Disk.h

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#ifndef DISK_H
#define DISK_H

#include <list>

#include "y2storage/Container.h"
#include "y2storage/Partition.h"

namespace storage
{

class Storage;
class SystemCmd;
class ProcPart;
class Region;

class Disk : public Container
    {
    friend class Storage;
    friend class DmPartCo;

    struct label_info
        {
        string name;
        bool extended;
        unsigned primary;
        unsigned logical;
        unsigned long long max_size_k;
        };

    public:
        Disk( Storage * const s, const string& Name, unsigned long long Size );
        Disk( Storage * const s, const string& Name, unsigned num, 
              unsigned long long Size, ProcPart& ppart );
        Disk( const Disk& rhs );
        virtual ~Disk();

        unsigned long cylinders() const { return cyl; }
        unsigned heads() const { return head; }
        unsigned sectors() const { return sector; }
        unsigned long numMinor() const { return range; }
        unsigned long cylSizeB() const { return byte_cyl; }
        unsigned maxPrimary() const { return max_primary; }
        unsigned maxLogical() const { return max_logical; }
        const string& labelName() const { return label; }
        const string& udevPath() const { return udev_path; }
        const std::list<string>& udevId() const { return udev_id; }
        void setSlave( bool val=true ) { dmp_slave=val; }
        void setNumMinor( unsigned long val ) { range=val; }
        void addMpAlias( const string& dev ); 
        void clearMpAlias() { mp_alias.clear(); }
        const std::list<string>& mpAlias() const { return mp_alias; }
        const string& sysfsDir() const { return sysfs_dir; }
        unsigned numPartitions() const;
        bool isDasd() const { return( nm.find("dasd")==0 ); }
        bool isLogical( unsigned nr ) const;
        bool detect( ProcPart& ppart );
        static storage::CType const staticType() { return storage::DISK; }
        friend std::ostream& operator<< (std::ostream&, const Disk& );
        void triggerUdevUpdate();

        static bool needP( const string& dev );
        void setUdevData( const string& path, const string& id );
        virtual int createPartition( storage::PartitionType type, long unsigned start,
                                     long unsigned len, string& device,
                                     bool checkRelaxed=false );
        int createPartition( long unsigned len, string& device,
                             bool checkRelaxed=false );
        int createPartition( storage::PartitionType type, string& device );
        virtual int removePartition( unsigned nr );
        virtual int changePartitionId( unsigned nr, unsigned id );
        virtual int initializeDisk( bool ) { return storage::DISK_INIT_NOT_POSSIBLE;}
        bool initializeDisk() const { return init_disk; }
        void resetInitDisk() { init_disk=false; }
        int forgetChangePartitionId( unsigned nr );
        int changePartitionArea( unsigned nr, unsigned long start, 
                                 unsigned long size, bool checkRelaxed=false );
        int nextFreePartition( storage::PartitionType type, unsigned& nr,
                               string& device );
        int destroyPartitionTable( const string& new_label );
        unsigned availablePartNumber( storage::PartitionType type=storage::PRIMARY );
        virtual void getCommitActions( std::list<storage::commitAction*>& l ) const;
        virtual int getToCommit( storage::CommitStage stage, 
                                 std::list<Container*>& col,
                                 std::list<Volume*>& vol );
        virtual int commitChanges( storage::CommitStage stage );
        int commitChanges( storage::CommitStage stage, Volume* vol );
        virtual int resizePartition( Partition* p, unsigned long newCyl );
        int resizeVolume( Volume* v, unsigned long long newSize );
        int removeVolume( Volume* v );
        void getUnusedSpace( std::list<Region>& free, bool all=true, 
                             bool logical=false );
        bool hasExtended() const;
        string setDiskLabelText( bool doing=true ) const;
        unsigned long long cylinderToKb( unsigned long ) const;
        unsigned long kbToCylinder( unsigned long long ) const;
        string getPartName( unsigned nr ) const;
        void getInfo( storage::DiskInfo& info ) const;
        bool equalContent( const Container& rhs ) const;
        void logDifference( const Container& d ) const;
        Disk& operator= ( const Disk& rhs );
        bool FakeDisk() const { return(range==1); }

        static string getPartName( const string& disk, unsigned nr );
        static string getPartName( const string& disk, const string& nr );
        static std::pair<string,unsigned> getDiskPartition( const string& dev );
        static unsigned long long maxSizeLabelK( const string& label );

    protected:

        // iterators over partitions
        // protected typedefs for iterators over partitions
        typedef CastIterator<VIter, Partition *> PartInter;
        typedef CastIterator<CVIter, const Partition *> PartCInter;
        template< class Pred >
            struct PartitionPI { typedef ContainerIter<Pred, PartInter> type; };
        template< class Pred >
            struct PartitionCPI { typedef ContainerIter<Pred, PartCInter> type; };
        typedef CheckFnc<const Partition> CheckFncPartition;
        typedef CheckerIterator< CheckFncPartition, PartitionPI<CheckFncPartition>::type,
                                 PartInter, Partition > PartPIterator;
        typedef CheckerIterator< CheckFncPartition, PartitionCPI<CheckFncPartition>::type,
                                 PartCInter, const Partition > PartCPIterator;
        typedef DerefIterator<PartPIterator,Partition> PartIter;
        typedef IterPair<PartIter> PartPair;

        PartPair partPair( bool (* CheckPart)( const Partition& )=NULL)
            {
            return( PartPair( partBegin( CheckPart ), partEnd( CheckPart ) ));
            }
        PartIter partBegin( bool (* CheckPart)( const Partition& )=NULL)
            {
            IterPair<PartInter> p( (PartInter(begin())), (PartInter(end())) );
            return( PartIter( PartPIterator( p, CheckPart )) );
            }
        PartIter partEnd( bool (* CheckPart)( const Partition& )=NULL)
            {
            IterPair<PartInter> p( (PartInter(begin())), (PartInter(end())) );
            return( PartIter( PartPIterator( p, CheckPart, true )) );
            }

    public:
        typedef DerefIterator<PartCPIterator,const Partition> ConstPartIter;
        typedef IterPair<ConstPartIter> ConstPartPair;
        ConstPartPair partPair( bool (* CheckPart)( const Partition& )=NULL) const
            {
            return( ConstPartPair( partBegin( CheckPart ), partEnd( CheckPart ) ));
            }
        ConstPartIter partBegin( bool (* CheckPart)( const Partition& )=NULL) const
            {
            IterPair<PartCInter> p( (PartCInter(begin())), (PartCInter(end())) );
            return( ConstPartIter( PartCPIterator( p, CheckPart )) );
            }
        ConstPartIter partEnd( bool (* CheckPart)( const Partition& )=NULL) const
            {
            IterPair<PartCInter> p( (PartCInter(begin())), (PartCInter(end())) );
            return( ConstPartIter( PartCPIterator( p, CheckPart, true )) );
            }

    protected:
        Disk( Storage * const s, const string& File );
        virtual bool detectGeometry();
        virtual bool detectPartitions( ProcPart& ppart );
        bool getSysfsInfo( const string& SysFsDir );
        int checkSystemError( const string& cmd_line, const SystemCmd& cmd );
        int execCheckFailed( const string& cmd_line );
        int execCheckFailed( SystemCmd& cmd, const string& cmd_line );
        bool checkPartedOutput( const SystemCmd& cmd, ProcPart& ppart );
        bool scanPartedLine( const string& Line, unsigned& nr,
                             unsigned long& start, unsigned long& csize,
                             storage::PartitionType& type, 
                             unsigned& id, bool& boot );
        bool checkPartedValid( const ProcPart& pp, const string& diskname,
                               std::list<Partition*>& pl, unsigned long& rng );
        bool getPartedValues( Partition *p );
        bool getPartedSectors( const Partition *p, unsigned long long& start,
                               unsigned long long& end );
        const Partition * getPartitionAfter( const Partition * p );
        virtual void print( std::ostream& s ) const { s << *this; }
        virtual Container* getCopy() const { return( new Disk( *this ) ); }
        void getGeometry( const string& line, unsigned long& c, 
                          unsigned& h, unsigned& s );
        virtual void redetectGeometry();
        void changeNumbers( const PartIter& b, const PartIter& e, 
                            unsigned start, int incr );
        int createChecks( storage::PartitionType& type, unsigned long start,
                          unsigned long len, bool checkRelaxed );
        void removePresentPartitions();
        void removeFromMemory();
        void enlargeGpt();

        static bool notDeleted( const Partition&d ) { return( !d.deleted() ); }
        static bool bootSpecial( const Partition&d ) { return( !d.deleted()&&(d.id()==0x41||d.id()==0x06) ); }

        virtual int doCreate( Volume* v );
        virtual int doRemove( Volume* v );
        virtual int doResize( Volume* v );
        virtual int doSetType( Volume* v );
        virtual int doCreateLabel();

        //std::list<Region> getUnusedRegions();
        void logData( const string& Dir );
        bool haveBsdPart( const std::list<Partition*>& pl) const;
        void setLabelData( const string& );

        static string defaultLabel();
        static label_info labels[];
        static string p_disks[];

        unsigned long cyl;
        unsigned head;
        unsigned sector;
        unsigned long new_cyl;
        unsigned new_head;
        unsigned new_sector;
        string label;
        string udev_path;
        std::list<string> udev_id;
        std::list<string> mp_alias;
        string detected_label;
        string system_stderr;
        string logfile_name;
        string sysfs_dir;
        unsigned max_primary;
        bool ext_possible;
        bool init_disk;
        bool iscsi;
        bool dmp_slave;
        bool gpt_enlarge;
        unsigned max_logical;
        unsigned long byte_cyl;
        unsigned long range;
        mutable storage::DiskInfo info;
    };

}

#endif

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