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/*
* Copyright (c) 2014 Nicira, Inc.
*
* 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 OFPROTO_DPIF_RID_H
#define OFPROTO_DPIF_RID_H
#include <stddef.h>
#include <stdint.h>
struct recirc_id_pool;
/*
* Recirculation ID pool.
* ======================
*
* Recirculation ID needs to be unique for each datapath. Recirculation
* ID pool keeps track recirculation ids.
*
* Typically, there is one recirculation ID pool for each backer.
*
* In theory, Recirculation ID can be any uint32_t value, except 0.
* The implementation usually limits it to a smaller range to ease
* debugging.
*
* Thread-safety
* =============
*
* All APIs are thread safe.
*
*/
struct recirc_id_pool *recirc_id_pool_create(void);
void recirc_id_pool_destroy(struct recirc_id_pool *pool);
uint32_t recirc_id_alloc(struct recirc_id_pool *pool);
void recirc_id_free(struct recirc_id_pool *pool, uint32_t recirc_id);
#endif
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