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# -*-Perl-*-
# instances allowed: one
# (single instance modules would be silly to use more than one of
# anyway, so we use package local storage. This is faster and places
# less artificial load on the machine than doing everything through
# the object hash)
package MGMmodule::netstat;
use vars qw($xpath @if @keys $active $field $prompt @prev @bytes $widget
$graph $lastmod $minscale);
# class init
sub module_init{
my$this=shift;
my$toplevel=$this->{"toplevel"};
my$xclass=$this->{"xclass"};
$minscale=2048;
# is the helper up and running?
if(!defined(%MGMmodule::helperST::net)){
$toplevel->optionAdd("$xclass.active",'false',21);
}
$toplevel->optionAdd("$xclass.order",20,21);
$this;
}
# instance init
sub module_instance{
my$this=shift;
my$toplevel=$this->{"toplevel"};
return undef if(defined($xpath));
$xpath=$this->{"xpath"};
undef@keys;
undef@prev;
foreach my $key (keys %MGMmodule::helperST::net){
push @keys, $key if(defined($MGMmodule::helperST::net{$key}));
}
$active=$MGMmodule::helperST::active_if;
# three possible different formats.
my@test=split ' ', $MGMmodule::helperST::net{$keys[0]};
if($#test==10){
$field=5;
$prompt=' pkts/s';
$minscale=16;
}else{
$field=($#test+1)/2;
$prompt='B/s';
}
# modify defaults
my$i=0;
foreach my $key (@keys){
$toplevel->optionAdd("$xpath.bar.".($i*2).".label", "$key Rx",21);
$toplevel->optionAdd("$xpath.bar.".($i*2).".litbackground", '#787cf8',21);
$toplevel->optionAdd("$xpath.bar.".($i*2+1).".label", "$key Tx",21);
$toplevel->optionAdd("$xpath.bar.".($i*2+1).".litbackground","#78b0f8",21);
$i++;
}
$toplevel->optionAdd("$xpath.scalewidadj", 80*$i*2,21); # narrower
$toplevel->optionAdd("$xpath.scalereturn", 120,21);
# this relies on the above defaults
my($minx,$miny)=MGM::Graph::calcxysize($this,1024*1024*512,
$prompt,$active*2);
$toplevel->optionAdd("$xpath.minx", $minx,21);
$toplevel->optionAdd("$xpath.miny", $miny,21);
$this;
}
# instance widget build
sub module_run{
my$this=shift;
$graph=MGM::Graph->new($this,num=>$active*2,
prompt=>$prompt,
minscale=>$minscale);
$lastmod=-1;
$widget=$graph->{"widget"}; # must return the widget
}
sub module_update{
my$this=shift;
# don't update unless the helper has
if($lastmod!=$MGMmodule::helperST::lastmod){
my$time=$MGMmodule::helperST::lastmod;
my@vals;
my$i=0;
my$reflag=0;
foreach my $key (@keys){
return &reconfig if(!defined($MGMmodule::helperST::net{$key}));
my@temp=split ' ', $MGMmodule::helperST::net{$key};
$bytes[$i]=$temp[0];
$bytes[$i+1]=$temp[$field];
$i+=2;
}
if(defined(@prev)){
for($i=0;$i<$active*2;$i++){
$vals[$i]=($bytes[$i]-$prev[$i])/($time-$lastmod)*100;
}
$graph->set(@vals);
return &reconfig if($active<$MGMmodule::helperST::active_if);
}
@prev=@bytes;
$lastmod=$time;
}
}
sub reconfig{
&main::reinstance() if($widget->optionGet("reconfig","") eq 'true');
}
sub destroy{
undef $xpath;
}
bless {};
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