BtrfsQgroup.h

/*
 * Copyright (c) 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_QGROUP_H
#define STORAGE_BTRFS_QGROUP_H
 
 
#include "storage/Devicegraph.h"
#include "storage/Devices/Device.h"
 
 
namespace storage
{
 
    class Btrfs;
 
 
    class BtrfsQgroup : public Device
    {
    public:
 
        using id_t = std::pair<unsigned int, unsigned long long>;
 
        static BtrfsQgroup* create(Devicegraph* devicegraph, const id_t& id);
 
        static BtrfsQgroup* load(Devicegraph* devicegraph, const xmlNode* node);
 
        Btrfs* get_btrfs();
 
        const Btrfs* get_btrfs() const;
 
        id_t get_id() const;
 
        unsigned long long get_referenced() const;
 
        unsigned long long get_exclusive() const;
 
        bool has_referenced_limit() const;
 
        unsigned long long get_referenced_limit() const;
 
        void set_referenced_limit(unsigned long long referenced_limit);
 
        void clear_referenced_limit();
 
        bool has_exclusive_limit() const;
 
        unsigned long long get_exclusive_limit() const;
 
        void set_exclusive_limit(unsigned long long exclusive_limit);
 
        void clear_exclusive_limit();
 
        bool is_assigned(const BtrfsQgroup* btrfs_qgroup) const;
 
        void assign(BtrfsQgroup* btrfs_qgroup);
 
        void unassign(BtrfsQgroup* btrfs_qgroup);
 
        std::vector<BtrfsQgroup*> get_assigned_btrfs_qgroups();
 
        std::vector<const BtrfsQgroup*> get_assigned_btrfs_qgroups() const;
 
    public:
 
        class Impl;
 
        Impl& get_impl();
        const Impl& get_impl() const;
 
        virtual BtrfsQgroup* clone() const override;
 
    protected:
 
        BtrfsQgroup(Impl* impl);
 
    };
 
 
    bool is_btrfs_qgroup(const Device* device);
 
    BtrfsQgroup* to_btrfs_qgroup(Device* device);
 
    const BtrfsQgroup* to_btrfs_qgroup(const Device* device);
 
}
 
#endif