Mon Nov 13 09:58:51 EST 2017

C interface for generic source/sink

Since I'm not quite there yet writing a DSL for this, how to get the
benefit of abstraction on the C level?

The base abstraction should be state machines in the form of state +
read() / write() functions.

I think sm.h already has an abstraction for this.  Work with that.

EDIT: This is just Unix pipe read/write.