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Item 2: when the heartbeat checker marks a device offline it now also disconnects any socket it still holds for it, so DB-offline can't diverge from socket-state into a silent half-open (defensive — the live-socket guard already defers genuinely-live sockets). Item 3: tighten half-open detection WITHOUT reintroducing the TV-WebKit decode-load risk the 30s pong-timeout was chosen for — lower only pingInterval 30s->15s (probe more often), KEEP pingTimeout at 30s. Detection = interval+timeout = 45s (was 60s), and the client inherits these via the handshake so BOTH ends detect a dead peer ~25% sooner. (Deliberately did NOT drop pingTimeout to ~20s: MAXHUB is a video-playing TV-class device and the code comment warns tighter timeouts cause spurious drops under decode load.) Item 4: SO_KEEPALIVE on every accepted connection (lib/tcp-keepalive.js) so a half-open TCP can't persist indefinitely at the OS layer, independent of the app ping. Tests: server closes a non-ponging peer within ~pingInterval+pingTimeout while a ponging peer survives; a device whose transport dies ends offline with its connection torn down; keepalive applied to each accepted connection (and never breaks setup on error). Suite 328/328. |
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| config | ||
| db | ||
| lib | ||
| middleware | ||
| player | ||
| routes | ||
| scripts | ||
| services | ||
| test | ||
| ws | ||
| .gitignore | ||
| config.js | ||
| package-lock.json | ||
| package.json | ||
| server.js | ||
| version.js | ||