Method poll_read

crates/wasi/src/cli/file.rs:141–153

(
        self: Pin<&mut Self>,
        _cx: &mut Context<'_>,
        buf: &mut io::ReadBuf<'_>,
    )

impl AsyncRead for InputFile {
    fn poll_read(
        self: Pin<&mut Self>,
        _cx: &mut Context<'_>,
        buf: &mut io::ReadBuf<'_>,
    ) -> Poll<io::Result<()>> {
        match (&*self.file).read(buf.initialize_unfilled()) {
            Ok(n) => {
                buf.advance(n);
                Poll::Ready(Ok(()))
            }
            Err(e) => Poll::Ready(Err(e)),
        }
    }
}