Joseph Doherty
68aa2e30ab
Last codec-side prerequisite before F13 (NmxClient high-level write wrappers) can land. Two small additions, both wire-byte-direct ports of the .NET reference's MxDataType → MxValueKind lookup logic. mxaccess-codec - MxValueKind::for_data_type(MxDataType, is_array) -> Option<MxValueKind>: fuses NmxWriteMessage.cs:58-86 (TryGetValueKind's 12 base mappings for data types 1..=6 scalar+array) with the two scalar fallbacks the .NET GalaxyTagMetadata.ProjectWriteValue layers on top (GalaxyRepositoryTagResolver.cs:65-69): ElapsedTime → Int32, InternationalizedString → String. Returns None for any other combination — including arrays of those two types and unsupported scalars (ReferenceType, StatusType, Enum, etc.). - 6 new tests covering the base table, both fallbacks, the array-of- unsupported rejection, and the no-mapping branch for ReferenceType / StatusType / Enum / DataQualityType / BigString / Unknown / NoData / End sentinels. mxaccess-galaxy - GalaxyTagMetadata::resolve_write_kind() -> Result<MxValueKind, UnsupportedDataType>: pure delegation to MxValueKind::for_data_type + a typed error carrying (mx_data_type, is_array) for diagnostics. - GalaxyTagMetadata::is_writable() — Ok-side accessor for browse UIs. - UnsupportedDataType public error type (re-exported from lib.rs). - 7 new tests: Double scalar → Float64, Boolean array → BoolArray, ElapsedTime scalar → Int32 (the fallback path), array-of-ElapsedTime rejected, InternationalizedString → String, ReferenceType rejected, Unknown sentinel rejected. Test count delta: 446 -> 459 (+13; codec 215 -> 221, galaxy 49 -> 56). All four DoD gates green. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
mxaccess (Rust port)
Native Rust replacement for AVEVA / Wonderware MXAccess. See ../design/ for
the architectural specification, ../src/ for the .NET reference (the
executable spec), and ../CLAUDE.md for project-wide rules.
Status
M0 — Workspace skeleton. Stub types compile; nothing is implemented yet.
See ../design/60-roadmap.md for the M0–M6 milestone plan.
Layout
rust/
Cargo.toml workspace root
rust-toolchain.toml 1.85 stable
crates/
mxaccess-codec/ pure protocol codec, no I/O
mxaccess-galaxy/ Galaxy SQL resolver (tiberius)
mxaccess-rpc/ DCE/RPC + NTLMv2 + OXID + OBJREF
mxaccess-callback/ INmxSvcCallback RPC server
mxaccess-nmx/ INmxService2 client
mxaccess-asb-nettcp/ net.tcp framing (MC-NMF + MC-NBFX/NBFS)
mxaccess-asb/ IASBIDataV2 client
mxaccess/ async session + Transport trait + public API
mxaccess-compat/ LMXProxyServer-shaped facade
Build
cargo build --workspace
cargo test --workspace
cargo clippy --workspace -- -D warnings
cargo fmt --check
Live probes
. ..\tools\Setup-LiveProbeEnv.ps1
cargo test -p mxaccess --features live -- --ignored
The setup script fetches credentials from Infisical via
wwtools/secrets/Get-Secret.ps1. Never inline plaintext credentials.
License
MIT — see ../LICENSE.