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[/] [branches/] [HotSaNIC-0.5.0-pre6/] [modules/] [ping/] [platform/] [common.pm] - Blame information for rev 2

 

Line No. Rev Author Line
11simandlpackage HotSaNICmod::common;
2 
3sub version {
4 ($VERSION = '$Revision: 1.9 $') =~ s/.*(\d+\.\d+).*/$1/;
5 return "common.pm $VERSION";
6 }
7 
8sub configure {
9 %MODCONF=HotSaNICparser::get_moduleconfig(".",(INTERVAL=>"var",TYPE=>"var",PARALLEL=>"var",METHOD=>"var",HOST=>"array",SCALE=>"var",UPPER=>"var",SYSPING=>"var",PROTOCOL=>"var"));
10 
11# convert old settings entries
12#
13 if ($MODCONF{SCALE} ne "") { $MODCONF{GRAPH_STYLE}=$MODCONF{SCALE}; }
14 if ($MODCONF{UPPER} ne "") { $MODCONF{GRAPH_MAX}=$MODCONF{UPPER}; }
15 if ($MODCONF{SYSPING} eq "1") { $MODCONF{METHOD}="ping"; }
16 else {
17 if ($MODCONF{PROTOCOL} eq "tcp") { $MODCONF{METHOD}="perl-tcp"; }
18 else { $MODCONF{METHOD}="perl-icmp"; }
19 }
20 
21# check requirements
22#
23 if (index($MODCONF{METHOD},"perl") >= 0) {
24 eval { require Net::Ping; };
25 if ($@) {
26 HotSaNIClog::warn("Perlmodule Net::Ping not installed - falling back to system's ping command.");
27 $MODCONF{METHOD}="ping";
28 }
29 }
30 return %MODCONF;
31 }
32 
33sub get_names {
34 my $entry=shift || ",";
35 my $host="";
36 my $community="";
37 
38 my ($item,$description,$method)=split /,/,$entry;
39 if (! defined $method) { $method=""; }
40 if( index($item, "SNMP:") >= 0) { (undef,$host,$community,$item) = split /:/, $item; }
41 if ($host ne "") { $name="$host:$item"; }
42 else { $name="$item"; }
43 ($dbname=$name) =~ s/:/_/g;
44 $file=$name;
45 
46 if ($method ne "") {
47 $name="$name ($method)";
48 $dbname="$dbname-$method";
49 $file="$file-$method";
50 }
51 
52 
53 return ($host,$community,$item,$dbname,$name,$file,$description);
54 }
55 
56#### Usage:
57#### ping ("host or IP",timeout (ms), wait (ms), count, protocol);
58####
59#### Return:
60#### min/avg/max (ms)
61sub ping {
62 my $TIMING="";
63 
64 eval { require Time::HiRes; };
65 if ($@) { HotSaNIClog::warn("Time::HiRes not found!"); }
66 else { $TIMING="Time::HiRes"; require Time::HiRes; }
67 
68 if ($TIMING eq "") {
69 eval { require 'sys/syscall.ph'; };
70 if ($@) { HotSaNIClog::warn("syscall.ph not found!"); }
71 else { $TIMING="syscall"; require 'sys/syscall.ph'; }
72 }
73 
74 if ($TIMING eq "") {
75 HotSaNIClog::error("No suitable timing method found!");
76 HotSaNIClog::info("Please consider to install the Time::HiRes module from CPAN.");
77 HotSaNIClog::info("nYou can get it at http://www.cpan.org/");
78 return (0,0,0);
79 }
80 
81 use Net::Ping;
82 
83 my $HOST=shift || "127.0.0.1";
84 my $TIMEOUT=shift || 50;
85 my $WAIT=shift || 1000;
86 my $COUNT=shift || 10;
87 my $PROTOCOL=shift || "icmp";
88 
89 if ($TIMEOUT<50) { $TIMEOUT=50; }
90 $TIMEOUT/=1000;
91 
92 $WAIT/=1000;
93 
94 if ($COUNT<5) { $COUNT=5; }
95 
96 $min=10000000; $max=0; $add=0;
97 
98 $p = Net::Ping->new($PROTOCOL);
99 $TIMEVAL_T = "LL";
100 $done = $start = pack($TIMEVAL_T, ());
101 
102 $replies=0;
103 # $first_reply=$p->ping($HOST, $TIMEOUT);
104 
105 for ($i=0; $i < $COUNT ; $i++) {
106 
107 if ($TIMING eq "syscall") { syscall(&SYS_gettimeofday, $start, 0) != -1 or dupe_control("die",$MODNAME,": gettimeofday: $!"); }
108 if ($TIMING eq "Time::HiRes") { $start=Time::HiRes::time(); }
109 $reply=$p->ping($HOST, $TIMEOUT);
110 if ($TIMING eq "syscall") {
111 syscall(&SYS_gettimeofday, $done, 0) != -1 or dupe_control("die",$MODNAME,": gettimeofday: $!");
112 @start = unpack($TIMEVAL_T, $start);
113 @done = unpack($TIMEVAL_T, $done);
114 $time=($done[0]-$start[0])*1000 + ($done[1]-$start[1])/1000;
115 }
116 if ($TIMING eq "Time::HiRes") {
117 $done=Time::HiRes::time();
118 $time=$done-$start;
119 }
120 
121 if ( $reply ) {
122 push @timearr,$time;
123 $replies++;
124 $add+=$time;
125 }
126 select (undef, undef,undef,$WAIT);
127 }
128 
129 $p->close();
130 
131 $avg=$add/$replies if $replies>0;
132 $replies=0;$add=0;
133 foreach (@timearr) {
134 if ($_ < 3*$avg) {
135 $add+=$_;
136 $replies++;
137 $min=$_ if $_<$min;
138 $max=$_ if $_>$max;
139 }
140 }
141 if ($replies eq 0) { $replies++; $min=0; $max=0; $add=0; }
142 $avg=$add/$replies;
143 return($min,$avg,$max);
144 }
145 
146 
147sub sysping {
148 my($HOST,$TIMEOUT,$WAIT,$COUNT)=@_;
149 $TIMEOUT/=1000;
150 $WAIT/=1000;
151 
152 my $command="ping $HOST -c $COUNT -w 1 -i 0.2";
153 
154 open FILE,"$command |" || HotSaNIClog::error("unable to run `$command': $!");
155 while (<FILE>) { $line=$_; }
156 close FILE;
157 
158# for testing purposes...
159#
160# $line="round-trip min/avg/max = 0.4/0.4/0.4 ms";
161# $line="round-trip min/avg/max/mdev = 0.285/0.304/0.324/0.026 ms";
162# $line="rtt min/avg/max/mdev = 0.160/0.194/0.238/0.035 ms";
163 
164 my $factor=1000;
165 
166 chomp $line;
167 if ( (index($line,"round-trip") >=0) || (index($line,"rtt") >=0) ) {
168 (undef,$times)=split /= */,$line;
169 ($min,$avg,$max)=split /[\/ ]/,$times;
170 if ($times =~ /us/) { $factor=1000000; }
171 }
172 else { ($min,$avg,$max)=(0,0,0); }
173 
174 return($min/$factor,$avg/$factor,$max/$factor);
175 }
176 
177 
178sub echoping {
179 my($HOST,$TIMEOUT,$WAIT,$COUNT,$PROTO)=@_;
180 $TIMEOUT/=1000;
181 $WAIT/=1000;
182 
183 my $prt="";
184 if ($PROTO eq "udp") { $prt="-u "; }
185 elsif ($PROTO eq "icp") { $prt="-i / "; }
186 elsif ($PROTO eq "http") { $prt="-h / "; }
187 elsif ($PROTO eq "smtp") { $prt="-S "; }
188 elsif ($PROTO eq "disc") { $prt="-d "; }
189 elsif ($PROTO eq "cgen") { $prt="-c "; }
190 
191 my $command="echoping $prt$HOST -w $WAIT -t $TIMEOUT -n $COUNT";
192 
193 my ($min,$avg,$max)=(0,0,0);
194 
195 open FILE,"$command |" || HotSaNIClog::error("unable to run `$command': $!");
196 while (<FILE>) {
197 chomp;
198 @items=split;
199 if ($items[0] eq "Minimum") { $min=$items[2]; }
200 if ($items[0] eq "Maximum") { $max=$items[2]; }
201 if ($items[0] eq "Average") { $avg=$items[2]; }
202 }
203 close FILE;
204# Minimum time: 0.009705 seconds (26378 bytes per sec.)
205# Maximum time: 0.012159 seconds (21054 bytes per sec.)
206# Average time: 0.010741 seconds (23834 bytes per sec.)
207# Standard deviation: 0.000632
208# Median time: 0.010499 seconds (24383 bytes per sec.)
209 
210 return($min,$avg,$max);
211 }
212 
2131;
214 

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