Since #516 a DriverConfig change is stop + respawn, so DriverSpawnPlan.ToApplyDelta
was always empty and the in-place path had no producer. #663 and #664 were both
latent bugs in it. This deletes it:
- host: ApplyChildDelta, _pendingDelta, HandleApplyResult and HandleDeltaApplied
- plan: DriverSpawnPlan.ToApplyDelta
- actor: the ApplyDelta, ApplyResult and DeltaApplied messages, the Connected
reinit handler and the mid-connect AdoptConfigDuringInit
- tests: the actor tests that drove the seam
IDriver.ReinitializeAsync and each driver's implementation and unit tests stay.
Comments and docs that cited AdoptConfigDuringInit as the reason a driver must
release prior state at init now cite the IDriver contract and overlapping
retries, which still apply.
Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe
S7.Net's own STRING/DT encoders throw ArgumentException; that fell into the
generic write catch (BadCommunicationError + Degraded health). Now surfaced as
S7ValueRangeException like the WSTRING/DATE codecs.
Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe
New S7DataType members WString/Char/WChar/Dtl/Date/Tod/Time/S5Time mapped onto existing
DriverDataType (String / DateTime / Int32 ms); writes refuse out-of-range with BadOutOfRange.
Optional localTsap/remoteTsap/connectionType through options, factory JSON, probe and AdminUI form.
NegotiatedPduSize snapshotted at connect and exposed via GetDiagnostics (DriverHealth has no bag).
Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe
FOCAS, AbLegacy, AbCip, TwinCAT, S7 and OpcUaClient orphaned the previous
probe/recycle/fixed-tree loops and clients when re-initialised on a live driver.
Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe
Array nodes were forced read-only for every driver. A new single authority,
Core.Abstractions DriverArrayWriteSupport, says which (driver, element type)
pairs encode a whole-array write: Modbus (Coils / numeric HoldingRegisters),
S7 (Byte/Int16/UInt16/Int32/UInt32/Float32), OpcUaClient (pass-through) and
Galaxy (Boolean/Int32/Int64/Float/Double/String/DateTime). Everything else
stays read-only, so the server never advertises a write the driver refuses.
- Composer derives RawTagPlan.ArrayWritable + UnsReferenceVariable
.BackingArrayWritable at compose time (both seams, byte-parity); the
applier's one writability rule is Writable && (!IsArray || ArrayWritable)
for materialise and surgical paths, raw and UNS alike.
- ArrayWritable is on the classifier's surgical raw-tag whitelist and
mirrored on the UNS record (UnsReferenceBackingParityTests updated).
- Node manager refuses a wrong-length / non-array value on an array node
(BadTypeMismatch) and any IndexRange write (BadWriteNotSupported) inline,
before dispatch; WriteOperate/ACL gates and the revert are unchanged.
- Per-driver parity tests pin the table against the real Modbus write path,
S7 EncodeArrayBlock and Galaxy MxValueEncoder (UInt32/UInt64 excluded:
array covariance reinterprets their bits).
- Over-the-wire proof in OpcUaServer.IntegrationTests (ArrayWriteWireTests).
- ValueRank > 1 documented as out of scope by decision (docs/Uns.md).
Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe
- Galaxy: deadline bounds the wait, not the subscribe RPC; BadTimeout for all tags and late handles unsubscribed; doc comment relocated
- S7: probe connect runs on the connect deadline so a timeout opens the backoff window
- S7: a successful write only retires a Faulted the write side owns
- S7: null array elements rejected (BadTypeMismatch); multi-PDU array writes documented non-atomic
- S7 integration: array write test gated on S7_SIM_ALLOW_WRITES=1
Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe
STAB-21 ConnectionBackoff in EnsureConnectedAsync; STAB-22 write-pass accumulator with a
write-side Faulted that a clean read does not erase; _health on the Volatile idiom;
S7-016 contiguous array write (Bool arrays stay refused).
Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe
The driver stamps DateTime.UtcNow at init and again per read pass; under CPU
contention both land in the same tick, so the strict greater-than assertions
flaked (reproduced 1/40 under load, sibling test A_cancelled_pass_still_flushes...
failed identically with equal timestamps). Test-only race; no production defect.
Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe
#556 item 1 — leading whitespace defeated every Inspect's pre-filter. Seven
factories (Modbus/S7/AbCip/AbLegacy/TwinCAT/FOCAS/Mqtt) tested
`reference[0] != '{'`, so a padded blob returned EMPTY and a tag the driver
refuses deployed clean. The check now trims first, matching the idiom
Sql/Calculation/MTConnect/OpcUaClient already used. The raw reference is still
what is handed to the mapper — the driver reads the stored blob, not a trimmed
copy — so the gate keeps mirroring the runtime rather than becoming lenient.
Both directions are pinned: a padded blob the mapper accepts still draws
nothing, and one that is not object-framed AFTER trimming still draws nothing
(it is not an equipment-tag TagConfig at all).
Six of the seven mappers hand the blob to a whitespace-tolerant
JsonDocument.Parse, so their verdict is unchanged by padding. MQTT is the
exception: both its readers carry the same framing gate, so a padded blob is
genuinely refused — which is why the untrimmed pre-filter was a real defect
there and not a cosmetic mismatch.
#556 item 2 — FOCAS and MQTT appended advisories unconditionally and then gated
the catch-all rejection message on `warnings.Count == 0`, so an advisory (which
fires on ACCEPTED blobs too, and says nothing about a refusal) silently
swallowed the only message naming a refusal nothing else can. The two classes
now accumulate in SEPARATE lists and the backstop gates on the rejection count
alone — structural, not string matching. MQTT's swallow was reachable in
production (a padded blob its readers refuse while every describe branch finds
the parsed document well-formed); FOCAS's backstop is currently unreachable by
audit, so its guard is protective.
#557 item 2 — decided and pinned: KEEP the union verdict. Evidence:
FromSparkplugTagConfig hard-codes PayloadFormat=Json and never consults the key;
only MqttSubscriptionManager (the Plain ingest path) decodes by it; and
MqttTagConfigModel.ToJson deliberately omits the key entirely in Sparkplug mode
(#513). So a Sparkplug driver genuinely serves the tag and rejecting it would be
stricter than the runtime. The cost — served behaviour depends on the driver's
MqttMode, which no tag row records — is paid by an ADVISORY naming the key and
the mode dependency, not by changing the verdict, so both gates keep agreeing.
The same invalid value on a blob the union REFUSES stays a rejection; the class
is decided by the accept gate, never by the key.
Falsified: reverting Modbus's trim reddens the padded-rejection theory;
neutering MQTT's backstop guard to the pre-#556 shape reddens the
advisory-plus-unnameable-rejection test; disabling the #557 advisory reddens the
contract pin; and for FOCAS, removing a describe branch alone stays green (the
backstop covers it) while additionally neutering the guard goes red.
Gitea #551.
1. CSV import ran no driver-typed config gate. Its typed columns were always
strictly parsed, but the free-form TagConfigJson column reached the database
unread, so a CSV could author a tag the driver rejects — one that deploys
green and reads BadNodeIdUnknown forever. RawTagCsvMapper.Parse now names the
offending row in the staged review grid, and RawTreeService enforces the same
gate on CreateTag/UpdateTag/ImportTags: a form cannot be the guarantee (the
API and any future caller reach none of them, and this repo has no bUnit).
A rejected import row is an ERROR — the batch inserts nothing and the row is
named — never a skip.
Note the brief's premise that manual entry rides ImportTagsAsync is wrong:
RawManualTagEntryModal commits row-by-row via CreateTagAsync, which is why
the gate had to land on all three write paths.
2/3. The seven pre-#549 Inspect methods ran a hand-list of DescribeInvalidEnum
checks, so every rejection cause not on the list was invisible. They are now
ACCEPT-GATE-FIRST (the MTConnect/Sql/OpcUaClient/Calculation shape): ask the
driver's own reader for the verdict, then explain the refusal, with a
catch-all so "the parse rejects but Inspect said nothing" is unreachable.
That closes S7's absent dataType, AbCip members[], Modbus stringByteOrder and
the type-dependent guards, plus causes the issue did not name (absent
region/address/tagPath/symbolPath/topic, TwinCAT Structure, MQTT's Sparkplug
tuple). FOCAS and MQTT keep advisories about ACCEPTED blobs, so they
diagnose rather than return empty.
Authoring half: ModbusTagConfigModel gains stringByteOrder;
AbCipTagConfigModel asks the new AbCipTagDefinitionFactory.DescribeInvalidMember;
S7TagConfigModel captures whether the SOURCE blob declared dataType and asks
S7TagDefinitionFactory.DataTypeKey/DeclaresDataType. One authority per rule.
4. Doc sweep: the six factory Inspect summaries, EquipmentTagConfigInspector's
class remarks and AdminOperationsActor's comment all claimed invalid enums are
"silently defaulted by the lenient runtime" — false since R2-11 Phase C made
the runtime reads strict. They describe rejections now.
Rename S7EquipmentTagParser -> S7TagDefinitionFactory; TryParse(reference)
-> FromTagConfig(tagConfig, rawPath, out def) (drops the leading-{ heuristic,
keys the def by RawPath, adds inverse ToTagConfig). Replace S7DriverOptions.Tags
(pre-declared S7TagDefinition list) with RawTags (IReadOnlyList<RawTagEntry>);
the driver builds its RawPath->def table from RawTags at Initialize via the
factory (skip+log on miss), resolver is byName-only, DiscoverAsync + init guards
+ address pre-parse now run off that table. Factory retires the pre-declared DTO
tag path (RawTags binding only). Cli BuildOptions serialises typed defs to
RawTagEntry. Tests migrated to a S7RawTags helper + FromTagConfig; parser test
files renamed. Coordinator's EquipmentTagConfigInspector S7 rename left to Wave-B
coordinator; Driver.S7.IntegrationTests (Docker-gated) left red per scope.
Driver.S7 + Cli build green; Driver.S7.Tests 264/264, S7.Cli.Tests 49/49.
R2-11 Phase C. All six equipment-tag parsers (Modbus/S7/AbCip/AbLegacy/
TwinCAT/Focas) now read enum fields via the new TagConfigJson.TryReadEnumStrict:
absent -> fallback, valid -> parsed, present-but-invalid (typo) -> TryParse
returns false -> EquipmentTagRefResolver.TryResolve false -> driver surfaces
BadNodeIdUnknown, instead of the old lenient path that silently defaulted a
typo to a wrong-width Good.
Modbus flips all three enum fields (region/dataType/byteOrder); the other five
flip dataType. The deploy-time Deployment:TagConfigValidationMode=Error gate is
unchanged and remains the operator pre-flight.
Coverage:
- Six *EquipmentTagParserStrictnessTests inverted from Freeze_typo_* (lenient)
to Typo_*_rejects_the_tag + Valid_*_still_parses.
- TagConfigJsonTests.TryReadEnumStrict_rejects_only_invalid matrix.
- Driver-level end-to-end proof:
AbCipEquipmentTagTests.Driver_read_of_a_typod_dataType_ref_surfaces_BadNodeIdUnknown
drives the real AbCipDriver.ReadAsync through resolve->status.
Golden parity corpus has no typo'd enums, so the flip is a no-op there.
Full solution builds clean; all six driver suites + core + parity + gate green.
The R2-01 live gate (S7_1500ConnectTimeoutOutageTests, docker-pause blackhole)
surfaced a real gap the offline fakes couldn't: S7.Net's ReadTimeout/WriteTimeout
map to the TcpClient's ReceiveTimeout/SendTimeout, which govern only SYNCHRONOUS
socket calls — the async read/write paths S7.Net uses ignore them. On an
established-but-frozen peer (frozen PLC / firewall DROP / cable pulled mid-flow,
TCP session still open) a read blocked until the OS TCP stack gave up (minutes),
silently wedging the poll loop: no Bad tick, no reconnect. STAB-14 fixed only the
CONNECT leg (EnsureConnectedAsync CancelAfter); this is its READ-leg sibling.
- New S7OperationDeadline: bounds every data-plane wire op with a wall-clock
ceiling (= _options.Timeout), surfacing an overrun as TimeoutException. Applied
in S7PlcAdapter to Read/ReadBytes/Write/WriteBytes/ReadStatus. OpenAsync is left
to EnsureConnectedAsync's own CancelAfter (not double-bounded).
- IsS7ConnectionFatal now classifies TimeoutException fatal → handle marked dead →
next EnsureConnectedAsync reopens (connect-timeout fix takes over from there).
- Tests: 5 S7OperationDeadline unit tests (deadline / token-honouring / caller-
cancel-passthrough / resultless), 1 driver-reaction test (read TimeoutException
→ reopen). Driver.S7.Tests 260/260.
- Live gate S7_1500ConnectTimeoutOutageTests now GREEN against the real snap7 sim
(8s: baseline Good -> pause blackhole -> Bad tick -> unpause -> recovered Good).
Inject the custom UnwrappedCapabilityCallAnalyzer as an OutputItemType=Analyzer
ProjectReference from Directory.Build.props (excluding the analyzer + its test
project) so OTOPCUA0001 runs on every src/ and tests/ compilation — it previously
enforced its CapabilityInvoker-wrapping rule against nothing but its own 31 unit
tests (the 'built-but-never-wired' failure mode).
Triage of the ~280 surfaced hits, three categories:
1. RESILIENCE-DISPATCH-GAP (7 sites, DriverInstanceActor x6 + GenericDriverNodeManager
x1): a REAL, previously-untracked gap the analyzer caught on first wiring — the
Phase 6.1 CapabilityInvoker resilience pipeline (retry/breaker/bulkhead/telemetry)
is constructed ONLY in tests and was never wired into the production dispatch
layer. Scoped per-site #pragma with a greppable RESILIENCE-DISPATCH-GAP marker
explicitly noting these are tracked-but-not-intentional, pending the dispatch-wiring
remediation (filed as a follow-up). Keeps the analyzer live everywhere else in
those projects so a NEW unwrapped call still fails the build.
2. Driver-INTERNAL self-calls (3 sites, AbCipAlarmProjection x2 + S7Driver x1):
a driver's own poll/ack path calling its own capability method. The invoker wraps
the driver from the dispatch layer OUTWARD; a driver re-wrapping its own internal
calls would double-wrap. Genuinely intentional — scoped #pragma with that rationale.
3. Wire-level test suites + manual-testing CLIs (12 projects): invoke drivers directly
by design — the analyzer's own documented intentional case. Project-level NoWarn
with a comment.
Verified: full solution build green, 0 OTOPCUA0001 hits; analyzer's 31 tests pass;
negative control — dropping one dispatch-gap pragma re-fires OTOPCUA0001 and fails
the Runtime build, proving the analyzer is genuinely live tree-wide, not disabled.
The S7 Plc was opened once in InitializeAsync and never re-opened: a transient
PLC reboot / network blip permanently killed the driver until redeploy. Introduce
an IS7Plc / IS7PlcFactory seam (mirrors TwinCAT's ITwinCATClientFactory) and a lazy
EnsureConnectedAsync that disposes a dead handle and re-opens a fresh connection on
the next data call. Reads/writes mark the handle dead on a connection-fatal fault
(socket drop / ErrorCode.ConnectionError) but NOT on a data-address error; the probe
loop routes through EnsureConnectedAsync as a backstop.
The seam also closes the S7 TEST-1 gap — the reconnect state machine is now unit-
testable without a live PLC (S7.Net.Plc is sealed with no in-process fake).
Verification:
- 4 deterministic unit guards (fatal→reopen, data-error→no-reopen, raw socket→reopen,
reopen-fail→degrade-then-recover); full S7 unit suite 234/234 green.
- LIVE end-to-end proof against real python-snap7 (S7_1500ReconnectTests, double-gated
on sim reachability + S7_RECONNECT_BOUNCE_CMD): bounced the container, driver observed
the outage and resumed Good reads with NO redeploy. Baseline smoke 3/3 still green.
Re-review at 7286d320. S7-015 (Medium): a Writable array tag had no WriteArrayAsync path
and silently returned BadCommunicationError on write; now rejected at init with a clear
NotSupportedException (read-only arrays still accepted) + TDD. S7-016 (factory JSON can't
produce array tags; needs AdminUI DTO) deferred.
Code-review follow-ups: the page-coverage test now asserts every *DriverPage
declares a _jsonOpts serializer (so a new page that serialises config a
different way fails the guard, not just converter removal); clarify that 40 ==
(int)S7CpuType.S71500 in the numeric-throws test.
AdminUI driver-instance pages serialized enum config fields (S7 CpuType,
Modbus DataType/Region, AbCip PlcFamily, ...) as JSON *numbers* because each
page's _jsonOpts lacked a JsonStringEnumConverter. The driver factories,
however, deserialize into string-typed DTOs (+ lenient ParseEnum) and throw
when binding a JSON number to a string? — so an AdminUI-authored config
containing any enum field produced a blob the driver could not parse,
faulting the driver on deploy. Proven end-to-end for S7 and Modbus; latent
for AbCip/AbLegacy/TwinCAT/FOCAS/Galaxy/Historian. Only OpcUaClient was safe
(its factory + probe already carried the converter).
Add JsonStringEnumConverter to all 9 driver-instance pages' _jsonOpts and the
8 missing driver probes' _opts (factories unchanged — already string-via-
ParseEnum; strictly more permissive, also lets pages load hand-seeded
string-enum configs back into the form).
Also fix DriverProbeHandshakeE2eTests.AbCip_Green_AgainstSim to probe a real
sim tag (TestDINT) — the no-tags @raw_cpu_type fallback is rejected by the
ab_server sim with ErrorBadParam (a real ControlLogix returns ErrorNotFound,
which the probe treats as reachable; hardware-gated follow-up).
Tests: reflection guard over all driver pages' _jsonOpts (AdminUI.Tests);
factory round-trip + numeric-form-throws guards for S7 and Modbus.
Found by running the never-before-run FB-9/FB-10 live verifies.
M1: add missing (object) cast to UInt64 arm of DecodeScalarBlock switch expression,
matching the Int64 arm style and the comment that each arm is boxed explicitly.
M2: short-circuit Timer/Counter writes in WriteAsync to BadNotWritable before
WriteOneAsync, so transient equipment-tag refs (Writable=true from parser) return
the same status code as authored tags rejected at init — documented in the docs.
Adds 6 pure unit tests pinning the area-detection precondition the guard relies on.
EncodeScalarBlock Timer/Counter throws remain as the defensive backstop.
Joseph Doherty