swaits
77addfa698
When a mux socket file exists, connect(None, timeout) and try_connect() now commit to the mux — returning an error if unreachable instead of silently falling through to USB serial. This prevents a race condition where a client could steal the serial port from the mux during reconnect. Callers with explicit port = Some(...) are unaffected.
69 lines
2.9 KiB
Markdown
69 lines
2.9 KiB
Markdown
# Changelog
|
|
|
|
## 0.2.1 — 2026-04-07
|
|
|
|
### Fixed
|
|
|
|
- **`connect()` no longer falls through from mux to USB serial.** If a mux
|
|
socket file exists, `connect(None, timeout)` and `try_connect(timeout)` now
|
|
commit to the mux and return an error if the mux is unreachable — instead of
|
|
silently bypassing it and grabbing the USB port directly. This prevents a
|
|
race condition where a client could steal the serial port from the mux during
|
|
reconnect. Callers with explicit `port = Some(...)` are unaffected.
|
|
|
|
## 0.2.0 — 2026-04-07
|
|
|
|
### Features
|
|
|
|
- **Ping-on-connect validation** — all connect functions automatically ping the
|
|
device after connecting and reject non-DongLoRa devices within 200ms. No more
|
|
accidentally talking LoRa protocol to an Arduino.
|
|
- **`try_connect(timeout)`** — non-blocking alternative to `connect()`. Returns
|
|
an error immediately if no DongLoRa device is found instead of blocking
|
|
indefinitely.
|
|
- **USB-UART bridge chip fallback** — `find_port()` now detects boards using
|
|
CP2102, CH9102, CH340, or FT232R bridge chips (validated via ping).
|
|
- **Payload size validation** — `transmit()` rejects payloads exceeding 256
|
|
bytes with a clear error before hitting the wire.
|
|
- **`ErrorCode` implements `std::error::Error`** — usable in error chains.
|
|
|
|
### Breaking changes
|
|
|
|
- Wire-level tag constants (`CMD_TAG_*`, `RESP_TAG_*`, `ERROR_INVALID_CONFIG`)
|
|
removed from the top-level re-exports. Access them via
|
|
`donglora_client::protocol::*` if needed.
|
|
- `connect()` and friends now validate the device on connect. Code that
|
|
previously connected to non-DongLoRa serial devices will now get an error.
|
|
|
|
### Fixes
|
|
|
|
- Fixed repository URL in crate metadata.
|
|
- `drain_rx` no longer swallows the original error if timeout restore also fails.
|
|
- Removed dead `firmware/PROTOCOL.md` reference from docs.
|
|
|
|
## 0.1.0 — 2026-04-06
|
|
|
|
Initial release.
|
|
|
|
### Features
|
|
|
|
- High-level `Client<T>` with send/recv and command helpers (ping, set_config,
|
|
start_rx, stop_rx, transmit, get_config, get_mac, display_on, display_off)
|
|
- COBS wire framing via `ucobs` (matches firmware implementation)
|
|
- Auto-detection connection: TCP mux, Unix socket mux, direct USB serial
|
|
- Bounded RX packet buffering (256 packets, FIFO eviction)
|
|
- `FrameReader` accumulator for streaming byte sources
|
|
- USB device discovery by VID:PID with blocking wait
|
|
|
|
### Resilience
|
|
|
|
- Cross-platform timeout handling: `TimedOut` (Windows) and `WouldBlock`
|
|
(Linux/macOS) both treated as clean timeouts in `read_frame`
|
|
- `EINTR`/`Interrupted` signals retried automatically in `read_frame`
|
|
- `drain_rx` always restores the original timeout, even on I/O errors
|
|
- TCP mux connections use `connect_timeout` (bounded by caller's timeout)
|
|
- Mux sockets set both read and write timeouts
|
|
- `SerialTransport` tracks timeout accurately for save/restore
|
|
- Unexpected unsolicited frames logged via `tracing::warn` instead of silently
|
|
discarded
|