Commit Graph

662 Commits (e3955bb62bae4ca87b4ba2a98f233612b0caca5e)

Author SHA1 Message Date
Tyler Goodlet e9422fa001 Fix actor nursery __exit__ handling
When an error is raised inside a nursery block (in the local actor)
cancel all spawned children and ensure the error is properly
unsuppressed.

Also,
- change `invoke_cmd` to `send_cmd` and expect the caller to use
  `result_from_q` (avoids implicit blocking for responses that might
  never arrive)
- `nursery.start()` the channel server block such that we wait for the
  underlying listener to spawn before making outbound connections
- cancel the channel server when an actor's main task completes
  (given that `outlive_main == False`)
- raise subactor errors directly in the local actors's msg loop
- enforce that `treat_as_gen` async functions respond with a caller id
  (`cid`) in each yield packet
2018-07-05 16:21:55 -04:00
Tyler Goodlet 2c637db5b7 Add reliable subactor lifetime control 2018-07-05 16:21:55 -04:00
Tyler Goodlet 5c70b4824f Add remote actor error handling and parent re-raising
Command requests are sent out and responses are handled in a "message
loop" where each command is associated with a "caller id" and multiple
cmds and results are multiplexed on the came inter-actor channel. When
a cmd result arrives it is pushed into a local queue and delivered to the
appropriate calling actor's task. Errors from a remote actor are always shipped
in an "error" packet back to their spawning-parent actor such that any error
in a subactor is always raised directly in the parent. Based on the
first response to a cmd (either a 'return' or 'yield' packet) the caller
side portal will retrieve values by wrapping the local response queue in
either of an async function or generator as appropriate.
2018-07-05 16:21:55 -04:00
Tyler Goodlet 4eb014aedc Use trace level for packet contents 2018-07-05 16:21:55 -04:00
Tyler Goodlet bed7e240de Add uid,event attrs to `Channel` 2018-07-05 16:21:55 -04:00
Tyler Goodlet 2e9cbec93c Add a basic `tractor.run()` test 2018-07-05 16:21:55 -04:00
Tyler Goodlet f36bd0f188 Uhhh make everything better 2018-07-05 16:21:55 -04:00
Tyler Goodlet 03c57ceece Add an initial `tractor` price streaming test 2018-07-05 16:21:55 -04:00
Tyler Goodlet 88e176ceff Add a very rough, minimal actor model system
I'm calling it `tractor` (as in trio-actor) for now.
Lots of work to do still as per the many comments!

Relates to #27
2018-07-05 16:21:55 -04:00
Tyler Goodlet 01119545fc IPC primitives improvements
- Rename the `Client` to `Channel`
- Add better `__repr__()`
- use laddr, raddr instead of sockaddr, peer
- don't allow re-entrant `Channel.connect()` calls
- Make `Channel` an async iterable
2018-07-05 16:21:55 -04:00
Tyler Goodlet 968c385c35 Move ipc types into separate module 2018-07-05 16:21:55 -04:00
goodboy 183c14ba79
Initial commit 2018-07-05 16:01:15 -04:00