It looks like what you're created here is a BufferedStream. A read/write
stream that sits between a readstream and a writestream and allows you to
pause/resume and will by buffering data. That's great and I'm finding that
people really need this. I wrote one a while back and tried to get some
traction behind it, but the core guys are not very keen on buffering data
(for good reason, but I think they're coming around).
Anyway, this is a good implementation. The only thing I would suggest is
that you not re-implement the pipe method. That is what the stream module
is for, so you should just have your custom stream inherit from
require('stream').Stream.
Also a minor detail, but I don't think you should turn the data back into a
Buffer object if it's already a string. These types of things should
provide singular functionality and not mess with the data if it's not
absolutely necessary. Of course your use case may dictate otherwise.
Checkout this more general implementation of a
BufferedStream. https://github.com/mjijackson/bufferedstream
:Marco
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