Joseph Doherty
4e76b44391
Adds `write_message::encode_to_bytes_mut` (and the timestamped variant) returning a freshly-allocated `BytesMut`. Allocation count is identical to `encode` (2 allocs/op for fixed-width scalars); the benefit is downstream — consumers can `BytesMut::split_to` / `freeze` and forward the body bytes to a wire-level sink without an intermediate copy. The body builders (`encode_boolean` / `encode_fixed` / `encode_variable` / `encode_array`) were refactored to fill a pre-sized `&mut [u8]` rather than each allocating their own `Vec<u8>`. The dispatcher computes the body size up front via small `*_body_size` helpers and resizes the destination buffer (Vec or BytesMut) once. This is also the prerequisite refactor for F52.3. Bench delta in `design/M6-bench-baseline.md` § F52.1; existing `encode` row unchanged at 2 allocs/op. All 265 round-trip tests unchanged. 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.