swaits
f867383b12
The mux now acquires an flock-based exclusive lock on the serial port before opening it. This prevents bridges or other processes from directly opening the same device while the mux owns it. The lock is held for the duration of the dongle session and auto-released on disconnect or crash.
53 lines
1.8 KiB
Markdown
53 lines
1.8 KiB
Markdown
# Changelog
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## 0.2.1 — 2026-04-07
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### Fixed
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- **Exclusive serial port lock.** The mux now acquires an `flock`-based
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exclusive lock on the serial port before opening it. This prevents other
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processes (bridges, other mux instances) from directly opening the same
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device while the mux owns it. The lock is held for the duration of the
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dongle session and auto-released on disconnect or crash.
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## 0.2.0 — 2026-04-07
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### Changed
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- Upgraded to `donglora-client` 0.2 (published crate, no more monorepo path dep).
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- Wire-level protocol constants now imported from `donglora_client::protocol::*`.
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### Fixed
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- Repository URL now points to `github.com/donglora/mux-rs`.
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- README links updated (removed stale monorepo paths).
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- Added `rust-version`, `homepage`, and `exclude` to Cargo.toml.
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## 0.1.1 — 2026-04-06
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### Fixed
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- Prevent multiple mux instances from running simultaneously via file-based
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exclusive lock (`fd-lock`); stale sockets from crashed instances are cleaned
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up automatically
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- Clearer error message when TCP port is already in use
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## 0.1.0 — 2026-04-06
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Initial release.
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### Features
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- USB multiplexer daemon: share one DongLoRa dongle with multiple applications
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- Unix domain socket and optional TCP listeners (same COBS-framed protocol)
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- RxPacket broadcast to all connected clients
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- Reference-counted StartRx/StopRx across clients
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- Config locking: first client sets radio config, others must match or fail
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- Auto-reconnect on USB hot-plug with ping verification
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- Bounded per-client send queues (256 frames) with backpressure isolation
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- Smart interception: redundant commands get synthetic responses without
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hitting the dongle
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- Graceful shutdown on SIGINT/SIGTERM with socket cleanup
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- TCP_NODELAY on accepted connections for low-latency frame delivery
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- CLI: `--port`, `--socket`, `--tcp`, `--verbose` options
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