signalfwd.h

Go to the documentation of this file.

#if !defined(INCLUDED_SIGNALFWD_H)
#define INCLUDED_SIGNALFWD_H

class SignalHandler;
template<typename FirstArgument>
class SignalHandler1;
template<typename FirstArgument, typename SecondArgument>
class SignalHandler2;
template<typename FirstArgument, typename SecondArgument, typename ThirdArgument>
class SignalHandler3;

template<typename Context>
class Opaque;

template<typename Type>
class Handle {
    Type* p;
public:
    Handle() : p(0) {
    }
    explicit Handle(Type* p) : p(p) {
    }
    Type* get() const {
        return p;
    }
    bool isNull() const {
        return p == 0;
    }
};

template<typename Handler>
class SignalFwd {
public:
    typedef Handle< Opaque<Handler> > handler_id_type;
};

typedef SignalFwd<SignalHandler>::handler_id_type SignalHandlerId;

#endif