2 # The RBN connection system
4 # Copyright (c) 2020 Dirk Koopman G1TLH
21 use Math::Round qw(nearest nearest_floor);
23 use Time::HiRes qw(gettimeofday);
70 our $DATA_VERSION = 1;
72 our @ISA = qw(DXChannel);
74 our $startup_delay = 5*60; # don't send anything out until this timer has expired
75 # this is to allow the feed to "warm up" with duplicates
76 # so that the "big rush" doesn't happen.
78 our $minspottime = 30*60; # the time between respots of a callsign - if a call is
79 # still being spotted (on the same freq) and it has been
80 # spotted before, it's spotted again after this time
81 # until the next minspottime has passed.
83 our $beacontime = 5*60; # same as minspottime, but for beacons (and shorter)
85 our $dwelltime = 10; # the amount of time to wait for duplicates before issuing
86 # a spot to the user (no doubt waiting with bated breath).
88 our $limbotime = 5*60; # if there are fewer than $minqual candidates and $dwelltime
89 # has expired then allow this spot to live a bit longer. It may
90 # simply be that it is not in standard spot coverage. (ask G4PIQ
93 our $filterdef = $Spot::filterdef; # we use the same filter as the Spot system. Can't think why :-).
95 my $spots; # the GLOBAL spot cache
97 my %runtime; # how long each channel has been running
99 our $cachefn = localdata('rbn_cache');
100 our $cache_valid = 4*60; # The cache file is considered valid if it is not more than this old
102 our $maxqrgdiff = 10; # the maximum
103 our $minqual = 2; # the minimum quality we will accept for output
104 our $maxqual = 9; # if there is enough quality, then short circuit any remaining dwelltime.
107 my $noinrush = 0; # override the inrushpreventor if set
108 our $maxdeviants = 5; # the number of deviant QRGs to record for skimmer records
117 $spots = {VERSION=>$DATA_VERSION};
119 if (defined $DB::VERSION) {
128 my $self = DXChannel::alloc(@_);
130 # routing, this must go out here to prevent race condx
137 $self->{nouser} = {};
139 $self->{noraw10} = 0;
140 $self->{nospot10} = 0;
141 $self->{nouser10} = {};
142 $self->{norbn10} = 0;
143 $self->{nospothour} = 0;
144 $self->{nouserhour} = {};
145 $self->{norbnhour} = 0;
146 $self->{norawhour} = 0;
148 $self->{lasttime} = $main::systime;
149 $self->{minspottime} = $minspottime;
150 $self->{beacontime} = $beacontime;
151 $self->{showstats} = 0;
152 $self->{pingint} = 0;
153 $self->{nopings} = 0;
161 my ($self, $line, $sort) = @_;
162 my $user = $self->{user};
163 my $call = $self->{call};
164 my $name = $user->{name};
167 my $host = $self->{conn}->peerhost;
169 $self->{hostname} = $host;
171 $self->{name} = $name ? $name : $call;
172 $self->state('prompt'); # a bit of room for further expansion, passwords etc
173 $self->{lang} = $user->lang || $main::lang || 'en';
174 if ($line =~ /host=/) {
175 my ($h) = $line =~ /host=(\d+\.\d+\.\d+\.\d+)/;
176 $line =~ s/\s*host=\d+\.\d+\.\d+\.\d+// if $h;
178 ($h) = $line =~ /host=([\da..fA..F:]+)/;
179 $line =~ s/\s*host=[\da..fA..F:]+// if $h;
183 $self->{hostname} = $h;
186 $self->{width} = 80 unless $self->{width} && $self->{width} > 80;
187 $self->{consort} = $line; # save the connection type
189 LogDbg('DXCommand', "$call connected from $self->{hostname}");
191 # set some necessary flags on the user if they are connecting
192 $self->{registered} = 1;
193 # sort out privilege reduction
198 $nossid =~ s/-\d+$//;
200 $self->{inrbnfilter} = Filter::read_in('rbn', $call, 1)
201 || Filter::read_in('rbn', 'node_default', 1);
203 # clean up qra locators
204 my $qra = $user->qra;
205 $qra = undef if ($qra && !DXBearing::is_qra($qra));
207 my $lat = $user->lat;
208 my $long = $user->long;
209 $user->qra(DXBearing::lltoqra($lat, $long)) if (defined $lat && defined $long);
212 # if we have been running and stopped for a while
213 # if the cache is warm enough don't operate the inrush preventor
214 $self->{inrushpreventor} = exists $runtime{$call} && $runtime{$call} > $startup_delay || $noinrush ? 0 : $main::systime + $startup_delay;
215 dbg("RBN: noinrush: $noinrush, setting inrushpreventor on $self->{call} to $self->{inrushpreventor}");
218 my @queue; # the queue of spots ready to send
225 my $dbgrbn = isdbg('rbn');
227 # remove leading and trailing spaces
234 my $now = $main::systime;
237 dbg "RBN:RAW,$line" if isdbg('rbnraw');
238 return unless $line=~/^DX\s+de/;
240 my (undef, undef, $origin, $qrg, $call, $mode, $s, $m, $spd, $u, $sort, $t, $tx) = split /[:\s]+/, $line;
242 # fix up FT8 spots from 7001
243 $t = $u, $u = '' if !$t && is_ztime($u);
244 $t = $sort, $sort = '' if !$t && is_ztime($sort);
245 my $qra = $spd, $spd = '' if is_qra($spd);
248 # is this anything like a callsign?
249 unless (is_callsign($call)) {
250 dbg("RBN: ERROR $call from $origin on $qrg is invalid, dumped");
254 # remove all extraneous crap from the origin - just leave the base callsign
255 my $norigin = basecall($origin);
257 dbg("RBN: ERROR '$origin' is an invalid callsign, dumped");
262 # is this callsign in badspotter list?
263 if ($DXProt::badspotter->in($origin) || $DXProt::badnode->in($origin)) {
264 dbg("RBN: ERROR $origin is a bad spotter/node, dumped");
269 unless ($qrg =~ /^\d+\.\d{1,3}$/) {
270 dbg("RBN: ERROR qrg $qrg from $origin invalid, dumped");
277 dbg qq{RBN:input decode or:$origin qr:$qrg ca:$call mo:$mode s:$s m:$m sp:$spd u:$u sort:$sort t:$t tx:$tx qra:$qra} if $dbgrbn && isdbg('rbn');
281 ++$self->{norawhour};
287 # fix up times for things like 'NXDXF B' etc
288 if ($tx && is_ztime($t)) {
297 if ($sort && $sort eq 'NCDXF') {
301 if ($sort && $sort eq 'BEACON') {
304 if ($mode =~ /^PSK/) {
307 if ($mode eq 'RTTY') {
311 # The main de-duping key is [call, $frequency], but we probe a bit around that frequency to find a
312 # range of concurrent frequencies that might be in play.
314 # The key to this is deducing the true callsign by "majority voting" (the greater the number of spotters
315 # the more effective this is) together with some lexical analsys probably in conjuction with DXSpider
316 # data sources (for singleton spots) to then generate a "centre" from and to zone (whatever that will mean if it isn't the usual one)
317 # and some heuristical "Kwalitee" rating given distance from the zone centres of spotter, recipient user
318 # and spotted. A map can be generated once per user and spotter as they are essentially mostly static.
319 # The spotted will only get a coarse position unless other info is available. Programs that parse
320 # DX bulletins and the online data online databases could be be used and then cached.
322 # Obviously users have to opt in to receiving RBN spots and other users will simply be passed over and
325 # Clearly this will only work in the 'mojo' branch of DXSpider where it is possible to pass off external
326 # data requests to ephemeral or semi resident forked processes that do any grunt work and the main
327 # process to just the standard "message passing" which has been shown to be able to sustain over 5000
328 # per second (limited by the test program's output and network speed, rather than DXSpider's handling).
331 my $nqrg = nearest(1, $qrg * 10); # normalised to nearest Khz
332 my $sp = "$call|$nqrg"; # hopefully the skimmers will be calibrated at least this well!
335 my $cand = $spots->{$sp};
338 for ($i = $nqrg; !$cand && $i <= $nqrg+$search; $i += 1) {
340 $cand = $spots->{$new}, last if exists $spots->{$new};
343 my $diff = $i - $nqrg;
344 dbg(qq{RBN: QRG Diff using $new (+$diff) for $sp for qrg $qrg}) if (isdbg('rbnqrg') || ($dbgrbn && isdbg('rbn')));
350 for ($i = $nqrg; !$cand && $i >= $nqrg-$search; $i -= 1) {
352 $cand = $spots->{$new}, last if exists $spots->{$new};
355 my $diff = $nqrg - $i;
356 dbg(qq{RBN: QRG Diff using $new (-$diff) for $sp for qrg $qrg}) if (isdbg('rbnqrg') || ($dbgrbn && isdbg('rbn')));
361 # if we have one and there is only one slot and that slot's time isn't expired for respot then return
363 if ($cand && ref $cand) {
364 if (@$cand <= CData) {
365 if ($self->{minspottime} > 0 && $now - $cand->[CTime] < $self->{minspottime}) {
366 dbg("RBN: key: '$sp' call: $call qrg: $qrg DUPE \@ ". atime(int $cand->[CTime])) if $dbgrbn && isdbg('rbn');
370 dbg("RBN: key: '$sp' RESPOTTING call: $call qrg: $qrg last seen \@ ". atime(int $cand->[CTime])) if $dbgrbn && isdbg('rbn');
371 $cand->[CTime] = $now;
375 # otherwise we have a spot being built up at the moment
377 dbg("RBN: key '$sp' = '$cand' not ref");
380 # new spot / frequency
381 $spots->{$sp} = $cand = [$now, 0];
382 dbg("RBN: key: '$sp' call: $call qrg: $qrg NEW" . ($respot ? ' RESPOT' : '')) if $dbgrbn && isdbg('rbn');
385 # add me to the display queue unless we are waiting for initial in rush to finish
386 return unless $noinrush || $self->{inrushpreventor} < $main::systime;
388 # build up a new record and store it in the buildup
389 # deal with the unix time
390 my ($hh,$mm) = $t =~ /(\d\d)(\d\d)Z$/;
391 my $utz = $hh*3600 + $mm*60 + $main::systime_daystart; # possible issue with late spot from previous day
392 $utz -= 86400 if $utz > $now+3600; # too far ahead, drag it back one day
394 # create record and add into the buildup
395 my $r = [$origin, nearest(.1, $qrg), $call, $mode, $s, $t, $utz, $respot, $u];
396 my @s = Spot::prepare($r->[RQrg], $r->[RCall], $r->[RUtz], '', $r->[ROrigin]);
398 dbg("RBN: ERROR invalid prefix/callsign $call from $origin-# on $qrg, dumped");
402 if ($self->{inrbnfilter}) {
403 my ($want, undef) = $self->{inrbnfilter}->it($s);
406 $r->[RSpotData] = \@s;
408 ++$self->{queue}->{$sp};# unless @$cand>= CData; # queue the KEY (not the record)
410 dbg("RBN: key: '$sp' ADD RECORD call: $call qrg: $qrg origin: $origin respot: $respot") if $dbgrbn && isdbg('rbn');
415 dbg "RBN:DATA,$line" if $dbgrbn && isdbg('rbn');
419 # we should get the spot record minus the time, so just an array of record (arrays)
428 ++$self->{norbnhour};
430 # $r = [$origin, $qrg, $call, $mode, $s, $utz, $respot];
432 my $mode = $cand->[CData]->[RMode]; # as all the modes will be the same;
434 my @dxchan = DXChannel::get_all();
436 foreach my $dxchan (@dxchan) {
437 next unless $dxchan->is_user;
438 my $user = $dxchan->{user};
439 next unless $user && $user->wantrbn;
441 # does this user want this sort of spot at all?
443 ++$want if $user->wantbeacon && $mode =~ /^BCN|DXF/;
444 ++$want if $user->wantcw && $mode =~ /^CW/;
445 ++$want if $user->wantrtty && $mode =~ /^RTT/;
446 ++$want if $user->wantpsk && $mode =~ /^PSK|FSK|MSK/;
447 ++$want if $user->wantft && $mode =~ /^FT/;
449 dbg(sprintf("RBN: spot selection for $dxchan->{call} mode: '$mode' want: $want flags rbn:%d ft:%d bcn:%d cw:%d psk:%d rtty:%d",
456 )) if isdbg('rbnll');
458 # send one spot to one user out of the ones that we have
459 $self->dx_spot($dxchan, $quality, $cand) if $want;
469 my $call = $dxchan->{call};
470 my $seeme = $dxchan->user->rbnseeme();
471 my $strength = 100; # because it could if we talk about FTx
477 ++$self->{nousers}->{$call};
478 ++$self->{nousers10}->{$call};
479 ++$self->{nousershour}->{$call};
482 my $rf = $dxchan->{rbnfilter} || $dxchan->{spotsfilter};
485 foreach my $r (@$cand) {
486 # $r = [$origin, $qrg, $call, $mode, $s, $t, $utz, $respot, $qra];
487 # Spot::prepare($qrg, $call, $utz, $comment, $origin);
488 next unless $r && ref $r;
490 $qra = $r->[RQra] if !$qra && $r->[RQra] && is_qra($r->[RQra]);
492 $comment = sprintf "%-3s %2ddB $quality", $r->[RMode], $r->[RStrength];
493 my $s = $r->[RSpotData]; # the prepared spot
494 $s->[SComment] = $comment; # apply new generated comment
496 ++$zone{$s->[SZone]}; # save the spotter's zone
498 # if the 'see me' flag is set, then show all the spots without further adornment (see set/rbnseeme for more info)
500 send_final($dxchan, $s);
504 # save the lowest strength one
505 if ($r->[RStrength] < $strength) {
506 $strength = $r->[RStrength];
508 dbg("RBN: STRENGTH spot: $s->[SCall] qrg: $s->[SQrg] origin: $s->[SOrigin] dB: $r->[RStrength] < $strength") if isdbg 'rbnll';
512 my ($want, undef) = $rf->it($s);
513 dbg("RBN: FILTERING for $call spot: $s->[SCall] qrg: $s->[SQrg] origin: $s->[SOrigin] dB: $r->[RStrength] com: '$s->[SComment]' want: " . ($want ? 'YES':'NO')) if isdbg 'rbnll';
520 $saver = $filtered; # if nothing passed the filter's lips then $saver == $filtered == undef !
525 # create a zone list of spotters
526 delete $zone{$saver->[SZone]}; # remove this spotter's zone (leaving all the other zones)
527 my $z = join ',', sort {$a <=> $b} keys %zone;
529 # alter spot data accordingly
530 $saver->[SComment] .= " Z:$z" if $z;
532 send_final($dxchan, $saver);
536 ++$self->{nospothour};
539 my $user = DXUser::get_current($saver->[SCall]) || DXUser->new($saver->[SCall]);
540 unless ($user->qra && is_qra($user->qra)) {
542 dbg("RBN: update qra on $saver->[SCall] to $qra");
553 my $call = $dxchan->{call};
556 dbg("RBN: SENDING to $call spot: $saver->[SCall] qrg: $saver->[SQrg] origin: $saver->[SOrigin] $saver->[SComment]") if isdbg 'rbnll';
557 if ($dxchan->{ve7cc}) {
558 my $call = $saver->[SOrigin];
559 $saver->[SOrigin] .= '-#';
560 $buf = VE7CC::dx_spot($dxchan, @$saver);
561 $saver->[SOrigin] = $call;
563 my $call = $saver->[SOrigin];
564 $saver->[SOrigin] = substr($call, 0, 6);
565 $saver->[SOrigin] .= '-#';
566 $buf = $dxchan->format_dx_spot(@$saver);
567 $saver->[SOrigin] = $call;
569 $dxchan->local_send('N', $buf);
575 my $rbnskim = isdbg('rbnskim');
577 foreach my $dxchan (DXChannel::get_all()) {
578 next unless $dxchan->is_rbn;
580 # At this point we run the queue to see if anything can be sent onwards to the punter
581 my $now = $main::systime;
582 my $ta = [gettimeofday];
585 # now run the waiting queue which just contains KEYS ($call|$qrg)
586 foreach my $sp (keys %{$dxchan->{queue}}) {
587 my $cand = $spots->{$sp};
590 unless ($cand && $cand->[CTime]) {
591 dbg "RBN Cand $sp " . ($cand ? 'def' : 'undef') . " [CTime] " . ($cand->[CTime] ? 'def' : 'undef') . " dwell $dwelltime";
592 delete $spots->{$sp};
593 delete $dxchan->{queue}->{$sp}; # remove
597 my $ctime = $cand->[CTime];
598 my $quality = @$cand - CData;
599 my $dwellsecs = $now - $ctime;
600 if ($quality >= $maxqual || $dwellsecs >= $dwelltime || $dwellsecs >= $limbotime) {
601 # we have a candidate, create qualitee value(s);
602 unless (@$cand > CData) {
603 dbg "RBN: QUEUE key '$sp' MISSING RECORDS, IGNORED" . dd($cand) if isdbg 'rbnqueue';
604 delete $spots->{$sp}; # don't remember it either - this means that a spot HAS to come in with sufficient spotters to be processed.
605 delete $dxchan->{queue}->{$sp};
608 dbg "RBN: QUEUE PROCESSING key: '$sp' $now >= $cand->[CTime]" if isdbg 'rbnqueue';
609 my $spotters = $quality;
611 # dump it and remove it from the queue if it is of unadequate quality, but only if it is no longer in Limbo and can be reasonably passed on to its demise
612 my $r = $cand->[CData];
613 if ($dwellsecs > $limbotime && $quality < $minqual) {
614 if ( $rbnskim && isdbg('rbnskim')) {
617 my $lastin = difft($ctime, $now, 2);
618 my $s = "RBN:SKIM time in Limbo exceeded DUMPED (lastin: $lastin Q:$quality < Q:$minqual) key: '$sp' = $r->[RCall] on $r->[RQrg] by $r->[ROrigin] \@ $r->[RTime] route: $dxchan->{call}";
622 delete $spots->{$sp}; # don't remember it either - this means that a spot HAS to come in with sufficient spotters to be processed.
623 delete $dxchan->{queue}->{$sp};
627 # we have a possible removal from Limbo, check for more than one skimmer and reset the quality if required
628 # DOES THIS TEST CAUSE RACES?
629 if (!$r->[Respot] && $quality >= $minqual && $dwellsecs > $dwelltime+1) {
631 # because we don't need to check for repeats by the same skimmer in the normal case, we do here
634 foreach my $wr (@$cand) {
636 push @origin, $wr->[ROrigin];
637 if (exists $seen{$wr->[ROrigin]}) {
640 $seen{$wr->[ROrigin]} = $wr;
642 # reset the quality to ignore dupes
644 $quality = keys %seen;
645 if ($quality >= $minqual) {
646 if ( $rbnskim && isdbg('rbnskim')) {
647 my $lastin = difft($ctime, $now, 2);
648 my $sk = join ' ', keys %seen;
649 my $or = join ' ', @origin;
650 my $s = "RBN:SKIM promoted from Limbo - key: '$sp' (lastin: $lastin Q now: $quality was $oq skimmers now: $sk";
651 $s .= " was $or" if $or ne $sk;
655 } elsif ($oq != $quality) {
656 if ( $rbnskim && isdbg('rbnskim')) {
657 my $lastin = difft($ctime, $now, 2);
658 my $sk = join ' ', keys %seen;
659 my $or = join ' ', @origin;
660 my $s = "RBN:SKIM quality reset key: '$sp' (lastin: $lastin Q now: $quality was $oq skimmers now: $sk was: $or)";
664 my @ncand = (@$cand[CTime, CQual], values %seen);
665 $spots->{$sp} = \@ncand;
669 # we now kick this spot into Limbo
670 if ($quality < $minqual) {
674 $quality = 9 if $quality > 9;
675 $cand->[CQual] = $quality if $quality > $cand->[CQual];
677 # this scores each candidate according to its skimmer's QRG score (i.e. how often it agrees with its peers)
678 # what happens is hash of all QRGs in candidates are incremented by that skimmer's reputation for "accuracy"
679 # or, more exactly, past agreement with the consensus. This score can be from -5 -> +5.
685 foreach $r (@$cand) {
687 if (exists $seen{$r->[ROrigin]}) {
691 $seen{$r->[ROrigin]} = 1;
692 $band ||= int $r->[RQrg] / 1000;
693 $sk = "SKIM|$r->[ROrigin]|$band"; # thus only once per set of candidates
694 $skimmer = $spots->{$sk};
696 $skimmer = $spots->{$sk} = [1, 0, 0, $now, []]; # this first time, this new skimmer gets the benefit of the doubt on frequency.
697 dbg("RBN:SKIM new slot $sk " . $json->encode($skimmer)) if $rbnskim && isdbg('rbnskim');
699 $qrg{$r->[RQrg]} += ($skimmer->[DScore] || 1);
702 # determine the most likely qrg and then set it - NOTE (-)ve votes, generated by the skimmer scoring system above, are ignored
707 while (my ($k, $votes) = each %qrg) {
715 # Ignore possible spots with 0 QRG score - as determined by the skimmer scoring system above - as they are likely to be wrong
717 if ( $rbnskim && isdbg('rbnskim')) {
719 while (my ($k, $v) = (each %qrg)) {
724 foreach $r (@$cand) {
725 next unless $r && ref $r;
726 dbg "RBN:SKIM cand $i QRG likely wrong from '$sp' = $r->[RCall] on $r->[RQrg] by $r->[ROrigin] \@ $r->[RTime] (qrgs: $keys c: $c) route: $dxchan->{call}, ignored";
730 delete $spots->{$sp}; # get rid
731 delete $dxchan->{queue}->{$sp};
735 # detemine and spit out the deviants. Then adjust the scores according to whether it is a deviant or good
736 # NOTE: deviant nodes can become good (or less bad), and good nodes bad (or less good) on each spot that
737 # they generate. This is based solely on each skimmer's agreement (or not) with the "consensus" score generated
738 # above ($qrg). The resultant score + good + bad is stored per band and will be used the next time a spot
739 # appears on this band from each skimmer.
740 foreach $r (@$cand) {
741 next unless $r && ref $r;
742 my $diff = $c > 1 ? nearest(.1, $r->[RQrg] - $qrg) : 0;
743 $sk = "SKIM|$r->[ROrigin]|$band";
744 $skimmer = $spots->{$sk};
746 ++$skimmer->[DBad] if $skimmer->[DBad] < $maxdeviants;
747 --$skimmer->[DGood] if $skimmer->[DGood] > 0;
748 push @deviant, sprintf("$r->[ROrigin]:%+.1f", $diff);
749 push @{$skimmer->[DEviants]}, $diff;
750 shift @{$skimmer->[DEviants]} while @{$skimmer->[DEviants]} > $maxdeviants;
752 ++$skimmer->[DGood] if $skimmer->[DGood] < $maxdeviants;
753 --$skimmer->[DBad] if $skimmer->[DBad] > 0;
754 shift @{$skimmer->[DEviants]};
756 $skimmer->[DScore] = $skimmer->[DGood] - $skimmer->[DBad];
757 if ($rbnskim && isdbg('rbnskim')) {
758 my $lastin = difft($skimmer->[DLastin], $now, 2);
759 my $difflist = join(', ', @{$skimmer->[DEviants]});
760 $difflist = " band qrg diffs: $difflist" if $difflist;
761 dbg("RBN:SKIM key $sp slot $sk $r->[RQrg] - $qrg = $diff Skimmer score: $skimmer->[DGood] - $skimmer->[DBad] = $skimmer->[DScore] lastseen:$lastin ago$difflist");
763 $skimmer->[DLastin] = $now;
764 $r->[RSpotData]->[SQrg] = $qrg if $qrg && $c > 1; # set all the QRGs to the agreed value
767 $qrg = (sprintf "%.1f", $qrg)+0;
770 my $squality = "Q:$cand->[CQual]";
771 $squality .= '*' if $c > 1;
772 $squality .= '+' if $r->[Respot];
774 if (isdbg('progress')) {
775 my $rt = difft($ctime, $now, 2);
776 my $s = "RBN: SPOT key: '$sp' = $r->[RCall] on $r->[RQrg] by $r->[ROrigin] \@ $r->[RTime] $squality route: $dxchan->{call} dwell:$rt";
778 $s .= " QRGScore: $mv Deviants: $td/$spotters";
779 $s .= ' (' . join(', ', sort @deviant) . ')' if $td;
783 # finally send it out to any waiting public
784 send_dx_spot($dxchan, $squality, $cand);
786 # clear out the data and make this now just "spotted", but no further action required until respot time
787 dbg "RBN: QUEUE key '$sp' cleared" if isdbg 'rbn';
789 delete $dxchan->{queue}->{$sp};
791 # calculate new sp (which will be 70% likely the same as the old one)
792 # we do this to cope with the fact that the first spotter may well be "wrongly calibrated" giving a qrg that disagrees with the majority.
793 # and we want to store the key that corresponds to majority opinion.
794 my $nqrg = nearest(1, $qrg * 10); # normalised to nearest Khz
795 my $nsp = "$r->[RCall]|$nqrg";
797 dbg("RBN:SKIM CHANGE KEY sp '$sp' -> '$nsp' for storage") if $rbnskim && isdbg('rbnskim');
798 delete $spots->{$sp};
799 $spots->{$nsp} = [$now, $cand->[CQual]];
801 $spots->{$sp} = [$now, $cand->[CQual]];
805 dbg sprintf("RBN: QUEUE key: '$sp' SEND time not yet reached %.1f secs left", $cand->[CTime] + $dwelltime - $now) if isdbg 'rbnqueue';
808 if (isdbg('rbntimer')) {
809 my $diff = _diffus($ta);
810 dbg "RBN: TIMER process queue for call: $dxchan->{call} $items spots $diff uS";
817 foreach my $dxchan (DXChannel::get_all()) {
818 next unless $dxchan->is_rbn;
819 dbg "RBN:STATS minute $dxchan->{call} raw: $dxchan->{noraw} retrieved spots: $dxchan->{norbn} delivered: $dxchan->{nospot} after filtering to users: " . scalar keys %{$dxchan->{nousers}} if isdbg('rbnstats');
820 if ($dxchan->{noraw} == 0 && $dxchan->{lasttime} > 60) {
821 LogDbg('RBN', "RBN: no input from $dxchan->{call}, disconnecting");
824 $dxchan->{noraw} = $dxchan->{norbn} = $dxchan->{nospot} = 0; $dxchan->{nousers} = {};
825 $runtime{$dxchan->{call}} += 60;
828 # save the spot cache
829 write_cache() unless $main::systime + $startup_delay < $main::systime;;
836 while (my ($k,$cand) = each %{$spots}) {
837 next if $k eq 'VERSION';
838 next if $k =~ /^O\|/;
839 next if $k =~ /^SKIM\|/;
841 if ($main::systime - $cand->[CTime] > $minspottime*2) {
849 dbg "RBN:STATS spot cache remain: $count removed: $removed"; # if isdbg('rbn');
850 foreach my $dxchan (DXChannel::get_all()) {
851 next unless $dxchan->is_rbn;
852 my $nq = keys %{$dxchan->{queue}};
853 my $pc = $dxchan->{noraw10} ? sprintf("%.1f%%",$dxchan->{norbn10}*100/$dxchan->{noraw10}) : '0.0%';
854 dbg "RBN:STATS 10-minute $dxchan->{call} queue: $nq raw: $dxchan->{noraw10} retrieved spots: $dxchan->{norbn10} ($pc) delivered: $dxchan->{nospot10} after filtering to users: " . scalar keys %{$dxchan->{nousers10}};
855 $dxchan->{noraw10} = $dxchan->{norbn10} = $dxchan->{nospot10} = 0; $dxchan->{nousers10} = {};
861 foreach my $dxchan (DXChannel::get_all()) {
862 next unless $dxchan->is_rbn;
863 my $nq = keys %{$dxchan->{queue}};
864 my $pc = $dxchan->{norawhour} ? sprintf("%.1f%%",$dxchan->{norbnhour}*100/$dxchan->{norawhour}) : '0.0%';
865 dbg "RBN:STATS hour $dxchan->{call} queue: $nq raw: $dxchan->{norawhour} retrieved spots: $dxchan->{norbnhour} ($pc) delivered: $dxchan->{nospothour} after filtering to users: " . scalar keys %{$dxchan->{nousershour}};
866 $dxchan->{norawhour} = $dxchan->{norbnhour} = $dxchan->{nospothour} = 0; $dxchan->{nousershour} = {};
877 my $ta = [ gettimeofday ];
878 $json->indent(1)->canonical(1) if isdbg 'rbncache';
879 my $s = eval {$json->encode($spots)};
881 my $fh = IO::File->new(">$cachefn") or confess("writing $cachefn $!");
885 dbg("RBN:Write_cache error '$@'");
888 $json->indent(0)->canonical(0);
889 my $diff = _diffms($ta);
890 my $size = sprintf('%.3fKB', (length($s) / 1000));
891 dbg("RBN:WRITE_CACHE size: $size time to write: $diff mS");
897 my $mt = (stat($cachefn))[9];
898 my $t = $main::systime - $mt || 1;
899 my $p = difft($mt, 2);
900 if ($t < $cache_valid) {
901 dbg("RBN:check_cache '$cachefn' spot cache exists, created $p ago and not too old");
902 my $fh = IO::File->new($cachefn);
907 dbg("RBN:check_cache cache read size " . length $s);
910 dbg("RBN:check_cache file read error $!");
914 eval {$spots = $json->decode($s)};
915 if ($spots && ref $spots) {
916 if (exists $spots->{VERSION} && $spots->{VERSION} == $DATA_VERSION) {
917 # now clean out anything that has spot build ups in progress
918 while (my ($k, $cand) = each %$spots) {
919 next if $k eq 'VERSION';
920 next if $k =~ /^O\|/;
921 next if $k =~ /^SKIM\|/;
922 if (@$cand > CData) {
923 $spots->{$k} = [$cand->[CTime], $cand->[CQual]];
926 dbg("RBN:check_cache spot cache restored");
930 dbg("RBN::checkcache error decoding $@");
933 my $d = difft($main::systime-$cache_valid);
934 dbg("RBN::checkcache '$cachefn' created $p ago is too old (> $d), ignored");
937 dbg("RBN:check_cache '$cachefn' spot cache not present");