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RustPython/Lib/test
youknowdotandJeong YunWon 70c3f6c06d Align signal wakeup errors and delivery with Python 3.15 (#9199)
* Align signal wakeup error handling with Python 3.15

Assisted-by: OpenAI Codex:model version unavailable

* Preserve CRT error state during signal wakeup writes

Assisted-by: OpenAI Codex:model version unavailable

* Represent nullable Windows CRT parameter handlers safely

Assisted-by: OpenAI Codex:model version unavailable

* Rework signal wakeup error delivery to follow signalmodule.c

- Report pending wakeup write/send errors after Python signal handlers
  and VM pending calls, and re-arm the eval breaker when a handler or
  pending call raises.
- Save and restore errno once in run_signal around trip_signal instead
  of inside each write path; stop preserving _doserrno.
- Add crt_fd::write_noraise and use it for the Unix and Windows wakeup
  writes, sharing the single-write helper with _write.
- Keep pending wakeup errors across fork.
- Revert the suppress_iph handler type change and the unrelated quote
  change in test_signal.

Assisted-by: Claude Code:claude-opus-5-5

* Represent nullable Windows CRT parameter handlers as Option

_set_thread_local_invalid_parameter_handler takes and returns a nullable
function pointer; declare it as Option<InvalidParamHandler> so a NULL
previous handler is restored as None.

Assisted-by: Claude Code:claude-opus-5-5

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Co-authored-by: Jeong YunWon <jeong@youknowone.org>
2026-10-20 20:08:49 +09:00
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