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/*
* netlink/object.c Generic Cacheable Object
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation version 2.1
* of the License.
*
* Copyright (c) 2003-2008 Thomas Graf <tgraf@suug.ch>
*/
#ifndef NETLINK_OBJECT_H_
#define NETLINK_OBJECT_H_
#include <netlink/netlink.h>
#include <netlink/utils.h>
#include <netlink/object-api.h>
#ifdef __cplusplus
extern "C" {
#endif
#define NL_OBJ_MARK 1
struct nl_cache;
struct nl_object;
struct nl_object_ops;
struct nl_object
{
NLHDR_COMMON
};
#define OBJ_CAST(ptr) ((struct nl_object *) (ptr))
/* General */
extern struct nl_object * nl_object_alloc(struct nl_object_ops *);
extern void nl_object_free(struct nl_object *);
extern struct nl_object * nl_object_clone(struct nl_object *obj);
#ifdef disabled
extern int nl_object_alloc_name(const char *,
struct nl_object **);
extern void nl_object_dump(struct nl_object *,
struct nl_dump_params *);
extern uint32_t nl_object_diff(struct nl_object *,
struct nl_object *);
extern int nl_object_match_filter(struct nl_object *,
struct nl_object *);
extern int nl_object_identical(struct nl_object *,
struct nl_object *);
extern char * nl_object_attrs2str(struct nl_object *,
uint32_t attrs, char *buf,
size_t);
#endif
/**
* Check whether this object is used by multiple users
* @arg obj object to check
* @return true or false
*/
static inline int nl_object_shared(struct nl_object *obj)
{
return obj->ce_refcnt > 1;
}
static inline void nl_object_get(struct nl_object *obj)
{
obj->ce_refcnt++;
}
static inline void nl_object_put(struct nl_object *obj)
{
if (!obj)
return;
obj->ce_refcnt--;
if (obj->ce_refcnt <= 0)
nl_object_free(obj);
}
/**
* @name Marks
* @{
*/
/**
* Add mark to object
* @arg obj Object to mark
*/
static inline void nl_object_mark(struct nl_object *obj)
{
obj->ce_flags |= NL_OBJ_MARK;
}
/**
* Remove mark from object
* @arg obj Object to unmark
*/
static inline void nl_object_unmark(struct nl_object *obj)
{
obj->ce_flags &= ~NL_OBJ_MARK;
}
/**
* Return true if object is marked
* @arg obj Object to check
* @return true if object is marked, otherwise false
*/
static inline int nl_object_is_marked(struct nl_object *obj)
{
return (obj->ce_flags & NL_OBJ_MARK);
}
/** @} */
#ifdef disabled
/**
* Return list of attributes present in an object
* @arg obj an object
* @arg buf destination buffer
* @arg len length of destination buffer
*
* @return destination buffer.
*/
static inline char *nl_object_attr_list(struct nl_object *obj, char *buf, size_t len)
{
return nl_object_attrs2str(obj, obj->ce_mask, buf, len);
}
#endif
/**
* @name Attributes
* @{
*/
static inline int nl_object_get_refcnt(struct nl_object *obj)
{
return obj->ce_refcnt;
}
static inline struct nl_cache *nl_object_get_cache(struct nl_object *obj)
{
return obj->ce_cache;
}
static inline void * nl_object_priv(struct nl_object *obj)
{
return obj;
}
/** @} */
#ifdef __cplusplus
}
#endif
#endif
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