start() held mutex_ and then called loadCache(), which re-locks the same
non-recursive mutex. When a schedule cache file exists and parses (the
normal case for a provisioned kiosk), this self-deadlocks and blocks
SDL_AppInit before the first frame, leaving only a black screen and the
compositor cursor.
Narrow the lock to the member setup so loadCache() can take the lock
itself. Add a regression test that starts with a cached payload present.
Adds two fixtures captured from a running Portal (daily and weekly) and
tests that parse them with the Kiosk API client and evaluate them with the
schedule engine, including adjacency and Sunday->Monday spillover. Proves
the Kiosk consumes actual Portal output with no hand-editing.
Adds api_client support for GET /licenses/{key}/schedule with If-None-Match
and target-payload parsing (version/type/daily/weekly + legacy blocks), an
atomic on-disk schedule cache, a pure schedule engine (half-open blocks,
midnight self-wrap for daily, Sunday->Monday spillover for weekly, invalid
blocks skipped with a warning), and a background ScheduleManager that loads
the cache offline and pulls on boot and every 5 minutes. Adds engine/cache
tests against the shared docs/fixtures, including 304, corrupt cache, and
offline cases.
NeilClack