source: trunk/FACT++/dim/src/examples/Markus.cxx

#include <iostream>
#include <dic.hxx>
using namespace std;

class DnsInfo;

class FloatInfo : public virtual DimInfoHandler
{
        DimInfo *fInfo;
        float no_link, *data;
        DnsInfo *m_dns;

protected:
    friend class DnsInfo;
        void addHandler()
        {
                if(!fInfo)
                        fInfo = new DimInfo("SIMPLE_SERVICE", (void *)&no_link,
                                sizeof(no_link), this);
        }
        void removeHandler()
        {
                if(fInfo)
                {
                        delete fInfo;
                        fInfo = 0;
                }
        }
public :
        FloatInfo()
        {
                fInfo = 0; 
                no_link = -1;
        };
        void initialize();
        void infoHandler()
        {
                data = (float *)getInfo()->getData();
                cout << "Received : " << *data << endl;
        }
};

class DnsInfo : public DimInfo
{

        char *data;
        FloatInfo &fInfo;

        void infoHandler()
        {
                data = getString();
                cout << "Received : " << data << endl;
                if(data[0] == '+')
                {
                        fInfo.addHandler();
                }
                else if (data[0] == '-')
                {
                        fInfo.removeHandler();
                }
        }
public :
        DnsInfo(FloatInfo &f) : DimInfo("DIS_DNS/SERVER_LIST","DEAD"),
                fInfo(f) {}
    virtual ~DnsInfo()  {}
};

void FloatInfo::initialize()
{
        m_dns = new DnsInfo(*this);
}

main()
{
        FloatInfo *fInfo;

        fInfo = new FloatInfo();
        fInfo->initialize();

        while(1)
                pause();
}