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Joseph Doherty a2b8989cbf [M5] mxaccess-asb: F25 step 2 — per-operation request body codecs

Adds the IAsbCustomSerializableType binary fast-path + per-operation
request-body NBFX-token builders. RegisterItems and UnregisterItems
now compose end-to-end through SoapEnvelope + encode_envelope to a
byte stream that round-trips back to the original ItemIdentity array.

Three pieces:

1. F21 NBFX gains `Bytes8/16/32` text records (records 0x9E/0xA0/0xA2
   plus +1 WithEndElement variants). WCF's `XmlDictionaryWriter.
   WriteBase64` emits these in binary form — not actual base64 text —
   so they're required for the `<ASBIData>` content.

2. `mxaccess-asb::contracts::ItemIdentity` ports `AsbContracts.cs:533-633`:
   * Wire layout: u16 kind + u16 reference_type +
     AsbBinary.WriteUnicodeString(Name) + AsbBinary.WriteUnicodeString
     (ContextName) + u64 Id + u8 IdSpecified.
   * `AsbBinary.WriteUnicodeString` per cs:1622-1633: u32 byte-length
     + UTF-16LE bytes; null/empty collapse to a 4-byte zero header.
   * `encode_item_identity_array` / `decode_item_identity_array`
     mirror `WriteArrayToStream` — 4-byte int32 count + each
     element's `WriteToStream` output. Per `AsbDataCustomSerializer`
     at cs:1583-1591.
   * `absolute_by_name(...)` convenience constructor matching
     `MxAsbDataClient.CreateAbsoluteItem` at cs:172-194.

3. `mxaccess-asb::operations` builds SOAP body NBFX token streams:
   * `build_register_items_request_body(items, require_id, register_only)`
     — RegisterItems contract per cs:119-143.
   * `build_unregister_items_request_body(items)` — UnregisterItems
     per cs:145-159.
   * Internal `BodyField` helper assembles the wire shape:
     `<RegisterItemsRequest xmlns="urn:msg.data.asb.iom:2">
        <Items><ASBIData>{Bytes(payload)}</ASBIData></Items>
        <RequireId>true|false</RequireId>
        <RegisterOnly>true|false</RegisterOnly>
      </RegisterItemsRequest>`

15 new tests cover:
* ItemIdentity round-trip (default, with id, unicode name).
* AsbBinary unicode-string null/empty/value semantics.
* Byte-layout pinning (21 bytes for default ItemIdentity, le-int32
  array count).
* ItemIdentity array round-trip.
* `<ASBIData>` Bytes record round-trip across NBFX widths
  (Bytes8/16/32 selected by length).
* RegisterItems body → SoapEnvelope → encode → decode → recover the
  ItemIdentity array end-to-end.
* RequireId / RegisterOnly Bool wire form.
* UnregisterItems body uses correct outer element name and omits
  the RegisterItems-only fields.

Stubbed for next F25 iteration: per-operation Read / Write /
PublishWriteComplete / CreateSubscription / AddMonitoredItems /
DeleteMonitoredItems / Publish builders, response decoders, and the
`AsbClient` network loop.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-05-05 11:24:19 -04:00

mxaccess

[M4] mxaccess: wire MxValue overloads + shutdown(timeout) shim

2026-05-05 10:29:54 -04:00

mxaccess-asb

[M5] mxaccess-asb: F25 step 2 — per-operation request body codecs

2026-05-05 11:24:19 -04:00

mxaccess-asb-nettcp

[M5] mxaccess-asb: F25 step 2 — per-operation request body codecs

2026-05-05 11:24:19 -04:00

mxaccess-callback

[M2] mxaccess-callback: tokio TCP exporter (wave 3 main)