srm-debug.tcl

来自「一款用来进行网络模拟的软件」· TCL 代码 · 共 71 行

# 
#  Copyright (c) 1997 by the University of Southern California
#  All rights reserved.
# 
#  This program is free software; you can redistribute it and/or
#  modify it under the terms of the GNU General Public License,
#  version 2, as published by the Free Software Foundation.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License along
#  with this program; if not, write to the Free Software Foundation, Inc.,
#  59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
#
#  The copyright of this module includes the following
#  linking-with-specific-other-licenses addition:
#
#  In addition, as a special exception, the copyright holders of
#  this module give you permission to combine (via static or
#  dynamic linking) this module with free software programs or
#  libraries that are released under the GNU LGPL and with code
#  included in the standard release of ns-2 under the Apache 2.0
#  license or under otherwise-compatible licenses with advertising
#  requirements (or modified versions of such code, with unchanged
#  license).  You may copy and distribute such a system following the
#  terms of the GNU GPL for this module and the licenses of the
#  other code concerned, provided that you include the source code of
#  that other code when and as the GNU GPL requires distribution of
#  source code.
#
#  Note that people who make modified versions of this module
#  are not obligated to grant this special exception for their
#  modified versions; it is their choice whether to do so.  The GNU
#  General Public License gives permission to release a modified
#  version without this exception; this exception also makes it
#  possible to release a modified version which carries forward this
#  exception.
#
#	Author:		Kannan Varadhan	<[e-mail]>
#	Version Date:	Mon Jun 30 15:51:33 PDT 1997
#
# @(#) $Header: /cvsroot/nsnam/ns-2/tcl/mcast/srm-debug.tcl,v 1.4 2005/09/16 03:05:44 tomh Exp $ (USC/ISI)
#

SRM/request instproc compute-delay {} {
	$self instvar C1_ C2_ agent_ sender_ backoff_
	set unif [uniform 0 1]
	set rancomp [expr $C1_ + $C2_ * $unif]
	set dist [$agent_ distance? $sender_]
	set delay [expr $rancomp * $dist]
	set absdelay [expr $delay * $backoff_]
	
	$self evTrace Q INTERVALS C1 $C1_ C2 $C2_ d $dist i $backoff_	\
			U $unif |D| $absdelay
	set delay
}

SRM/repair instproc compute-delay {} {
	$self instvar D1_ D2_ agent_ requestor_
	set unif [uniform 0 1]
	set rancomp [expr $D1_ + $D2_ * $unif]
	set dist [$agent_ distance? $requestor_]
	set delay [expr $rancomp * $dist]

	$self evTrace P INTERVALS D1 $D1_ D2 $D2_ d $dist U $unif |D| $delay
	set delay
}