signaler.hpp

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#pragma once
 
#include "core/common.hpp"
 
namespace by {
 
    struct nerr;
 
    typedef nerr* (*errMaker)(nint);
    typedef void (*sigFunc)(const nerr&);
    typedef std::function<void(const nerr&)> sigHandler;
 
    struct _nout sig {
        BY(ME(sig))
 
    public:
        nbool operator==(const sig& rhs) const;
        nbool operator!=(const sig& rhs) const;
 
    public:
        int code;
        errMaker maker;
    };
 
    class _nout signaler {
        BY(ME(signaler))
 
    private:
        signaler();
 
    public:
        void addSignal(const sigHandler& closure);
        void delSignal(const sigHandler& closure);
        void relSignal();
 
        void onSignal(nint code);
 
        static signaler& get();
 
    private:
        void _setSignal(void (*csignalHandler)(nint));
        const nerr* _getErrBy(nint code) const;
 
    private:
        std::vector<sigHandler> _closures;
    };
} // namespace by