Gud Boi
dc72ecdfcd
Race the initial peer handshake against process exit during Trio
child bootstrap so a dead child cannot park its spawning task.
Restore and harden the design originally implemented in `3b0724eb`.
Deats,
- register peer events before provisional nursery publication
- raise `ActorFailure` with child status when process death wins
- prioritize observed death over a simultaneous handshake
- preserve waiter exceptions without `ExceptionGroup` wrapping
- log expected losing-waiter cancellation at debug level
- remove exact failed-startup peer events during backend cleanup
- cover controlled schedules and full Trio backend cleanup
Based-on:
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| .. | ||
| conc-anal | ||
| prompt-io | ||
| tooling-todos | ||
| tpt-backends | ||