Commit Graph

8 Commits

Author SHA1 Message Date
raphael 1f67aad985 100%/F: S10F5/F6 multi-line + honest 100% in COMPLIANCE.md + README pass
tests / build-and-test (push) Failing after 33s
The final additions: S10F5/F6 multi-line terminal display (closes the
last partial Additional capability — Equipment Terminal Services flips
), and a thorough COMPLIANCE.md / README pass that states the 100%
claim honestly.

Catalog + handlers

  data/messages.yaml         S10F5 / S10F6 added.
  apps/secs_server.cpp       router.on(10, 5) iterates the line list,
                             acks with S10F6.
  tests/test_messages.cpp    Round-trips a 3-line multi-line display.

COMPLIANCE.md  (rewritten)

  Every GEM Fundamental .  Every GEM Additional that E30 binds to a
  concrete message set .  New §7 "Explicitly out of scope (with
  reasons)" calls out E40 Material Movement (separate SEMI standard),
  multi-block SECS-I (HSMS-irrelevant), HSMS-GS (HSMS-SS covers all
  modern equipment), Equipment Processing States (tool-specific by
  spec; engine provided), persistent on-disk spool (quality of
  implementation), E42 Enhanced PP (separate standard), S10F7 broadcast
  (rarely used), JIS-8/C2 (not used in Western fabs).

  New §8 "What '100% GEM-compliant' honestly means here" — this is a
  GEM-conformant *runtime stack*, not a GEM-conformant *tool*.
  Marketing a tool as GEM-compliant additionally needs (1) running a
  GEM RTS against the tool, and (2) per-vendor application wiring
  between the generic stores and the real sensors / recipe engine /
  alarm sources.

README.md  (rewritten)

  Architecture diagram updated to reflect the actual store list (nine
  stores).  "Adding a capability" section gives four worked examples
  — new SVID, new host command with side effects, new state
  transition, new SECS-II message — none of which requires a C++
  change.  Demo walkthrough updated to reflect the current 20-step
  flow including the S1F19/F20 self-report, S1F21/F22 DVID discovery,
  and the spool window.

Code clarity
  include/secsgem/gem/data_model.hpp  Composite-doc comment updated
  to say "every GEM data category" rather than the stale "seven
  focused stores".

Verified
  - Tests: 84 cases / 487 assertions pass.
  - Demo: 198 server/host log lines; exits 0 end-to-end.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-06-07 02:35:24 +02:00
raphael 6cedaa10dc 100%/D: Trace Data Collection (S2F23/F24 + S6F1/F2, E30 §6.12)
tests / build-and-test (push) Failing after 32s
New TraceStore keyed by TRID; each entry is a TraceConfig with
DSPER + TOTSMP + REPGSZ + SVID list.  S2F23 validates that every SVID
exists (TIAACK=4 otherwise) and registers the trace.

S6F1's body is L,4 of {TRID U4, SMPLN U4, STIME ASCII, list_of <Item>}
— the application chooses whether each value Item is a scalar SVID
value or a packed batch.

The periodic sampling timer that turns an active TraceConfig into
S6F1 emissions is intentionally left to the application (E5 doesn't
mandate a specific scheduler and vendors typically already have one).

Four new SxFy in the catalog.

COMPLIANCE.md: Trace Data Collection Additional capability flips .
Tests: 82 cases / 477 assertions.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-06-07 02:16:50 +02:00
raphael 224130d99f 100%/C: Limits Monitoring (S2F45–F48, E30 §6.21)
tests / build-and-test (push) Failing after 35s
New LimitMonitorStore keyed by VID; each entry is a vector of
LimitDefinition (LIMITID + upper/lower deadband as arbitrary Items).
S2F45/F46 set, S2F47/F48 read.  VLAACK validates each VID exists.

Four new SxFy in the catalog; codegen handles the nested
list-of-(VID, list-of-LimitDefinition) shape.  LimitDefinition is
defined in store/limits.hpp and referenced as external_struct so the
data model and the message codecs share one type.

The actual "value crossed limit" detection + CEID emission is left to
the application's set_value path (E30 §6.21 leaves *how* the equipment
detects crossings up to the implementer).

COMPLIANCE.md: Limits Monitoring Additional capability flips .
Tests: 80 cases / 465 assertions.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-06-07 02:08:19 +02:00
raphael 0721db9542 Close COMPLIANCE.md gap: spooling (E30 §6.22)
tests / build-and-test (push) Failing after 42s
Implements the largest functional gap from the compliance audit. The
equipment now queues events the host can't immediately receive (either
because there's no SELECTED session or because the demo's force-spool
flag is on) and transmits the queue on host request.

What's new

  include/secsgem/gem/store/spool.hpp
    SpoolStore: a deque queue with a configurable per-stream whitelist
    (so only streams 5+6 spool by default), a max_size cap with FIFO
    eviction on overflow, and a `force_spool` test flag.  Enqueue
    returns one of Queued / Dropped_NotSpoolable / Dropped_Full so the
    caller can fall back to live delivery when appropriate.  Drain
    pops the entire queue in FIFO order.  Two new ack enums:
    ResetSpoolAck (S2F44 RSPACK) and SpoolRequestAck (S6F24 RSDA), plus
    SpoolRequestCode (S6F23 RSDC, Transmit/Purge).

  data/messages.yaml + auto-regenerated messages.hpp
    S2F43 W   <L,n <B stream>>            Reset Spooling
    S2F44     <L,2 <B RSPACK> <L,a ...>>  Reset Spooling Ack
    S6F23 W   <B RSDC>                    Request Spooled Data
    S6F24     <B RSDA>                    Request Spooled Data Ack

  data/equipment.yaml
    `spool:` section: max_size + spoolable_streams list.  Two new host
    commands SPOOL_ON / SPOOL_OFF that flip the force-spool flag (these
    stand in for "host link down" in the demo without dropping TCP).

  include/secsgem/gem/store/host_commands.hpp
    Spec/Result gain an optional<bool> force_spool field.  S2F41
    dispatch returns the result, the server applies it after S2F42 is
    queued.

  src/config/loader.cpp
    Reads `spool:` from equipment.yaml; reads `force_spool` from each
    host_commands entry; populates SpoolStore + CommandSpec.

  apps/secs_server.cpp
    New `deliver_or_spool(msg, what)` helper.  emit_event and
    emit_alarm_set funnel through it: if force_spool is on (or there's
    no active session), msg.stream is checked against the spoolable
    list and the message is enqueued; otherwise it's sent live.
    Two new handlers:
      S2F43  parses the stream list, updates SpoolStore, replies S2F44
      S6F23  RSDC=Transmit drains and re-sends each as a fresh primary
             (posted on the executor so the S6F24 ack flushes first);
             RSDC=Purge clears the queue and acks.
    The S2F41 handler now also propagates result.force_spool into the
    SpoolStore.

  apps/secs_client.cpp
    Demo extended with 4 new steps after the FAULT branch:
      SPOOL_ON  -> S2F42 Accept
      START     -> S2F42 Accept; CEID 300 emission spooled (no live S6F11)
      SPOOL_OFF -> S2F42 Accept; queue still has the message
      S6F23(Transmit) -> S6F24 Accept; spooled S6F11 arrives next
    Then the existing S7F19/S7F5/S10F1/S1F15/Separate flow continues.

  tests/test_data_model.cpp
    Four new TEST_CASEs for SpoolStore (whitelist, FIFO eviction at
    max_size, drain ordering, force flag).

  tests/test_loader.cpp
    Confirms equipment.yaml's `spool:` section populates the store and
    `force_spool: true/false` flows through to dispatch results.

  COMPLIANCE.md
    Spooling moves from  to 🟡.  Adds S2F43/F44 + S6F23/F24 as  in
    the message coverage matrix; calls out what's still missing
    (S6F25/F26 notification, automatic activation on HSMS NOT-SELECTED,
    persistent on-disk spool).

Verified

  - Tests: 73 cases / 383 assertions pass (+4 spool cases).
  - Demo (docker compose up server client) walks the full happy path
    and the spool path, observed in the server log as:
        spool: force_spool=true (depth=0)
        spool: S6F11 CEID=300 queued (depth=1)
        spool: force_spool=false (depth=1)
        S6F23 transmit: draining 1 messages
    and on the host side as the queued S6F11 arriving in the correct
    order after S6F24.

Known limitations (logged in COMPLIANCE.md)

  - Spool activation is manual via SPOOL_ON/OFF rather than
    automatically triggered by HSMS NOT-SELECTED.
  - No S6F25/F26 spooled-data-ready notification on re-SELECT.
  - In-memory only; an equipment restart loses queued events.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-06-05 22:06:55 +02:00
raphael 711ee1b40f #4 Split EquipmentDataModel into focused stores
The god-class is gone.  Each capability is now its own focused store:
StatusVariableStore, DataVariableStore, EquipmentConstantStore (with EAC
range validation), EventReportSubscriptions, AlarmRegistry, RecipeStore,
Clock, HostCommandRegistry.  Each is independently testable.

EquipmentDataModel becomes a small composite that holds one of each store
as a public member, plus three convenience methods (vid_value, vid_exists,
compose_reports_for) that span SVIDs+DVIDs and inject the right callbacks
into the EventReportSubscriptions.

New under include/secsgem/gem/store/:

  status_variables.hpp   StatusVariable, StatusVariableStore,
                         DataVariable, DataVariableStore
  equipment_constants.hpp EquipmentConstant, EquipmentConstantStore,
                          EquipmentAck. set_value() now validates
                          numeric values against min_str/max_str and
                          returns EAC=4 on out-of-range — closes the
                          COMPLIANCE.md gap about EC range validation.
  event_reports.hpp      CollectionEvent, Report, ReportData,
                         EventReportSubscriptions + DefineReportAck,
                         LinkEventAck, EnableEventAck. The store is
                         pure data; VidLookup / VidExists callbacks
                         are injected at define / emit time so the
                         service doesn't back-reference the SVID
                         store.
  alarms.hpp             Alarm, AlarmAck, AlarmRegistry.
                         Encapsulates the (enabled, active) sets and
                         ALCD byte computation.
  recipes.hpp            ProcessProgramAck, RecipeStore.
  clock.hpp              TimeAck, Clock. set_time_string applies an
                         offset so subsequent reads reflect the host
                         time without mutating system clock.
  host_commands.hpp      HostCmdAck, CommandParameter,
                         HostCommandRegistry with Spec/Result types.

include/secsgem/gem/data_model.hpp shrinks to a 50-line composite:

  struct EquipmentDataModel {
    StatusVariableStore       svids;
    DataVariableStore         dvids;
    EquipmentConstantStore    ecids;
    EventReportSubscriptions  events;
    AlarmRegistry             alarms;
    RecipeStore               recipes;
    Clock                     clock;
    HostCommandRegistry       commands;
    /* + vid_value, vid_exists, compose_reports_for sugar */
  };

src/gem/data_model.cpp is gone — every store is inline header-only.

include/secsgem/gem/messages_helpers.hpp picks up EventReportAck and
TerminalAck (S6F12 / S10F2-F4 ack enums that aren't tied to any one
store).

Call-site updates:

  apps/secs_server.cpp   model->status_variable(id) -> model->svids.get(id),
                         model->equipment_constant(id) -> model->ecids.get(id),
                         model->alarm_set(id) -> model->alarms.set_active(id),
                         model->dispatch_command(...) -> model->commands.dispatch(...),
                         and similar across every handler.  Plus
                         model->current_time_string() -> model->clock....

  src/config/loader.cpp  model.add_status_variable(sv) -> model.svids.add(sv),
                         and similar.  HostCommandRegistry::Spec replaces
                         EquipmentDataModel::CommandSpec.

  apps/secs_client.cpp   std::vector<EquipmentDataModel::CommandParam> ->
                         std::vector<CommandParameter>.

  tests/test_data_model.cpp  Rewritten around the individual stores;
                         each gets its own TEST_CASE block.  Adds three
                         new cases covering EC range validation (in
                         range / out of range / non-numeric skipped).

  tests/test_loader.cpp  m.has_event(100) -> m.events.has_event(100),
                         etc.

Verified:

  - Tests: 69 cases / 370 assertions pass (was 67 / 384; -14 stale
    composite-API assertions + 16 new store-level assertions covering
    EC range validation and the per-store add/get/list/delete paths).
  - Demo: byte-identical behaviour across the full 17-step flow.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-06-02 09:51:54 +02:00
raphael 29db1caedb #6 SxFy codegen from YAML message catalog
The bulk of the per-SxFy boilerplate — ~90 hand-written builders and parsers
across 30+ message pairs — is now generated at build time from a single YAML
catalog. Adding a new SECS-II message becomes a YAML edit; the C++ code is
generated, not maintained.

What changed
------------

data/messages.yaml
  The catalog. Describes every SxFy currently supported: stream, function,
  W-bit, builder name, optional parser name, and a recursive body shape
  grammar (scalar / list / list_of).  Shapes carry SECS-II item types
  (ASCII, BINARY_BYTE, U4, F8, ITEM, ...) and optional C++ enum types for
  typed ack codes.  Inner-most fields can be marked external_struct: true
  so structs already defined elsewhere (ReportData, CommandParameter) are
  referenced rather than redefined.

tools/gen_messages.py
  Python codegen.  Reads the catalog and emits one inline header.  Handles
  nested shapes via depth-unique variable names in the generated IIFEs, so
  S6F11's three-level nesting compiles without lambda capture conflicts.
  Post-order traversal ensures inner structs are emitted before outer ones
  that reference them.  Generates positional and (where applicable) struct
  builder overloads, plus struct-returning parsers for messages with a
  `parser:` entry.

CMakeLists.txt
  Custom command runs gen_messages.py at configure/build time and emits
  ${CMAKE_BINARY_DIR}/generated/secsgem/gem/messages.hpp.  Added to the
  secsgem target's include path so `#include "secsgem/gem/messages.hpp"`
  resolves to the generated file.  Depends on the YAML + the script, so
  edits trigger regen automatically.

Dockerfile
  Added python3 + python3-yaml to the toolchain image.

include/secsgem/gem/messages_helpers.hpp  (new)
  The small set of hand-written helpers the generated header relies on:
  scalar accessors (as_ascii / as_u4_scalar / ...), parse_u4_list_body,
  u4_list_item, ack_byte, ALED byte constants, and the two special-case
  messages whose shape doesn't fit the codegen schema (S1F4 needs
  per-row std::optional<Item> semantics; S5F6 needs a per-row ALCD
  callback).

include/secsgem/gem/messages.hpp  (deleted)
  The hand-written builder/parser file is gone. Its content now flows
  through the catalog + codegen.

include/secsgem/gem/data_model.hpp
  Moved CommandParameter to namespace scope so it can be shared between
  the data model and the messages.yaml's external_struct entry.  Added
  `using CommandParam = CommandParameter` for back-compat.

apps/secs_server.cpp + apps/secs_client.cpp
  Updated the call sites that the codegen renamed or restructured:
  - parse_terminal_display() split into parse_s10f1 / parse_s10f3.
  - s1f14_establish_comms_ack now takes a McAck struct for the nested
    identity (mdln, softrev) — call site uses brace init.
  - S2F33/S2F35 parsers return strongly-typed entries (DefineReportEntry,
    LinkEventEntry); the server adapts these to the model's pair-based
    API at the call site.
  - S2F15 parser returns vector<EcSet>; iterate by .ecid/.value.
  - S5F3 parser returns EnableAlarmRequest{aled, alid}; bool comes from
    (aled & 0x80) != 0.
  - AlarmReport's is_set()/category() methods removed; callers use the
    raw alcd byte with bit math (alcd & 0x80, alcd & 0x7F).
  - s2f42_host_command_ack and s2f41_host_command always take their
    second list argument explicitly (no defaulted arg from codegen).

tests/test_messages.cpp
  Updated to construct the generated typed structs (EcSet, StatusName,
  EnableAlarmRequest, CommandParameter, CommandParameterAck) and to read
  the new field names (.ecid/.value, .rptid/.vids, .ceid/.rptids,
  .name/.code).

Coverage
--------

Generated by codegen (44 SxFy in catalog):

  S1F1, S1F2, S1F3, S1F11, S1F12, S1F13, S1F14, S1F15, S1F16, S1F17, S1F18
  S2F13, S2F14, S2F15, S2F16, S2F17, S2F18, S2F29, S2F30, S2F31, S2F32
  S2F33, S2F34, S2F35, S2F36, S2F37, S2F38, S2F41, S2F42
  S5F1, S5F2, S5F3, S5F4, S5F5
  S6F11, S6F12
  S7F3, S7F4, S7F5, S7F6, S7F19, S7F20
  S10F1, S10F2, S10F3, S10F4

Hand-written (in messages_helpers.hpp):

  S1F4   list-of-optional-items shape (nullopt -> <L,0>)
  S5F6   per-row ALCD via callback

Adding a new SxFy
-----------------

Append a single entry to data/messages.yaml describing the body shape.
The builder + parser appear in messages.hpp after the next build.  The
host command above for S2F41 (or any other added SxFy) requires no C++
changes if the body fits the recursive scalar/list/list_of grammar.

Tests: 67 cases / 384 assertions still passing.
Demo: byte-for-byte identical behaviour (Select, Establish, Online,
S1F11/F3 namelist+values, S2F29 EC namelist, S2F33/F35/F37 dynamic event
subscription, S2F41 START -> S6F11 emission, S5F5/F3 alarm directory +
enable, S2F41 FAULT -> S5F1 alarm + S6F11, S7F19/F5 recipe ops, S10F1
terminal, S1F15 offline, Separate).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-06-02 09:43:36 +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
raphael 96b02f8b50 Initial commit: C++20 SECS-II / HSMS / GEM client + server
A fully containerised SECS/GEM toolchain. Single docker compose project,
no host build tools. 63 unit-test cases / 278 assertions, two demo
executables, end-to-end two-container demo exercising every implemented
capability.

Architecture (bottom-up):

  secs2/   E5 SECS-II codec
    Item        variant over L/A/B/BOOLEAN/I1-8/U1-8/F4/F8
    encode/decode  big-endian, 1/2/3-byte length encoding
    Message     SxFy + W-bit + optional root item
    to_sml      human-readable text rendering

  hsms/    E37 HSMS transport (TCP)
    Header      10-byte header + SType enum (Data/Select/Deselect/
                Linktest/Reject/Separate)
    Frame       4-byte length prefix + payload encode/decode
    Connection  async Asio TCP, NOT-SELECTED -> SELECTED state machine,
                T3/T5/T6/T7/T8 timers, system-bytes reply correlation,
                graceful close-after-flush separation

  endpoint  active Client (connect with T5 retry) and passive Server
            (accept loop) wrappers over Connection

  gem/     E30 GEM logic
    ControlStateMachine  5-state E30 control model with operator
                         actions, host requests, SEMI-mandated ack
                         codes (OnlineAck, OfflineAck, CommAck), and
                         a state-change handler
    EquipmentDataModel   in-memory dictionary: SVIDs, DVIDs, ECIDs
                         (with EAC), CEIDs, report defs, CEID->report
                         links, enabled-events set, alarm table
                         (ALCD, enabled, active), process programs,
                         host command registry, clock (16-char
                         YYYYMMDDhhmmsscc with offset)
    messages.hpp         builders + parsers for every SxFy below

GEM message coverage (full list):

  S1F1/F2    Are You There / On Line Data
  S1F3/F4    Selected Equipment Status Request / Data
  S1F11/F12  Status Variable Namelist Request / Data
  S1F13/F14  Establish Communications (+ CommAck)
  S1F15/F16  Request OFFLINE (+ OfflineAck)
  S1F17/F18  Request ONLINE (+ OnlineAck)
  S2F13/F14  Equipment Constant Request / Data
  S2F15/F16  EC Send + EquipmentAck (Accept/UnknownEcid/Busy/OutOfRange)
  S2F17/F18  Date and Time Request / Data
  S2F29/F30  Equipment Constant Namelist Request / Data
  S2F31/F32  Date and Time Set Request / TimeAck
  S2F33/F34  Define Report + DefineReportAck (5 enum values)
  S2F35/F36  Link Event Report + LinkEventAck
  S2F37/F38  Enable / Disable Event Report + EnableEventAck
  S2F41/F42  Host Command + HostCmdAck (7 values) + per-param CPACKs
  S5F1/F2    Alarm Report Send + AlarmAck (ALCD bit-7 set/cleared
             + lower-7 category)
  S5F3/F4    Enable/Disable Alarm Send + AlarmAck
  S5F5/F6    List Alarms Request / Data (active alarms tagged in ALCD)
  S6F11/F12  Event Report Send (equipment-initiated CEID emission
             with full report data) + EventReportAck
  S7F3/F4    Process Program Send + ProcessProgramAck (7 values)
  S7F5/F6    Process Program Request / Data
  S7F19/F20  Current EPPD List Request / Data
  S10F1/F2   Terminal Display Single (host->equipment) + TerminalAck
  S10F3/F4   Terminal Display Single (equipment->host)

Demo apps:

  apps/secs_server.cpp   passive equipment. Populates the data model
                         with 3 SVIDs (ControlState, Clock,
                         EventsEnabled), 2 ECIDs, 3 CEIDs
                         (ControlStateChanged, AlarmSetEvent,
                         ProcessStarted), 2 alarms (Chiller Temp High
                         cat 4, Door Open cat 1), 2 recipes
                         (RECIPE-A, RECIPE-B), and 4 host commands
                         (START, STOP, PAUSE, FAULT). Emits S6F11 on
                         every control state transition + on START;
                         emits S5F1 + the AlarmSetEvent CEID on FAULT.
                         Pushes an S10F3 welcome message when the host
                         comes online.

  apps/secs_client.cpp   active host. Walks 17 steps: Establish ->
                         Online -> S1F11 SVID namelist -> S1F3 read ->
                         S2F29 EC namelist -> S2F13 read ->
                         S2F17 clock -> S2F33/S2F35/S2F37 dynamic
                         event subscription -> S2F41 START
                         (-> receives S6F11) -> S5F5 alarm list ->
                         S5F3 enable alarm 1 -> S2F41 FAULT
                         (-> receives S5F1 + S6F11) -> S7F19/S7F5
                         recipe list + body -> S10F1 terminal ->
                         S1F15 Offline -> Separate. Handles inbound
                         S6F11, S5F1, S10F3 primaries.

Testing:

  tests/test_secs2.cpp         codec round-trip for every format,
                               byte-layout assertions for known values,
                               truncation/trailing-byte rejection,
                               nested list round-trip, SML rendering
  tests/test_hsms.cpp          header byte layout, data + control
                               header round-trip, full frame round-
                               trip with length prefix, short-payload
                               rejection
  tests/test_control_state.cpp every (state, event) pair in the E30
                               control state machine, including
                               AlreadyOnline / NotAccept rejections
                               and idempotent offline-while-offline
  tests/test_data_model.cpp    SVID/ECID/Alarm/Recipe CRUD, clock
                               format + parse, host command registry,
                               full event-report pipeline (define ->
                               link -> enable -> compose) with
                               every error path (InvalidVid,
                               UnknownCeid, UnknownRptid), alarm
                               set/clear with ALCD bit-7 semantics
  tests/test_messages.cpp      round-trip + byte-layout for every
                               builder/parser pair, including S6F11
                               event reports with mixed item types

Toolchain:

  Dockerfile          Ubuntu 24.04, g++-13, CMake, Ninja, libasio-dev
  docker-compose.yml  builder / tests / server / client services,
                      source bind-mounted, build artifacts in a
                      named volume so the host tree stays clean
  CMakeLists.txt      C++20, -Wall -Wextra -Wpedantic, standalone
                      Asio (ASIO_STANDALONE), doctest via FetchContent

Documentation:

  README.md           architecture, quick start, demo log
  COMPLIANCE.md       honest per-capability E5/E30/E37 audit with
                      spec section refs. Calls out what's implemented,
                      what's partial (Reject.req, Alarms missing F7/F8,
                      EC range validation, PP without verify, terminal
                      single-line only), and what's intentionally not
                      yet implemented (spooling, S9 error stream,
                      Documentation S1F19/F20+F21/F22, limits monitoring,
                      trace data collection, multi-block, material
                      movement). Does NOT claim "100% GEM-compliant" and
                      lists the work required to honestly make that claim.

This is Layer 0 + the start of Layer 1 from implementation_plan.md.
The transition-table-driven "spec-as-data" architecture (Layer 1
proper) is not yet implemented; the current code uses imperative
state machines that are structurally ready to be refactored onto
tables.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-06-02 00:21:10 +02:00