ms_body.hpp

/*
##############################################################################
# file: ms_body.hpp
# 'msparser' toolkit
# Implements a reference counted body (pimpl) idiom
##############################################################################
# COPYRIGHT NOTICE                                                           #
# Copyright 1998-2014 Matrix Science Limited  All Rights Reserved.           #
#                                                                            #
##############################################################################
 * @(#)$Source: parser/inc/ms_body.hpp $
 * @(#)$Revision: f7c430569a82a92eac8833564053b59680ac20a8 | MSPARSER_REL_3_0_0-2024-09-24-0-g93ebaeb4f4 $
 * @(#)$Date: 2021-01-11 13:23:17 +0000 $
##############################################################################
 */
 
#ifndef MS_BODY_HPP
#define MS_BODY_HPP
 
 
namespace matrix_science
{
 
    //=========================================================================
    class MS_MASCOTRESFILE_API ms_body
    {
        protected:
            ms_body() : refcount_(0) {}
            virtual ~ms_body() {}
            ms_body(const ms_body &) : refcount_(0) {}
#ifndef SWIG
            void operator=(const ms_body &) {}
#endif
        private:
            void addRef();
            bool release(); // true means final release (refcount now zero)
            long refcount_;
        friend class ms_handle;
    };
 
    class MS_MASCOTRESFILE_API ms_handle
    {
        protected:
            explicit ms_handle(ms_body * bodyPtr);
            explicit ms_handle(const ms_handle & copy);
            virtual ~ms_handle() 
            {
                attachBody(0);
            };
#ifndef SWIG
            const ms_handle & operator=(const ms_handle & copy);
            ms_body * body();
            const ms_body * body() const;
#endif
            void attachBody(ms_body * newBody);
        private:
            ms_body * body_;
    };
     // end of tools_group
    //=========================================================================
 
} // namespace matrix_science
 
#endif // MS_BODY_HPP
 
/*------------------------------- End of File -------------------------------*/