Function httpbis::solicit_async::recv_raw_frame

Important traits for Box<R>

impl<R> Read for Box<R> where
    R: Read + ?Sized, impl<W> Write for Box<W> where
    W: Write + ?Sized, impl<I> Iterator for Box<I> where
    I: Iterator + ?Sized,  type Item = <I as Iterator>::Item;

pub fn recv_raw_frame<'r, R: AsyncRead + 'r>(
    read: R, 
    max_frame_size: u32
) -> Box<Future<Item = (R, RawFrame), Error = Error> + 'r>