153 lines
4.6 KiB
C
153 lines
4.6 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 enb_agent_net_comm.c
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* \brief enb agent network interface abstraction
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* \author Xenofon Foukas
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* \date 2016
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* \version 0.1
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*/
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#include "proto_agent_net_comm.h"
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#include "common/utils/LOG/log.h"
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proto_agent_channel_t *proto_channel[NUMBER_OF_eNB_MAX][ENB_AGENT_MAX];
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static proto_agent_channel_instance_t channel_instance;
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int proto_agent_channel_id = 0;
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int proto_agent_register_channel(mod_id_t mod_id, proto_agent_channel_t *channel, proto_agent_id_t agent_id) {
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int i;
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if (channel == NULL) {
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return -1;
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}
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if (agent_id == ENB_AGENT_MAX) {
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for (i = 0; i < ENB_AGENT_MAX; i++) {
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proto_channel[mod_id][i] = channel;
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}
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} else {
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proto_channel[mod_id][agent_id] = channel;
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}
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return 0;
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}
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void proto_agent_unregister_channel(mod_id_t mod_id, proto_agent_id_t agent_id) {
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int i;
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if (agent_id == ENB_AGENT_MAX) {
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for (i = 0; i < ENB_AGENT_MAX; i++) {
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proto_channel[mod_id][i] = NULL;
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}
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} else {
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proto_channel[mod_id][agent_id] = NULL;
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}
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}
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int proto_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)(proto_agent_channel_t *channel)) {
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int channel_id = ++proto_agent_channel_id;
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proto_agent_channel_t *channel = (proto_agent_channel_t *) malloc(sizeof(proto_agent_channel_t));
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channel->channel_id = channel_id;
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channel->channel_info = channel_info;
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channel->msg_send = msg_send;
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channel->msg_recv = msg_recv;
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channel->release = release;
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/*element should be a real pointer*/
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RB_INSERT(proto_agent_channel_map, &channel_instance.proto_agent_head, channel);
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LOG_D(PROTO_AGENT, "Created a new channel with id 0x%x\n", channel->channel_id);
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return channel_id;
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}
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int proto_agent_destroy_channel(int channel_id) {
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int i, j;
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/*Check to see if channel exists*/
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struct proto_agent_channel_s *e = NULL;
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struct proto_agent_channel_s search;
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memset(&search, 0, sizeof(struct proto_agent_channel_s));
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e = RB_FIND(proto_agent_channel_map, &channel_instance.proto_agent_head, &search);
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if (e == NULL) {
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return -1;
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}
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/*Unregister the channel from all agents*/
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for (i = 0; i < NUMBER_OF_eNB_MAX; i++) {
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for (j = 0; j < ENB_AGENT_MAX; j++) {
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if (proto_channel[i][j] != NULL) {
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if (proto_channel[i][j]->channel_id == e->channel_id) {
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proto_channel[i][j] = NULL;
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}
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}
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}
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}
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/*Remove the channel from the tree and free memory*/
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RB_REMOVE(proto_agent_channel_map, &channel_instance.proto_agent_head, e);
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e->release(e);
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free(e);
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return 0;
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}
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err_code_t proto_agent_init_channel_container(void) {
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int i, j;
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LOG_D(PROTO_AGENT, "init RB tree for channel container\n");
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RB_INIT(&channel_instance.proto_agent_head);
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for (i = 0; i < NUMBER_OF_eNB_MAX; i++) {
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for (j = 0; j < ENB_AGENT_MAX; j++) {
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proto_channel[i][j] = NULL;
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}
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}
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return 0;
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}
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RB_GENERATE(proto_agent_channel_map,proto_agent_channel_s, entry, proto_agent_compare_channel);
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int proto_agent_compare_channel(struct proto_agent_channel_s *a, struct proto_agent_channel_s *b) {
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if (a->channel_id < b->channel_id) return -1;
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if (a->channel_id > b->channel_id) return 1;
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// equal timers
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return 0;
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}
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proto_agent_channel_t * proto_agent_get_channel(int channel_id) {
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struct proto_agent_channel_s search;
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memset(&search, 0, sizeof(struct proto_agent_channel_s));
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search.channel_id = channel_id;
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return RB_FIND(proto_agent_channel_map, &channel_instance.proto_agent_head, &search);
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}
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