Md.h

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/*
 * Copyright (c) [2004-2010] Novell, Inc.
 *
 * 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 MD_H
#define MD_H

#include "storage/StorageInterface.h"
#include "storage/Volume.h"

namespace storage
{
    class MdCo;
    class EtcMdadm;


class Md : public Volume
    {
        friend class MdPartCo;

    public:
        Md(const MdCo& c, const string& name, const string& device, MdType Type,
           const list<string>& devs, const list<string>& spares);
        Md(const MdCo& c, const string& name, const string& device, SystemInfo& systeminfo);
        Md(const MdCo& c, const Md& v);
        virtual ~Md();

        storage::MdType personality() const { return md_type; }
        void setPersonality( storage::MdType val ); 
        storage::MdParity parity() const { return md_parity; }
        int setParity( storage::MdParity val ); 
        unsigned long chunkSizeK() const { return chunk_k; }
        void setChunkSizeK(unsigned long val) { chunk_k = val; }
        void setMdUuid( const string&val ) { md_uuid=val; }
        bool destroySb() const { return( destrSb ); }
        void setDestroySb( bool val=true ) { destrSb=val; }
        const string& getMdUuid() const { return(md_uuid); }
        list<string> getDevs(bool all = true, bool spare = false) const;
        int checkDevices();
        int addDevice( const string& dev, bool spare=false );
        int removeDevice( const string& dev );
        string createCmd() const;
        static bool matchRegex( const string& dev );
        static unsigned mdMajor();

        void updateData(SystemInfo& systeminfo);
        void setUdevData(SystemInfo& systeminfo);

        virtual list<string> udevId() const { return udev_id; }

        virtual string procName() const { return nm; }
        virtual string sysfsPath() const;

        static bool mdStringNum( const string& name, unsigned& num ); 
        static string mdDevice( unsigned num );

        friend std::ostream& operator<< (std::ostream& s, const Md& m );
        virtual void print( std::ostream& s ) const { s << *this; }
        Text removeText( bool doing ) const;
        Text createText( bool doing ) const;
        Text formatText( bool doing ) const;
        static bool notDeleted( const Md& l ) { return( !l.deleted() ); }
        void changeDeviceName( const string& old, const string& nw );

        void getInfo( storage::MdInfo& info ) const;
        bool equalContent( const Md& rhs ) const;

        void logDifference(std::ostream& log, const Md& rhs) const;

        int getState(MdStateInfo& info) const;

        bool updateEntry(EtcMdadm* mdadm) const;

        virtual list<string> getUsing() const;

    protected:

        void computeSize();

        MdType md_type;
        MdParity md_parity;
        unsigned long chunk_k;
        string md_uuid;
        string md_name;         // line in /dev/md/*
        string sb_ver;
        bool destrSb;
        list<string> devs;
        list<string> spare;

        list<string> udev_id;

        // In case of IMSM and DDF raids there is 'container'.
        bool has_container;
        string parent_container;
        string parent_uuid;
        string parent_md_name;
        string parent_metadata;
        string parent_member;

        static unsigned md_major;

        mutable storage::MdInfo info; // workaround for broken ycp bindings

    private:

        Md(const Md&);                // disallow
        Md& operator=(const Md&);     // disallow

    };

}

#endif

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