import trio import tractor def sync_pause(): tractor.pause_from_sync() @tractor.context async def start_n_sync_pause( ctx: tractor.Context, ): # sync to requesting peer await ctx.started() actor: tractor.Actor = tractor.current_actor() print(f'entering SYNC PAUSE in {actor.uid}') sync_pause() print(f'back from SYNC PAUSE in {actor.uid}') async def main() -> None: from tractor._rpc import maybe_import_gb async with tractor.open_nursery( debug_mode=True, ) as an: # TODO: where to put this? # => just inside `open_root_actor()` yah? await maybe_import_gb() p: tractor.Portal = await an.start_actor( 'subactor', enable_modules=[__name__], # infect_asyncio=True, debug_mode=True, loglevel='cancel', ) # TODO: 3 sub-actor usage cases: # -[ ] via a `.run_in_actor()` call # -[ ] via a `.run()` # -[ ] via a `.open_context()` # async with p.open_context( start_n_sync_pause, ) as (ctx, first): assert first is None await tractor.pause() sync_pause() # TODO: make this work!! await trio.to_thread.run_sync( sync_pause, abandon_on_cancel=False, ) await ctx.cancel() # TODO: case where we cancel from trio-side while asyncio task # has debugger lock? await p.cancel_actor() if __name__ == '__main__': trio.run(main)