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/*
* Copyright (c) 2016 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @brief a hetrogeneous w.r.t. FIB node type, list of FIB nodes.
* Since we cannot use C pointers, due to memeory reallocs, the next/prev
* are described as an index to an element. Each element contains a pointer
* (key:{type, index}) to a FIB node.
*/
#ifndef __FIB_NODE_LIST_H__
#define __FIB_NODE_LIST_H__
#include <vnet/fib/fib_node.h>
extern fib_node_list_t fib_node_list_create(void);
extern void fib_node_list_destroy(fib_node_list_t *list);
extern u32 fib_node_list_push_front(fib_node_list_t head,
int owner_id,
fib_node_type_t type,
fib_node_index_t index);
extern u32 fib_node_list_push_back(fib_node_list_t head,
int owner_id,
fib_node_type_t type,
fib_node_index_t index);
extern void fib_node_list_remove(fib_node_list_t head,
u32 sibling);
extern void fib_node_list_elt_remove(u32 sibling);
extern int fib_node_list_advance(u32 sibling);
extern int fib_node_list_get_front(fib_node_list_t head,
fib_node_ptr_t *ptr);
extern int fib_node_list_elt_get_next(u32 elt,
fib_node_ptr_t *ptr);
extern u32 fib_node_list_get_size(fib_node_list_t head);
/**
* @brief Callback function invoked during a list walk
*/
typedef int (*fib_node_list_walk_cb_t)(fib_node_ptr_t *owner,
void *args);
extern void fib_node_list_walk(fib_node_list_t head,
fib_node_list_walk_cb_t fn,
void *args);
extern void fib_node_list_memory_show(void);
#endif
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