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feat: v0.12.0 — live device cache (_LiveCache) in sfm/server.py

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Ports the intelligent-caching branch concept to a plain Python in-memory
implementation — no SQLAlchemy, no extra DB table, no new dependencies.

_LiveCache (threading.Lock + dicts) caches:
  - device info: indefinite, invalidated by POST /device/config
  - events: keyed by (conn_key, device_event_count); count-probe fast path
    (~2s poll+count_events) avoids full downloads when nothing is new
  - monitor status: 30-second TTL, invalidated by monitor start/stop
  - waveforms: permanent per (conn_key, event_index)

All four cached endpoints accept ?force=true to bypass the cache.
Removes sfm/cache.py (SQLAlchemy experiment, now superseded).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Brian Harrison
2026-04-13 15:57:02 -04:00
parent 03d224ccc3
commit 48d7e94c02
3 changed files with 278 additions and 22 deletions
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CLAUDE.md
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Ground-up Python replacement for **Blastware**, Instantel's Windows-only software for
managing MiniMate Plus seismographs. Connects over direct RS-232 or cellular modem
(Sierra Wireless RV50 / RV55). Current version: **v0.10.0**.
(Sierra Wireless RV50 / RV55). Current version: **v0.12.0**.
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