fix(hl2): preserve per-band gain across startup and overrides - #5402
Conversation
The overload bit is a per-frame sample of a level comparator, not an event. On a strong band it dithers, so the edge gate in publishTelemetry sees an edge nearly every time it looks and the same warning repeats at the full telemetry cadence for as long as the band stays strong. On the severity, stated carefully. docs/HERMES.md 15.7 recorded ~133 warnings/second on the MW broadcast band, flushing the log ring and burying the lines a diagnosis needed. That figure is stale: MetisClient has since coalesced telemetryUpdated to 10 Hz (aethersdr#4449), which caps this at ~10/s however hard the comparator chatters. This change is not offered as a fix for ring-flushing, which the coalescer already ended. It is offered for what is left — one message repeating ten times a second, indefinitely, which still buries its neighbours over a session. The edge gate is necessary and was never sufficient, so it stays and a rate limit sits behind it: warn on the first edge, then at most once per 10 s window, carrying the count of transitions the window swallowed. The count is reported rather than dropped because the rate is the severity here. It counts transitions SEEN, at the 10 Hz telemetry cadence, not comparator edges — those are sampled far below their true rate, and were before this change too. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01CkisdWQiVxcUG6r6X9W3Fg
Review nit: the header comment goes out of its way to call the ~133/s figure stale, and the doc it cites still asserted it in the present tense. Row 6a is struck with the convention the table already uses for 12a, and 15.7 now records what actually happened. 15.7 is corrected rather than rewritten. The rate was real when measured; it stopped being reachable at aethersdr#4449, when telemetryUpdated was coalesced to 10 Hz -- which capped this at ~10/s and ended the ring-flushing without anyone recording that it had. A symptom that quietly stops reproducing is worth more as a corrected entry than a deleted one. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01CkisdWQiVxcUG6r6X9W3Fg
Two review nits, neither behavioural.
The comment claimed more than the code does. It said a single counted
transition is the first-ever one and therefore reports immediately. It
is not: it means exactly one transition was seen in this window, and
that one may have arrived at any point since the window opened, so a
bare message can lag the event by up to the window. The comment now says
that, says it is accepted and why, and separately states the reason
reading elapsed() is safe -- which was the part that was actually load
bearing and was buried.
And "(" streamed as its own item makes QDebug insert a space after it,
printing "( 51 times in 10000 ms)". Composed into one string with
noquote instead.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CkisdWQiVxcUG6r6X9W3Fg
A connect carrying the namespaced lnaGainDb param sets the live gain to the pinned value while the start band's stored entry says something else. The first band change then calls rememberCurrentBandState(), which writes the live value back over that entry. The operator's calibration for that band is replaced by a number that was only ever meant to hold for one session. The loss is silent and it is delayed, which is what makes it worth a fix rather than a note. Nothing is wrong at connect -- the pinned value is exactly what was asked for. The stored entry dies later, on an unrelated action, and every later session comes up on the pinned value as though the operator had chosen it. By the time a band sounds wrong there is nothing left on disk that says what it used to be. The defect is established by reading the path and by the test below, NOT by a field measurement. On a Hermes-Lite 2 (gateware 883a338) on 2026-09-03 a stored per-band LNA entry was in fact lost across two launches -- 40 m went from -6 dB to -12 dB with no operator gain change -- but that run was not instrumented to separate this mechanism from the neighbouring one in the SCOPE note, and only one of the four bands touched was affected. It is corroboration that stored entries do get lost here, not proof of which write did it. WHAT THIS DOES NOT CHANGE: the connect param still wins the live value. That precedence is documented and deliberate at the call site -- "The explicit param still wins via the guard" -- and it is how every automation and test caller pins gain. Reversing it would break those callers to fix a persistence bug. Only the persistence is refused: the radio still runs at the pinned value and every pan is still told about it. The decision lives in a header evaluated by Hl2Backend rather than copied into it, the idiom Hl2TxLevelPolicy.h established in this same backend and for the same reason: a test against a re-typed copy of this decision would agree with itself while the backend kept the bug. connectLna() marks a session pin only when the param diverges from an entry the band actually has. bandMemoryWriteback() keeps the stored value for that band. The pin ends the moment it stops describing anything true -- a real operator gain change clears it, because the value is then their choice for that band, and so does leaving the band, because the entry it protected has survived the only write that threatened it. Left set, it would quietly make every later band non-recordable too. Six further assertions pin the ways this could go wrong: a param equal to the stored entry is not a pin, a param on a band with no entry is not a pin and still records normally, and an ordinary operator change still overwrites. Test layer per aethersdr#5358: the assertions are deterministic, so they are a socket-free ctest rather than a run against a simulated radio. No synthetic firmware peer stands in for the HL2. SCOPE: this fixes the overwrite only. Whether the stored per-band LNA is re-applied on a band change at all is a separate finding and is NOT addressed here -- no assertion in this commit covers the reach of applyPerBandStateFor(), which is gated on the tuned receiver owning transmit. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01CkisdWQiVxcUG6r6X9W3Fg
Ozy311
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Issue fit
There is no linked issue. The first commit identifies a real, narrow persistence defect on the direct RadioConnectRequest automation/embedder path: an explicit lnaGainDb can diverge from an existing start-band entry, and that session-only value should not silently replace the stored calibration. The shipped UI does not currently populate this parameter, as the PR correctly discloses.
Scope
| Area | Fit |
|---|---|
| Connect-time LNA/write-back policy | Directly addresses the stated defect |
| Socket-free policy regression | Appropriate deterministic layer |
| Band-change read-back policy in commit 2 | Separable record of already-correct behavior, not required for the fix |
The second commit is clearly separated, but it adds production indirection and roughly 90 lines for a claim the PR says was already disproved. I would prefer it split or dropped; I am treating that as a scope nit rather than a blocker because the behavior is equivalent and independently asserted.
Blockers
- The persistence fix only protects
rememberCurrentBandState().currentOperatingState()still unconditionally insertsm_lnaGainDbunderm_currentBandKeyat line 4460. A same-band tune, mode change, filter change, or other unrelated action schedules a store; that snapshot will therefore persist the session pin over the protected entry before the first band change. For example: restore 20 m = -12, connect withlnaGainDb=20, tune within 20 m, then the debounced capture saves 20 for 20 m. The snapshot path must apply the same preservation rule whilem_lnaSessionPinis active, with a regression covering the production snapshot decision. - The test's field-evidence claim is false and directly contradicts the corrected PR body: the observed change was 40 m from -6 to -12, neither launch supplied
lnaGainDb, and the PR states this mechanism did not cause it. Remove the causal claim rather than leaving inference presented as observation.
Nits
- The new policy/header and test use several unbraced single-statement
ifbodies; project style requires braces on all control flow. - Consider splitting or dropping the second commit's already-correct band-change extraction so this persistence fix remains single-purpose.
Empirical evidence
- Reviewed exact head
db988aa1af45b73665eb823f3737c96339479cf2; both commits are GitHub-verified. - Configured the exact head in a disposable macOS worktree, built the touched
Hl2Backend.cppobject andhl2_band_memory_test, and ran the test: all 16 assertions passed. git diff --check,tools/check_engine_boundary.py --strict, andtools/check_test_registration.py --strictpassed (engine check emitted only existing tracked warnings).- Merge-tree against the current local
origin/mainsnapshot was clean. - Socket preflight was clear: the PR adds only a pure, socket-free test.
- No app-driving test was useful: the defect is explicitly unreachable through the shipped UI, and the demo backend cannot exercise an HL2-only connect parameter.
- GitHub reports no checks on this head.
Recommendation
Request changes. Preserve the stored entry in both the band-change write-back and the operating-state snapshot, remove the unsupported field claim, and add regression coverage for the snapshot path.
… review) Ozy311 found a real hole: the fix protected rememberCurrentBandState() and left currentOperatingState() inserting m_lnaGainDb unconditionally at :4460. That snapshot runs on a DEBOUNCED store which any unrelated action schedules -- a same-band tune, a mode change, a filter change -- so it reaches the band map long before the first band change. Their worked example: restore 20 m at -12, connect with lnaGainDb=20, tune within 20 m, and the capture stores 20 for 20 m. The pin was persisted through a path the fix never covered. Both call sites now evaluate the same policy function. One rule asked twice, not two copies that can drift. Three regressions cover the production snapshot decision, including that exact scenario, plus the two cases that must NOT change: without a pin a capture still records the live value, or the memory would freeze against genuine operator changes; and an uncalibrated band still records, so the memory keeps learning bands. Mutation-checked rather than assumed: with the preservation removed, the write-back assertion AND the new snapshot assertion both fail; restored, all pass. Also removes a false claim from the test. Its comment cited the 40 m -6 to -12 bench loss as caused by this mechanism. Neither launch supplied a lnaGainDb param, so no pin existed and this path never fired; the cause was the separate global RF-gain replay. I had corrected that in the commit message and the PR body and never propagated it to the test, so the file kept asserting as observation what the body disclaims. The correction existing and not propagating is worse than the original error, so the reason is recorded in place. Braces on all single-statement if bodies, per project style. The band-change re-apply assertions are split out of this PR onto record/hl2-band-change-assertions, so the persistence fix stays single-purpose as the reviewer preferred. Checkers: check_engine_boundary.py --strict 0 blocking (86 pre-existing tracked warnings only), check_test_registration.py --strict OK, git diff --check clean, backend object builds, hl2_band_memory_test 19/19. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01CkisdWQiVxcUG6r6X9W3Fg
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Both blockers addressed; the branch is force-pushed as Blocker 1 — the snapshot path. Your example is exact: Blocker 2 — the field-evidence claim. Removed from the test, with the reason recorded in place. You were right that it contradicted the body: the correction had been made in the commit message and PR body and never propagated to the test file. This PR does not claim to explain the observed 40 m loss; that is #5400. Nits: braces on every single-statement |
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…y seam Two blockers from Ozy311's aethersdr#5381 review. restart() reads the elapsed time before restarting, and reading elapsed time from a QElapsedTimer that was never started is undefined. The first-assertion path guarantees the clock is invalid -- it is the path where the limiter arms for the very first time -- so the arming that mattered most was the undefined one. start() is defined on a fresh and a running timer alike, and the value restart() returned was discarded. The decision now lives in Hl2OverloadPolicy.h, evaluated by the backend rather than copied into it. That is the point of the seam: this behaviour was previously reachable only by running a radio into a strong band for ten seconds, which is exactly why it shipped carrying a bug no compiler could see. Thirteen assertions cover the four cases the review named -- the first assertion reporting immediately against an invalid clock, chatter suppressed inside the window, the window flushing without a new assertion so a stopped burst still reports its tally, and an isolated overload after a quiet interval -- plus three it did not: silence when nothing was seen, on both an expired window and an invalid clock, without which a quiet radio would warn forever; and both sides of the expiry boundary. Mutation-checked rather than asserted. Four mutations, each caught by three or four assertions: the first-assertion special case removed, the aggregate threshold off by one, the expiry boundary made strict, and the nothing-seen guard deleted. m_adcOverloadEdges becomes m_adcOverloadAssertions and the comments that said "transitions" now say "assertions" -- the counter only ever increments on a rising edge, so "transitions" overstated what it holds and invited exactly the off-by-one the mutation above checks for. Checkers: check_engine_boundary.py --strict 0 blocking (86 pre-existing tracked warnings), check_test_registration.py --strict OK, git diff --check clean, backend object and test both build, 13/13 pass. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01CkisdWQiVxcUG6r6X9W3Fg
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Environment correction, edited into the description above: the host is macOS 26 (Darwin 25.5.0), not macOS 15 — a wrong label on the same kernel. Nothing else changed. |
Ozy311
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Follow-up scope
Reviewed the full five-file PR and the incremental fix at exact head b1f0576d93b92f249b33e9a4f6b2d22861e13d24. The production correction requested in the first review is now present in both writers: rememberCurrentBandState() and currentOperatingState() use the same preservation policy. The unsupported causal attribution was corrected in the test, and the separable band-change record was removed from this branch.
Blocker
The requested regression for the production snapshot decision is still missing. The three new tests labelled snapshot call bandMemoryWriteback() directly, exactly as the original write-back test already did; they never execute Hl2Backend::currentOperatingState(). I mutation-checked the distinction: restoring the old broken snapshot line (lnaByBand.insert(m_currentBandKey, m_lnaGainDb)) compiled cleanly and hl2_band_memory_test still passed. That is the same bug this follow-up is meant to prevent. See the inline comment.
The policy itself is covered: mutating its preservation branch to return liveDb made both the write-back and labelled snapshot helper assertions fail. What is not covered is whether the snapshot writer actually invokes the policy with the backend's real band/map/pin state. Add a socket-free behavioral regression at the production capture seam (or extract a seam from that actual state construction) so reverting the currentOperatingState() line fails.
Nits / claims
- Two newly added production
ifstatements remain unbraced; see the inline comment. - The PR description is stale after the band-change commit was split out: it still says the second commit adds
bandChangeLna()and five band-change assertions. It also reports eleven/19 checks in different places, while the current executable emits 15 checks. Please update the description so its scope and evidence match this head.
Evidence
- Exact-head macOS configure/build passed for
hl2_band_memory_test,hl2_state_restore_test, and the touched backend object. - Ran only the new socket-free
hl2_band_memory_test: pass (15 checks). - Positive mutation: changing
bandMemoryWriteback()to return the live value made the intended preservation assertions fail; restoring it returned the test to green. - Negative mutation: reverting only
currentOperatingState()to the old unconditional live-value insert compiled successfully and the test remained green; restoring it rebuilt cleanly and the worktree is clean. git diff --check,tools/check_engine_boundary.py --strict, andtools/check_test_registration.py --strictpassed (86 tracked warnings, zero blocking).- Merge-tree against current
origin/main(dafe441b194bb570fa44836c415a3ebae03280f8) is clean; current-main changes in the touched production files are unrelated capability declarations. - Both commits are GitHub-verified; GitHub reports no checks on this head.
- No app or radio hardware was started or driven. No socket test was run; the PR's new test is socket-free.
- Trusted review-skill SHA-256:
dc9bd117248079081ef9f5708e2ea3e9789b5c9f71c5efcf560054186fe309a4; canonical and mirror constitution SHA-256:d585c0383b782a8ade22a341134ab16b63f897446b1dc2fe1fc990590312d438.
Recommendation
Request changes. The code correction looks sound, but Principle XII requires the fixed snapshot contract to be demonstrated. Make a mutation at the production snapshot writer fail, then clean up the two style violations and stale PR claims.
The reviewer made the mutation and it was invisible: reverting the snapshot line to the old unconditional `lnaByBand.insert(m_currentBandKey, m_lnaGainDb)` compiled cleanly and hl2_band_memory_test stayed green. My three "snapshot" checks called bandMemoryWriteback() directly, exactly as the write-back checks already did. They proved the policy decides correctly; nothing proved the snapshot writer asks it. So the regression moves to hl2_state_restore_test, which already builds an Hl2Backend socket-free against TEST-NET-1 and reads currentOperatingState() thirty times over. The new block runs the reviewer's own scenario through the production capture: restore 20 m at -12, connect with lnaGainDb=20, tune WITHIN 20 m. The tune is not a band change, so rememberCurrentBandState() never runs and the debounced capture is the only writer that reaches the map -- which is why this path persisted the pin long before the first band change could. Reverting the currentOperatingState() line now fails on the first check. WITH A PRESENCE CONTROL, because everything the fix asserts is an absence: a value that did not change. That would also pass if the map were simply unwritable through the capture, or if the pin had never happened and the live value had been -12 all along. So the block ends the pin the way an operator does -- band hop, return, setPanRfGain -- and shows the SAME assertion move to 5. Preservation, not a dead writer. Worth recording why this is the only observable scenario: a session pin is the one state in which live and stored legitimately differ. Every other path keeps them equal, which is exactly why the snapshot line's decision was invisible to a mutation test that did not construct a pin. Also braces the two unbraced production ifs the review named. NOTE FOR ANYONE RUNNING THIS BRANCH: hl2_state_restore_test reports three unrelated CW-passband failures here. They are not caused by this change -- they reproduce with it stashed -- and they are already fixed on main by d5d1953, which reads restoredStateForTest() instead of a pre-connect snapshot. This branch is based on 2add355 and predates that. Refs: PR aethersdr#5402, review round 2. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01CkisdWQiVxcUG6r6X9W3Fg
…ot past it (aethersdr#5402 review). Principle XI. The reviewer made the mutation and it was invisible: reverting the snapshot line to the old unconditional `lnaByBand.insert(m_currentBandKey, m_lnaGainDb)` compiled cleanly and hl2_band_memory_test stayed green. My three "snapshot" checks called bandMemoryWriteback() directly, exactly as the write-back checks already did. They proved the policy decides correctly; nothing proved the snapshot writer asks it. So the regression moves to hl2_state_restore_test, which already builds an Hl2Backend socket-free against TEST-NET-1 and reads currentOperatingState() thirty times over. The new block runs the reviewer's own scenario through the production capture: restore 20 m at -12, connect with lnaGainDb=20, tune WITHIN 20 m. The tune is not a band change, so rememberCurrentBandState() never runs and the debounced capture is the only writer that reaches the map -- which is why this path persisted the pin long before the first band change could. Reverting the currentOperatingState() line now fails on the first check. WITH A PRESENCE CONTROL, because everything the fix asserts is an absence: a value that did not change. That would also pass if the map were simply unwritable through the capture, or if the pin had never happened and the live value had been -12 all along. So the block ends the pin the way an operator does -- band hop, return, setPanRfGain -- and shows the SAME assertion move to 5. Preservation, not a dead writer. Worth recording why this is the only observable scenario: a session pin is the one state in which live and stored legitimately differ. Every other path keeps them equal, which is exactly why the snapshot line's decision was invisible to a mutation test that did not construct a pin. Also braces the two unbraced production ifs the review named. NOTE FOR ANYONE RUNNING THIS BRANCH: hl2_state_restore_test reports three unrelated CW-passband failures here. They are not caused by this change -- they reproduce with it stashed -- and they are already fixed on main by d5d1953, which reads restoredStateForTest() instead of a pre-connect snapshot. This branch is based on 2add355 and predates that. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01CkisdWQiVxcUG6r6X9W3Fg
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Blocker fixed, at The regression now lives in Braces are on both new Two things a reviewer should not have to discover. This branch is based on |
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Head updated: subjects trimmed under the 72-character rule in |
…nciple X. The paragraph I added an hour ago said the bound is reasoned from one-receiver data "while the board reports four". True, and misleading: it implies a four-receiver first connect is an ordinary thing this timer might meet. Three things in the code say otherwise, all read rather than assumed. connectRadio() sets m_requestedNumRx = 1 unconditionally and raises it only for an explicit `numRx` CONNECT PARAM -- a saved count is deliberately not re-imposed, per the comment there -- and nothing in RadioModel passes that param. So an ordinary app connect opens exactly one chain. createPanadapter() refuses before m_connected, so a receiver the operator adds later opens its chain AFTER the phase this watchdog measures. It is outside the window entirely. receiverCeiling() is min(board, maxReceiversAtRate(rate, board)), and at 384 kHz -- the rate every measurement in the table used -- a 4-receiver board is honestly 3. A four-receiver run would have to change the rate, which changes the plan set, and the number would not belong in the same table as the ones it was meant to extend. What is actually reachable is an automation or embedder caller passing numRx>1 at connect: the same class of entry point as aethersdr#5402's lnaGainDb defect. That is the sentence, and it is a smaller worry than the one it replaces. Kept as a commit on top rather than an amend, because d0d6bb9 is pushed and a reviewer may already have read it. The correction is worth more visible than tidy. Credit: hl2-telemetry raised the ceiling and the post-connect guard against their own earlier framing; the m_requestedNumRx path is from reading connectRadio() here. Refs: PR aethersdr#5415, review round 2. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01CkisdWQiVxcUG6r6X9W3Fg
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A correction to our own commit metadata, disclosed rather than force-pushed a fourth time onto a branch you are reading. The commit on this branch cites XI's real gate is still outstanding here in any case: CI has never run on this head ( |
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@Ozy311 — your mutation is what made the last round's fix credible, and it found that the coverage was not. Head is Blocker — the production snapshot decision — The regression has moved to It carries a presence control, because everything the fix asserts is an absence — a value that does not change. That would pass equally if the map were unwritable through the capture, or if the pin had never happened and the live value had been Worth recording because it explains why the defect hid: a session pin is the only state in which the live gain and the stored entry legitimately differ. Every other path keeps them equal — which is exactly why a mutation test that did not construct a pin could not see the snapshot line's decision at all. Nit — unbraced production Nit — stale description. Rewritten. You were right on every count: it described One thing a reviewer will hit running this branch, so it is in the description too. They are not from this PR — they reproduce with the change stashed — and they are already fixed on |
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Issue fit
There is no fixes/closes #NNNN in the body — this is a self-reported defect, reviewed against its own stated intent. Per GOVERNANCE.md that is fine for a bug fix with a clear root cause, and the root cause here is legible from the code rather than asserted: before this diff, rememberCurrentBandState() wrote m_lnaGainDb unconditionally into m_lnaDbByBand, and currentOperatingState() did the same into the persisted map, so a connect that set the live gain from the lnaGainDb param would consume the start band's stored entry on the next write. The fix addresses that, and I confirmed both writers now route through bandMemoryWriteback() — those are the only two sites that write the persisted per-band LNA (m_lnaDbByBand is written at Hl2Backend.cpp:2907 (operator), :4304 (restore), :4543 (remember), and the snapshot at :4473; the first two are correctly outside the rule).
Ozy311's four items all landed: the snapshot path is protected (:4473), the production writer is now exercised through the real backend rather than the pure policy, the fabricated field-observation provenance is removed and explicitly retracted in the test header, and the braces are on every new control-flow body I can find in all three files.
I also verified Ozy311's premise about the snapshot being the earlier writer, since the whole second commit rests on it: RadioModel::persistOperatingState() (src/models/RadioModel.cpp:439-456) calls currentOperatingState() off m_operatingStateSaveTimer, armed by scheduleOperatingStateSave() from operatingStateChanged — and notifyOperatingStateChanged() fires on setPanRfGain and on tune paths that never reach a band change. The premise holds, and force=true (the disconnect flush) goes through the same call, so disconnect is covered too.
Verdict: yes, it solves the defect it describes, with the caveats in Nit 1 below about how far the guarantee reaches in the assembled app.
Scope
| File | What it changes | Claimed? | Verdict |
|---|---|---|---|
Hl2BandMemoryPolicy.h |
New header: connectLna(), bandMemoryWriteback(), clampDb() |
Yes | In scope. Not dead — Hl2Backend.cpp:1694, :4474, :4545 all evaluate it, and the test includes it |
Hl2Backend.cpp |
Connect seeding, pin clear in setPanRfGain, both writeback sites, pin clear on band change |
Yes | In scope |
Hl2Backend.h |
m_lnaSessionPin member + comment |
Yes | In scope |
tests/hl2_band_memory_test.cpp |
New policy-level test | Yes | In scope |
tests/hl2_state_restore_test.cpp |
New backend-level block (lines 391–475) | Yes (review commit) | In scope |
tests/tests.cmake |
Registers hl2_band_memory_test |
Yes | In scope |
Everything in the diff is explained by the stated fix. No build/CI churn, no unrelated files, no CHANGELOG.md entry, no new public/protocol surface (m_lnaSessionPin is private; the persisted rfGain/lnaDbByBand JSON shape and extensionSchemaVersion = 1 are unchanged, so no migration is needed). No - line removes a guard: the only deletions are the four lines of the old unconditional connect seeding, replaced by a superset. Nothing here is a preference change — no default moves, no UI behaviour changes, and the connect-param precedence is explicitly preserved rather than reversed.
Socket-test surface (recorded, not a finding): the modified hl2_state_restore_test block drives Hl2Backend::connectRadio(), which constructs a MetisClient and starts the hl2-io QThread (Hl2Backend.cpp:351, :400-404). The target is 192.0.2.1 (TEST-NET-1, unroutable) and the block follows the pattern the file already uses at lines 215, 233, 251, 347, 376. No new socket-owning target, no fake HL2 peer, no listener bound. hl2_state_restore_test is already registered at tests/tests.cmake:3254. Worth knowing: ci.yml:311 filters HL2 ctest to ^hl2_am_dcblock_test$, so neither the new nor the modified test gates a merge — green CI on this PR says nothing about either.
Blockers
None.
Nits (non-blocking)
-
The pin's guarantee stops at the backend seam — a client-side global RF-gain replay can still consume the entry.
src/gui/MainWindow_Session.cpp:1691-1708replays a saved band-agnostic RF gain throughm_radioModel.setPanRfGain()when the backend declaresClientSettingsDomain::RfGain— which the comment there says is currently HL2 only.MainWindow.cpp:10501does the same from a profile snapshot. Both land inHl2Backend::setPanRfGain(), which this PR makes clear the pin and which then writes the replayed value intom_lnaDbByBand[m_currentBandKey]— the entry the fix exists to protect. The write at:2907predates this PR, so this is not a regression the diff introduces, but it does bound the promise, and the new backend-level test cannot see it because it drivesHl2Backenddirectly. Reasoned from code; I could not run the app to establish the ordering between that replay and connect. Worth a sentence in the body (the SCOPE note in commit1b9b647already gestures at "a separate global RF-gain replay" — this is where it lives). -
applyRestoredState()'s full reset omitsm_lnaSessionPin(Hl2Backend.cpp:4182-4198). That block's own contract is "Live members reset to the same virgin defaults a fresh backend construction would have. (PR #4619 review, Ozy311 finding 1)" and the new member is a live member. It is currently masked —connectRadio()unconditionally assignsm_lnaSessionPin = seed.sessionPinat:1706, andm_currentBandKey.clear()at:4198makes both writeback sites no-op in the window between — so I could not construct a scenario where it misbehaves today. It is the documented reset seam and the omission is the same class Ozy311 already caught once. -
setPanRfGain's early return skips the pin clear.if (clamped == m_lnaGainDb) return;at:2897-2898sits abovem_lnaSessionPin = false;at:2905. So an operator who sets the gain to exactly the pinned value never ends the pin, and the header's "Cleared the moment the operator sets a gain themselves" is not quite true for that one input. Concretely: 20 m stored at −12, connect pinned at 20, operator moves the slider to 20 — no-op, pin survives, and the band keeps −12 instead of adopting the operator's choice. The failure direction is conservative (an old calibration is kept rather than lost), which is why this is a nit and not a finding. -
connectLna()returns the param branch unclamped (Hl2BandMemoryPolicy.h:58-62) while the restore branch clamps (:65). This exactly matches the pre-existingHl2Backend.cpp:1673-1674, so it is not a behaviour change — but the header is now presented as the decision, it takesminDb/maxDband ignores them on that path, andhl2_band_memory_testhas a clamp case for stored values only. Either clamp it or say in the header why the param is deliberately exempt.
What I tried to break
- Does the new test actually fail against the unfixed writer? Yes, as far as I can reason: with the snapshot line reverted to
lnaByBand.insert(m_currentBandKey, m_lnaGainDb),stored20m()returns 20 rather than −12 at line 452. The block is also honestly constructed against the "passes for the wrong reason" failure — thesetPanRfGain(panId, 5)presence control at the end rules out an unwritable map or a pin that never happened, and.toInt(999)rules out a missing key reading as 0. This is the mutation Ozy311 ran, and the block is aimed at it correctly. - Does the pin leak into a later band and make every subsequent band non-recordable? No.
applyPerBandStateForclears it at:4566, and — importantly — afterrememberCurrentBandState()at:4562, so the preserved write happens first. Reversing those two lines would silently break the fix; the ordering is right. - Can the live value diverge from what the pans show, or the dB reference drift? No.
m_dbRef.setLnaGainDb(m_lnaGainDb)at:1838runs unconditionally after all connect seeding, and the diff does not touchapplyLnaGainDb()— the pin refuses persistence only, exactly as the header claims. - Radio swap / second radio.
applyRestoredState({})clears the maps andm_currentBandKey, andconnectRadioreassigns the pin, so radio A's pin cannot govern radio B's writeback (see Nit 2 for the residual). - Sibling writers of the persisted map. I grepped every
m_lnaDbByBandsite; the two that needed the rule got it, and the operator/restore sites correctly did not. No third surface left carrying the defect. - Both writeback call sites pass identical arguments to
bandMemoryWriteback()— no transcription drift between:4474-4477and:4545-4548, which is the failure mode a two-call-site rule usually dies of. - Could not check: anything at runtime. I have no build and no way to drive the GUI, so every statement above is reasoned from the code in the head checkout, not reproduced. Nit 1's ordering in particular would be settled by an app-level run, not by reading.
Recommendation
Approve with nits. The mechanism is real, the seam is in the right place, the policy header genuinely is evaluated by production rather than copied, and the second commit fixes a real hole that the first one's test could not have found — the backend-level test now covers the production decision that the policy test cannot. The four nits are all either pre-existing behaviour surfaced by the new structure or robustness around a member that is currently always overwritten before use; none of them change the merge decision. Next step for the author: fold m_lnaSessionPin = false into the applyRestoredState reset block (Nit 2, one line), and add a sentence to the body about the global RF-gain replay boundary (Nit 1) so the fix's reach is stated rather than implied.
Thanks for the honest retraction of the field-observation provenance in the test header — "NO FIELD OBSERVATION IS CLAIMED FOR THIS MECHANISM" is a better artifact than the inference it replaced, and it made this review faster.
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Cisco CodeGuard — static analysis of this PR (18 finding(s))
Automated static scan by Cisco DefenseClaw CodeGuard on the changed files. Advisory — some may be false positives; the review above verifies them. 🤖 aethersdr-agent · cost: $4.5191 · model: claude-opus-5 |
Skip the legacy global display-gain replay only for HL2 while retaining its RfGain OperatingState domain. Exercise startup, per-band restoration, operator changes, persistence, and temporary connect overrides through socket-free production paths. Fixes aethersdr#5400
jensenpat
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Reviewed 7be1edd54fc1b52b9462f63cbe04d0a0f2fc744c after the operator directed takeover and expansion to include #5400.
The combined fix preserves HL2 per-band RF gain both during normal app startup and when a direct connection request supplies a temporary gain override. No Flex/Icom backend or model code changed. The HL2-only legacy replay guard preserves every other family's previous decision. The RfGain capability stays enabled so OperatingState continues to load/store the band map.
| Scope | Verification |
|---|---|
| HL2 connect, band writeback, snapshot, pin reset | Full production diff and callback/order tracing; real-backend socket-free tests |
| HL2-only GUI startup replay guard | Production restore helper called by MainWindow and exercised with the backend; non-HL2 compatibility controls |
| Persistence and regression tests | 3/3 focused tests, registered in tests.cmake; atomic store/load into a recreated backend |
| Documentation | Updated existing HL2 notes; no changelog entry |
The previous blockers are addressed: both persistence writers use the preservation policy; removing the production snapshot call fails the new test, rather than merely testing a copied policy; unsupported field attribution is corrected; the new conditionals are braced; the description now matches this scope. Removing the startup exclusion independently fails the original user-facing scenario. All mutations were restored, rebuilt, and the selected tests passed again.
Other thread notes: the pin resets in applyRestoredState, band-change clearing follows preservation, same-value setter no-ops and explicit connect-parameter range behavior remain unchanged and are disclosed. The suggested second replay in restoreBandState has no callers in the current tree.
Local verification: macOS/Qt 6.11.0, RelWithDebInfo, ENABLE_ASR=OFF; app plus hl2_gain_restore_test, hl2_band_memory_test, radio_state_memory_test built with -j22. Headless CTest 3/3 passed on the committed head. Engine boundary, registration, frozen CI gate, and whitespace checks passed. Current-main merge-tree was clean.
Bridge verification: isolated headless demo session, DEMO-0001, one pan/one slice, RF gain 0, no transmit, then disconnect. This is app-startup evidence, not HL2 hardware evidence. No physical radio was connected. The new HL2 regression skips discovery via boardMaxRx, never pumps the event loop, and cancels DSP setup before transport can start. The broader existing hl2_state_restore_test was not run because its other cases open UDP sockets.
Cost through local completion: approximately 15.7 minutes since scratch checkout creation; 2 configure calls, 6 build calls (one iconutil sandbox failure, one successful full build, two mutation builds, restoration build, commit-ID rebuild), 3/3 final tests, two expected mutation failures, 2 app launch attempts (one sandbox child exited before startup), 0 subagents. Compiler cache statistics and token counts unavailable. Prior reviews informed the scenarios; their build results were not reused.
CI: all five checks passed on the current PR head. The CI checkout is synthetic merge 664b5ca, whose parents are current main bc80177 and reviewed head 7be1edd. Linux/macOS compile the default graph; Windows builds the app and its platform gate targets. The three focused HL2/persistence tests above were run locally; they are not added to the frozen per-PR CI selection.
Technical verification is complete. Merge is withheld while the previous change-request reviews and discussion threads remain open. The prior review blocks have not been dismissed.
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@jensenpat — coordination follow-up on my earlier change requests, at The correction and coverage I requested are present in the current source: both persistence writers preserve an existing start-band entry during a temporary pin, and My own fresh execution was limited to the standalone policy test: 15 assertions pass, and replacing the stored-value preservation return with the live value fails two assertions; restored code passes. I source-inspected the production regression and read your current-head review for its independently reported build, real-backend regression, and mutation evidence. I did not rerun that expanded suite or the GUI startup path. Visible current-head CI checks are successful. This is a coordination/status comment closing the loop on my prior feedback, not a competing review, a claim takeover, a dismissal of the old review, or merge approval. |
Ozy311
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Re-reviewed a71edf6632cc0a288783284caee6b17983567fbb for the operator-requested release integration, after #5381 landed.
The fix preserves HL2 per-band RF gain across ordinary startup and explicit temporary connection overrides. Both production persistence writers honor the preservation policy, and the HL2-only startup replay guard leaves other radio families on their existing path. Our earlier snapshot, production-test coverage, provenance and brace findings are addressed. Jensenpat's completed technical review and assignment are preserved; the operator specifically directed this integration and approval/merge.
| Scope | Assessment |
|---|---|
| HL2 connect/persistence and GUI restore helper | Same reviewed RF-gain fix and production-writer coverage |
| HERMES documentation | Matches the expanded startup/override fix |
| Includes and tests.cmake integration | Preserved DSP-setup, overload and band-memory policy includes, all test registrations, and both settings consumers; computed merge delta against current main contains only this PR's intended nine files |
Blocking findings: none. Existing nonblocking same-value setter and explicit-parameter-range limitations remain disclosed; this integration does not alter them.
The final merge from landed main changes ancestry only: its complete tree59977d679a19af2e312e9a9e4cdbc97e871113c3 is identical to the locally tested54c737e6 tree.
Independent integration verification: built the combined production engine and focused targets on Apple Silicon macOS/Qt6.11.1, RelWithDebInfo (optional ASR/RADE/DFNR disabled). All four socket-free tests passed: hl2_gain_restore_test, hl2_band_memory_test, radio_state_memory_test and hl2_overload_policy_test. The gain regression uses the actual backend, supplies boardMaxRx to bypass discovery, does not pump events, and cancels queued DSP setup before Metis transport starts. The broader socket-owning hl2_state_restore_test was not run. Strict registration, engine-boundary and frozen-CI-gate checks and whitespace checks passed. No new mutation result is claimed; prior production snapshot/startup mutations are recorded in the earlier completed reviews.
Current-head platform CI and commit signatures were checked before approval. No fresh full application GUI session or live HL2/RF/TX test was performed for the mechanical integration. Every changed path, including the already-landed stack dependency, is reviewer-owned, and live Ozy311 membership is active.
Verdict: approve. This AI-assisted review through Ozy311 supersedes our previous change requests.
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@Ozy311 — your negative mutation is the reason this fix is real rather than The same-value setter. It is uncovered as well as unfixed. I will send a follow-up PR What nobody has run. You wrote that your fresh execution was limited to the I filed #5400 from a real HL2 One thing that should not have to be re-found. The second global-gain |
## Summary Follow-up to #5402, which merged with one disclosed nit unfixed: in `Hl2Backend::setPanRfGain` the equality early return ```cpp const int clamped = qBound(kLnaGainMinDb, gainDb, kLnaGainMaxDb); if (clamped == m_lnaGainDb) return; ``` sits **above** both `m_lnaSessionPin = false;` and the `m_lnaDbByBand.insert(...)` that follows it. So an operator who sets the gain to exactly the value already live neither ends a session pin nor records their band choice — and the one value guaranteed to be already live is the one a connect param pinned. Concretely: 20 m stored at −12, connect with `lnaGainDb=20`, the operator still on 20 m deliberately sets 20. The write is a no-op, the pin survives, and `currentOperatingState()` keeps persisting −12 for a band the operator has just told the radio they want at +20. This is the follow-up I committed to in #5402 (comment). Nothing else in the merged fix changes. **The window is narrow and worth saying plainly.** It is the **start band only**: after the first band change `applyPerBandStateFor` clears the pin, and without a pin `bandMemoryWriteback` returns the live value anyway. Reachability is also narrow — `lnaGainDb` is a connect param the shipped UI does not populate, so a pin needs an automation or embedder connect. And the failure direction is conservative: an old calibration survives rather than dying. That is exactly why @Ozy311 filed it as a non-blocking nit and why it should not have held #5402's merge. It is still wrong, and it was uncovered as well as unfixed. ## What changed, and why this shape The early return was protecting one thing that is genuinely redundant on an unchanged value: `applyLnaGainDb()`, which writes the AD9866 LNA register through `Metis`, moves `m_dbRef` and echoes `panRfGainChanged` to every pan. That stays guarded — an unchanged value is still not re-sent to the radio and still does not re-echo. Everything **below** it was never redundant. The pin clear and the band-map write are consequences of *the operator having chosen this value for this band*, and an operator who deliberately confirms the pinned value has chosen it just as much as one who moved the slider. So the guard now wraps only the register write, and the persistence half runs unconditionally. `notifyOperatingStateChanged()` is guarded on `moved || endedPin || recordedBand` so that a write which moves nothing, ends no pin and changes no stored entry does not schedule a debounced store for a no-op. Any of the three actually changing notifies exactly as before. ## Constitution principle honored **Principle VIII — Evidence Over Assertion.** The new assertions were run red against the unmodified merge base before the production change and green after; the exact commands and output are below. Not Principle XI: XI is the squash-merge CI re-run and the maintainer's reproduction, which is not mine to claim. ## Test plan Both directions were actually executed, in this worktree, in this order. **1. Test added first, built and run against unmodified `origin/main` (`10a566e3`) — RED:** ``` $ ninja -j 6 hl2_gain_restore_test # test file only, production untouched $ ./hl2_gain_restore_test ... [ OK ] connect seeding creates a usable pan identity [ OK ] same-value case starts pinned at +20 with 20m still stored as -12 [FAIL] an operator write of the pinned value itself records the band [FAIL] the confirmed value survives a band round trip instead of reverting to -12 ... exit status 1 — 26 checks pass, 2 fail ``` **2. Production change applied, incremental rebuild, same binary re-run — GREEN:** ``` $ ninja -j 6 hl2_gain_restore_test # rebuilds Hl2Backend.cpp.o and relinks $ ./hl2_gain_restore_test ... [ OK ] connect seeding creates a usable pan identity [ OK ] same-value case starts pinned at +20 with 20m still stored as -12 [ OK ] an operator write of the pinned value itself records the band [ OK ] the confirmed value survives a band round trip instead of reverting to -12 ... exit status 0 — 28 checks pass, 0 fail ``` The mutation is the one @Ozy311's #5402 review taught: the new assertion must fail on the merged code, not merely agree with a re-typed copy of the rule. That is also why the case is in `tests/hl2_gain_restore_test.cpp`, which drives the real `Hl2Backend`, rather than in the policy-header test. - [x] Local build passes — for the `hl2_gain_restore_test` target and its `aethercore` dependency (`ninja hl2_gain_restore_test`, exit 0). **A full `cmake --build build` was NOT run here** and the rest of the suite was NOT run here; CI covers both. - [ ] Behavior verified on a real radio — **not by me, not yet.** See below. - [x] Existing tests pass — the other 15 checks in `hl2_gain_restore_test` pass alongside the 3 new ones. Other test binaries were not built or run here. - [x] Reproduction steps documented — above. ### What still wants hardware, and who has it Separately from this diff: the half of #5402 that closes #5400 — the GUI startup replay — has landed on socket-free tests and a demo backend. @Ozy311 wrote that their fresh execution was limited to the standalone policy test and that they did not rerun the expanded suite or the GUI startup path; @jensenpat wrote that the bridge session was app-startup evidence, not HL2 hardware evidence, with no physical radio connected. I filed #5400 from a real Hermes-Lite 2 and still have it, so the operator here will confirm the merged behaviour on hardware across a genuine restart and report it on #5402 whether or not it agrees with the tests. That confirmation is not a precondition for this diff, which is a pure persistence-ordering fix with a test that fails without it. ## Checklist - [x] Commits are signed (SSH) - [x] No new flat-key `AppSettings` calls — no settings keys added - [x] Code is clean-room - [x] All meter UI uses `MeterSmoother` — no UI touched - [x] Documentation updated if user-visible behavior changed — none needed; this restores the behaviour the existing comment at the call site already describes ("This is also what ends a session pin") - [x] Security-sensitive changes reference a GHSA — n/a ## Deliberately not widened - `connectLna()`'s unclamped explicit-parameter branch (#5402 bot nit 4) is left alone — it was documented rather than deferred, and `Hl2BandMemoryPolicy.h` says so in its own comment. - `MainWindow::restoreBandState` is untouched. It calls `m_radioModel.setPanRfGain(snap.rfGain)` without going through `restoreLegacyRfGain`, so wiring it up would reintroduce #5400 exactly — but it has no callers anywhere in `src` or `tests` (only its declaration in `MainWindow.h:969` and its definition in `MainWindow.cpp:10614`). Dead, not broken. - No re-opening of the merged design, and no neighbouring refactor. 🤖 Generated with [Claude Code](https://claude.com/claude-code) https://claude.ai/code/session_014TtnKQu6QGrSeBirGeAsAs Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
HL2 startup could replay a band-agnostic display gain over the backend's restored per-band gain. For example, 20 m remembered at -12 dB was replaced by the legacy global +20 dB value. Startup now keeps the band's gain, and operator changes continue to save through the per-radio OperatingState document.
This also retains the original fix: an explicit
lnaGainDbconnection override controls the live gain without overwriting an existing start-band entry during a snapshot or band change.Fixes #5400.
Scope
The operator directed that HL2 retain per-band gain and that this PR include the startup fix. The legacy-replay exception applies only to
family == hl2. No Flex or Icom backend/model code or shared capability declarations changed. HL2 keeps itsRfGainpersistence domain, which is necessary for loading and saving its band map.Validation
-j22, Qt 6.11.0, RelWithDebInfo,ENABLE_ASR=OFF.hl2_gain_restore_test,hl2_band_memory_test,radio_state_memory_test.currentOperatingState()snapshot writer fails both override-preservation assertions. Restored fixes rebuilt and passed.git diff --checkpassed.boardMaxRxbypasses UDP discovery, the test never pumps the event loop, and it cancels pending DSP setup before Metis can start. The original snapshot regression was moved out ofhl2_state_restore_test, whose broader scenarios can open sockets; that target was not run.Existing band classification and transmit-owning-receiver selection are unchanged. The unused
restoreBandState()helper has no callers and is not a second active startup path. Explicit connection-parameter range handling and the no-op behavior when setting the already-live gain are unchanged.Generated with OpenAI Codex (GPT-6 Astra)