3 # The geomagnetic information and calculation module
6 # Copyright (c) 1998 - Dirk Koopman G1TLH
22 use vars qw($date $sfi $k $a $r $forecast @allowed @denied $fp $node $from
24 $duplth $dupage $filterdef);
26 $fp = 0; # the DXLog fcb
27 $date = 0; # the unix time of the WWV (notional)
28 $sfi = 0; # the current SFI value
29 $k = 0; # the current K value
30 $a = 0; # the current A value
31 $r = 0; # the current R value
32 $forecast = ""; # the current geomagnetic forecast
33 $node = ""; # originating node
34 $from = ""; # who this came from
35 @allowed = (); # if present only these callsigns are regarded as valid WWV updators
36 @denied = (); # if present ignore any wwv from these callsigns
37 $duplth = 20; # the length of text to use in the deduping
38 $dupage = 12*3600; # the length of time to hold spot dups
40 $dirprefix = "$main::data/wwv";
41 $param = "$dirprefix/param";
44 # tag, sort, field, priv, special parser
51 ['origin_dxcc', 'c', 13],
52 ['origin_itu', 'c', 14],
53 ['origin_itu', 'c', 15],
58 $fp = DXLog::new('wwv', 'dat', 'm');
59 do "$param" if -e "$param";
63 # write the current data away
66 my $fh = new IO::File;
67 open $fh, "> $param" or confess "can't open $param $!";
68 print $fh "# Geomagnetic data parameter file last mod:", scalar gmtime, "\n";
69 print $fh "\$date = $date;\n";
70 print $fh "\$sfi = $sfi;\n";
71 print $fh "\$a = $a;\n";
72 print $fh "\$k = $k;\n";
73 print $fh "\$r = $r;\n";
74 print $fh "\$from = '$from';\n";
75 print $fh "\$node = '$node';\n";
76 print $fh "\@denied = qw(", join(' ', @denied), ");\n" if @denied > 0;
77 print $fh "\@allowed = qw(", join(' ', @allowed), ");\n" if @allowed > 0;
81 $fp->writeunix($date, "$from^$date^$sfi^$a^$k^$forecast^$node^$r");
84 # update WWV info in one go (usually from a PC23)
87 my ($mydate, $mytime, $mysfi, $mya, $myk, $myforecast, $myfrom, $mynode, $myr) = @_;
88 if ((@allowed && grep {$_ eq $from} @allowed) ||
89 (@denied && !grep {$_ eq $from} @denied) ||
90 (@allowed == 0 && @denied == 0)) {
92 # my $trydate = cltounix($mydate, sprintf("%02d18Z", $mytime));
93 if ($mydate >= $date) {
97 $r = 0 unless abs ($mysfi - $sfi) > 3;
102 $forecast = $myforecast;
112 # add or substract an allowed callsign
117 push @allowed, map {uc $_} @_;
121 @allowed = map {$_ ne uc $c} @allowed;
127 # add or substract a denied callsign
132 push @denied, map {uc $_} @_;
136 @denied = map {$_ ne uc $c} @denied;
142 # accessor routines (when I work how symbolic refs work I might use one of those!)
145 @_ ? $sfi = shift : $sfi ;
150 @_ ? $k = shift : $k ;
155 @_ ? $r = shift : $r ;
160 @_ ? $a = shift : $a ;
165 @_ ? $forecast = shift : $forecast ;
170 # print some items from the log backwards in time
172 # This command outputs a list of n lines starting from line $from to $to
178 my @date = $fp->unixtoj(shift);
189 for (\$c = \$#in; \$c >= 0; \$c--) {
193 next if \$count < \$from;
195 last if \$count >= \$to; # stop after n
200 $fp->close; # close any open files
202 my $fh = $fp->open(@date);
203 for ($count = 0; $count < $to; ) {
208 push @in, [ split '\^' ] if length > 2;
210 eval $eval; # do the search on this file
211 return ("Geomag search error", $@) if $@;
212 last if $count >= $to; # stop after n
214 $fh = $fp->openprev(); # get the next file
222 # the standard log printing interpreting routine.
224 # every line that is printed should call this routine to be actually visualised
226 # Don't really know whether this is the correct place to put this stuff, but where
229 # I get a reference to an array of items
235 my $d = cldate($ref[1]);
236 my ($t) = (gmtime($ref[1]))[2];
238 return sprintf("$d %02d %5d %3d %3d %-37s <%s>", $t, $ref[2], $ref[3], $ref[4], $ref[5], $ref[0]);
242 # read in this month's data
246 my @date = $fp->unixtoj(shift);
247 my $fh = $fp->open(@date);
254 push @in, [ split '\^' ] if length > 2;
260 # enter the spot for dup checking and return true if it is already a dup
263 my ($d, $sfi, $k, $a, $text) = @_;
266 return 2 if $d < $main::systime - $dupage;
268 my $dupkey = "W$d|$sfi|$k|$a";
269 return DXDupe::check($dupkey, $main::systime+$dupage);
274 return DXDupe::listdups('W', $dupage, @_);