Joseph Doherty
d03bd04ef5
rust / build / test / clippy / fmt (push) Has been cancelled
Extends tests/add_monitored_items_request_capture.rs with a manual binary-header walk that prints every pre-interned string + its wire id. The captured request's binary header pre-declares **23 strings** covering the entire DataContract field set: wire-id 1 http://ASB.IDataV2:addMonitoredItemsIn wire-id 3 AddMonitoredItemsRequest wire-id 5 SubscriptionId wire-id 7 Items wire-id 9 http://schemas.datacontract.org/.../ASBIDataV2Contract wire-id 11 MonitoredItem wire-id 13 activeField wire-id 15 activeFieldSpecified wire-id 17 bufferedField wire-id 19 itemField wire-id 21 contextNameField wire-id 23 idField wire-id 25 idFieldSpecified wire-id 27 nameField wire-id 29 referenceTypeField wire-id 31 typeField wire-id 33 sampleIntervalField wire-id 35 timeDeadbandField wire-id 37 timeDeadbandFieldSpecified wire-id 39 userDataField wire-id 41 lengthField wire-id 43 payloadField wire-id 45 valueDeadbandField That gives F34's binary-builder rewrite the exact dict-id mapping to target — every MonitoredItem child can be emitted as a DictionaryStatic(odd-id) reference instead of an inline string, matching WCF's compression. The "RequireId" mystery from the earlier inline-name decode is also resolved: the wire body has NO `RequireId` element at the bottom — the trailing `Inline("referenceTypeField")` was a dict-id wraparound or auto-intern artifact, not actual content. design/followups.md F34 updated with the full ground-truth header, plus a refined "Resolves when" pointing at the underlying `nbfx.rs::decode_tokens` auto-intern semantics. The current codec's doc comment ("the codec doesn't auto-intern") is correct for raw [MC-NBFX] but wrong for WCF binary messages where the writer auto-interns by convention; that's the structural fix the F34 binary rewrite depends on. No code-path change in this commit beyond the test improvements. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
design/ — Rust port architectural plan
This folder is the design contract for the Rust replacement of AVEVA/Wonderware MXAccess. It is the gap between the .NET reference in src/ and the Rust crates that will be written under a sibling rust/ workspace (per CLAUDE.md).
The folder is structured as a small set of focused documents. Read in order; each builds on the previous.
| File | Purpose |
|---|---|
00-overview.md |
Mission, two-layer goal, architectural principles, non-goals |
10-raw-layer.md |
Byte-accurate raw MXAccess layer (codec + transport + session) |
20-async-layer.md |
Idiomatic Tokio async layer on top of the raw layer |
30-crate-topology.md |
Cargo workspace, crates, dependencies, build/test commands |
40-protocol-invariants.md |
Bill of materials: IIDs, opnums, envelope/handle bytes |
50-error-model.md |
MxStatus, error types, panic/cancellation policy |
60-roadmap.md |
Milestones M0..M6, validation strategy |
70-risks-and-open-questions.md |
Parity gaps, unproven flows, cross-platform constraints |
dependencies.md |
Cross- and within-milestone parallelism map; agent budget per phase |
review.md |
Adversarial review log (BLOCKER/MAJOR/MINOR/NIT findings, all resolved) |
prompt.md |
/loop driver prompt for autonomous M2–M6 execution |
followups.md |
Open / resolved deferred work items; auto-triaged by prompt.md Step 0 (created on first /loop run if missing) |
The design is grounded in the .NET reference at src/ and the protocol artifacts in docs/, analysis/, and captures/. Do not introduce protocol behavior in these documents that is not already proven in the reference. When adding a new claim about wire format, cite either:
- a
.csfile path insrc/MxNativeCodec/,src/MxNativeClient/, orsrc/MxAsbClient/, or - a
docs/*.mdspec file, or - a
captures/0NN-frida-*directory oranalysis/frida/*.tsvrow.
This folder is documentation, not code. When the Rust workspace is created, the design here is the contract it must satisfy. When evidence in captures/ invalidates a design decision here, update the design first, then the code.
Reading order
- New contributor: 00 → 30 → 10 → 40 → 20 → 50 → 60 → 70.
- Protocol question: 40 first, then the relevant section of 10.
- API question: 20 first, then 50.
- Planning a milestone: 60 first, cross-reference 70 for blockers.
- Scheduling concurrent work:
dependencies.mdfor the per-phase parallelism map. - Driving M2–M6 autonomously via
/loop:prompt.md(and thefollowups.mdtriage log it maintains).