82 lines
3.5 KiB
C
82 lines
3.5 KiB
C
/*
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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/*! \file flexran_agent_net_comm.h
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* \brief FlexRAN agent network interface abstraction
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* \autho Xenofon Foukas
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* \date 2016
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* \version 0.1
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*/
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#ifndef FLEXRAN_AGENT_NET_COMM_H_
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#define FLEXRAN_AGENT_NET_COMM_H_
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#include "flexran_agent_defs.h"
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#include "tree.h"
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/*Channel related information used for Tx/Rx of protocol messages*/
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typedef struct flexran_agent_channel_s {
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RB_ENTRY(flexran_agent_channel_s) entry;
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int channel_id;
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void *channel_info;
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/*Callbacks for channel message Tx and Rx*/
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int (*msg_send)(void *data, int size, int priority, void *channel_info);
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int (*msg_recv)(void **data, int *priority, void *channel_info);
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void (*release)(struct flexran_agent_channel_s *channel);
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} flexran_agent_channel_t;
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typedef struct flexran_agent_channel_instance_s{
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RB_HEAD(flexran_agent_channel_map, flexran_agent_channel_s) flexran_agent_head;
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} flexran_agent_channel_instance_t;
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/*Send and receive messages using the channel registered for a specific agent*/
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int flexran_agent_msg_send(mid_t mod_id, agent_id_t agent_id, void *data, int size, int priority);
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int flexran_agent_msg_recv(mid_t mod_id, agent_id_t agent_id, void **data, int *priority);
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/*Register a channel to an agent. Use FLEXRAN_AGENT_MAX to register the
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*same channel to all agents*/
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int flexran_agent_register_channel(mid_t mod_id, flexran_agent_channel_t *channel, agent_id_t agent_id);
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/*Unregister the current channel of an agent. Use FLEXRAN_AGENT_MAX to unregister all channels*/
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void flexran_agent_unregister_channel(mid_t mod_id, agent_id_t agent_id);
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/*Create a new channel. Returns the id of the new channel or negative number otherwise*/
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int flexran_agent_create_channel(void *channel_info,
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int (*msg_send)(void *data, int size, int priority, void *channel_info),
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int (*msg_recv)(void **data, int *priority, void *channel_info),
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void (*release)(flexran_agent_channel_t *channel));
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/*Unregister a channel from all agents and destroy it. Returns 0 in case of success*/
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int flexran_agent_destroy_channel(int channel_id);
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/*Return an agent communication channel based on its id*/
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flexran_agent_channel_t * get_channel(int channel_id);
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/*Should be called before performing any channel operations*/
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err_code_t flexran_agent_init_channel_container(void);
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int flexran_agent_compare_channel(struct flexran_agent_channel_s *a, struct flexran_agent_channel_s *b);
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/* RB_PROTOTYPE is for .h files */
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RB_PROTOTYPE(flexran_agent_channel_map, flexran_agent_channel_s, entry, flexran_agent_compare_channel);
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#endif /*FLEXRAN_AGENT_COMM_H_*/
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