EvmsAccess.h

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#ifndef EVMS_ACCESS_H
#define EVMS_ACCESS_H

extern "C"
{
#define bool boolean
#include <appAPI.h>
#undef bool
#undef min
#undef max
#undef _
}

#include <list>
#include <ostream>

using std::string;

namespace storage
{

typedef enum { EVMS_UNKNOWN, EVMS_DISK, EVMS_SEGMENT, EVMS_REGION, EVMS_PLUGIN,
               EVMS_CONTAINER, EVMS_VOLUME, EVMS_OBJ } ObjType;

class EvmsAccess;

class EvmsObject
    {
    public:
        EvmsObject() { init(); };
        EvmsObject( object_handle_t id );
        virtual ~EvmsObject();

        ObjType type() const { return typ; };
        const string& name() const { return nam; };
        object_handle_t id() const { return idt; };

        void disownPtr() { own_ptr = false; };
        void output( std::ostream& Stream ) const;
        unsigned long long sizeK() const { return size; };
        bool isDataType() const;
        bool isData() const { return is_data; };
        bool isFreespace() const { return is_freespace; };
        virtual void addRelation( EvmsAccess* Acc ) {};

    protected:
        void init();

        bool own_ptr;
        bool is_data;
        bool is_freespace;
        unsigned long long size;
        ObjType typ;
        object_handle_t idt;
        string nam;
        handle_object_info_t *info_p;
    };

class EvmsDataObject : public EvmsObject
    {
    public:
        EvmsDataObject( EvmsObject *const obj );
        EvmsDataObject( object_handle_t id );
        const EvmsObject * consumedBy() const { return consumed; };
        const EvmsObject * volume() const { return vol; };
        void output( std::ostream& Stream ) const;
        virtual void addRelation( EvmsAccess* Acc );

    protected:
        void init();
        storage_object_info_t* getInfop();

        EvmsObject * consumed;
        EvmsObject * vol;
    };

class EvmsContainerObject : public EvmsObject
    {
    public:
        struct peinfo
            {
            EvmsObject * obj;
            unsigned long long size;
            unsigned long long free;
            string uuid;
            };

        EvmsContainerObject( EvmsObject *const obj );
        EvmsContainerObject( object_handle_t id );
        unsigned long long freeK() const { return free; };
        unsigned long long peSize() const { return pe_size; };
        const std::list<peinfo>& consumes() const { return cons; };
        const std::list<EvmsObject *>& creates() const { return creat; };
        const string& typeName() const { return ctype; };
        void output( std::ostream& Stream ) const;
        virtual void addRelation( EvmsAccess* Acc );
        bool isLvm() const { return lvm; }
        bool isLvm1() const { return lvm1; }

    protected:
        void init();
        storage_container_info_t* getInfop();

        unsigned long long free;
        unsigned long long pe_size;
        string uuid;
        std::list<peinfo> cons;
        std::list<EvmsObject *> creat;
        string ctype;
        bool lvm1;
        bool lvm;
    };

class EvmsVolumeObject : public EvmsObject
    {
    public:
        EvmsVolumeObject( EvmsObject *const obj );
        EvmsVolumeObject( object_handle_t id );
        const EvmsObject * consumedBy() const { return consumed; };
        EvmsObject * consumes() const { return cons; };
        const EvmsObject * assVol() const { return assc; };
        bool native() const { return nat; };
        bool active() const { return act; };
        const string& device() const { return dev; };
        void output( std::ostream& Stream ) const;
        void setConsumedBy( EvmsObject* Obj );
        virtual void addRelation( EvmsAccess* Acc );

    protected:
        void init();
        logical_volume_info_s* getInfop();

        bool nat;
        bool act;
        EvmsObject * consumed;
        EvmsObject * cons;
        EvmsObject * assc;
        string dev;
    };

class EvmsAccess
    {
    public:
        EvmsObject * addObject( object_handle_t id );
        EvmsObject * find( object_handle_t id );
        EvmsAccess();
        ~EvmsAccess();
        void output( std::ostream &Stream ) const;
        void listLibstorage( std::ostream &Stream ) const;
        void listVolumes( std::list<const EvmsVolumeObject*>& l ) const;
        void listContainer(std::list<const EvmsContainerObject*>& l ) const;
        const string& getErrorText() {return Error_C;};
        const string& getCmdLine() {return CmdLine_C;};
        int activate();
        int deleteCo( const string& Container_Cv );
        int extendCo( const string& Container_Cv, const string& PvName_Cv );
        int shrinkCo( const string& Container_Cv, const string& PvName_Cv );
        int createCo( const string& Container_Cv, unsigned long long PeSizeK_lv,
                       bool NewMeta_bv, const std::list<string>& Devices_Cv );
        int createLv( const string& LvName_Cv, const string& Container_Cv,
                      unsigned long long SizeK_lv, unsigned long Stripe_lv,
                      unsigned long long StripeSizeK_lv );
        int changeLvSize( const string& LvName_Cv, const string& Container_Cv,
                          unsigned long long SizeK_lv );
        int deleteLv( const string& LvName_Cv, const string& Container_Cv );
        int createCompatVol( const string& Volume_Cv );

    protected:
        void addObjectRelations();
        void rereadAllObjects();
        plugin_handle_t getLvmPlugin( bool lvm2=false );
        object_handle_t findUsingVolume( object_handle_t id );
        debug_level_t logLevel;
        const EvmsContainerObject* findContainer( const string& name );
        const EvmsDataObject* findRegion( const string& container, 
                                          const string& name );
        const EvmsDataObject* findSegment( const string& name );
        const EvmsVolumeObject* findVolume( const string& name );
        bool endEvmsCommand();
        static int pluginFilterFunction( const char* plugin );

        std::list<EvmsObject*> objects;
        bool EvmsOpen_b;
        string Error_C;
        string CmdLine_C;
    };

extern std::ostream& operator<<( std::ostream &Stream, const ObjType Obj );
extern std::ostream& operator<<( std::ostream &Stream, const EvmsAccess& Obj );
extern std::ostream& operator<<( std::ostream &Stream, const EvmsObject& Obj );
extern std::ostream& operator<<( std::ostream &Stream, const EvmsDataObject& Obj );
extern std::ostream& operator<<( std::ostream &Stream, const EvmsContainerObject& Obj );
extern std::ostream& operator<<( std::ostream &Stream, const EvmsVolumeObject& Obj );

}

#endif

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