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/*
* Network model with Wireless layout
*
*/
#include <stdlib.h>
#include <math.h>
#include <float.h>
#include "random.h"
#include "view.h"
#include "netview.h"
#include "animation.h"
#include "queue.h"
#include "edge.h"
#include "node.h"
#include "agent.h"
#include "sincos.h"
#include "state.h"
#include "packet.h"
#include "wnetmodel.h"
class WirelessNetworkModelClass : public TclClass {
public:
WirelessNetworkModelClass() : TclClass("NetworkModel/Wireless") {}
TclObject* create(int argc, const char*const* argv) {
if (argc < 5)
return 0;
return (new WirelessNetModel(argv[4]));
}
} wirelessnetworkmodel_class;
WirelessNetModel::WirelessNetModel(const char *animator) :
NetModel(animator), edges_(0) {
bind("Wpxmax_", &pxmax_);
bind("Wpymax_", &pymax_);
}
WirelessNetModel::~WirelessNetModel() {
}
int WirelessNetModel::command(int argc, const char *const *argv) {
if (argc == 2) {
if (strcmp(argv[1], "layout") == 0) {
/*
* <net> layout
*/
layout();
NetModel::set_wireless();
return (TCL_OK);
}
}
if (argc == 5) {
if (strcmp(argv[1], "select-pkt") == 0) {
NetModel::selectPkt(atoi(argv[2]), atoi(argv[3]), atoi(argv[4]));
return (TCL_OK);
}
}
return (NetModel::command(argc, argv));
}
void WirelessNetModel::layout()
{
Node *n;
for (n = nodes_; n != 0; n = n->next_)
for (Edge* e = n->links(); e != 0; e = e->next_)
placeEdge(e, n);
nymax_ = pymax_ ;
nymin_ = 0 ;
}
void WirelessNetModel::BoundingBox(BBox& bb)
{
bb.xmin = bb.ymin = 0;
bb.xmax = pxmax_;
bb.ymax = pymax_;
for (Animation* a = drawables_; a != 0; a = a->next())
a->merge(bb);
}
void WirelessNetModel::update(double now)
{
Animation *a, *n;
for (a = animations_; a != 0; a = n) {
n = a->next();
a->update(now);
}
for (Node* x = nodes_; x != 0; x = x->next_) {
x->update(now);
moveNode(x);
}
/*
* Draw all animations and drawables on display to reflect
* current time.
*/
now_ = now;
for (View* p = views_; p != 0; p = p->next_) {
p->draw();
}
}
void WirelessNetModel::moveNode(Node *n)
{
for (Edge *e = n->links(); e != 0; e = e->next_) {
e->unmark();
placeEdge(e, n);
Node *dst = e->neighbor();
// Should place reverse edges too
Edge *p = dst->find_edge(n->num());
if (p != NULL) {
p->unmark();
placeEdge(p, dst);
}
}
for (Agent *a = n->agents(); a != NULL; a = a->next()) {
a->mark(0), a->angle(NO_ANGLE);
placeAgent(a, n);
}
}
// we need to place edge using the edge's real angle, instead of the
// given one
void WirelessNetModel::placeEdge(Edge* e, Node* src) const
{
if (e->marked() == 0) {
double hyp, dx, dy;
Node *dst = e->neighbor();
dx=dst->x()-src->x();
dy=dst->y()-src->y();
hyp=sqrt(dx*dx + dy*dy);
// e->setAngle(atan2(dy,dx));
double x0 = src->x() + src->size() * (dx/hyp) * .75;
double y0 = src->y() + src->size() * (dy/hyp) * .75;
double x1 = dst->x() - dst->size() * (dx/hyp) * .75;
double y1 = dst->y() - dst->size() * (dy/hyp) * .75;
e->place(x0, y0, x1, y1);
/* Place the queue here too. */
EdgeHashNode *h = lookupEdgeHashNode(e->src(), e->dst());
if (h != 0) {
if (h->queue != 0)
h->queue->place(e->size(), e->x0(), e->y0());
}
e->mark();
}
}
//----------------------------------------------------------------------
// void
// WirelessNetModel::handle(const TraceEvent& e, double now, int direction)
// - packet handling stuff. use new packet
// - Given a trace event parses the event type and adds wireless
// extensions
//----------------------------------------------------------------------
void
WirelessNetModel::handle(const TraceEvent& e, double now, int direction) {
EdgeHashNode *ehn;
Edge* newEdge ;
Node *src, *dst, * n;
View * v;
switch (e.tt) {
case 'a': // Agent
NetModel::handle(e, now, direction);
// recalculate bounding box so that all agents will
// be within view
for (v = views_; v != 0; v = v->next_) {
v->redrawModel();
}
break;
case 'n': // Node
NetModel::handle(e, now, direction);
// no need to reposition node if the node event
// is only for color change or label change
if ((strncmp(e.ne.node.state, "COLOR", 5) == 0) ||
(strncmp(e.ne.node.state, "DLABEL", 6) == 0)) {
return;
}
// placing the node position
n = lookupNode(e.ne.src);
if (n == 0)
return;
n->place(e.ne.x,e.ne.y);
n->placeorig(e.ne.x,e.ne.y);
n->setstart(now);
n->setend(e.ne.stoptime+now);
n->setvelocity(e.ne.x_vel_, e.ne.y_vel_);
moveNode(n);
break;
case 'd':
case 'r':
src = lookupNode(e.pe.src);
if (!src) {
fprintf(stderr,"node %d is not defined... ", e.pe.src);
break;
}
if (!(dst = lookupNode(e.pe.dst))) {
if (e.pe.dst != -1) { // broadcasting address
fprintf(stderr,"node %d is not defined... ", e.pe.dst);
break;
}
}
// Set node color based upon energy levels
/*
switch (e.pe.pkt.energy) {
case 3:
src->color("green");
break;
case 2:
src->color("yellow");
break;
case 1:
src->color("red");
break;
case 0:
src->color("black");
break;
}
*/
NetModel::handle(e, now, direction);
break;
case 'h':
case '+':
case '_':
if ( !(src= lookupNode(e.pe.src)) ) {
fprintf(stderr, "node %d is not defined... ", e.pe.src);
break;
} else {
src->size(src->nsize());
}
if ( !(dst= lookupNode(e.pe.dst)) ) {
if (e.pe.dst != -1) { //broadcasting address
fprintf(stderr,"node %d is not defined... ", e.pe.dst);
break;
} else {
/*
if (e.pe.pkt.energy == 3) src->color("green");
if (e.pe.pkt.energy == 2) src->color("yellow");
if (e.pe.pkt.energy == 1) src->color("red");
if (e.pe.pkt.energy == 0) src->color("black");
*/
NetModel::handle(e, now, direction);
break;
}
} else {
dst->size(dst->nsize());
}
/*
if (e.pe.pkt.energy == 3) src->color("green");
if (e.pe.pkt.energy == 2) src->color("yellow");
if (e.pe.pkt.energy == 1) src->color("red");
if (e.pe.pkt.energy == 0) src->color("black");
*/
// When a wireless packet is transferred then
// lookup to see if an edge has been created for that destination
ehn = lookupEdgeHashNode(e.pe.src, e.pe.dst);
if (ehn == 0 ) {
// if not then create one dynamically
//double bw = 1000000;
//double delay = 1.0000000000000008e-02;
double bw = 10.0;
double delay = 10.0;
double length = 0;
// why it is 3?
double dsize = 3;
double angle = 8.275783586691418e-313;
newEdge = new Edge(src, dst, dsize, bw, delay, length, angle, 1);
newEdge->init_color("black");
newEdge->visible(0);
enterEdge(newEdge);
newEdge->Animation::insert(&drawables_);
src->add_link(newEdge);
}
NetModel::handle(e, now, direction);
break;
case 'l':
if ((strncmp(e.le.link.state, "in", 2) == 0) ||
(strncmp(e.le.link.state, "out", 3) == 0)) {
// wireless process: dynamic link
if (strncmp(e.le.link.state, "in", 2)==0) {
if (direction==FORWARDS) {
Tcl& tcl = Tcl::instance();
tcl.evalf("%s add_link {%s}", name(), e.image);
} else {
// remove the link
removeLink(e);
}
}
if (strncmp(e.le.link.state, "out", 3)==0) {
if (direction==FORWARDS) {
removeLink(e);
} else {
Tcl& tcl = Tcl::instance();
tcl.evalf("%s add_link {%s}", name(), e.image);
}
}
} else {
NetModel::handle(e, now, direction);
}
break;
default:
NetModel::handle(e, now, direction);
break;
}
}
void WirelessNetModel::addToEdgePool(Edge* e)
{
WEdgeList* p = new WEdgeList;
p->wEdge = e;
p->next = edges_ ;
edges_ = p;
}
Edge* WirelessNetModel::removeFromEdgePool()
{
if (edges_) {
WEdgeList* p = edges_ ;
edges_ = p->next;
Edge* w = p->wEdge ;
delete p ;
return w ;
}
else return (Edge*) 0 ;
}
//----------------------------------------------------------------------
// void
// WirelessNetModel::removeLink(const TraceEvent& e)
//----------------------------------------------------------------------
void WirelessNetModel::removeLink(const TraceEvent& e) {
int src = e.le.src;
int dst = e.le.dst;
EdgeHashNode * h = lookupEdgeHashNode(src, dst);
EdgeHashNode * g = lookupEdgeHashNode(dst, src);
if (h == 0 || g == 0) {
// h,g = 0 or h,g !=0
return;
}
Edge * e1 = h->edge;
Edge * e2 = g->edge;
removeEdge(e1);
removeEdge(e2);
e1->detach();
e2->detach();
Node* srcnode = e1->start();
Node* dstnode = e2->start();
// it is a duplex by default
srcnode->delete_link(e1);
dstnode->delete_link(e2);
delete e1;
delete e2;
}
void WirelessNetModel::removeLink(int src, int dst)
{
EdgeHashNode *h = lookupEdgeHashNode(src, dst);
if (h == 0 ) return;
Edge* e1 = h->edge;
if (e1 == 0) return ;
e1->dec_usage();
if (e1->used() != 0) return;
removeEdge(e1);
e1->detach();
Node* srcnode = e1->start();
srcnode->delete_link(e1);
delete e1;
}
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