cs_policy.h

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/*
 * Copyright (c) 2017-2020 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.
 */
 
#ifndef __HICN_CS_POLICY_H__
#define __HICN_CS_POLICY_H__
 
#include "../hashtb.h"
 
/*
 * Structure
 */
typedef struct hicn_cs_policy_s
{
  u32 max;
  u32 count;
 
  /* Indexes to hashtable nodes forming CS LRU */
  u32 head;
  u32 tail;
 
} hicn_cs_policy_t;
 
/* Forward declaration */
struct hicn_pit_cs_s;
struct hicn_hash_node_s;
struct hicn_pcs_entry_s;
struct hicn_cs_policy_s;
 
typedef struct hicn_cs_policy_vft_s
{
  void (*hicn_cs_insert) (struct hicn_pit_cs_s *p,
              struct hicn_hash_node_s *node,
              struct hicn_pcs_entry_s *pcs,
              hicn_cs_policy_t *policy);
 
  void (*hicn_cs_update) (struct hicn_pit_cs_s *p,
              struct hicn_hash_node_s *node,
              struct hicn_pcs_entry_s *pcs,
              hicn_cs_policy_t *policy);
 
  void (*hicn_cs_dequeue) (struct hicn_pit_cs_s *p,
               struct hicn_hash_node_s *node,
               struct hicn_pcs_entry_s *pcs,
               hicn_cs_policy_t *policy);
 
  void (*hicn_cs_delete_get) (struct hicn_pit_cs_s *p,
                  hicn_cs_policy_t *policy,
                  struct hicn_hash_node_s **node,
                  struct hicn_pcs_entry_s **pcs,
                  struct hicn_hash_entry_s **hash_entry);
 
  int (*hicn_cs_trim) (struct hicn_pit_cs_s *p, u32 *node_list, int sz,
               hicn_cs_policy_t *policy);
 
  int (*hicn_cs_flush) (vlib_main_t *vm, struct hicn_pit_cs_s *p,
            hicn_cs_policy_t *policy_state);
} hicn_cs_policy_vft_t;
 
#endif /* // __HICN_POLICY_H__ */
 
/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables: eval: (c-set-style "gnu") End:
 */