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openairinterface5g/openair2/UTIL/ASYNC_IF/ringbuffer_queue.h
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2017-12-09 17:41:06 +01:00

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/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.0 (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.openairinterface.org/?page_id=698
*
* 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.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
/*! \file ringbuffer_queue.h
* \brief Lock-free ringbuffer used for async message passing of agent
* \author Xenofon Foukas
* \date March 2016
* \version 1.0
* \email: x.foukas@sms.ed.ac.uk
* @ingroup _mac
*/
#ifndef RINGBUFFER_QUEUE_H
#define RINGBUFFER_QUEUE_H
#include "liblfds700.h"
typedef struct message_s {
void *data;
int size;
int priority;
} message_t;
typedef struct {
struct lfds700_misc_prng_state ps;
struct lfds700_ringbuffer_element *ringbuffer_array;
struct lfds700_ringbuffer_state ringbuffer_state;
} message_queue_t;
message_queue_t * new_message_queue(int size);
int message_put(message_queue_t *queue, void *data, int size, int priority);
int message_get(message_queue_t *queue, void **data, int *size, int *priority);
void destroy_message_queue(message_queue_t *queue);
#endif /* RINGBUFFER_QUEUE_H */