Files
autopilot/crates/telemetry_stream/Cargo.toml
T
Oleksandr Bezdieniezhnykh ff790bd639
ci/woodpecker/push/build-arm Pipeline failed
[AZ-675] telemetry_stream Tonic gRPC server + per-client lossy queue
Pins operator-link transport to gRPC server-streaming (closes
architecture Q2 in favour of gRPC). Adds first-time tonic / prost /
tonic-build infrastructure to the workspace; uses
protoc-bin-vendored so neither dev machines nor CI need system
protoc installed.

Design — back-pressure lives in the per-topic tokio::sync::broadcast
ring, drained directly by the tonic-streamed response via
BroadcastStream + StreamMap. No intermediate mpsc buffer that could
absorb back-pressure invisibly. Slow client overrun -> Lagged(n)
event -> per-(client_id, topic) drop counter incremented; healthy
clients on the same topic are unaffected.

Service surface — Subscribe(SubscribeRequest) -> stream
TelemetryMessage; five topics (TelemetrySample, GimbalState,
DetectionEvent, MovementCandidate, MapObjectsBundle); empty topics
list defaults to subscribe-all; empty client_id rejected; stream
drop decrements subscribed_clients via StreamGuard. TelemetrySink
push_detections is now real; push_frame still NotImplemented(AZ-676
video path).

Tests — 6 unit + 5 integration (AC-1..AC-3 via in-process gRPC
client, plus subscribe-all default + empty-client_id rejection).
Clippy on telemetry_stream clean.

Pre-existing mission_executor ac3 test polling race surfaces more
reliably under the new tonic build pressure; documented as
_docs/_process_leftovers/2026-05-20_mission_executor_ac3_flake.md
and unchanged by this batch.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-05-20 12:44:39 +03:00

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TOML

[package]
name = "telemetry_stream"
version = "0.1.0"
edition.workspace = true
rust-version.workspace = true
license.workspace = true
publish.workspace = true
authors.workspace = true
build = "build.rs"
[dependencies]
shared = { workspace = true }
tokio = { workspace = true }
tokio-stream = { workspace = true }
tracing = { workspace = true }
async-trait = { workspace = true }
thiserror = { workspace = true }
serde = { workspace = true }
serde_json = { workspace = true }
prost = { workspace = true }
tonic = { workspace = true }
tonic-prost = { workspace = true }
parking_lot = { workspace = true }
uuid = { workspace = true }
chrono = { workspace = true }
[build-dependencies]
tonic-prost-build = { workspace = true }
protoc-bin-vendored = { workspace = true }
[dev-dependencies]
tokio = { workspace = true, features = ["test-util"] }