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248 lines
6.2 KiB
Perl
Executable File
248 lines
6.2 KiB
Perl
Executable File
#!/usr/bin/perl
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# -*- Mode: perl; indent-tabs-mode: nil -*-
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use CGI::Carp qw(fatalsToBrowser);
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use CGI::Request; # http://stein.cshl.org/WWW/software/CGI::modules/
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use Date::Calc qw(Add_Delta_Days); # http://www.engelschall.com/u/sb/download/Date-Calc/
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my $req = new CGI::Request;
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my $TESTNAME = lc($req->param('testname'));
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my $UNITS = lc($req->param('units'));
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my $TBOX = lc($req->param('tbox'));
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my $AUTOSCALE = lc($req->param('autoscale'));
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my $SIZE = lc($req->param('size'));
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my $DAYS = lc($req->param('days'));
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my $LTYPE = lc($req->param('ltype'));
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my $POINTS = lc($req->param('points'));
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my $SHOWPOINT = lc($req->param('showpoint'));
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my $AVG = lc($req->param('avg'));
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my $DATAFILE = "db/$TESTNAME/$TBOX";
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my $DATAFILE_AVG = $DATAFILE . "_avg";
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sub make_filenames_list {
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my ($dir) = @_;
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my @result;
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if (-d "$dir") {
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chdir "$dir";
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while(<*>) {
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if( $_ ne 'config.txt' ) {
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push @result, $_;
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}
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}
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chdir "../..";
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}
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return @result;
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}
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# Print out a list of testnames in db directory
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sub print_testnames {
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my ($testname) = @_;
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# HTTP header
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print "Content-type: text/html\n\n<HTML>\n";
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print "<title>testnames</title>";
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print "<center><h2><b>testnames</b></h2></center>";
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print "<p><table width=\"100%\">";
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print "<tr><td align=center>Select one of the following tests:</td></tr>";
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print "<tr><td align=center>\n";
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print " <table><tr><td><ul>\n";
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my @machines = make_filenames_list("db");
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my $machines_string = join(" ", @machines);
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foreach (@machines) {
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print "<li><a href=graph.cgi?&testname=$_$testname>$_</a>\n";
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}
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print "</ul></td></tr></table></td></tr></table>";
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}
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# Print out a list of machines in db/<testname> directory, with links.
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sub print_machines {
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my ($testname) = @_;
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# HTTP header
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print "Content-type: text/html\n\n<HTML>\n";
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print "<title>$TESTNAME machines</title>";
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print "<center><h2><b>$TESTNAME machines:</b></h2></center>";
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print "<p><table width=\"100%\">";
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print "<tr><td align=center>Select one of the following machines:</td></tr>";
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print "<tr><td align=center>\n";
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print " <table><tr><td><ul>\n";
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my @machines = make_filenames_list("db/$testname");
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my $machines_string = join(" ", @machines);
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foreach (@machines) {
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print "<li><a href=graph.cgi?tbox=$_&testname=$testname&autoscale=0&days=0>$_</a>\n";
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}
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print "</ul></td></tr></table></td></tr></table>";
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}
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sub show_graph {
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die "$TBOX: no data file found."
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unless -e $DATAFILE;
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my $PNGFILE = "/tmp/gnuplot.$$";
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# Find gnuplot, sorry this is for solaris.
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my $gnuplot;
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if(-f "/usr/bin/gnuplot") {
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$gnuplot = "/usr/bin/gnuplot";
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} elsif(-f "/usr/local/bin/gnuplot") {
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$gnuplot = "/usr/local/bin/gnuplot";
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$ENV{LD_LIBRARY_PATH} .= "/usr/local/lib";
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} else {
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die "Can't find gnuplot.";
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}
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# Set scaling for x-axis (time)
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my $xscale;
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my $today;
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my $n_days_ago;
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# Get current time, $today.
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my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdat) = localtime();
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$year += 1900;
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$mon += 1;
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$today = sprintf "%04d:%02d:%02d:%02d:%02d:%02d", $year, $mon, $mday, $hour, $min, $sec;
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# Calculate date $DAYS before $today.
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my ($year2, $mon2, $mday2) = Add_Delta_Days($year, $mon, $mday, -$DAYS);
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$n_days_ago= sprintf "%04d:%02d:%02d:%02d:%02d:%02d", $year2, $mon2, $mday2, $hour, $min, $sec;
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if($DAYS) {
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# Assume we want to see 7 days on the graph, so we set the max value also.
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$xscale = "set xrange [\"$n_days_ago\" : \"$today\"]";
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} else {
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$xscale = "";
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}
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# Set scaling for y-axis.
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my $yscale;
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if($AUTOSCALE) {
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$yscale = "";
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} else {
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$yscale = "set yrange [ 0 : ]";
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}
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# Set graph size. Default is (1.0, 1.0).
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my $graph_size;
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if($SIZE) {
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$graph_size = "set size $SIZE, $SIZE";
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} else {
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$graph_size = "";
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}
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# Set units. Assume ms unless otherwise specified.
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unless($UNITS) {
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$UNITS = "ms";
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}
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my $ltype = "lines";
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if($LTYPE eq "steps") {
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$ltype = "steps";
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}
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my $plot_cmd;
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if($POINTS) {
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# lt <point-color>
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$plot_cmd = "plot \"$DATAFILE\" using 1:2 with $ltype, \"$DATAFILE\" using 1:2 with points ls 1";
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} else {
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$plot_cmd = "plot \"$DATAFILE\" using 1:2 with $ltype";
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}
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# Highlight a point, e.g. 2002:03:21:06:52:28,4087
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if($SHOWPOINT) {
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my @xy = split(",",$SHOWPOINT);
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open POINTFILE, ">db/$TESTNAME/point.$$";
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print POINTFILE "$xy[0]\t$xy[1]\n";
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close POINTFILE;
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$plot_cmd .= ", \"db/$TESTNAME/point.$$\" using 1:2 with points ls 4";
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}
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if (($AVG) and (-e $DATAFILE_AVG)) {
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$plot_cmd .= ", \"$DATAFILE_AVG\" using 1:2 with lines ls 3";
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#$plot_cmd .= ", \"$DATAFILE_AVG\" using 1:2 smooth bezier ls 3";
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}
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# interpolate params into gnuplot command
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# Removing set format x, let gnuplot figure this out.
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#
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# ls 1 = small blue points
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# ls 2 = larger blue points
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#
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# lt: 0=grey, 1=red, 2=green, 3=blue, 4=cyan, 5=magenta, 6=yellow,
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# 7=dk.red, 8=dk.green, 9=dk.blue
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my $cmds = qq{
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reset
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$graph_size
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set term png color
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set output "$PNGFILE"
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set title "$TBOX $TESTNAME"
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set key graph 0.1,0.95 reverse spacing .75 width -18
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set linestyle 1 lt 3 lw 1 pt 7 ps .5
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set linestyle 2 lt 3 lw 1 pt 7 ps 1
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set linestyle 3 lt 3 lw 1
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set linestyle 4 lt 8 lw 1 pt 7 ps 3
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set data style points
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set timefmt "%Y:%m:%d:%H:%M:%S"
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set xdata time
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$xscale
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$yscale
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set ylabel "$TESTNAME ($UNITS)"
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set timestamp "Generated: %d/%b/%y %H:%M" 0,-1
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set nokey
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set grid
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$plot_cmd
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$plot_cmd2
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};
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# plot "$DATAFILE" using 1:2 with points ps 1, "$DATAFILE" using 1:2 with lines ls 2
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# Set up command string for gnuplot
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open (GNUPLOT, "| $gnuplot") || die "can't fork: $!";
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print GNUPLOT $cmds;
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close (GNUPLOT) || die "Empty data set? Gnuplot failed to set up the plot command string : $!";
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# Actually do the gnuplot command.
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open (GNUPLOT, "< $PNGFILE") || die "can't read: $!";
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{ local $/; $blob = <GNUPLOT>; }
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close (GNUPLOT) || die "can't close: $!";
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unlink $PNGFILE || die "can't unlink $PNGFILE: $!";
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# Cleanup generated files.
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if($SHOWPOINT) {
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unlink("db/$TESTNAME/point.$$");
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}
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print "Content-type: image/png\n\n";
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print $blob;
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}
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# main
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{
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if(!$TESTNAME) {
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print_testnames();
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} elsif(!$TBOX) {
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print_machines($TESTNAME);
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} else {
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show_graph();
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}
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}
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exit 0;
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