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source ../../../ex/asym/util.tcl
set WebCScount 0
Class WebCS
proc createTransfer {ns src dst tcpargs tcptrace sinkargs session sessionargs doneargs xfersz} {
set tcp [eval createTcpSource $tcpargs]
$tcp proc done {} " $doneargs"
if {$xfersz < 1} {
$tcp set packetSize_ [expr int($xfersz*1000)]
}
set sink [eval createTcpSink $sinkargs]
set ftp [createFtp $ns $src $tcp $dst $sink]
if {$session} {
set newSessionFlag false
set newSessionFlag [eval setupTcpSession $tcp $sessionargs]
setupTcpTracing $tcp $tcptrace $newSessionFlag
}
setupTcpTracing $tcp $tcptrace $session
return $ftp
}
proc numberOfImages {} {
global numimg
return $numimg
}
proc htmlRequestSize {} {
global reqsize
return $reqsize
}
proc htmlReplySize {} {
global htmlsize
return $htmlsize
}
proc imageRequestSize {} {
global reqsize
return $reqsize
}
proc imageResponseSize {} {
global imgsize
return $imgsize
}
WebCS instproc init {ns client server tcpargs tcptrace sinkargs {phttp 0} {httpseq 0} {session false} {sessionargs ""}} {
$self instvar ns_
$self instvar ftpCS1_ ftpCS2_
$self instvar ftpSC1_ ftpSC2_
$self instvar numImg_ htmlReqsz_ htmlReplsz_ imgReqsz_ imgReplsz_
$self instvar numImgRecd_ numImgRepl_
$self instvar numImgReq_
$self instvar starttime_ endtime_
$self instvar phttp_ httpseq_ session_
$self instvar finish_
global WebCScount
incr WebCScount
set ns_ $ns
set phttp_ $phttp
set httpseq_ $httpseq
set session_ $session
# compute transfer sizes
set numImg_ [numberOfImages]
set htmlReqsz_ [htmlRequestSize]
set htmlReplsz_ [htmlReplySize]
set imgReqsz_ [imageRequestSize]
set imgReplsz_ [imageResponseSize]
# create "ftp's" for each transfer
set ftpCS1_ [createTransfer $ns $client $server "TCP/Newreno" $tcptrace $sinkargs $session $sessionargs "$self htmlReqDone" $htmlReqsz_]
set ftpSC1_ [createTransfer $ns $server $client $tcpargs $tcptrace $sinkargs $session $sessionargs "$self htmlReplDone" $htmlReplsz_]
# XXX assume request to be of fixed size regardless of numImg_
# unless HTTP with sequential connections is being employed
if {$httpseq} {
set numImgReq_ $numImg_
for {set i 0} {$i < $numImg_} {incr i 1} {
set ftpCS2_($i) [createTransfer $ns $client $server "TCP/Newreno" $tcptrace $sinkargs $session $sessionargs "$self imgReqDone" $imgReqsz_]
}
} else {
set numImgReq_ 1
set ftpCS2_(0) $ftpCS1_
}
for {set i 0} {$i < $numImg_} {incr i 1} {
if {$phttp} {
set ftpSC2_($i) $ftpSC1_
# if {$i == 0} {
# set ftpSC2_($i) [createTransfer $ns $server $client $tcpargs $tcptrace $sinkargs $session $sessionargs "$self imgReplDone" $imgReplsz_]
# } else {
# set ftpSC2_($i) $ftpSC2_(0)
# }
} else {
set ftpSC2_($i) [createTransfer $ns $server $client $tcpargs $tcptrace $sinkargs $session $sessionargs "$self imgReplDone" $imgReplsz_]
}
}
}
WebCS instproc start {} {
$self instvar ns_
$self instvar ftpCS1_ ftpCS2_
$self instvar ftpSC1_ ftpSC2_
$self instvar numImg_ htmlReqsz_ htmlReplsz_ imgReqsz_ imgReplsz_
$self instvar numImgRecd_ numImgRepl_
$self instvar numImgReq_
$self instvar starttime_ endtime_
$self instvar phttp_ httpseq_ session_
set starttime_ [$ns_ now]
set numImgRecd_ 0
set numImgRepl_ 0
if {$htmlReqsz_ < 1} {
$ftpCS1_ producemore 1
} else {
$ftpCS1_ producemore $htmlReqsz_
}
}
WebCS instproc htmlReqDone {} {
$self instvar ns_
$self instvar ftpCS1_ ftpCS2_
$self instvar ftpSC1_ ftpSC2_
$self instvar numImg_ htmlReqsz_ htmlReplsz_ imgReqsz_ imgReplsz_
$self instvar numImgRecd_ numImgRepl_
$self instvar numImgReq_
$self instvar starttime_ endtime_
$self instvar phttp_ httpseq_ session_
$ftpSC1_ producemore $htmlReplsz_
}
WebCS instproc htmlReplDone {} {
$self instvar ns_
$self instvar ftpCS1_ ftpCS2_
$self instvar ftpSC1_ ftpSC2_
$self instvar numImg_ htmlReqsz_ htmlReplsz_ imgReqsz_ imgReplsz_
$self instvar numImgRecd_ numImgRepl_
$self instvar numImgReq_
$self instvar starttime_ endtime_
$self instvar phttp_ httpseq_ session_
[$ftpCS1_ agent] proc done {} "$self imgReqDone"
[$ftpSC1_ agent] proc done {} "$self imgReplDone"
if {$imgReqsz_ < 1} {
$ftpCS2_($numImgRecd_) producemore 1
} else {
$ftpCS2_($numImgRecd_) producemore $imgReqsz_
}
}
WebCS instproc imgReqDone {} {
$self instvar ns_
$self instvar ftpCS1_ ftpCS2_
$self instvar ftpSC1_ ftpSC2_
$self instvar numImg_ htmlReqsz_ htmlReplsz_ imgReqsz_ imgReplsz_
$self instvar numImgRecd_ numImgRepl_
$self instvar numImgReq_
$self instvar starttime_ endtime_
$self instvar phttp_ httpseq_ session_
if {$httpseq_} {
$ftpSC2_($numImgRepl_) producemore $imgReplsz_
incr numImgRepl_
} else {
for {} {$numImgRepl_ < $numImg_} {incr numImgRepl_ 1} {
$ftpSC2_($numImgRepl_) producemore $imgReplsz_
}
}
}
WebCS instproc imgReplDone {} {
$self instvar ns_
$self instvar ftpCS1_ ftpCS2_
$self instvar ftpSC1_ ftpSC2_
$self instvar numImg_ htmlReqsz_ htmlReplsz_ imgReqsz_ imgReplsz_
$self instvar numImgRecd_ numImgRepl_
$self instvar numImgReq_
$self instvar starttime_ endtime_
$self instvar phttp_ httpseq_ session_
incr numImgRecd_
if {($numImgRecd_ == $numImg_) || $phttp_} {
$self end
} elseif {$httpseq_} {
$self htmlReplDone
}
}
WebCS instproc end {} {
$self instvar ns_
$self instvar ftpCS1_ ftpCS2_
$self instvar ftpSC1_ ftpSC2_
$self instvar numImg_ htmlReqsz_ htmlReplsz_ imgReqsz_ imgReplsz_
$self instvar numImgRecd_ numImgRepl_
$self instvar numImgReq_
$self instvar starttime_ endtime_
$self instvar phttp_ httpseq_ session_
$self instvar finish_
global WebCScount
set endtime_ [$ns_ now]
puts -nonewline stderr "[format "%.3f " [expr $endtime_ - $starttime_]]"
if {$phttp_} {
set nrexmit [[$ftpSC2_(0) agent] set nrexmit_]
} elseif {$session_} {
set nrexmit [[[$ftpSC2_(0) agent] session] set nrexmit_]
} else {
set nrexmit 0
for {set i 0} {$i < $numImg_} {incr i} {
incr nrexmit [[$ftpSC2_($i) agent] set nrexmit_]
}
}
puts -nonewline stderr "$nrexmit "
flush stderr
incr WebCScount -1
if {$WebCScount == 0} {
eval "$finish_"
}
# $ns_ at [expr [$ns_ now] + 3] "$self start"
# [$ftpCS1_ agent] proc done {} "$self htmlReqDone"
# [$ftpSC1_ agent] proc done {} "$self htmlReplDone"
}
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