app_close_blocker.h

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class NOVTABLE app_close_blocker : public service_base
{
public:
        virtual bool query() = 0;

        static bool g_query();

        FB2K_MAKE_SERVICE_INTERFACE_ENTRYPOINT(app_close_blocker);
};

class NOVTABLE app_close_blocking_task {
public:
        virtual void query_task_name(pfc::string_base & out) = 0;

protected:
        app_close_blocking_task() {}
        ~app_close_blocking_task() {}

        PFC_CLASS_NOT_COPYABLE_EX(app_close_blocking_task);
};

class NOVTABLE app_close_blocking_task_manager : public service_base {
public:
        virtual void register_task(app_close_blocking_task * task) = 0;
        virtual void unregister_task(app_close_blocking_task * task) = 0;
        

        FB2K_MAKE_SERVICE_INTERFACE_ENTRYPOINT(app_close_blocking_task_manager);
};

class app_close_blocking_task_impl : public app_close_blocking_task {
public:
        app_close_blocking_task_impl() { try { static_api_ptr_t<app_close_blocking_task_manager>()->register_task(this); } catch(exception_service_not_found) {/*user runs pre-0.9.5.1*/}}
        ~app_close_blocking_task_impl() { try { static_api_ptr_t<app_close_blocking_task_manager>()->unregister_task(this); } catch(exception_service_not_found) {/*user runs pre-0.9.5.1*/}}

        void query_task_name(pfc::string_base & out) { out = "<unnamed task>"; }
};

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