Joseph Doherty
a0fa5bedfd
Adds a thread-local `HashMap<String, u16>` cache inside `compute_name_signature`. Repeated calls with the same name (the hot path inside `MxReferenceHandle::from_names`) skip the `to_lowercase` allocation and the CRC-16/IBM walk entirely. Bounded at 1024 entries per thread; on overflow the cache is cleared rather than evicted LRU — any sane workload re-fills only the names it actively uses. `MxReferenceHandle::from_names` drops from 2 → 0 allocs/op once warm (bench delta in `design/M6-bench-baseline.md` § F52.2). Cold-path behaviour is unchanged: first call with a new name still pays the `to_lowercase` + cache-key `String` allocations. Two new tests pin the cache: cache-hit returns the same value as cold-compute, and cache overflow doesn't break correctness. 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.