ns-agent.tcl
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- #
- # Copyright (c) 1996-1997 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-agent.tcl,v 1.24 2001/08/17 19:00:42 kfall Exp $
- #
- #
- # OTcl methods for the Agent base class
- #
- #
- # The following overload was added to inform users of the backward
- # compatibility issues resulted from having a 32-bit addressing space.
- #
- Agent instproc set args {
- if { [lindex $args 0] == "dst_" } {
- puts "Warning dst_ is no longer being supported in NS. $args"
- puts "Use dst_addr_ and dst_port_ instead"
- $self instvar dst_addr_ dst_port_
- set addr [lindex $args 1]
- set baseAddr [Simulator set McastBaseAddr_]
- if { $addr >= $baseAddr } {
- $self set dst_addr_ $addr
- $self set dst_port_ 0
- } else {
- $self set dst_addr_ [expr ($addr >> 8) ]
- $self set dst_port_ [expr ($addr % 256) ]
- exit
- }
- return
- }
- eval $self next $args
- }
- # Debo
- Agent instproc init {} {
- #$self instvar nodeid_
- #$self set nodeid_ -1
- }
- Agent instproc nodeid {} {
- [$self set node_] id
- }
- Agent instproc port {} {
- $self instvar agent_port_
- return $agent_port_
- }
- #
- # Lower 8 bits of dst_ are portID_. this proc supports setting the interval
- # for delayed acks
- #
- Agent instproc dst-port {} {
- $self instvar dst_port_
- return [expr $dst_port_]
- }
- #
- # Add source of type s_type to agent and return the source
- # Source objects are obsolete; use attach-app instead
- #
- Agent instproc attach-source {s_type} {
- set source [new Source/$s_type]
- $source attach $self
- $self set type_ $s_type
- return $source
- }
- #
- # Add application of type s_type to agent and return the app
- # Note that s_type must be defined as a packet type in packet.h
- #
- Agent instproc attach-app {s_type} {
- set app_ [new Application/$s_type]
- $app_ attach-agent $self
- $self set type_ $s_type
- return $app_
- }
- #
- # Attach tbf to an agent
- #
- Agent instproc attach-tbf { tbf } {
- $tbf target [$self target]
- $self target $tbf
- }
- #
- # OTcl support for classes derived from Agent
- #
- Class Agent/Null -superclass Agent
- Agent/Null instproc init args {
- eval $self next $args
- }
- Agent/LossMonitor instproc log-loss {} {
- }
- #Signalling agent attaches tbf differently as none of its signalling mesages
- #go via the tbf
- Agent/CBR/UDP/SA instproc attach-tbf { tbf } {
- $tbf target [$self target]
- $self target $tbf
- $self ctrl-target [$tbf target]
- }
- #
- # A lot of agents want to store the maxttl locally. However,
- # setting a class variable based on the Agent::ttl_ variable
- # does not help if the user redefines Agent::ttl_. Therefore,
- # Agents interested in the maxttl_ should call this function
- # with the name of their class variable, and it is set to the
- # maximum of the current/previous value.
- #
- # The function itself returns the value of ttl_ set.
- #
- # I use this function from agent constructors to set appropriate vars:
- # for instance to set Agent/rtProto/DV::INFINITY, or
- # Agent/SRM/SSM::ttlGroupScope_
- #
- Agent proc set-maxttl {objectOrClass var} {
- if { [catch "$objectOrClass set $var" value] ||
- ($value < [Agent set ttl_]) } {
- $objectOrClass set $var [Agent set ttl_]
- }
- $objectOrClass set $var
- }
- Agent/TCP instproc init {} {
- eval $self next
- set ns [Simulator instance]
- $ns create-eventtrace Event $self
- }
- #Agent instproc init args {
- # $self next $args
- #}
- #Agent/rtProto instproc init args {
- # puts "DOWN HERE 2"
- # $self next $args
- #}
- #Agent/rtProto/TORA -superclass Agent
- Agent/TORA instproc init args {
- $self next $args
- }
- Agent/TORA set sport_ 0
- Agent/TORA set dport_ 0
- Agent/AODV instproc init args {
- $self next $args
- }
- Agent/AODV set sport_ 0
- Agent/AODV set dport_ 0