Re: POP3 "resume download" extension

Keith Moore wrote:

> > Thinking about pipelining, though, how does this sound: POP3 is normally a
> > half-duplex-like dialog.  Suppose we allow an allowed a received command
> > sequence (like maybe "!NEXT") to queue an interrupt of the download at
> > the next chunk.
>
> If you're suggesting that servers do out-of-order command processing,
> I don't think that's the way to go.
>

No, I didn't really mean out-of-order command processing.  What I meant is that
there would be a recurring state at the end of every chunk in which the server
checks to see whether it has received an "interrupt" command.  If it has, it
could skip to the start of the next message.  If it hasn't, it would continue
with the next chunk.

This approach has the advantage that both the client and server need do nothing
at all if the download is to continue.  I just don't know how hard the
"listenening" is for most server implementations.

Chris