base2_friend.h

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#ifndef __BASE2_FRIEND_H__
#define __BASE2_FRIEND_H__

#include "base2.h"

typedef struct base2_private_st_ *base2_private_handle;

typedef struct base2_st_ {
    base2_private_handle private_h;
    uint32_t val1;
} base2_st;

typedef void
(*base2_delete_fn)(base2_handle base2_h);

typedef my_rc_e
(*base2_increase_val1_fn)(base2_handle base2_h);

typedef const char *
(*base2_type_string_fn)(base2_handle base2_h);

typedef my_rc_e
(*base2_string_fn)(base2_handle base2_h, char *buffer, size_t buffer_size);

typedef my_rc_e
(*base2_string_size_fn)(base2_handle base2_h, size_t *buffer_size);

typedef struct base2_vtable_st_ {
    base2_delete_fn delete_fn;
    base2_type_string_fn type_string_fn;
    base2_string_fn string_fn;
    base2_string_size_fn string_size_fn;
    base2_increase_val1_fn increase_val1_fn;
} base2_vtable_st;

/* APIs below are documented in their implementation file */

extern my_rc_e
base2_inherit_vtable(const base2_vtable_st *parent_vtable,
                     base2_vtable_st *child_vtable,
                     bool do_null_check);

extern my_rc_e
base2_set_vtable(base2_handle base2_h, base2_vtable_st *vtable);

extern void
base2_friend_delete(base2_handle base2_h);

extern my_rc_e
base2_init(base2_handle base2_h);

#endif