raw2xg

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eval 'exec perl -S $0 ${1+"$@"}'		# -*-perl-*-
    if 0;

require 5.001;

($progname) = ($0 =~ m!([^/]+)$!);
sub usage {
    print STDERR <<END;
usage: $progname [options] [trace files...]

options:
    -a		plot acks
    -s SCALE    scale TCP sequence numbers by SCALE
    -n FACTOR	scale flow number by FACTOR
    -m MODULUS  treat TCP sequence numbers as mod MODULUS
    -q		show queueing delay by connecting lines
    -l		show packet length
    -t TITLE    title of test
    -e		plot ecn flags

Traditional ``wrapping'' ns plots (as called from the test scripts)
can be generated with -s 0.01 -m 90.
END
    exit 1;
};
$usage = "usage: $progname [-a] [trace files...]\n";

require 'getopts.pl';
&Getopts('aes:m:n:qlt:') || usage;

$c = 0;
@p = @pc = @pg = @a = @ac = @ae = @d = @lu = @ld = ();
%q_time_seg = ();
$scale = defined($opt_s) ? $opt_s : 1;
$modulus = defined($opt_m) ? $opt_m : 2 ** 31;
$flow_factor = defined($opt_n) ? $opt_n : 1;
$plot_acks = defined($opt_a);
$plot_ecn = defined($opt_e);

$file = $acks = '';

sub translate_point {
    my($time, $seq, $flow) = @_;
    return ($time, $flow * $flow_factor + ($seq % $modulus) * $scale);
}

while (<>) {
    $dfile = $ARGV;
    @F = split;
    /testName/ && ($file = $F[2], next);
    /^[\+-] / && do {
	$c = $F[7] if ($c < $F[7]);
	$is_ack = ($F[4] eq 'ack');
	$is_ecn = ($F[6] =~ /E/);
	$is_cong = ($F[6] =~ /A/);
	$is_echo = ($F[6] =~ /C/); 
	next if ($is_ack && !$plot_acks);

	($x, $y) = translate_point(@F[1, 10, 7]);
	if (defined($opt_q)) {
	    if (/^\+/) {
		$statement = undef;
		$q_time_seg{$is_ack,$y} = $x;
	    };
	    $statement = "move $q_time_seg{$is_ack,$y} $y\ndraw $x $y\n"
		if (/^\-/);
	} else {
	    $statement = "$x $y\n";
	};
	if (defined($statement)) {
	    if ($is_ack) { 
		if ($is_ecn) {
		    push(@ac, $statement);
		} else {
		    push(@a, $statement);
		};
		if ($is_echo) {
		    push(@ae, $statement);
		};
	    } else {
		if ($is_ecn) {
		    push(@pc, $statement);
	        } else {
	            push(@p, $statement);
		};
		if ($is_cong) {
		    push(@pg, $statement);
	        }
	    };
	};
	next;
    };
    /^d / && do {
	($x, $y) = translate_point(@F[1, 10, 7]);
	push(@d, "$x $y\n");
	next;
    };
    /link-down/ &&	(push(@ld, $F[1]), next);
    /link-up/ &&	(push(@lu, $F[1]), next);
}	

if ($file eq '') {
	($file) = ($dfile =~ m!([^/]+)$!);
}

$title  = defined($opt_t) ? $opt_t : $file;
print "TitleText: $title\n" .
    "Device: Postscript\n" .
    "BoundBox: true\n" .
    "Ticks: true\n" .
    (defined($opt_q) ? "" : "NoLines: true\n") .
    "Markers: true\n" .
    "XUnitText: time\n" .
    "YUnitText: packets\n";

@sorted_p = sort (@p);
print "\n\"packets\n", @p;
if (defined($pc[0])) {
    @sorted_pc = sort (@pc);
    print "\n\"ecn_packets\n", @pc[0..3], @sorted_pc;
} else {
    printf "\n\"skip-1\n0 1\n";
}

# insert dummy data sets so we get X's for marks in data-set 4
if (!defined($a[0])) {
    push(@a, "0 1\n");
}
if ($plot_acks) {
    @sorted_a = sort (@a);
    print "\n\"acks\n", @sorted_a;
    if ($plot_ecn && defined($ac[0])) {
	@sorted_ac = sort (@ac);
	print "\n\"ecn-acks\n", @sorted_ac;
    }
    if ($plot_ecn && defined($ae[0])) {
	@sorted_ae = sort (@ae);
	print "\n\"echo-acks\n", @sorted_ae;
    }
} else {
    printf "\n\"skip-2\n0 1\n";
}

#
# Repeat the first line twice in the drops file because often we have only
# one drop and xgraph won't print marks for data sets with only one point.
#
@sorted_d = sort (@d);
print "\n\"drops\n", @d[0..3], @sorted_d;


$c++;
print "\n";
foreach $i (@ld) {
	print "\"link-down\n$i 0\n$i $c\n";
}
foreach $i (@lu) {
	print "\"link-up\n$i 0\n$i $c\n";
}

if ($plot_ecn && defined($pg[0])) {
    if (!defined($d[0])) {
	printf "\n\"skip-3\n0 1\n";
    }
    @sorted_pg = sort (@pg);
    print "\n\"cong_act_packets\n", @pg[0..3], @sorted_pg;
} 

exit 0;