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package HotSaNICmod::OSdep;
sub version {
($VERSION = '$Revision: 1.8 $') =~ s/.*(\d+\.\d+).*/$1/;
return "default.pm $VERSION";
}
sub sample {
my %args=@_;
$mtime=(stat("rrd"))[9];
$now=time;
if (($mtime+$args{INTERVAL}) <= $now) {
utime $now,$now,"rrd";
$processes=0;
sub wait_for_child {
my $pid = wait;
return 0 if $pid < 0;
$processes--;
if ($processes<0) {$processes=0;}
}
foreach (@{$args{HOST}}) {
my ($host,$descr,$method)=split /,/;
if ( (!defined $method) || ($method eq "") || ($method eq "default") ) { $method=$args{METHOD}; }
wait_for_child() if $processes >= $args{PARALLEL};
$processes++;
$return=fork;
# child process
if ($return == 0) {
if (HotSaNIClog::check_debuglevel("MODULE_VERBOSE")) { HotSaNIClog::info("> $host using $method"); }
my ($meth,$proto)=split /-/,$method;
if ($meth eq "ping") { ($min,$avg,$max)=sysping($host,250,250,10); }
elsif ($meth eq "echo") { ($min,$avg,$max)=HotSaNICmod::common::echoping($host,250,250,10,$proto); }
elsif ($meth eq "perl") { ($min,$avg,$max)=HotSaNICmod::common::ping($host,250,250,10,$proto); }
else { HotSaNIClog::error("Unknown ping method!"); }
if ($method ne $args{METHOD}) { HotSaNICmod::do_rrd("$host-$method","U",time,$min,$avg,$max); }
else { HotSaNICmod::do_rrd($host,"U",time,$min,$avg,$max); }
exit 0;
}
}
}
while($processes) { wait_for_child(); }
}
sub sysping {
my($HOST,$TIMEOUT,$WAIT,$COUNT)=@_;
$TIMEOUT/=1000;
$WAIT/=1000;
my $command="ping -s $HOST 56 $COUNT";
open FILE,"$command |" || HotSaNIClog::error("unable to run `$command': $!");
while (<FILE>) { $line=$_; }
close FILE;
# for testing purposes...
#
# $line="round-trip min/avg/max = 0.4/0.4/0.4 ms";
# $line="round-trip min/avg/max/mdev = 0.285/0.304/0.324/0.026 ms";
# $line="rtt min/avg/max/mdev = 0.160/0.194/0.238/0.035 ms";
my $factor=1000;
chomp $line;
if ( (index($line,"round-trip") >=0) || (index($line,"rtt") >=0) ) {
(undef,$times)=split /= */,$line;
($min,$avg,$max)=split /[\/ ]/,$times;
if ($times =~ /us/) { $factor=1000000; }
}
else { ($min,$avg,$max)=(0,0,0); }
return($min/$factor,$avg/$factor,$max/$factor);
}
1;