On Sep 9, 2017 9:07 AM, "Nick Coghlan" <ncoghlan@gmail.com> wrote:

To immediately realise some level of efficiency benefits from the
shared memory space between the main interpreter and subinterpreters,
I also think these low level FIFOs should be defined as accepting any
object that supports the PEP 3118 buffer protocol, and emitting
memoryview() objects on the receiving end, rather than being bytes-in,
bytes-out.

Is your idea that this memoryview would refer directly to the sending interpreter's memory (as opposed to a copy into some receiver-owned buffer)? If so, then how do the two subinterpreters coordinate the buffer release when the memoryview is closed?

-n