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Make the CFHost cancel probe wait for delivery and reject completed lookups

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Wait up to 2 s for the cancellation callback instead of one 50 ms run-loop
pass, count only callbacks without stored addresses so a completed lookup
cannot pass as a cancellation, print the failing stage, and have the runner
require the exact success line since Darling can exit zero after a trap.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
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lucannez64andClaude Opus 5.5 authored and Kalah committed 2026-10-16 09:09:28 +02:00
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commit 72093a1b58
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docs/TESTING.md
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@@ -406,7 +406,9 @@ python3 build/runtime/tools/run-riot-native-check.py riot-cfhost-cancel-check
Run against the installed CFNetwork override. Expect
`CFHOST_CANCEL_CHECK cancel callback lifetime repeated pass=1`. The unpatched
library traps in `CFRetain(NULL)`; the runner checks the success marker because
library traps in `CFRetain(NULL)`; the runner requires the exact success line because
Darling can return status zero even when the guest traps. The probe uses localhost
and exercises 100 cancellations with both retained and early-released caller
references, without launching or inspecting Riot.
references, without launching or inspecting Riot. A failure prints
`CFHOST_CANCEL_CHECK fail stage=...`; `unexpected-callback` means a completed
lookup arrived instead of the cancellation.