#ifndef __LUNAIX_TWIMAP_H
#define __LUNAIX_TWIMAP_H

#include <lunaix/types.h>

#define twimap_index(twimap, type) ((type)__ptr((twimap)->index))
#define twimap_data(twimap, type) ((type)__ptr((twimap)->data))

extern struct v_file_ops twimap_file_ops;

#define __TWIMAP_OPS    \
        void (*read)(struct twimap* mapping);   \
        int (*go_next)(struct twimap* mapping); \
        void (*reset)(struct twimap* mapping);

struct twimap;
struct twimap_ops
{
    __TWIMAP_OPS
};

struct twimap
{
    void* index;
    void* buffer;
    void* data;
    size_t size_acc;
    union
    {
        struct twimap_ops ops;
        struct { __TWIMAP_OPS };
    };
    
};

int
twimap_read(struct twimap* map, void* buffer, size_t len, size_t fpos);

void
twimap_printf(struct twimap* mapping, const char* fmt, ...);

int
twimap_memcpy(struct twimap* mapping, const void* src, const size_t len);

int
twimap_memappend(struct twimap* mapping, const void* src, const size_t len);

struct twimap*
twimap_create(void* data);

#endif /* __LUNAIX_TWIMAP_H */