BtrfsSubvolume.h

/*
 * Copyright (c) [2017-2020] SUSE LLC
 *
 * All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as published
 * by the Free Software Foundation.
 *
 * 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, contact Novell, Inc.
 *
 * To contact Novell about this file by physical or electronic mail, you may
 * find current contact information at www.novell.com.
 */
 
 
#ifndef STORAGE_BTRFS_SUBVOLUME_H
#define STORAGE_BTRFS_SUBVOLUME_H
 
 
#include "storage/Filesystems/Mountable.h"
#include "storage/Devicegraph.h"
 
 
namespace storage
{
 
    class Btrfs;
    class BtrfsQgroup;
 
 
    class BtrfsSubvolume : public Mountable
    {
    public:
 
        static BtrfsSubvolume* create(Devicegraph* devicegraph, const std::string& path);
 
        static BtrfsSubvolume* load(Devicegraph* devicegraph, const xmlNode* node);
 
        long get_id() const;
 
        bool is_top_level() const;
 
        const std::string& get_path() const;
 
        bool is_nocow() const;
 
        void set_nocow(bool nocow);
 
        bool is_default_btrfs_subvolume() const;
 
        void set_default_btrfs_subvolume();
 
        Btrfs* get_btrfs();
 
        const Btrfs* get_btrfs() const;
 
        BtrfsSubvolume* get_top_level_btrfs_subvolume();
 
        const BtrfsSubvolume* get_top_level_btrfs_subvolume() const;
 
        bool has_snapshots() const;
 
        std::vector<BtrfsSubvolume*> get_snapshots();
 
        std::vector<const BtrfsSubvolume*> get_snapshots() const;
 
        bool has_origin() const;
 
        BtrfsSubvolume* get_origin();
 
        const BtrfsSubvolume* get_origin() const;
 
        bool has_btrfs_qgroup() const;
 
        BtrfsQgroup* get_btrfs_qgroup();
 
        const BtrfsQgroup* get_btrfs_qgroup() const;
 
        BtrfsQgroup* create_btrfs_qgroup();
 
        BtrfsSubvolume* create_btrfs_subvolume(const std::string& path);
 
        static bool compare_by_id(const BtrfsSubvolume* lhs, const BtrfsSubvolume* rhs);
 
    public:
 
        class Impl;
 
        Impl& get_impl();
        const Impl& get_impl() const;
 
        virtual BtrfsSubvolume* clone() const override;
 
    protected:
 
        BtrfsSubvolume(Impl* impl);
 
    };
 
 
    bool is_btrfs_subvolume(const Device* device);
 
    BtrfsSubvolume* to_btrfs_subvolume(Device* device);
 
    const BtrfsSubvolume* to_btrfs_subvolume(const Device* device);
 
}
 
#endif