Function buf_read_ext::async_stream_until_token

pub fn async_stream_until_token<R, W>(
    stream: R, 
    token: &[u8], 
    out: W
) -> AsyncStreamUntilToken<R, W> where
    R: AsyncRead + BufRead,
    W: AsyncWrite, 

Returns a future that streams all bytes to out until the token delimiter or EOF is reached.

This future will continue to read (and stream) bytes from the underlying stream until the token or end-of-file is found. Once found, all bytes up to (but not including) the token (if found) will have been streamed to out and the input stream will advance past the token.

This function will return an AsyncStreamUntilTokenOutput which includes the number of bytes that were streamed to out (this will exclude the count of token bytes, if the token was found), and whether or not the token was found.