3 Commits

Author SHA1 Message Date
raphael 28dac8e9c8 I2: Router::dispatch_with_s9 helper + end-to-end S9F3/F5 tests
The S9F3/F5 fallback was previously inlined in apps/secs_server.cpp;
this commit lifts it onto Router as a template helper and adds two
focused tests asserting the wire behaviour against a real back-to-
back HSMS Connection pair.

  template <typename EmitFn, typename HeaderProvider>
  std::optional<Message> dispatch_with_s9(emit, header, msg);

The helper does the has_handler / has_handler_for_stream check and
calls the supplied emit function with S9F3 (unknown stream) or S9F5
(unknown function in known stream).  The header_provider returns the
optional MHEAD bytes — keeping the helper free of any direct
Connection coupling.

Tests:
  - SUT registered only for S1F1; peer sends S1F5 -> SUT replies
    S9F5 to the peer.
  - SUT registered only for S1F1; peer sends S7F19 -> SUT replies
    S9F3 to the peer.

Closes Tranche I — SML parser and the auto-S9F* fallback closeout
both verified end-to-end.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-06-08 03:58:03 +02:00
raphael 65db38d9f2 100%/B: S9F3/F5/F11 emission + Router fallback
tests / build-and-test (push) Failing after 31s
Closes the S9 stream.  Every documented protocol-error condition is now
auto-emitted by Connection (with the assist of one Router predicate),
without involving the application.

Router (include/secsgem/gem/router.hpp)
  Adds two predicates: has_handler(stream, function) and
  has_handler_for_stream(stream).  Lets the wrapping message handler
  decide whether an unhandled message is "unknown stream" (S9F3) or
  "unknown function in a known stream" (S9F5).

Connection (include/secsgem/hsms/{connection.hpp, connection.cpp})
  - emit_s9() goes public so the message_handler can call it.
  - New current_header() accessor returns the HSMS header of the
    primary currently being dispatched.  Non-null only inside the
    on_message_ call; cleared on the way out.
  - handle_data sets current_header_ before invoking on_message_.
  - on_length on oversized frame: synthesizes a 10-byte MHEAD whose
    first 4 bytes are the offending length prefix, emits S9F11, and
    sets close_after_flush so the S9F11 goes out before the socket
    closes.

Server (apps/secs_server.cpp)
  The conn->set_message_handler lambda now wraps router.dispatch.  For
  any inbound primary without a registered handler, it captures the
  MHEAD via current_header() and emits either S9F3 (stream unknown) or
  S9F5 (function unknown).  The wrapper still returns the Router's
  reply (SxF0 for primaries with W) so transactional semantics are
  preserved.

COMPLIANCE.md
  Error Messages row flips from 🟡 to .  S9F3/F5/F11 rows in the
  coverage matrix flip from 🟡 to .  Each row in the matrix now
  states its trigger condition explicitly.  Drops the
  "Finish S9 wiring" bullet from the "what would 100% take" list.

Verified
  - Tests: 78 cases / 454 assertions still pass (no behavioural change
    on the happy path; new emission paths fire only on protocol errors
    that the demo doesn't induce).
  - Build clean.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-06-07 01:57:35 +02:00
raphael b871cd9da2 Table/YAML-driven refactor (Layer 1 start)
Move equipment capabilities and the E30 control state machine out of C++
code and into YAML data files; introduce a Router for SECS dispatch;
consolidate small files.

Behavioural changes: none.  Demo identical (15 SxFy transactions +
3 equipment-initiated primaries), 67 test cases / 384 assertions still
all green.  Structural changes only.

Why
---

The previous server.cpp held the equipment data dictionary (3 SVIDs,
2 ECIDs, 3 CEIDs, 2 alarms, 2 recipes, 4 host commands) as imperative
C++ in a 50-line `populate()` function, and routed inbound messages
through a 150-line if-ladder.  Adding a new SVID required a recompile.
Adding a new state transition required editing two switch statements
(`operator_*` and `on_host_request_*`).  The control state machine's
behavioural rules were spread across imperative code in two methods.

This is exactly what implementation_plan.md calls out as the wrong
shape: behavioural rules should live in versioned data, and every
runtime/test/analyzer should read from that data rather than re-encode
it.  This commit starts that move.

What's new
----------

data/equipment.yaml
  Equipment data dictionary.  Declarative SVIDs / ECIDs / CEIDs /
  alarms / recipes / host commands.  Host commands carry their HCACK
  ack code plus optional `emit_ceid` and `set_alarm` side-effects.
  Adding a new SVID or command is a YAML edit, no recompile.

data/control_state.yaml
  The E30 §6.2 control state transition table as data.  Each row is
  (from, on) -> (to [, then] [, ack]).  `then` chains an auto-advance
  through the transient AttemptOnline state.  The previous
  imperative switch is gone.

include/secsgem/config/loader.hpp + src/config/loader.cpp
  yaml-cpp-backed loader.  `load_control_state(path)` returns a
  ControlTransitionTable + initial state; `load_equipment(path, model)`
  populates the EquipmentDataModel and returns the device descriptor
  (id, MDLN, SOFTREV, optional auto-emit CEID).  Surfaces config
  errors with file path + field name via ConfigError.

include/secsgem/gem/router.hpp  (header-only)
  Small (stream, function) -> handler map.  Server registers all
  handlers once at startup, then the Connection's message handler is
  just `router.dispatch(msg)`.  Unhandled primaries with W set get
  SxF0 by default.  Replaces the if-ladder in secs_server.cpp.

include/secsgem/gem/control_state.hpp + .cpp
  ControlTransitionTable is the new pure data type.  ControlStateMachine
  is now a thin engine over the table: `fire(event)` looks up the row,
  optionally transitions, optionally chains a `then` transition, returns
  the ack code.  Behaviour rules no longer live in C++ switches.
  The default in-code table matches data/control_state.yaml row for row;
  tests rely on it so they don't need the YAML file.

include/secsgem/gem/data_model.hpp + .cpp
  `register_command(rcmd, CommandSpec)` replaces the function-handler
  signature.  CommandSpec = (HostCmdAck, optional emit_ceid, optional
  set_alarm).  `dispatch_command` returns a CommandResult so the server
  can fire the side-effects after S2F42 is sent.

apps/secs_server.cpp
  No populate(), no if-ladder.  Loads equipment.yaml + control_state.yaml
  at startup (clean error on bad config), wires the Router once,
  delegates dispatch.  Sm change handler reads emit_on_control_change
  from the YAML.  Welcome S10F3 removed for parity with config (a future
  YAML rule could re-introduce it declaratively).

tests/test_loader.cpp  (new)
  Verifies the YAML loader produces the same shape as the in-code
  default table, and that equipment.yaml populates every section
  (SVIDs/ECIDs/CEIDs/alarms/recipes/commands).  SECSGEM_DATA_DIR
  CMake define points at ${CMAKE_SOURCE_DIR}/data so tests don't
  depend on cwd.

CMakeLists.txt, Dockerfile
  find_package(yaml-cpp) and link.  libyaml-cpp-dev added to the
  Ubuntu base image (yaml-cpp 0.8 ships the modern target name).

File consolidation
------------------

Five small files removed; their content lives in fewer headers:

  - secs2/item.cpp        -> inline in secs2/item.hpp
  - secs2/message.cpp     -> inline in secs2/message.hpp
  - hsms/types.hpp        -> merged into hsms/header.hpp
  - hsms/frame.hpp        -> merged into hsms/header.hpp
  - hsms/frame.cpp        -> merged into hsms/header.cpp

hsms/header.hpp is now "the HSMS wire format" in one place: SType + status
enums + Timers + Header + Frame + constants.  All includers updated.

Net effect
----------

Before: equipment data dictionary lived in 50 lines of imperative
populate() inside secs_server.cpp; dispatch in a 20-branch if-ladder.

After: equipment data dictionary lives in 47 lines of YAML; dispatch
is a Router built once.  Adding a new capability is now a YAML edit
in the common case.

Test count up to 67 cases / 384 assertions (+4 cases / +106 assertions)
covering the loader and the new table-driven SM paths.

What's NOT changed
------------------

The per-SxFy reply construction still lives in C++ (each message has a
unique body shape).  Moving those into YAML/JSON message-shape
definitions is the next refactor step but requires a generic typed
encoder/decoder driven by shape descriptors; out of scope here.

Spooling, the S9 error stream, S1F19/F20, and the other gaps in
COMPLIANCE.md remain unchanged.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-06-02 08:57:38 +02:00