From: minima <minima>
Date: Sun, 29 Sep 2002 21:23:56 +0000 (+0000)
Subject: stop the Timer::handler searching its chain more than once a second
X-Git-Tag: PRE-1-52~177
X-Git-Url: http://dxcluster.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=3f58f5ebe86a749d9e1ab37f25b3e7c7255a1906;p=spider.git

stop the Timer::handler searching its chain more than once a second
add flexibility to the mrtg stuff
---

diff --git a/Changes b/Changes
index bb4f33df..e9dd7d2f 100644
--- a/Changes
+++ b/Changes
@@ -1,5 +1,9 @@
 29Sep02=======================================================================
 1. Added LRU caching to DXUsers and Prefix.
+2. make Timer::handler only search its chain once a second seeing as that
+is the minimum granularity available.
+3. add some separation between cfg file making, data generation and mrtg 
+running. See /spider/cmd/mrtg.pl for some instructions...
 28Sep02=======================================================================
 1. Put some transparent caching into Prefix.pm to see if this has a 
 performance impact.
diff --git a/cmd/mrtg.pl b/cmd/mrtg.pl
index c88d5c7c..6e279985 100644
--- a/cmd/mrtg.pl
+++ b/cmd/mrtg.pl
@@ -4,7 +4,26 @@
 #
 # Your mrtg binary must live in one of the standard places
 #
-# you will need perl 5.6 (probably) to be able to run this command
+# The arguments (keywords) to the mrtg command are these
+#
+# a) content          (you always get the node users and nodes)
+#    totalspots       - all spots
+#    hfvhf            - all spots split into HF and VHF
+#    wwv              - two graphs of WWV, one SFI and R other A and K
+#    wcy              - WCY A and K 
+#    all              - all of the above 
+#    
+# b) actions          
+#    test             - do everything except check for and run mrtg
+#    nomrtg           - ditto (better name)
+#    dataonly         - only generate the data files for mrtg
+#    cfgonly          - only generate the mrtg.cfg file (like cfgmaker)
+#    runmrtg          - run mrtg, this is probably used with dataonly
+#                     - together with a home rolled mrtg.cfg 
+#
+# Copyright (c) 2002 Dirk Koopman G1TLH
+#
+# $Id$
 #
 
 my ($self, $line) = @_;
@@ -12,8 +31,9 @@ my ($self, $line) = @_;
 # create the arg list
 my %want;
 for (split /\s+/, $line) { $want{lc $_} = 1};
-			 
-return (1, "MRTG not installed") unless $want{test} || -e '/usr/bin/mrtg' || -e '/usr/local/bin/mrtg';
+$want{nomrtg} = 1 if $want{cfgonly} || $want{test};
+ 			 
+return (1, "MRTG not installed") unless $want{nomrtg} || -e '/usr/bin/mrtg' || -e '/usr/local/bin/mrtg';
 
 my $mc = new Mrtg or return (1, "cannot initialise Mrtg $!");
 			 
@@ -21,49 +41,56 @@ my $mc = new Mrtg or return (1, "cannot initialise Mrtg $!");
 my $users = DXChannel::get_all_users();
 my $nodes = DXChannel::get_all_nodes();
 
-$mc->cfgprint('users', $users, $nodes, [qw(gauge)], 500, 
+$mc->cfgprint('users', [qw(gauge)], 500, 
 		 "Users and Nodes on $main::mycall",
-		 'Users / Nodes', 'Users', 'Nodes');
+		 'Users / Nodes', 'Users', 'Nodes') unless $want{dataonly};
+$mc->data('users', $users, $nodes, 'Users / Nodes') unless $want{cfgonly};
 
 # do the  total users and nodes
 if ($want{totalusers} || $want{all}) {
 	$nodes = Route::Node::count();
 	$users = Route::User::count();
-	$mc->cfgprint('totalusers', $users, $nodes,  [qw(gauge)], 10000, 
+	$mc->cfgprint('totalusers', [qw(gauge)], 10000, 
 			'Total Users and Nodes in the Visible Cluster Network',
-			 'Users / Nodes', 'Users', 'Nodes');
+			 'Users / Nodes', 'Users', 'Nodes') unless $want{dataonly};
+	$mc->data('totalusers', $users, $nodes, 'Total Users and Nodes in the Visible Cluster Network') unless $want{cfgonly};
 }
 
 # do the total spots
 if ($want{totalspots} || $want{all}) {
-	$mc->cfgprint('totalspots', $Spot::totalspots, $Spot::totalspots, [qw(unknaszero gauge noi)], 1000, 'Total Spots',
-			 'Spots', 'Spots', 'Spots');
+	$mc->cfgprint('totalspots',  [qw(unknaszero gauge noi)], 1000, 'Total Spots',
+			 'Spots', 'Spots', 'Spots') unless $want{dataonly};
+	$mc->data('totalspots', $Spot::totalspots, $Spot::totalspots, 'Total Spots') unless $want{cfgonly};
 	$Spot::totalspots = 0;
 }
 
 # do the HF and VHF spots
 if ($want{hfvhf} || $want{all}) {
-	$mc->cfgprint('hfspots', $Spot::hfspots, $Spot::vhfspots, [qw(unknaszero gauge)], 1000, 'HF and VHF+ Spots',
-			 'Spots', 'HF', 'VHF');
+	$mc->cfgprint('hfspots', [qw(unknaszero gauge)], 1000, 'HF and VHF+ Spots',
+			 'Spots', 'HF', 'VHF') unless $want{dataonly};
+	$mc->data('hfspots', $Spot::hfspots, $Spot::vhfspots, 'HF and VHF+ Spots') unless $want{cfgonly};
 	$Spot::hfspots = $Spot::vhfspots = 0;
 }
 
 # wwv stuff
 if ($want{wwv} || $want{all}) {
-	$mc->cfgprint('wwvsfi', ($Geomag::r || $WCY::r), ($Geomag::sfi || $WCY::sfi), [qw(gauge)], 1000, 'WWV SFI and R',
-			 'SFI / R', 'SFI', 'R');
-	$mc->cfgprint('wwvka', $Geomag::a, $Geomag::k, [qw(gauge)], 1000, 'WWV A and K',
-			 'A / K', 'A', 'K');
+	$mc->cfgprint('wwvsfi', [qw(gauge)], 1000, 'WWV SFI and R',
+			 'SFI / R', 'SFI', 'R') unless $want{dataonly};
+	$mc->data('wwvsfi', ($Geomag::r || $WCY::r), ($Geomag::sfi || $WCY::sfi), 'WWV SFI and R') unless $want{cfgonly};
+	$mc->cfgprint('wwvka', [qw(gauge)], 1000, 'WWV A and K',
+			 'A / K', 'A', 'K') unless $want{dataonly};
+	$mc->data('wwvka', $Geomag::a, $Geomag::k, 'WWV A and K') unless $want{cfgonly};
 }
 
 # WCY stuff
 if ($want{wcy} || $want{all}) {
-	$mc->cfgprint('wcyka', $WCY::a, $WCY::k, [qw(gauge)], 1000, 'WCY A and K',
-			 'A / K', 'A', 'K');
+	$mc->cfgprint('wcyka', [qw(gauge)], 1000, 'WCY A and K',
+			 'A / K', 'A', 'K') unless $want{dataonly};
+	$mc->data('wcyka', $WCY::a, $WCY::k, 'WCY A and K') unless $want{cfgonly};
 }
 
 # 
 # do the mrtg thing
 #
-my @out = $mc->run unless $want{test};
+my @out = $mc->run unless $want{nomrtg};
 return (1, @out);
diff --git a/perl/Mrtg.pm b/perl/Mrtg.pm
index 8a6e79ed..e9ded9e6 100644
--- a/perl/Mrtg.pm
+++ b/perl/Mrtg.pm
@@ -56,17 +56,24 @@ sub run
 	return `mrtg $self->{cfg}`;
 }
 
-sub cfgprint
+sub data
 {
-	my ($self, $name, $vali, $valo, $options, $max, $title, $legend, $iname, $oname) = @_;
-	my $opt = join ', ', @$options, qw(withzeroes gauge growright nopercent integer);
+	my ($self, $name, $vali, $valo, $title) = @_;
 	my $uptime = main::uptime();
 
-	if (my $m = new IO::File ">$self->{dir}/$name") {
+	if (my $m = new IO::File ">$self->{dir}/$name" ) {
 		$m->print("$vali\n$valo\n$uptime\n$title\n");
 		$m->close;
+	} else {
+		dbg("MRTG: cannot open $self->{dir}/$name $!");
 	}
-		
+}
+
+sub cfgprint
+{
+	my ($self, $name, $options, $max, $title, $legend, $iname, $oname) = @_;
+	my $opt = join ', ', @$options, qw(withzeroes gauge growright nopercent integer);
+
 	$self->{mc}->print(<<"EOF");
 
 #
diff --git a/perl/Timer.pm b/perl/Timer.pm
index 4a1e1c42..fc110315 100644
--- a/perl/Timer.pm
+++ b/perl/Timer.pm
@@ -22,6 +22,8 @@ $BRANCH = sprintf( "%d.%03d", q$Revision$ =~ /\d+\.\d+\.(\d+)\.(\d+)/  || (0,0))
 $main::build += $VERSION;
 $main::branch += $BRANCH;
 
+my $lasttime = 0;
+
 sub new
 {
     my ($pkg, $time, $proc, $recur) = @_;
@@ -45,7 +47,9 @@ sub del
 sub handler
 {
 	my $now = time;
-	
+
+	return unless $now != $lasttime;
+
 	# handle things on the timer chain
 	my $t;
 	foreach $t (@timerchain) {
@@ -54,6 +58,8 @@ sub handler
 			$t->{t} = $now + $t->{interval} if exists $t->{interval};
 		}
 	}
+
+	$lasttime = $now;
 }
 
 sub DESTROY