Rio is the composable streaming I/O layer on which Riot is built on. It provides the interfaces to define Readers and Writers for customs sources and sinks, and it provides the gluing together.
It also provides common instances of Read/Write for Buffer, Bytes, and Cstruct.
The Read interface defines how to read bytes from a source.
Implementors of this interface are called 'readers'.
Reader are meant to compose nicely with each other.
Note that each call to Rio.read reader may involve a system call.
The Write interface defines objects that are byte-oriented sinks.
Implementors of this interface are called 'writers'.
Writers are meant to compose nicely with each other.