A second profile is usually the same operator with a different rig or a
different locator — same callsign, same cards. Having to redraw a design
because the antenna changed is work nobody should do.
The designer now lists the designs the active profile cannot see and copies a
chosen one into it. Designs it already sees — its own, and the shared ones —
are left out: they are not something to copy.
A COPY, not a move or a share. The original profile keeps its design untouched
and the duplicate is free to diverge, which it usually will: a second profile
exists because something differs, and that something often ends up on the card.
The PICTURES are copied too, and that is the part worth getting right. Stored
documents reference photos by name relative to the template's own asset folder,
so duplicating the JSON alone would point the new design at files that are not
in its folder. It is validated against its own folder afterwards, and a failure
rolls the row back rather than leaving a design whose pictures are missing.
Sharing the source's folder was the other option and a worse one: deleting
either design would then have emptied the other.
From a user's log, repeating throughout the session:
rigctld: split off failed: cat: this radio's backend cannot set split
rigctld: unimplemented command "X PKTUSB -1"
Both are answered with an error, and JTDX treats a rig-control error as fatal:
it abandoned a transmission 0.86 seconds into a 13.8-second frame.
"S 0" — split OFF. Fake It uses no split, and JTDX still sends this to be sure.
A backend that cannot SET split was refusing a request that was ALREADY
satisfied. It now succeeds when the rig is simplex, without touching the rig at
all. Arming still fails loudly: there the request is real and unmet, and a
client that believes it transmits up the band while the radio sits on the DX's
frequency is exactly what that refusal exists to prevent.
"X <mode>" — set_split_mode. Sent during ordinary setup, Fake It included,
where there is no second VFO to give a mode to. Accepted now: applied when a
split is in force, and a plain success otherwise, because the transmit VFO
already has that mode — it is the same VFO. get_split_mode answers to match.
Both regressions fail without the fix with the exact codes from that log,
RPRT -9 and RPRT -11.
Only PTT transitions were recorded. So when JTDX aborted a transmission
0.86 seconds into a 13.8-second frame, the log showed the abort and the Fake It
frequency restore around it — and not the command that preceded them, which is
the one thing needed to tell whether OpsLog answered something the client could
not accept.
Behind the existing CAT wire-trace switch rather than a new one: this is a line
per poll and would drown an ordinary log, and an operator chasing a rig-control
fault turns that trace on already.
The first version was a single switch meaning "command them all", and that is
wrong the moment a station has three: two SPE on a combiner and a PowerGenius
on another antenna would all go into OPERATE together, keying an amplifier that
has nothing to do with the pair.
It is now a set. Each amplifier is ticked into the group or not, the group is
stored as a list of ids, and an amplifier outside it keeps its own buttons —
which is the entire point of it being a set.
A group of fewer than two members is stored as none: one amplifier coupled to
itself would make every command fan out to a single member for ever.
A remembered member that is no longer running is skipped rather than failing
the command — deleting one amplifier must not break the button on the other.
An amplifier saved without an id cannot join, and the panel says so instead of
quietly omitting it from the list.
It sat above the first amplifier card. With three cards configured — the case
it exists for — that is a scroll away from anything the operator is looking at,
and it was reported as missing rather than misplaced.
Moved next to Add amplifier: coupling belongs to the SET of amplifiers, not to
any one of them, so it belongs with the other set-level control.
The SPE CO1-2 combiner is an RF device: it sums two amplifiers and commands
nothing. So "combined" operation is really two amplifiers that must be held in
the same state, and one left in STANDBY while the other keys means the combiner
sees power on a single input.
A switch in Settings → Amplifier makes ON, OFF and OPERATE act on every
configured amplifier. Offered only with two or more: coupling one amplifier to
itself is a switch that cannot do anything.
The METERS stay per amplifier, deliberately. Two amps combined are still two
amps, and an operator watching for one of them to run away needs to see them
apart — a summed bar would hide exactly the fault worth catching.
Fanned out in AmpOperate/AmpPower rather than in the UI: the card and the docked
widget both call these, and a coupling built into one would be missing from the
other, which on a combiner means one amplifier keyed and one not. The clicked
amplifier goes first, so a partial failure still did what the operator asked
before it stopped.
While linked, an amplifier with no power command — a PGXL on its direct link —
is skipped silently rather than reported: it would make a successful pair look
broken.
RI1FJL/MM resolved to Franz Josef Land while the expedition was still sailing
there, telling the operator they had worked an entity they had not.
The old behaviour was deliberate — the comment read "strict DXCC says no
entity, but the log should still show the operator's country" — and that is
wrong for exactly this reason. A home country on a maritime mobile is not extra
information; it is a false claim about where the contact happened, and it is
the kind of false claim that gets a QSO submitted for an award it cannot win.
Trailing only. A LEADING "MM" is the Scotland prefix and "AM" is Spain, so
MM0ABC and AM5X keep their entities — getting that wrong would be a far larger
error than the one being fixed. /P, /M and /B are unaffected: a portable
station is still ashore.
In the cluster the column says "Maritime mobile — no DXCC" rather than going
blank, because blank is what an UNRESOLVED spot looks like and the two mean
opposite things — one is "we don't know yet", this is "there is nothing to
know". Display only: the QSO's own Country stays empty, since that field holds
a DXCC entity name and there is none.
ADIF defines CNTY as "STATE,COUNTY" — "GA,BARROW". OpsLog wrote the bare county
name, which a receiving logger cannot resolve: county names repeat across
states, and there is a Washington County in thirty of them. The award engine
here was never affected, since it reads the columns rather than the ADIF; the
damage was to every file we hand to someone else.
One writer covers everything — writeRecord — so this fixes file exports and the
LoTW, Club Log, HRDLog and QRZ uploads together. MY_CNTY gets the same
treatment.
The county alone is still written when no state is known: a bare name is worth
more than nothing, and inventing a prefix would be worse than either. A value
that already carries a comma passes through untouched, so re-exporting an
imported record cannot double the prefix.
Import is the mirror: "GA,BARROW" fills both columns, and a file carrying the
bare county — as OpsLog's own older exports do — still imports unchanged. The
state parsed out of CNTY only fills a blank STATE, never overrides it: STATE is
the dedicated field and the more specific statement.
"An existing connection was forcibly closed by the remote host" during DATA
reads the same whether the server refused the SIZE, hit an hourly quota, or
simply dropped the socket — and only the first is something an operator can act
on. The message now carries host:port, the encryption in use and the total
attachment size, so the size can be ruled in or out without a second attempt.
A path that does not exist is not counted: the mail library skips it, so
reporting it would describe a message that was never sent.
Puts "F4BPO is on air 14,074,000 FT8 IC-7300" on hrdlog.net's front page while
the station is operating, which is what HRDLog's own "Automatic HRDLog ON AIR"
setting does.
The endpoint and its field names come from HRDLog's own library
(github.com/iw1qlh/HRDLOG-net-library, HrdProtocol.SendOnAirAsync): OnAir.aspx,
with Frequency in Hz, Mode, Radio, Callsign, Code and App. Read rather than
guessed — an invented endpoint would have produced a switch that silently did
nothing.
HTTPS where that library uses plain HTTP: the upload code is a credential and
has no business crossing the network in clear, and the sibling NewEntry
endpoint on the same host already serves TLS.
A heartbeat every two minutes, not a change notification — HRDLog drops a
station from the list when it stops hearing from it. Silent when switched off,
unconfigured, or when the rig reports no frequency: announcing 0 Hz would say
the operator is on air on nothing. Failures are logged, never toasted; a
broadcast the operator did not ask for at that instant must not interrupt them
every two minutes on a flaky link.
Its own switch beside auto-upload rather than folded into it: this is a live
status and needs the rig readable, not a QSO.
compactH was 158px, "tuned so the compact entry strip fits in a single row".
A constant tuned against a layout stops being true the moment the layout
changes, and this one outlived a strip that had since shrunk — leaving about
70px of empty window under the fields.
The frontend now measures what it rendered and asks for that height, watched by
a ResizeObserver so a strip that wraps at a narrow width is followed too. The
topbar is added as its declared h-8 rather than measured, since it is fixed.
Bounded in the backend: a measurement of zero — a layout not yet painted —
must not collapse the window, and the call is ignored unless compact is on so
nothing can shrink the normal window. Rounded to whole pixels so a sub-pixel
reflow cannot start a resize loop.
It went under the Station Control rotator; the compass that wanted it is the
docked one beside the entry strip. Both are the same RotorCompass, so the
readout moves INTO that component: every compass in the app carries it, and no
caller draws its own.
The bezel already showed the short path as a red marker, but a marker is a
direction, not a number — and the numbers in the status bar are 10px, which is
what prompted this.
Clickable only when the caller passed onGoto, since a compass rendered without
one cannot turn anything and a button that does nothing is worse than a label.
The same pair already sits in the status bar, where it is 10px and several
operators reported not being able to read it. Repeated under the compass at a
size that can be read across a shack.
Clickable, like the ones in the status bar: a heading you can see and not act
on would be a step backwards from what is already there. Disabled and dashed
when no station is entered, rather than showing a heading to nowhere.
The same answer the Details tab already gave, moved to where the county is now
typed — a badge in a tab nobody has open while working a station is a badge
that does not do its job.
Debounced at 300 ms and keyed on state + county together: the field is typed
into as well as filled by the lookup, and the check queries the log. A county
name means nothing without its state, so both have to settle before asking.
The looked-up values now sit directly under the geography line they continue —
QTH, State, locator, then county and zones — and the free-text fields close the
block. Reading order follows what the lookup fills, rather than interleaving it
with what the operator types.
Comment and Note moving onto one line left the right column two rows shorter
than the left, and this fills it: county, both zones and the ADIF entity
number. All four are filled by the lookup and were only visible after opening a
tab — the wrong place for values an operator wants to SEE are right before
pressing Log.
County is a name, not a code ("St. Tammany Parish"), so it takes the flexible
width and the three numbers get fixed narrow boxes.
Cleared numeric fields store undefined, not 0. Zero is a real DXCC number and a
real zone, so an empty box has to stay empty rather than assert something the
operator did not type.
State stays up on the geography line beside QTH and the locator, which is how
the lookup fills them and how they are read.
stateBlock was built and then not placed in the row — the field simply did not
exist on screen. Now between QTH and the locator, where it was meant to go.
Left column 210 → 230px, and Comment and Note move onto ONE line side by side:
two fields that are usually a few words each were taking two full rows of the
entry strip. That frees a row for whatever goes there next.
Name, Band, Mode and Country go from 300px to 210px, which moves QTH, Comment
and Note left by the same amount. The width is set in TWO places — the Name row
and the Band/Mode/Country stack below it — and they have to stay equal or the
two rows stop lining up, so both were changed together.
State goes between QTH and the locator: it is part of the same "where is this
station" reading, and it is what WAS and the US county work key off. Narrow,
since it holds two or three characters, and upper-cased on the way in like the
other coded fields.
The Name label in this layout was hardcoded English while its twin went through
t(); fixed while here.
A log greets an operator; it does not address an envelope. "Robert Smith"
filled the Name field with something no one would ever send on the air, and it
is the first name that gets used when the contact is answered.
So fname alone, with the surname kept only as a last resort for a record that
has no first name at all — better a surname than an empty field. The nickname
option now falls back to the first name too, which is what it should have done
from the start.
joinName went with it: nothing composed a name any more.
QRZ publishes <nickname> — the name an operator goes BY on the air — and
OpsLog was composing fname + name instead. "Bob" is what belongs in a log;
"Robert J Smith" is what belongs on a licence.
QRZ only, and deliberately so: HamQTH's <nick> already fills the Name field
that way, so the same switch there would toggle a behaviour it has no way to
turn off.
A published nickname is optional, so an empty one falls through to the
registered name. That is the whole point of it being a fallback rather than a
swap, and it is what the test pins — a blank nickname must never blank the
name.
Spots were bounded by COUNT alone, so on a quiet band a two-hour-old spot sat
on the band map looking like something to chase. Settings → DX Cluster now
takes a lifetime: presets at 5/10/15/30/60 minutes, or any value up to twelve
hours, and 0 keeps the old behaviour.
Spots are REMOVED from the shared list rather than hidden at render. The
cluster list, every band map and the counts all read that one array, so pruning
it once is what makes the setting mean the same thing in every view — the
lesson already paid for when the band map ignored the cluster's filters. It
also gives the memory back.
A spot whose timestamp will not parse is never dropped: an unreadable stamp is
a reason to distrust the clock, not to throw away the spot.
Swept every 30 seconds — close enough that a 5-minute setting is honoured, and
invisible next to the spot stream. Clamped in the backend as well as the UI.
Reported on BH2SWB and 4X9AA: both flagged NEW PFX, neither ever worked, both
vanished the moment "hide worked" went on.
The predicate hid a spot when worked_call OR status === 'worked' — and that
second one is the ENTITY's status, not the callsign's. So any spot in an entity
worked years ago disappeared, however new it was for something else.
The extra markers are orthogonal to the entity status; the band map already
says so in as many words. They now win: a new prefix, county, grid or park is
never hidden, whatever the entity says. A worked entity that is new for nothing
is still hidden, which is what the filter is for.
Extracted to spotIsWorked in lib/spotDisplay, beside the other rule the cluster
and band map share, rather than left inline in a predicate that has already
grown once.
This repo has no frontend test runner, so this is verified by build and reading
rather than by a test.
Replaces the four fixed rules with the model Logger32 uses and the operator
asked for: Worked / Confirmed / QSL sent / To be sent, and inside each, which
channels count — paper QSL, LoTW, eQSL, QRZ.com. No ticks means every channel,
because a rule the operator has not narrowed must not quietly become a rule
about nothing.
"To be sent" is FIRST in the order, and that is the substantive decision here.
A contact can be confirmed on LoTW and still owe a paper card; the colour an
operator scans for is the one meaning "something is still owed". Placed after
"confirmed" that row goes green and the card never gets printed.
"Worked" is the catch-all — nothing sent, nothing requested, nothing back — and
is off by default, since turning it on paints every remaining row.
R and Q both count as owed: ADIF says requested and queued, and both mean the
card has not gone out.
"The ON button does nothing" has three different causes — the modem-line pulse
was refused, the pulse went out and the amplifier ignored it, or the amplifier
woke and the UI missed it — and the log could not separate them: it recorded
one combined error and never said whether the amp came up.
RTS and DTR are now reported separately (not every USB-serial chip honours the
modem lines, and some refuse them without saying so), alongside the model and
transport. A watcher then logs whether the amplifier answered within 15
seconds, off the caller's goroutine so the click still returns at once.
No change to the wake sequence itself, which is the part that took a long time
to get right on the 1.3K-FA.
"Was the grid in what WSJT-X sent, or did OpsLog put it there?" is the first
question asked when a contact is logged in the wrong square, and a byte count
cannot answer it. An expedition logged at its licence holder's home QTH stayed
undiagnosable for exactly that reason.
One line per QSO, around 280 bytes, whitespace collapsed so the record sits on
a single line.
Grid: RI0FA transmitted QN35 all evening and was logged with its licence
holder's home square. WSJT-X's logged ADIF usually carries no GRIDSQUARE, so
the lookup was the only source left — and QRZ/HamQTH describe where an operator
LIVES, which for an expedition is the wrong side of the planet.
The square heard on the air is now applied before the lookup runs, so
refineGrid has something to defend. It still upgrades a 4-character square to a
6-character one from the same field, and still refuses a finer square from a
different field.
SPE: decodeCSV marks the client connected on every frame it parses, and the
poll goroutine can be mid-read while PowerOff runs. The frame from a second ago
landed after PowerOff had marked the amp offline and put it straight back,
which is why OFF had to be pressed twice.
Frames are ignored for three seconds after the off key goes out — the window is
opened before the key is sent, so nothing already travelling can beat it. Time
bounded rather than latched: an amp switched back on at its own front panel has
to reappear without being told.
Reported: ten fresh contacts upload and appear on LoTW; twenty older ones,
bulk-edited to exactly the same LOTW_SENT/RCVD state, are accepted by OpsLog
and never arrive. The operator's reading was that a failed attempt could not be
overridden. It is simpler and worse than that.
TQSL's exit codes, from its own cmdline documentation:
8 NO QSOs were processed — already uploaded OR OUT OF DATE RANGE
9 some processed, some ignored — same two reasons
14 some already uploaded, the rest signed
8 and 9 were both read as plain success. So on 8 — nothing uploaded at all —
OpsLog announced "already uploaded (duplicate)" and stamped every selected
contact as sent. They were never on LoTW and now looked as if they were, which
is exactly the reported symptom, and it is not recoverable by re-uploading
because the operator has no reason to try.
"Out of date range" is the cause that bites here: a contact older than the
callsign certificate's validity is silently left out. Older QSOs failing while
today's succeed is the signature.
Now: 8 is a failure and nothing is stamped — a duplicate left at "R" is
harmless and will be refused again, whereas a contact wrongly marked sent is
one nobody will look at twice. 9 and 14 succeed but carry Ignored, and the
caller says so in the console and a toast.
TQSL's own sentence ("20 QSO records are out of date range") is captured and
shown. It was being read and thrown away, and it is the whole answer to "why is
my contact not on LoTW".
Two BandMap instances, and cleaning up a duplicated attribute took the prop off
the docked one as well as the copy. The multi-band tab drew the badge; the map
beside the entry form — the one actually in front of the operator — did not.
Logger32 draws a green square for a LoTW user and an X for a worked one. The
square is the part worth copying; the way it is drawn is not.
Colour on this map is already spoken for — it carries the entity status, and
the left edge of each pill stacks the new-park / new-county markers. Adding a
green fill for LoTW would put two unrelated meanings on one channel, and an
operator would have to work out which green meant what. So it is the same "L"
badge the cluster list draws, in the same muted blue, for the reason written
there: whether a station uploads to LoTW says nothing about whether the spot is
worth chasing.
Worked stations already read as worked here — the pill goes grey and the
status markers speak — so no X is needed.
Switchable in Settings → Appearance, and on by default: a `configured` flag
distinguishes "saved with this off" from "saved before the option existed", so
turning it off sticks instead of being undone by the next default.
The band map received the raw spot stream filtered by band alone, so none of
the cluster's filters reached it: switching on "LoTW users only" changed the
list and left the panadapter showing everyone. The same was true of hide
worked, the spotter continent, and the status and mode chips.
The predicate is extracted and shared rather than copied — two views of one
spot stream disagreeing about the same spot is the fault lib/spotDisplay
already exists to prevent, and a second copy would have drifted the first time
a filter was added.
The BAND filter is deliberately excluded from the shared part: a band map's
band is its filter, and applying the cluster's would empty every map but one.
The first version filled the whole row at 24%, and in a real log that meant
every row was painted: nearly every contact has SOME QSL state, so colour was
present everywhere and stopped being information — a striped background with
the data behind it.
The default is now a 3px stripe down the left edge. Same signal, nothing lost
to read it. A filled row is still offered, with a strength slider, for
operators who want the block — and the rule cards in Settings preview whichever
is chosen, so the decision is made by looking rather than by imagining.
Drawn as an inset shadow rather than a border: a border would shift the cells
three pixels on coloured rows only, and the columns would stop lining up.
Style and strength are normalised rather than rejected — a value out of range
is a slider that got away, not a reason to reset the operator's colours.
The "to send" rule only looked at qsl_sent, so a contact waiting to go to LoTW
— marked R, and the commonest not-gone-out-yet state in a digital log — matched
nothing and stayed uncoloured. It now covers any route still queued, and the
label says so.
New Settings → Appearance section: whole-row colouring in the log grid driven
by QSL / LoTW state, each rule with its own colour from a palette or a free
picker. What Logger32 does, with one difference that matters — the colour is
applied as a 24% tint, not a fill. Logger32's grid is white; this one is dark,
and a saturated user-picked colour behind white text is unreadable at exactly
the moment the operator is scanning for what still needs sending.
Rules are ORDERED and the first match wins, because a contact is usually
several of these at once: one confirmed on LoTW and by card is confirmed, not
"sent, awaiting reply". The order lives in the data so the panel can show the
rules in the order they actually apply, numbered.
The colour is interpolated into a CSS color-mix(), so anything that is not
plainly #rrggbb is refused on the way in and falls back to the default.
Also fixes the QSO number column, which was empty for contacts logged from
WSJT-X: that path inserts through the repo directly and never reached AddQSO.
Rather than chase each of the remaining bulk-insert paths — the POTA hunter
import and the LoTW/QRZ "add what I was missing" passes, which insert OLD
dates and so shift every number after them — the index now checks its length
against a COUNT and rebuilds when they disagree. One indexed count beats
remembering to invalidate in a place that does not exist yet.
OrderedIDs scanned qso_date straight into a time.Time. The column holds a
formatted STRING — the repo writes it with Format(isoMillis) and reads it back
through parseTimeLoose everywhere else — so the scan failed on every call, the
index was never built, and omitempty then dropped the zero from the JSON. A
column that shipped blank.
Scans the string and parses only the newest row; the ordering already came from
SQL, so 30 000 parses were never needed.
Tested against a real SQLite file with the date stored exactly as the repo
writes it, and with the ids running opposite to the dates — the imported-ADIF
case that is the whole reason this is not the id. It fails without the fix with
the scan error itself.
Not the id: the primary key follows insertion order, so importing an old ADIF
gives the oldest contacts the highest ids. This is a rank over qso_date.
Computed over the WHOLE log, not the query result — ranking inside the result
would renumber every contact the moment a filter is applied, and QSO #1 would
change identity as the operator typed.
Held as one id-to-rank map, built from a single ordered id query and dropped
with the other derived indexes when the log changes. A contact logged from the
entry form is the newest, so it takes the next number without rereading the
log: AddQSO deliberately avoids full invalidation because a contest run would
pay for it once per QSO. A contact entered with an OLDER date belongs in the
middle of the order, so there the map is dropped and rebuilt rather than
mis-numbered.
A batch that never reaches the disk looks exactly like one that does: the
locators are in memory either way until the next restart, which is the one
moment the difference shows. The shutdown flush was the least observable of
all — it runs last, and nothing said whether it had written anything.
Audit of every field a lookup returns against what OpsLog can store, prompted
by a report that HamQTH was not fetching the email.
The email was never broken: pinned now against a captured HamQTH answer, it
parses and reaches the QSO. The reported callsign simply has no public address
on HamQTH, which the empty field could not distinguish from a fault — so the
"[email protected]" placeholder is gone. A greyed-out sample address in the one
field an operator checks to see whether the lookup found one reads as a value.
Real gaps found and closed:
- web: the qso table has had the column since migration 0003 and no provider
mapping ever read it. HamQTH sends <web>.
- picture: Result.ImageURL was documented "QRZ only" because HamQTH's element
is <picture>, not <image>. It was there all along.
- zip: sent by both providers, read by neither.
- adr_name: used only as a fallback when a record carries neither nick nor
name. Deliberately NOT preferred over <nick> — a log wants the name the
operator goes by on the air, "Igor", not "Igor Vladimirovich Getman".
The parse tests use a real captured payload, including the stray <div> advert
the server injects into its own XML.
The chips in Settings only ever shaped the PSK Reporter SUBSCRIPTION. Neither
feed path checked them: both asked bandopen.Watched, which says which bands the
detector is capable of and knows nothing about the selection. So the cluster
path announced every watched band regardless, and widening the subscription to
"+" for grid chasing let PSK Reporter do the same — a station with only 6 m
ticked got 10 m and 2 m badges.
The selection is now cached beside the on/off flag and checked on both paths,
and unticking a band puts its badge out: badges fade on a timer fed by spots
the detector no longer looks at, so it would otherwise stay lit until a
restart.
The store shipped without its main source. Locators came only from this
station's own WSJT-X decodes, which is what the whole MQTT discussion was
about.
PSK Reporter now feeds it through a new OnGrid callback, fired before any
geographic filtering: what the store wants is "which square is this callsign
in", and that is true whoever happened to hear the report.
The subscription filters on the RECEIVER's square, a level the v2 topic
exposes. Measured on the live feed: the four opening bands unfiltered are 83
messages a second, of which roughly one in a hundred survived the NearKm test
that already existed here — the rest was received, TLS-decrypted, JSON-parsed
and discarded. One ring of squares is 0.2 to 1.2 a second.
By square rather than by DXCC, which was the obvious alternative: one country
measured 1.2 messages a second (OH) against 72.5 (K) on a single band, because
a DXCC can be a continent. By square the same measurement is 0.2 to 1.2, so the
load follows distance — what the feed is actually about — and is the same for
every operator.
Grid chasing subscribes with the "+" band wildcard, so one subscription per
square covers every band instead of one per band per square.
The store gains a source column (decode | mqtt), migrated in place on an
existing file.
The callsign->grid map died with the process. Every restart began with an empty
Locator column that took an hour of listening to refill, and everything learnt
the day before was thrown away.
internal/gridcache is its own SQLite file in the data directory, not a table in
the settings database: that one sits wherever the operator chose to put it,
often a synchronised folder, and a store that rewrites itself every minute has
no business there. Deleting the file costs a few days of listening and nothing
else.
Callsign is the primary key and the newest report wins — operators move, go
portable, go on expedition, and a stale locator is worse than none for grid
chasing because it reads as a square already worked. Entries not seen in two
years are pruned at open: that is the one way this cache can be actively wrong
rather than merely empty, and it is what bounds a store that would otherwise
only grow.
Only CHANGES are queued. The feeds repeat themselves, so writing every report
would put the whole stream in the batch instead of the news in it. Batches
flush on a timer and on shutdown — a restart is exactly when the cache is worth
the most.
Rotation is switched off while the store is attached: the cap would discard
callsigns the database still holds and the lookup would then miss what we know.
Age in the store is the bound instead.
The cache dropped EVERY entry once it passed 20 000. That was survivable while
the only feed was this station's own WSJT-X decodes, which never reached the
ceiling — it is a cliff for anything larger, and every locator in the cluster
list would disappear at once, periodically, for no reason the operator could
see.
Two generations: when the current map fills it becomes the previous one and a
fresh map takes over; lookups consult both. A rotation therefore costs the
older half and nothing more. It needs no insertion order, no per-entry
timestamp and no bookkeeping on the write path — all of which "evict the
oldest thousand" would require, on a path that runs once per decode.
The cap is 100 000, measured at 82 bytes an entry: 8 MB a generation, 16 MB
for both. 20 000 was chosen when the ceiling was unreachable anyway.
Both maps now go through rememberDecodeGrid / lookupDecodeGrid. Rotation swaps
the map headers, so the read had to be guarded; routing every access through
one accessor is what makes that checkable rather than remembered.
rouggy