mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
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e8d08775f6
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@15507 3c298f89-4303-0410-b956-a3cf2f4a3e73
145 lines
2.9 KiB
C
145 lines
2.9 KiB
C
/*
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* netlink/object.c Generic Cacheable Object
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation version 2.1
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* of the License.
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*
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* Copyright (c) 2003-2008 Thomas Graf <tgraf@suug.ch>
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*/
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#ifndef NETLINK_OBJECT_H_
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#define NETLINK_OBJECT_H_
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#include <netlink/netlink.h>
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#include <netlink/utils.h>
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#include <netlink/object-api.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define NL_OBJ_MARK 1
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struct nl_cache;
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struct nl_object;
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struct nl_object_ops;
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struct nl_object
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{
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NLHDR_COMMON
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};
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#define OBJ_CAST(ptr) ((struct nl_object *) (ptr))
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/* General */
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extern struct nl_object * nl_object_alloc(struct nl_object_ops *);
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extern int nl_object_alloc_name(const char *,
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struct nl_object **);
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extern void nl_object_free(struct nl_object *);
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extern struct nl_object * nl_object_clone(struct nl_object *obj);
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extern void nl_object_get(struct nl_object *);
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extern void nl_object_put(struct nl_object *);
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extern void nl_object_dump(struct nl_object *,
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struct nl_dump_params *);
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extern int nl_object_identical(struct nl_object *,
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struct nl_object *);
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extern uint32_t nl_object_diff(struct nl_object *,
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struct nl_object *);
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extern int nl_object_match_filter(struct nl_object *,
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struct nl_object *);
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extern char * nl_object_attrs2str(struct nl_object *,
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uint32_t attrs, char *buf,
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size_t);
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/**
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* Check whether this object is used by multiple users
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* @arg obj object to check
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* @return true or false
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*/
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static inline int nl_object_shared(struct nl_object *obj)
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{
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return obj->ce_refcnt > 1;
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}
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/**
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* @name Marks
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* @{
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*/
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/**
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* Add mark to object
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* @arg obj Object to mark
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*/
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static inline void nl_object_mark(struct nl_object *obj)
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{
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obj->ce_flags |= NL_OBJ_MARK;
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}
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/**
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* Remove mark from object
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* @arg obj Object to unmark
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*/
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static inline void nl_object_unmark(struct nl_object *obj)
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{
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obj->ce_flags &= ~NL_OBJ_MARK;
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}
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/**
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* Return true if object is marked
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* @arg obj Object to check
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* @return true if object is marked, otherwise false
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*/
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static inline int nl_object_is_marked(struct nl_object *obj)
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{
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return (obj->ce_flags & NL_OBJ_MARK);
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}
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/** @} */
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/**
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* Return list of attributes present in an object
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* @arg obj an object
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* @arg buf destination buffer
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* @arg len length of destination buffer
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*
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* @return destination buffer.
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*/
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static inline char *nl_object_attr_list(struct nl_object *obj, char *buf, size_t len)
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{
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return nl_object_attrs2str(obj, obj->ce_mask, buf, len);
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}
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/**
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* @name Attributes
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* @{
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*/
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static inline int nl_object_get_refcnt(struct nl_object *obj)
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{
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return obj->ce_refcnt;
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}
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static inline struct nl_cache *nl_object_get_cache(struct nl_object *obj)
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{
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return obj->ce_cache;
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}
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static inline void * nl_object_priv(struct nl_object *obj)
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{
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return obj;
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}
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/** @} */
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#ifdef __cplusplus
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}
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#endif
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#endif
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