dlib.hpp

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#pragma once
 
#include "indep/common.hpp"
#include "indep/def.hpp"
#include "indep/macro.hpp"
#include "tres.inl"
#ifdef BY_BUILD_PLATFORM_IS_WINDOWS
#    include <windows.h> // for dll loading
#endif
 
namespace by {
 
#ifdef BY_BUILD_PLATFORM_IS_WINDOWS
    typedef HMODULE dlibHandle;
#else
    typedef void* dlibHandle;
#endif
    template <typename F> using tmayFunc = tres<F, std::string>;
 
    class _nout dlib {
        BY(ME(dlib))
 
    public:
    public:
        dlib();
        dlib(const char* path);
        dlib(const std::string& path);
        dlib(const me& rhs);
        virtual ~dlib();
 
    public:
        me& operator=(const me& rhs);
 
    public:
        const std::string& getPath() const;
        void setPath(const std::string& path);
        void setPath(const std::string* it) BY_SIDE_FUNC(setPath);
 
        tmay<std::string> load();
 
        nbool isLoaded() const;
 
        template <typename F> tmayFunc<F> accessFunc(const std::string& name) { return accessFunc<F>(name.c_str()); }
 
        template <typename F> tmayFunc<F> accessFunc(const std::string* it) BY_SIDE_FUNC(accessFunc<F>);
 
        template <typename F> tmayFunc<F> accessFunc(const nchar* name) {
            auto&& res = _accessFunc(name);
            return res.has() ? tmayFunc<F>((F&) *res) : tmayFunc<F>(res.getErr());
        }
 
        void rel();
 
    private:
        tmayFunc<void*> _accessFunc(const nchar* name);
 
    private:
        std::string _path;
        dlibHandle _handle;
    };
 
    typedef std::vector<dlib> dlibs;
} // namespace by