how to read some in vibe.d tcpconnection?

[zhmt via Digitalmars-d-learn]

>
> Take a look at empty and leastSize.
>
> https://github.com/rejectedsoftware/vibe.d/blob/master/source/vibe/core/stream.d#L33

@Rikki Cattermole
Thanks for your reply, but it is not what I want, and I cant 
implement my goal with them.


in boost::asio, It has a method like this :

  basic_stream_socket::read_some (1 of 2 overloads)

  This function is used to read data from the stream socket. The 
function call will block until one or more bytes of data has been 
read successfully, or until an error occurs.