ns-bsnode.tcl
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上传日期:2015-12-11
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- # -*- Mode:tcl; tcl-indent-level:8; tab-width:8; indent-tabs-mode:t -*-
- #
- # Copyright (c) 1996-1998 Regents of the University of California.
- # All rights reserved.
- #
- # Redistribution and use in source and binary forms, with or without
- # modification, are permitted provided that the following conditions
- # are met:
- # 1. Redistributions of source code must retain the above copyright
- # notice, this list of conditions and the following disclaimer.
- # 2. Redistributions in binary form must reproduce the above copyright
- # notice, this list of conditions and the following disclaimer in the
- # documentation and/or other materials provided with the distribution.
- # 3. All advertising materials mentioning features or use of this software
- # must display the following acknowledgement:
- # This product includes software developed by the MASH Research
- # Group at the University of California Berkeley.
- # 4. Neither the name of the University nor of the Research Group may be
- # used to endorse or promote products derived from this software without
- # specific prior written permission.
- #
- # THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- # ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- # SUCH DAMAGE.
- #
- # $Header: /cvsroot/nsnam/ns-2/tcl/lib/ns-bsnode.tcl,v 1.8 2000/09/14 18:19:27 haoboy Exp $
- #
- #THE CODE INCLUDED IN THIS FILE IS USED FOR BACKWARD COMPATIBILITY ONLY
- #
- #
- # Special Base station nodes for communicating between wired and
- # wireless topologies in ns. Base stations are a hybrid form between
- # mobilenodes and hierarchical nodes.
- #
- # XXX does otcl support multiple inheritence? then maybe could
- # inheriting from hiernode and mobilenode.
- #
- #
- # The Node/MobileNode/BaseStationNode class
- #
- # ======================================================================
- Class Node/MobileNode/BaseStationNode -superclass Node/MobileNode
- Node/MobileNode/BaseStationNode instproc init args {
- $self next $args
- }
- Node/MobileNode/BaseStationNode instproc mk-default-classifier {} {
- $self instvar classifiers_
- set levels [AddrParams hlevel]
- for {set n 1} {$n <= $levels} {incr n} {
- set classifiers_($n) [new Classifier/Hash/Dest/Bcast 32]
- $classifiers_($n) set mask_ [AddrParams NodeMask $n]
- $classifiers_($n) set shift_ [AddrParams NodeShift $n]
- }
- }
- Node/MobileNode/BaseStationNode instproc entry {} {
- #XXX although mcast is not supported with wireless networking currently
- $self instvar ns_
- if ![info exist ns_] {
- set ns_ [Simulator instance]
- }
- if [$ns_ multicast?] {
- $self instvar switch_
- return $switch_
- }
- $self instvar classifiers_
- return $classifiers_(1)
- }
- Node/MobileNode/BaseStationNode instproc add-target {agent port } {
- $self instvar dmux_ classifiers_
- $agent set sport_ $port
- set level [AddrParams hlevel]
- if { $port == [Node set rtagent_port_] } {
- if { [Simulator set RouterTrace_] == "ON" } {
- #
- # Send Target
- #
- set sndT [cmu-trace Send "RTR" $self]
- $sndT target [$self set ll_(0)]
- $agent target $sndT
- #
- # Recv Target
- #
- set rcvT [cmu-trace Recv "RTR" $self]
- $rcvT target $agent
- for {set i 1} {$i <= $level} {incr i} {
- $classifiers_($i) defaulttarget $rcvT
- $classifiers_($i) bcast-receiver $rcvT
- }
- $dmux_ install $port $rcvT
- } else {
- $agent target [$self set ll_(0)]
- for {set i 1} {$i <= $level} {incr i} {
- $classifiers_($i) bcast-receiver $agent
- $classifiers_($i) defaulttarget $agent
- }
- $dmux_ install $port $agent
- }
- } else {
- if { [Simulator set AgentTrace_] == "ON" } {
- #
- # Send Target
- #
- set sndT [cmu-trace Send AGT $self]
- $sndT target [$self entry]
- $agent target $sndT
- #
- # Recv Target
- #
- set rcvT [cmu-trace Recv AGT $self]
- $rcvT target $agent
- $dmux_ install $port $rcvT
- } else {
- $agent target [$self entry]
- $dmux_ install $port $agent
- }
- }
- }