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# Copyright (C) 1999 by USC/ISI
# All rights reserved.
#
# Redistribution and use in source and binary forms are permitted
# provided that the above copyright notice and this paragraph are
# duplicated in all such forms and that any documentation, advertising
# materials, and other materials related to such distribution and use
# acknowledge that the software was developed by the University of
# Southern California, Information Sciences Institute. The name of the
# University may not be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
#
PagePool/EmpFtpTraf set debug_ false
PagePool/EmpFtpTraf set TCPTYPE_ Reno
PagePool/EmpFtpTraf set TCPSINKTYPE_ TCPSink ;#required for SACK1 Sinks.
PagePool/EmpFtpTraf set FID_ASSIGNING_MODE_ 0
PagePool/EmpFtpTraf set VERBOSE_ 0
PagePool/EmpFtpTraf instproc send-file { id svr clnt stcp ssnk size color} {
set ns [Simulator instance]
$ns attach-agent $svr $stcp
$ns attach-agent $clnt $ssnk
$ns connect $stcp $ssnk
if {[PagePool/EmpFtpTraf set FID_ASSIGNING_MODE_] == 0} {
# $stcp set fid_ $id
$stcp set fid_ $color
}
$stcp proc done {} "$self done-send $id $clnt $svr $stcp $ssnk $size [$ns now] [$stcp set fid_]"
puts "req ftp clnt [$clnt id] svr [$svr id] [$ns now] obj $id size $size"
# Send request packets based on empirical distribution
$stcp advanceby $size
}
PagePool/EmpFtpTraf instproc done-send { id clnt svr stcp ssnk size {startTime 0} {fid 0}} {
set ns [Simulator instance]
if {[PagePool/EmpFtpTraf set VERBOSE_] == 1} {
puts "done-send - file:$id srv:[$svr id] clnt:[$clnt id] $size $startTime [$ns now] $fid"
}
# Recycle server-side TCP agents
$ns detach-agent $clnt $ssnk
$ns detach-agent $svr $stcp
$stcp reset
$ssnk reset
$self recycle $stcp $ssnk
}
# XXX Should allow customizable TCP types. Can be easily done via a
# class variable
PagePool/EmpFtpTraf instproc alloc-tcp { size } {
set tcp [new Agent/TCP/[PagePool/EmpFtpTraf set TCPTYPE_]]
$tcp set window_ $size
set fidMode [PagePool/EmpFtpTraf set FID_ASSIGNING_MODE_]
if {$fidMode == 1} {
$self instvar maxFid_
$tcp set fid_ $maxFid_
incr maxFid_
} elseif {$fidMode == 2} {
$self instvar sameFid_
$tcp set fid_ $sameFid_
}
return $tcp
}
PagePool/EmpFtpTraf instproc alloc-tcp-sink {} {
return [new Agent/[PagePool/EmpFtpTraf set TCPSINKTYPE_]]
}
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