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Diffstat (limited to 'ctrl/facemgr/src/cache.h')
-rw-r--r-- | ctrl/facemgr/src/cache.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/ctrl/facemgr/src/cache.h b/ctrl/facemgr/src/cache.h new file mode 100644 index 000000000..1389ed6ec --- /dev/null +++ b/ctrl/facemgr/src/cache.h @@ -0,0 +1,53 @@ +/* + * Copyright (c) 2017-2019 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. + */ + +/** + * \file state.h + * \brief Face cache + * + * The face cache is an index array of faces that mirror the current state of + * the forwarder in order to filter out redundant events, and perform set + * reconciliation. + */ +#ifndef FACEMGR_CACHE_H +#define FACEMGR_CACHE_H + +#include <stdlib.h> + +#include "face.h" + +/** + * \brief Face cache + */ +typedef struct { + face_t ** faces; /**< array of _pointers_ to faces */ + size_t max_size_log; /**< log2 of allocated size */ + size_t size; /**< effective array size */ +} face_cache_t; + +face_cache_t * face_cache_create(); +void face_cache_free(face_cache_t * face_cache); + +/* a la VPP vector, we never create a face outside of the vector */ +/* problem is that face ptr can get invalid if we manipulate the vector */ +face_t * face_cache_get(face_cache_t * cache_cache); + +face_t * face_cache_add(face_cache_t * face_cache, face_t * face); +face_t * face_cache_remove(face_cache_t * face_cache, face_t * face); +face_t * face_cache_get_by_id(face_cache_t * face_cache, int id); + +void face_cache_dump(face_cache_t * face_cache); + +#endif /* FACEMGR_CACHE_H */ |