Function error_retry_closure

examples/buffer_errors.rs:39–60

()

}

fn error_retry_closure() {
    use rustix::buffer::Buffer;
    use rustix::io;
    use rustix::io::retry_on_intr;

    fn b<B: Buffer<u8>>(b: B) -> io::Result<B::Output> {
        unsafe { Ok(b.assume_init(0)) }
    }

    let mut event_buf = [0; 4];

    // Ideally we'd write this, but it gets:
    // "cannot move out of `event_buf`, a captured variable in an `FnMut` closure".
    /*
    let event_buf_slice = event_buf.as_mut_slice();
    retry_on_intr(|| b(event_buf_slice)).unwrap();
    */

    // The fix: Add `&mut *`.
    let event_buf_slice = event_buf.as_mut_slice();
    retry_on_intr(|| b(&mut *event_buf_slice)).unwrap();
}

fn error_retry_closure_uninit() {
    use rustix::buffer::Buffer;