ak.txt

1)ned file ---- architecture
2)source file(filename.cc) --- functionality of architecture
3)initialization file(.ini)
----------------------------------------------------------
#first.ned
---------------->>>>
simple coin
{
    gates:
        input in;
        output out;
}

network bitcoin
{
    @display("bgb=189,180");
    submodules:
        head: coin;
        tail: coin {
            @display("p=143,141");
        }
    connections:
        head.out --> {  delay = 1s; } --> tail.in;
        head.in <-- {  delay = 1s; } <-- tail.out;
}
---------------------------------------------------------------
#working.cc
----->>>>>>>>>>>>>>
#include<string.h>
#include<omnetpp.h>
using namespace omnetpp;
class coin : public cSimpleModule
{
protected:
    virtual void initialize() override;
    virtual void handleMessage(cMessage *msg) override;
};
Define_Module(coin);
void coin::initialize()
{
    if(strcmp("head",getName())==0){
        cMessage *msg=new cMessage("hello");
        send(msg,"out");
    }
}
void coin::handleMessage(cMessage *msg)
{
    send(msg,"out");
}
---------------------------------------
#omnetpp.ini
--->>>>
Create new omnet file by rightclicking the filename.
and do further steps.............................................