Tyler Goodlet 56d3f6cffb Add a working arbiter registry system ... Every actor now registers (and unregisters) with the arbiter at startup/teardown. For now the registry is stored in a plain `dict` in the arbiter's memory. This makes it possible to easily coordinate actors started as plain Python processes or via `multiprocessing`. A whole smörgåsbord of changes was required to accomplish this: - factor handshake steps into a func - track *every* channel connected to an actor including multiples to the same remote peer (may want to optimize this later) - handle `trio.ClosedStreamError` gracefully in the message loop - add an `open_portal` asynccontextmanager which handles channel creation, handshaking, and spawning a bg task for msg processing - add a `start_actor()` for starting in-process actors directly - add working `get_arbiter()` and `find_actor()` public routines - `_main` now tries an anonymous channel connect to the stated arbiter sockaddr and uses that to determine whether to crown itself		2018-07-05 16:21:55 -04:00
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ipc.py	Add StreamQueue.connected()	2018-07-05 16:21:55 -04:00
tractor.py	Add a working arbiter registry system	2018-07-05 16:21:55 -04:00