plot.tcl

无线个域网（WPAN）就是在个人周围空间形成的无线网络

    $self create_flow_graph $label_ $linkflowfile_ $linkgraphfile_ \
	"$self forcedmakeawk forced"
    puts "running xgraph for comparing drops and arrivals..."
    if { $format_ == "xgraph" } {
	exec xgraph -bb -tk -nl -m -lx 0,100 -ly 0,100 -x "% of data bytes" -y "% of discards (in packets).  Queue in SETME" $linkgraphfile_ &
    } 
    puts stderr "graph format $format_ unknown"
}

# plot drops vs. arrivals, for combined metric drops.
PostProcess instproc plot_dropscombined { name flowgraphfile } {
        $self instvar format_
        $self instvar label_ linkflowfile_ linkgraphfile_

    $self create_flow_graph $label_ $linkflowfile_ $linkgraphfile_ \
	"$self allmakeawk"
    puts "running xgraph for comparing drops and arrivals..."
    if { $format_ == "xgraph" } {
	exec xgraph -bb -tk -nl -m -lx 0,100 -ly 0,100 -x "% of data bytes" -y "% of discards (in packets).  Queue in SETME" $linkgraphfile_ &
    } 
    puts stderr "graph format $format_ unknown"
}

#--------------------------------------------------------------------------

# awk code used to produce:
#      x axis: time
#      y axis: per-flow drop ratios
PostProcess instproc time_awk { } {
        set awkCode {
            BEGIN { print "\"flow 0"}
            {
                if ($1 != prevtime && prevtime > 0){
			if (cat1 + cat0 > 0) {
			  cat1_part = frac_packets * cat1 / ( cat1 + cat0 )
			  cat0_part = frac_bytes * cat0 / ( cat1 + cat0 )
                          print prevtime, 100.0 * ( cat1_part + cat0_part )
			}
			frac_bytes = 0; frac_packets = 0; 
			cat1 = 0; cat0 = 0;
			prevtime = $1
		}
		if ($5 != prev) {
			print " "; print "\"flow "prev;
			prev = $5
		}
		if ($3==0) { 
			if ($15>0) {frac_bytes = $11 / $15}
			else {frac_bytes = 0}
			cat0 = $14
		} if ($3==1) { 
			if ($14>0) {frac_packets = $10 / $14}
			else {frac_packets = 0}
			cat1 = $14
		}
		prevtime = $1
            }
	    END {
		cat1_part = frac_packets * cat1 / ( cat1 + cat0 )
		cat0_part = frac_bytes * cat0 / ( cat1 + cat0 )
                print prevtime, 100.0 * ( cat1_part + cat0_part )
	    }
        }
        return $awkCode
}

# plot time vs. per-flow drop ratio
PostProcess instproc create_time_graph { graphtitle graphfile } {
        global flowfile awkprocedure

        exec rm -f $graphfile
        set outdesc [open $graphfile w]
        #
        # this next part is xgraph specific
        #
        puts $outdesc "TitleText: $graphtitle"
        puts $outdesc "Device: Postscript"

        puts "writing flow xgraph data to $graphfile..."

        exec sort -n +1 -o $flowfile $flowfile
        exec awk [time_awk] $flowfile >@ $outdesc
        close $outdesc
}

# Plot per-flow bandwidth vs. time.
PostProcess instproc plot_dropmetric { name } {
	$self instvar format_ linkgraphfile_
	$self create_time_graph $name $linkgraphfile_
	puts "running time xgraph for plotting arrivals..."
	if { $format_ == "xgraph" } {
	  exec xgraph -bb -tk -m -ly 0,100 -x "time" -y "Bandwidth(%)" $timegraphfile &
	}
	puts stderr "graph format $format_ unknown"
}

#--------------------------------------------------------------------------

# awk code used to produce:
#      x axis: time
#      y axis: per-flow bytes
PostProcess instproc byte_awk { } {
	puts "In byte_awk"
        set awkCode {
		BEGIN { new = 1; prev = -1 }
		{
			class = $1;
			time = $2;
			bytes = $3;
			if (class != prev) {
				prev = class;
				if (new==1) {new=0;}
				else {print " "; }
				print "\"flow "prev;
			}
			if (bytes > oldbytes[class]) {
				if (oldtime[class]==0) {
					interval = $4;
				} else { interval = time - oldtime[class]; }
				if (interval > 0) {
					bitsPerSecond = 8*(bytes - oldbytes[class])/interval;
				}
				print time, 100*bitsPerSecond/(bandwidth*1000);
				#print time, 100*bitsPerSecond/(bandwidth*1000);
			}
			oldbytes[class] = bytes;
			oldtime[class] = time;
		}
        }
        return $awkCode
}

PostProcess instproc reclass_awk { } {
	set awkCode {
		{
		print " ";
		printf "\"%s\n", $3
		print $1, 0;
		print $1, 100;
		}
	}
}

# plot time vs. per-flow bytes
PostProcess instproc create_bytes_graph { graphtitle in out bandwidth } {
        set tmpfile /tmp/fg1[pid]
	# print: time class bytes interval
	#change $4d to %4d - the last token - ratul
	set awkCode {
		{ printf "%4d %8d %16d %4d\n", $4, $2, $6, $7; }
	}

	puts "removing graph file: $out"
        exec rm -f $out
        set outdesc [open $out w]
        #
        # this next part is xgraph specific
        #
        puts $outdesc "TitleText: $graphtitle"
        puts $outdesc "Device: Postscript"

        exec rm -f $tmpfile 
        puts "writing flow data to $out ... using $in"
	exec awk $awkCode $in | sort -n -s > $tmpfile
        exec awk [$self byte_awk] bandwidth=$bandwidth $tmpfile >@ $outdesc
	exec rm -f $tmpfile
        close $outdesc
}

# Plot per-flow bytes vs. time.
PostProcess instproc plot_bytes { bandwidth } {
	$self instvar format_
	$self instvar label_ linkflowfile_ linkgraphfile_
	$self create_bytes_graph $label_ $linkflowfile_ $linkgraphfile_ $bandwidth 
	puts "running $format_ for plotting per-flow bytes..."
	if { $format_ == "xgraph" } {
		puts "In graph drawing"
		exec xgraph -bb -tk -m -ly 0,100 -x "time" -y "Bandwidth(%)" $linkgraphfile_ &
		return
	}
	if { $format_ == "" } {
		puts stderr "output format not defined"
		return
	}
	puts stderr "output format $format_ not supported"
}
#--------------------------------------------------------

# awk code used to produce:
#      x axis: time
#      y axis: aggregate drop ratios in packets
PostProcess instproc frac_awk { } {
        set awkCode {
            {
                if ($1 > prevtime){
                        if (prevtime > 0) print prevtime, 100.0 * frac
			prevtime = $1
			frac = $16/$12
		}
            }
	    END { print prevtime, 100.0 * frac }
        }
        return $awkCode
}

# plot time vs. aggregate drop ratio
PostProcess instproc create_frac_graph { graphtitle graphfile } {

        exec rm -f $graphfile
        set outdesc [open $graphfile w]
        #
        # this next part is xgraph specific
        #
        puts $outdesc "TitleText: $graphtitle"
        puts $outdesc "Device: Postscript"

        puts "writing flow xgraph data to $graphfile..."

        exec sort -n +1 -o $flowfile $flowfile
        exec awk [$self frac_awk] $flowfile >@ $outdesc
        close $outdesc
}

# plot true average of arriving packets that are dropped
PostProcess instproc plot_dropave { name } {
	$self instvar format_
	$self create_frac_graph $name $fracgraphfile 
	puts "running time xgraph for plotting drop ratios..."
	if { $format_ == "xgraph" } {
	  exec xgraph -bb -tk -m -x "time" -y "Drop_Fraction(%)" $fracgraphfile &
	}
    puts stderr "graph format $format_ unknown"
}

#--------------------------------------------------------------------

# plot tcp-friendly bandwidth 
# "factor" is packetsize/rtt, for packetsize in bytes and rtt in msec.
# bandwidth is in Kbps, goodbandwidth is in Bps
PostProcess instproc create_friendly_graph { graphtitle graphfile ratiofile bandwidth } {
	set awkCode {
		BEGIN { print "\"reference"; drops=0; packets=0;}
		{
		drops = $6 - drops;
		packets = $4 - packets;
		rtt = 0.06
		if (drops > 0) {
		  dropratio = drops/packets;
		  goodbandwidth = 1.22*factor/sqrt(dropratio);
		  print $2, 100*goodbandwidth*8/(bandwidth*1000);
		}
		drops = $6; packets = $4;
		}
	}
	set packetsize 1500
	set rtt 0.06
	set factor [expr $packetsize / $rtt]

        exec rm -f $graphfile
        set outdesc [open $graphfile w]
        #
        # this next part is xgraph specific
        #
        puts $outdesc "TitleText: $graphtitle"
        puts $outdesc "Device: Postscript"

        puts "writing friendly xgraph data to $graphfile..."

	exec cat Ref >@ $outdesc
	exec awk $awkCode bandwidth=$bandwidth factor=$factor $ratiofile >@ $outdesc
        close $outdesc
}

# Plot tcp-friendly bandwidth.
PostProcess instproc plot_friendly { name bandwidth } {
	$self instvar format_ 
	puts "beginning time xgraph for tcp-friendly bandwidth..."
	$self create_friendly_graph $name $friendlygraphfile $ratiofile $bandwidth
	puts "running time xgraph for tcp-friendly bandwidth..."
	if { $format_ == "xgraph" } {
	  exec xgraph -bb -tk -m -ly 0,200 -x "time" -y "Bandwidth(%)" $friendlygraphfile &
	}
    puts stderr "graph format $format_ unknown"
}

#----------------------------------------------------------------

# x: flow id
# y: total number of bytes received in the simulation

PostProcess instproc plot_cumBytes {infile outfile} {
	$self instvar format_ label_
	set awkcode {
		{ bytes[$4] = $6 }
		END { for (i in bytes) printf("%d %d\n", i, bytes[i])}
	}

	set outdesc [open $outfile w]
	puts $outdesc "TitleText: $label_"
	puts $outdesc "Device: Postscript"

	exec awk $awkcode $infile >@ $outdesc
	close $outdesc

	if { $format_ == "xgraph" } {
		exec xgraph -bb -tk -bar -brw 0.5 -nl -x "flowID" -y "Bytes Sent" $outfile &
	}

}

PostProcess instproc plot_tcpRate {file} {

	$self instvar format_	

	if { $format_ == "xgraph" } {
		exec xgraph -bb -tk -bar -brw 0.5 -nl -x "flowID" -y "Rate" $file &
	}

}