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684 Commits (12afdb82287f06cbdd3d670ef08b87ccbc041151)

Author SHA1 Message Date
Tyler Goodlet 12afdb8228 Catch and delay errors in the root if debugger is active 2021-06-14 09:25:56 -04:00
Tyler Goodlet 664c3d6b21 Don't shield on root cancel it can causes hangs 2021-06-14 09:25:56 -04:00
Tyler Goodlet d0cf64361a Experiment: only disable SIGINT handling in children 2021-06-14 09:25:56 -04:00
Tyler Goodlet 48017e52ab Don't kill root's immediate children when in debug 
If the root calls `trio.Process.kill()` on immediate child proc teardown
when the child is using pdb, we can get stdstreams clobbering that
results in a pdb++ repl where the user can't see what's been typed. Not
killing such children on cancellation / error seems to resolve this
issue whilst still giving reliable termination. For now, code that
special path until a time it becomes a problem for ensuring zombie
reaps.
 2021-06-14 09:25:56 -04:00
Tyler Goodlet dded1f11ff Add debug example that causes pdb stdin clobbering 2021-06-14 09:25:56 -04:00
Tyler Goodlet caaf15b75a Always raise end of channel ; see if it fixes CI 2021-06-14 09:25:21 -04:00
Tyler Goodlet 6c039f7581 Modernize streaming tests 2021-06-14 09:25:21 -04:00
Tyler Goodlet af94ca9b6a Speedup the dynamic pubsub test 2021-06-14 09:25:21 -04:00
Tyler Goodlet db1e3dc353 Add detailed ``@tractor.context`` cancellation/termination tests 2021-06-14 09:25:21 -04:00
Tyler Goodlet ec8743ebc3 Drop trailing comma 2021-06-14 09:25:21 -04:00
Tyler Goodlet b95c6efbe9 Adjustments for non-frozen context dataclass change 2021-06-14 09:25:21 -04:00
Tyler Goodlet 3988a24e57 Wait for debugger lock task context termination 2021-06-14 09:25:21 -04:00
Tyler Goodlet 2e71914cb7 Fix exception typing 2021-06-14 09:25:21 -04:00
Tyler Goodlet 00c06a00ae Explicitly formalize context/streaming teardown 
Add clear teardown semantics for `Context` such that the remote side
cancellation propagation happens only on error or if client code
explicitly requests it (either by exit flag to `Portal.open_context()`
or by manually calling `Context.cancel()`).  Add `Context.result()`
to wait on and capture the final result from a remote context function;
any lingering msg sequence will be consumed/discarded.

Changes in order to make this possible:
- pass the runtime msg loop's feeder receive channel in to the context
  on the calling (portal opening) side such that a final 'return' msg
  can be waited upon using `Context.result()` which delivers the final
  return value from the callee side `@tractor.context` async function.
- always await a final result from the target context function in
  `Portal.open_context()`'s `__aexit__()` if the context has not
  been (requested to be) cancelled by client code on block exit.
- add an internal `Context._cancel_called` for context "cancel
  requested" tracking (much like `trio`'s cancel scope).
- allow flagging a stream as terminated using an internal
  `._eoc` flag which will mark the stream as stopped for iteration.
- drop `StopAsyncIteration` catching in `.receive()`; it does
  nothing.
 2021-06-14 09:25:21 -04:00
Tyler Goodlet 09a567c857 Specially raise a `ContextCancelled` for a task-context rpc 2021-06-14 09:25:21 -04:00
Tyler Goodlet d7ab01dc20 Expose streaming components at top level 2021-06-14 09:25:21 -04:00
Tyler Goodlet 4ed38281b3 Add a specially handled `ContextCancelled` error 2021-06-14 09:25:21 -04:00
Tyler Goodlet 25c159961b Add a multi-task streaming test 2021-06-14 09:25:21 -04:00
Tyler Goodlet 8f25f2d2fa Avoid mutate on iterate race 2021-06-14 09:25:21 -04:00
Tyler Goodlet 8297e765c1 Only close recv chan if we get a ref 2021-06-14 09:25:21 -04:00
Tyler Goodlet 0090a57681 Add error case 2021-06-14 09:25:21 -04:00
Tyler Goodlet 582eae699a Support no arg to `Context.started()` like trio 2021-06-14 09:25:21 -04:00
Tyler Goodlet b0bcb430bf Fix up var naming and typing 2021-06-14 09:25:21 -04:00
Tyler Goodlet 7eb76e8d97 Only send stop msg if not received from far end 2021-06-14 09:25:21 -04:00
Tyler Goodlet 55bea3ca17 Expose msg stream types at top level 2021-06-14 09:25:21 -04:00
Tyler Goodlet e4216b0691 Add dynamic pubsub test using new bidir stream apis 2021-06-14 09:25:21 -04:00
Tyler Goodlet f0ceb9a811 Use context for remote debugger locking 
A context is the natural fit (vs. a receive stream) for locking the root
proc's tty usage via it's `.started()` sync point. Simplify the
`_breakpoin()` routine to be a simple async func instead of all this
"returning a coroutine" stuff from before we decided that
`tractor.breakpoint()` must be async. Use `runtime` level for locking
logging making it easier to trace.
 2021-06-14 09:25:21 -04:00
Tyler Goodlet 9793851134 Be more pedantic with error handling 2021-06-14 09:25:21 -04:00
Tyler Goodlet 8cbe519d41 Fix typing 2021-06-14 09:25:21 -04:00
Tyler Goodlet 613e613b4c Parametrize with async for style tests 2021-06-14 09:25:21 -04:00
Tyler Goodlet 5ff5e7a6ef Support passing `shield` at stream contruction 2021-06-14 09:25:21 -04:00
Tyler Goodlet a166a62b31 Add basic test set 2021-06-14 09:25:21 -04:00
Tyler Goodlet 265120afd9 Cancel scope on stream consumer completion 2021-06-14 09:25:21 -04:00
Tyler Goodlet ae6aa75bcd Expose `@context` decorator at top level 2021-06-14 09:25:21 -04:00
Tyler Goodlet 0027115589 Add initial bi-directional streaming 
This mostly adds the api described in
https://github.com/goodboy/tractor/issues/53#issuecomment-806258798

The first draft summary:
- formalize bidir steaming using the `trio.Channel` style interface
  which we derive as a `MsgStream` type.
- add `Portal.open_context()` which provides a `trio.Nursery.start()`
  remote task invocation style for setting up and tearing down tasks
  contexts in remote actors.
- add a distinct `'started'` message to the ipc protocol to facilitate
  `Context.start()` with a first return value.
- for our `ReceiveMsgStream` type, don't cancel the remote task in
  `.aclose()`; this is now done explicitly by the surrounding `Context`
   usage: `Context.cancel()`.
- streams in either direction still use a `'yield'` message keeping the
  proto mostly symmetric without having to worry about which side is the
  caller / portal opener.
- subtlety: only allow sending a `'stop'` message during a 2-way
  streaming context from `ReceiveStream.aclose()`, detailed comment
  with explanation is included.

Relates to #53
 2021-06-14 09:25:21 -04:00
Tyler Goodlet 44d7988204 New docs theme hotfix 2021-06-14 08:10:59 -04:00
goodboy e98302212a
Merge pull request #211 from goodboy/new_docs_polish 
New docs theme, readme actors rant.
 2021-06-14 07:33:02 -04:00
Tyler Goodlet 0301d105dd Better rant flow as per suggestions 2021-06-14 06:41:10 -04:00
Tyler Goodlet 4ee7db338d Fill out the rant a bit more 2021-06-14 06:31:16 -04:00
Tyler Goodlet 558d546c8f Bump readme for #210 2021-06-14 06:31:16 -04:00
Tyler Goodlet 5528a4eb45 Attempt configuring sphinx-book-theme 2021-06-14 06:31:16 -04:00
Tyler Goodlet fb23a9d8d4 Try out sphinx-book-theme 2021-06-14 06:31:16 -04:00
goodboy f48548ab94
Merge pull request #197 from goodboy/drop_run 
Drop run
 2021-05-07 12:02:23 -04:00
Tyler Goodlet 73e123bac7 Fix line length 2021-05-07 11:21:40 -04:00
Tyler Goodlet 2b4cf59ee1 Drop sleep 2021-05-07 11:21:40 -04:00
Tyler Goodlet 0551756e22 Use trio.run() in windows tests 2021-05-07 11:21:40 -04:00
Tyler Goodlet 5ca963148e Disable leftover debug mode 2021-05-07 11:21:40 -04:00
Tyler Goodlet 4798d3b5db Drop lingering rpc_module_paths refs 2021-05-07 11:21:40 -04:00
Tyler Goodlet 247483ee93 Drop run and rpc_module_paths from streaming tests 2021-05-07 11:21:40 -04:00
Tyler Goodlet 9e64161538 Drop run and rpc_module_paths from rpc tests 2021-05-07 11:21:40 -04:00