--- /dev/null
+#!/usr/bin/perl
+#
+# The WCY analog of the WWV geomagnetic information and calculation module
+#
+# Copyright (c) 2000 - Dirk Koopman G1TLH
+#
+# $Id$
+#
+
+package WCY;
+
+use DXVars;
+use DXUtil;
+use DXLog;
+use Julian;
+use IO::File;
+use DXDebug;
+use Data::Dumper;
+
+use strict;
+use vars qw($date $sfi $k $expk $a $r $sa $gmf $au @allowed @denied $fp $node $from
+ $dirprefix $param
+ %dup $duplth $dupage);
+
+$fp = 0; # the DXLog fcb
+$date = 0; # the unix time of the WWV (notional)
+$sfi = 0; # the current SFI value
+$k = 0; # the current K value
+$a = 0; # the current A value
+$r = 0; # the current R value
+$sa = ""; # solar activity
+$gmf = ""; # Geomag activity
+$au = 'no'; # aurora warning
+$node = ""; # originating node
+$from = ""; # who this came from
+@allowed = (); # if present only these callsigns are regarded as valid WWV updators
+@denied = (); # if present ignore any wwv from these callsigns
+%dup = (); # the spot duplicates hash
+$duplth = 20; # the length of text to use in the deduping
+$dupage = 12*3600; # the length of time to hold spot dups
+
+$dirprefix = "$main::data/wcy";
+$param = "$dirprefix/param";
+
+sub init
+{
+ $fp = DXLog::new('wcy', 'dat', 'm');
+ do "$param" if -e "$param";
+ confess $@ if $@;
+}
+
+# write the current data away
+sub store
+{
+ my $fh = new IO::File;
+ open $fh, "> $param" or confess "can't open $param $!";
+ print $fh "# WCY data parameter file last mod:", scalar gmtime, "\n";
+ my $dd = new Data::Dumper([ $date, $sfi, $a, $k, $expk, $r, $sa, $gmf, $au, $from, $node, \@denied, \@allowed ], [qw(date sfi a k expk r sa gmf au from node *denied *allowed)]);
+ $dd->Indent(1);
+ $dd->Terse(0);
+ $dd->Quotekeys(0);
+ $fh->print($dd->Dumpxs);
+ $fh->close;
+
+ # log it
+ $fp->writeunix($date, "$date^$sfi^$a^$k^$expk^$r^$sa^$gmf^$au^$from^$node");
+}
+
+# update WWV info in one go (usually from a PC23)
+sub update
+{
+ my ($mydate, $mytime, $mysfi, $mya, $myk, $myexpk, $myr, $mysa, $mygmf, $myau, $myfrom, $mynode) = @_;
+ if ((@allowed && grep {$_ eq $from} @allowed) ||
+ (@denied && !grep {$_ eq $from} @denied) ||
+ (@allowed == 0 && @denied == 0)) {
+
+ # my $trydate = cltounix($mydate, sprintf("%02d18Z", $mytime));
+ if ($mydate >= $date) {
+ if ($myr) {
+ $r = 0 + $myr;
+ } else {
+ $r = 0 unless abs ($mysfi - $sfi) > 3;
+ }
+ $sfi = $mysfi;
+ $a = $mya;
+ $k = $myk;
+ $expk = $myexpk;
+ $r = $myr;
+ $sa = $mysa;
+ $gmf = $mygmf;
+ $au = $myau;
+ $date = $mydate;
+ $from = $myfrom;
+ $node = $mynode;
+
+ store();
+ }
+ }
+}
+
+# add or substract an allowed callsign
+sub allowed
+{
+ my $flag = shift;
+ if ($flag eq '+') {
+ push @allowed, map {uc $_} @_;
+ } else {
+ my $c;
+ foreach $c (@_) {
+ @allowed = map {$_ ne uc $c} @allowed;
+ }
+ }
+ store();
+}
+
+# add or substract a denied callsign
+sub denied
+{
+ my $flag = shift;
+ if ($flag eq '+') {
+ push @denied, map {uc $_} @_;
+ } else {
+ my $c;
+ foreach $c (@_) {
+ @denied = map {$_ ne uc $c} @denied;
+ }
+ }
+ store();
+}
+
+#
+# print some items from the log backwards in time
+#
+# This command outputs a list of n lines starting from line $from to $to
+#
+sub search
+{
+ my $from = shift;
+ my $to = shift;
+ my @date = $fp->unixtoj(shift);
+ my $pattern = shift;
+ my $search;
+ my @out;
+ my $eval;
+ my $count;
+
+ $search = 1;
+ $eval = qq(
+ my \$c;
+ my \$ref;
+ for (\$c = \$#in; \$c >= 0; \$c--) {
+ \$ref = \$in[\$c];
+ if ($search) {
+ \$count++;
+ next if \$count < \$from;
+ push \@out, \$ref;
+ last if \$count >= \$to; # stop after n
+ }
+ }
+ );
+
+ $fp->close; # close any open files
+
+ my $fh = $fp->open(@date);
+ for ($count = 0; $count < $to; ) {
+ my @in = ();
+ if ($fh) {
+ while (<$fh>) {
+ chomp;
+ push @in, [ split '\^' ] if length > 2;
+ }
+ eval $eval; # do the search on this file
+ return ("Geomag search error", $@) if $@;
+ last if $count >= $to; # stop after n
+ }
+ $fh = $fp->openprev(); # get the next file
+ last if !$fh;
+ }
+
+ return @out;
+}
+
+#
+# the standard log printing interpreting routine.
+#
+# every line that is printed should call this routine to be actually visualised
+#
+# Don't really know whether this is the correct place to put this stuff, but where
+# else is correct?
+#
+# I get a reference to an array of items
+#
+sub print_item
+{
+ my $r = shift;
+ my $d = cldate($r->[0]);
+ my $t = (gmtime($r->[0]))[2];
+
+ return sprintf("$d %02d %5d %3d %3d %3d %3d %-5s %-5s %-3s <%s>",
+ $t, @$r[1..9]);
+}
+
+#
+# read in this month's data
+#
+sub readfile
+{
+ my @date = $fp->unixtoj(shift);
+ my $fh = $fp->open(@date);
+ my @spots = ();
+ my @in;
+
+ if ($fh) {
+ while (<$fh>) {
+ chomp;
+ push @in, [ split '\^' ] if length > 2;
+ }
+ }
+ return @in;
+}
+
+# enter the spot for dup checking and return true if it is already a dup
+sub dup
+{
+ my ($d, $sfi, $a, $k, $r) = @_;
+
+ # dump if too old
+ return 2 if $d < $main::systime - $dupage;
+
+ $d /= 60; # to the nearest minute
+# chomp $text;
+# $text = substr($text, 0, $duplth) if length $text > $duplth;
+ my $dupkey = "$d|$sfi|$k|$a|$r";
+ return 1 if exists $dup{$dupkey};
+ $dup{$dupkey} = $d * 60; # in seconds (to the nearest minute)
+ return 0;
+}
+
+# called every hour and cleans out the dup cache
+sub process
+{
+ my $cutoff = $main::systime - $dupage;
+ while (my ($key, $val) = each %dup) {
+ delete $dup{$key} if $val < $cutoff;
+ }
+}
+
+sub listdups
+{
+ my @out;
+ for (sort { $dup{$a} <=> $dup{$b} } keys %dup) {
+ my $val = $dup{$_};
+ push @out, "$_ = $val (" . cldatetime($val) . ")";
+ }
+ return @out;
+}
+1;
+__END__;
+
projects / spider.git / blobdiff