsRawFd for Stdout

fn as_raw_fd(&self) -> RawFd

🔬 This is a nightly-only experimental API. (wasi_ext #71213)

impl AsRawFd for TcpListener

fn as_raw_fd(&self) -> RawFd

🔬 This is a nightly-only experimental API. (wasi_ext #71213)

impl AsRawFd for TcpStream

fn as_raw_fd(&self) -> RawFd

🔬 This is a nightly-only experimental API. (wasi_ext #71213)

impl AsRawFd for UdpSocket

fn as_raw_fd(&self) -> RawFd

🔬 This is a nightly-only experimental API. (wasi_ext #71213)

impl AsRawFd for RawFd

fn as_raw_fd(&self) -> RawFd

🔬 This is a nightly-only experimental API. (wasi_ext #71213)

impl<'a> AsRawFd for StderrLock<'a>

fn as_raw_fd(&self) -> RawFd

🔬 This is a nightly-only experimental API. (wasi_ext #71213)

impl<'a> AsRawFd for StdinLock<'a>

fn as_raw_fd(&self) -> RawFd

🔬 This is a nightly-only experimental API. (wasi_ext #71213)

impl<'a> AsRawFd for StdoutLock<'a>

fn as_raw_fd(&self) -> RawFd

🔬 This is a nightly-only experimental API. (wasi_ext #71213)