Class ApiResolver

modules/ANativeWindowCreator.h:1215–1303

    };

    struct ApiResolver
    {
        struct ResolverImpl
        {
            void *(*Open)(const char *filename, int flag);
            void *(*Resolve)(void *handle, const char *symbol);
            int (*Close)(void *handle);

            ResolverImpl()
                : Open(dlopen),
                  Resolve(dlsym),
                  Close(dlclose)
            {
            }

            ResolverImpl(decltype(Open) open, decltype(Resolve) resolve, decltype(Close) close)
                : Open(open),
                  Resolve(resolve),
                  Close(close)
            {
            }
        };

        static void Resolve(const ResolverImpl &resolver = {})
        {
            static bool resolved = false;

            if (resolved)
                return;

            std::string systemVersionString(128, 0);
            systemVersionString.resize(__system_property_get("ro.build.version.release", systemVersionString.data()));
            if (!systemVersionString.empty())
                compat::SystemVersion = std::stoi(systemVersionString);

            if (compat::SupportedMinVersion > compat::SystemVersion)
            {
                LogError("[!] Unsupported system version: %zu", compat::SystemVersion);
                return;
            }

            LogInfo("[*] Starting to resolve symbols for Android %zu", compat::SystemVersion);

#ifdef __LP64__
            auto libgui = resolver.Open("/system/lib64/libgui.so", RTLD_LAZY);
            auto libutils = resolver.Open("/system/lib64/libutils.so", RTLD_LAZY);
#else
            auto libgui = resolver.Open("/system/lib/libgui.so", RTLD_LAZY);
            auto libutils = resolver.Open("/system/lib/libutils.so", RTLD_LAZY);
#endif
            if (nullptr == libgui || nullptr == libutils)
            {
                LogError("[!] Failed to open libgui.so or libutils.so");
                throw std::runtime_error("Failed to open libgui.so or libutils.so");
            }

            const auto &[libutilsApis, libguiApis] = ApiTableDescriptor::GetDefaultDescriptors();
            for (const auto &descriptor : libutilsApis)