v0.3.0

This release completes the Transport Backends milestone, delivering pluggable low-latency transport backends, a comprehensive end-to-end integration test suite, and critical server bug fixes.

Highlights

Pluggable transport architecture (#14, #20–#25)

• Transport trait family — Transport/Connection/Listener (Send+Sync) for multi-threaded runtimes, plus LocalTransport/LocalConnection/LocalListener (!Send) for thread-per-core backends.
• Configurable tunables — max_frame_size, connect_timeout, SO_RCVBUF/SO_SNDBUF via socket2, backend-specific BindConfig/ConnectConfig types.
• Default backend — tcp-tokio remains the default; all others are opt-in via cargo features.

New transport backends

Backend	Crate	Issue	Status
io_uring TCP	ironsbe-transport (feature tcp-uring)	#15	Production-ready on Linux 5.11+
AF_XDP	ironsbe-transport (feature xdp)	#16, #28	Pure-Rust userspace TCP stack via xsk-rs + smoltcp
DPDK	ironsbe-transport-dpdk	#17, #36	AF_XDP PMD mode, bindgen FFI, Linux-only opt-in
RDMA/ibverbs	ironsbe-transport-rdma	#18, #38, #39, #48	Two-sided SEND/RECV over Queue Pairs via RDMA CM, SoftRoCE tested

RDMA backend details (#38, #39, #46, #48, #49, #50, #51, #52)

• RdmaListener — async accept via tokio::io::unix::AsyncFd on the CM event channel fd (non-blocking).
• RdmaConnection — client-side connect flow (resolve_addr → resolve_route → connect), all async.
• CQ drain — send() drains pending SEND completions before posting, with a recv-completion inbox for RECV WCs encountered during drain. Watermarks derived from CQ_CAPACITY and RECV_DEPTH.
• Real peer_addr() / local_addr() — extracted from (*cm_id).route.addr via sockaddr_to_socket_addr helper.
• Loopback integration tests on SoftRoCE (round-trip, peer_addr, async yield).

Server bug fixes (#40, #41, #42, #44, #45)

• #42 — Shutdown / CloseSession propagation — tokio_util::sync::CancellationToken with parent/child semantics. Shutdown cancels every session; CloseSession(id) cancels exactly one. Cooperative cancellation via a third select! branch in handle_session, preserving on_session_end cleanup.
• #40 — Broadcast — ServerCommand::Broadcast now iterates a per-session Arc<RwLock<HashMap<u64, UnboundedSender>>> and retains live senders.
• #41 — send_to — SessionResponder::send_to(target, msg) resolves target against the live session table. Returns SendError for unknown or closed targets.
• Session slot leak (#32) — CloseSession command fired by spawned tasks on disconnect, freeing SessionManager slots.

End-to-end integration test suite (#43)

26 tests across 6 files exercising the full Server + Client lifecycle over tcp-tokio:

• Round-trip framing (single, 100x sequence, 60 KB, custom 256 KB max_frame_size, oversized rejection, sub-header on_error)
• Session lifecycle (on_session_start/on_session_end callbacks, SessionCreated/SessionClosed events, monotonic IDs)
• Multi-client (10 concurrent clients, max_connections cap, session count tracking)
• Reconnect state machine (connect timeout, reconnect after server starts, max_reconnect_attempts)
• Shutdown + handle surfaces (Server shutdown, Client disconnect, wait_event, Broadcast, send_to, close_session)
• MessageDispatcher routing (template ID dispatch + fallback)

All waits are event-driven with explicit deadlines — no fixed sleeps.

Breaking changes

• RdmaConfig::bind_addr renamed to RdmaConfig::addr (#51) — used for both bind and connect.
• Transport trait split: Transport (Send+Sync) vs LocalTransport (!Send) — existing tcp-tokio users are unaffected (it implements Transport).
• ServerBuilder / ClientBuilder now take generic transport type parameter T: Transport (defaults to DefaultTransport when tcp-tokio feature is enabled).
• New workspace dependency: tokio-util features expanded to ["codec", "rt"] for CancellationToken.

Crates published

Crate	Version
ironsbe-core	0.3.0
ironsbe-derive	0.3.0
ironsbe-schema	0.3.0
ironsbe-codegen	0.3.0
ironsbe-channel	0.3.0
ironsbe-transport	0.3.0
ironsbe-server	0.3.0
ironsbe-client	0.3.0
ironsbe-marketdata	0.3.0
ironsbe-bench	0.3.0
ironsbe	0.3.0

ironsbe-transport-dpdk and ironsbe-transport-rdma are not published to crates.io — they require Linux-only system libraries (libdpdk-dev, libibverbs-dev + librdmacm-dev) and are excluded from the default workspace members.

Full changelog

v0.2.2...v0.3.0

v0.2.2

Fix ironsbe-client busy loop (#19)

Changes

• ironsbe-client 0.2.1 → 0.2.2
• ironsbe-server 0.2.1 → 0.2.2

See #19 for details.

v0.2.1

What's Changed

Bug Fixes

• fix(codegen): Scope group code generation to message-specific modules to avoid duplicate definitions (#6)
• fix(lint): Improve to_snake_case handling of acronyms and underscores (#11, closes #7, supersedes #8)
  • REDUCE_ONLY → reduce_only (was r_e_d_u_c_e__o_n_l_y)
  • MDEntryPx → md_entry_px (was m_d_entry_px)
  • Fix clippy::unnecessary_map_or lint
• test: Add regression tests for issue #7 (underscore set choice names)

Crates Published

All 11 workspace crates published to crates.io:
ironsbe, ironsbe-core, ironsbe-schema, ironsbe-codegen, ironsbe-derive, ironsbe-channel, ironsbe-transport, ironsbe-server, ironsbe-client, ironsbe-marketdata, ironsbe-bench

Full Changelog: v0.2.0...v0.2.1

v0.2.0

What's Changed

• feat(codegen): Complete enum, set, and composite type code generation by @j-b-layerv in #3
• chore: bump version to 0.2.0 by @joaquinbejar in #4

New Contributors

• @j-b-layerv made their first contribution in #3
• @joaquinbejar made their first contribution in #4

Full Changelog: v0.1.2...v0.2.0

v0.1.2

Bump version to 0.1.2 across workspace and internal crates.

v0.1.1

Add extensive unit tests across crates to enhance coverage and valida…