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Handle SIGTERM/SIGINT for clean shutdown, add device wrapper script

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sdlamp2 now catches SIGTERM and SIGINT via a sig_atomic_t flag checked
in the main loop, ensuring position and volume are saved before exit.
Previously, a kill signal would terminate instantly without saving.

New tools/rg35xx-wrapper.sh replaces sdlamp2 as the dmenu_ln CMD on
the RG35XX Plus. Skeleton includes placeholders for WiFi hotspot and
power button monitoring (TBD after on-device investigation).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Michael Smith
2026-02-13 15:49:38 +01:00
parent a5b04fcd08
commit 0f653d4395
4 changed files with 88 additions and 4 deletions
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docs/sdlamp2-fsd.md
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@@ -43,6 +43,10 @@ This document specifies the functional requirements for an SDL2 based media play
## 6. Changelog
### 2026-02-13 — Clean shutdown on SIGTERM/SIGINT
- **Signal handling**: sdlamp2 now catches SIGTERM and SIGINT via a `sig_atomic_t` flag checked in the main loop. On signal, the existing cleanup path runs (save position, save volume, close decoder, SDL_Quit) instead of being killed instantly. This ensures position is saved when the system shuts down or the process is terminated by a wrapper script.
### 2026-02-13 — Combine Play/Stop, add Previous Cassette button
- **Play/Stop combined**: The separate Stop and Play buttons are merged into a single toggle button that shows the play icon (▶) when paused and the stop icon (■) when playing.