Ninth PR of the alarms-over-gateway epic
(docs/plans/alarms-over-gateway.md). Mirrors PR E.2's .NET surface
on the Go SDK. Depends on PR E.1 (regen, merged).
- Client.AcknowledgeAlarm — context-aware unary call routed through
the existing callContext helper (default 30s timeout). Failures
wrap into *GatewayError; protocol-status non-OK promotes to typed
protocol errors via EnsureProtocolSuccess.
- Client.QueryActiveAlarms — context-streaming wrapper around the
generated MxAccessGateway_QueryActiveAlarmsClient. Caller drives
the stream via Recv(); cancelling ctx releases it.
- types.go re-exports the four new generated types
(AcknowledgeAlarmRequest/Reply, QueryActiveAlarmsRequest,
ActiveAlarmSnapshot) plus the AlarmTransitionKind /
AlarmConditionState enums and the
QueryActiveAlarmsClient stream alias.
- version.go bumps GatewayProtocolVersion 1 → 3 to match the .NET
contract; the const was previously stale and the bump fixes the
pre-existing TestOpenSessionFixtureProtocolVersions failure that
was masked because the fixture had not been regenerated until A.1.
Tests:
- 4 new tests in alarms_test.go — request shape + auth metadata,
nil-request rejection, Unauthenticated mapping, snapshot
streaming over bufconn, filter-prefix passthrough.
- All Go test suites green: cmd/mxgw-go + mxgateway.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Joseph Doherty