dwarfinterpret/include/DwarfInterpret.hpp

#pragma once

#include <string>
#include <memory>

#include <dwarfpp/root.hpp>

class DwarfInterpret {
    /** Singleton class holding a Dwarf interpret.
     * Must be first instanciated with the path to the binary being run, with a
     * call to `instanciate`, and can afterwards be accessed with calls to
     * `acquire`.
     */

    public:
        class NotInstanciated: public std::exception {};
        class AlreadyInstanciated: public std::exception {};

        DwarfInterpret(DwarfInterpret const&) = delete;
        void operator=(DwarfInterpret const&) = delete;

        static DwarfInterpret& acquire();
        static DwarfInterpret& instanciate(const std::string& elf_path);

        int get_elf_machine() const { return elf_machine; }

        // FIXME DEBUG vvv
        void dbg_dump_ra();

    private:
        DwarfInterpret(const std::string& elf_path);

    private: // members
        static std::unique_ptr<DwarfInterpret> instance;

        dwarf::core::root_die root_die;
        int elf_machine;

        friend class std::unique_ptr<DwarfInterpret>;
};