Commit Graph
3 Commits
Author SHA1 Message Date
6b0b23ef69 fix(audio,game): Tier A bug-sweep fixes (S-01, F-04, F-08, F-09, S-02)
Five confirmed findings from the 2026-06-22 adversarial bug sweep:

- S-01: clamp PipeWire capture chunk size to the mapped slice before
  indexing, so a bad reported size can't panic (= process abort) from
  the RT capture callback. Extracted testable for_each_capture_sample.
- F-04: reserve ring occupancy before publishing a frame on the PipeWire
  playback path (mirrors the cpal fix), preventing the RT consumer from
  popping an uncounted sample and wrapping fill_gauge to usize::MAX,
  which permanently wedged mixer pacing. Extracted publish_frame.
- F-09: GameDetector::spawn now returns io::Result and retains its
  JoinHandle (joined on Drop); core fuses a closed watch receiver to
  None via next_game_change so a dead detector can't busy-loop select!.
- F-08: collision-free recording paths — Recorder::create and the
  multitrack session dir use create_new/create_dir with bounded suffix
  retry, so two recordings in the same second no longer truncate the
  first.
- S-02: bound the Windows SteamPath registry read (<=4 KiB, even length,
  re-checked type/returned length) before allocating/decoding.

403 lib tests pass (+6), clippy --all-targets clean. Implemented by
Codex, reviewed + gates re-run by senior.

Co-Authored-By: Codex <codex@openai.com>
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-22 03:34:29 -04:00
mollusk fad65a4fcf fix(game): detect live Steam appid via /proc SteamAppId, not stale registry.vdf
windows-build / windows-build (push) Has been cancelled
cargo-deny / cargo-deny (push) Has been cancelled
Field test found Steam games were never detected on Linux. Root cause:
Steam rewrites ~/.steam/registry.vdf only on SHUTDOWN, so its RunningAppID
is stale (often absent) while a game is actually running — polling it can
never see the live game.

Fix: on Linux, read the live appid from the running game's environment
(SteamAppId in /proc/<pid>/environ, the var Steam exports to every game
process — the same signal MangoHud uses; readable for our own processes).
registry.vdf stays as a best-effort fallback. Windows still reads the real
registry's RunningAppID, which IS updated live there. Other Unix keeps the
registry.vdf fallback.

Pure parse_steam_app_id_from_environ() is unit-tested (nonzero filter,
absent, substring-not-fooled, garbage). Also fixes a latent bug in the
first draft where a single non-UTF8 SteamAppId value would abort the whole
scan via ? instead of skipping.

396 lib tests, clippy --all-targets clean.
2026-06-21 16:11:17 -04:00
molluskandClaude Opus 4.8 e31d3db986 feat(game): Steam + process-scan OS adapters
Step 2-3 of game detection (game-presence-plan.md). The OS edges feeding
the pure seams from the previous commit.

- src/game/steam.rs: SteamProbe — reads the live RunningAppID and resolves
  it to a name via appmanifest_<id>.acf (no binary appinfo.vdf). Pure parse
  fns (parse_running_app_id / parse_library_paths / parse_app_name) over
  file contents are unit-tested incl. current+legacy libraryfolders shapes,
  escaped Windows paths, empty/missing names, and garbage. Roots discovered
  across native/Flatpak/Snap (Linux) and the registry (Windows); libraries
  and resolved names cached + mtime-invalidated so the 3s poll doesn't
  rescan. File reads byte-capped.
- src/game/scan.rs: native running-process enumeration — /proc (exe symlink,
  comm fallback) on Linux, Toolhelp on Windows — feeding the pure
  match_processes. No sysinfo dep (D7).
- Cargo.toml: windows-sys as a direct Windows-only dep for the registry +
  Toolhelp FFI. No NEW crate — it was already in the lockfile transitively
  via cpal/rfd, so the audit surface is unchanged.

391 lib tests (+5). Linux: build + clippy --all-targets clean. Windows FFI
signatures verified against windows-sys 0.61 source (one *const vs *mut
lpReserved fixed) but NOT yet cross-compiled — defer to the post-UI Windows
build cycle.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-21 15:19:53 -04:00