libaegis/file_revision.h

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//
//      aegis - project change supervisor
//      Copyright (C) 2004-2006, 2008 Peter Miller
//
//      This program is free software; you can redistribute it and/or modify
//      it under the terms of the GNU General Public License as published by
//      the Free Software Foundation; either version 3 of the License, or
//      (at your option) any later version.
//
//      This program is distributed in the hope that it will be useful,
//      but WITHOUT ANY WARRANTY; without even the implied warranty of
//      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//      GNU General Public License for more details.
//
//      You should have received a copy of the GNU General Public License
//      along with this program. If not, see
//      <http://www.gnu.org/licenses/>.
//

#ifndef LIBAEGIS_FILE_REVISION_H
#define LIBAEGIS_FILE_REVISION_H

#include <common/nstring.h>

class file_revision
{
public:
    ~file_revision();

    file_revision(const nstring &filename, bool need_to_unlink);

    file_revision(const file_revision &);

    file_revision &operator=(const file_revision &);

    nstring get_path() const { return ref->get_path(); }

private:
    class inner
    {
    public:
        ~inner();

        inner(const nstring &filename, bool need_to_unlink);

        nstring get_path() const { return filename; }

        void one_fewer();

        void one_more() { ++reference_count; }

    private:
        long reference_count;

        nstring filename;

        bool need_to_unlink;

        inner();

        inner(const inner &);

        inner &operator=(const inner &);
    };

    inner *ref;

    file_revision();
};

#endif // LIBAEGIS_FILE_REVISION_H