104 lines
2.9 KiB
C
104 lines
2.9 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 ngap_gNB_ue_context.c
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* \brief ngap UE context management within gNB
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* \author Yoshio INOUE, Masayuki HARADA
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* \date 2020
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* \version 0.1
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* \email: yoshio.inoue@fujitsu.com,masayuki.harada@fujitsu.com (yoshio.inoue%40fujitsu.com%2cmasayuki.harada%40fujitsu.com)
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdint.h>
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#include "tree.h"
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#include "intertask_interface.h"
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#include "ngap_common.h"
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#include "ngap_gNB_defs.h"
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#include "ngap_gNB_ue_context.h"
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int ngap_gNB_compare_gNB_ue_ngap_id(
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struct ngap_gNB_ue_context_s *p1, struct ngap_gNB_ue_context_s *p2)
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{
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if (p1->gNB_ue_ngap_id > p2->gNB_ue_ngap_id) {
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return 1;
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}
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if (p1->gNB_ue_ngap_id < p2->gNB_ue_ngap_id) {
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return -1;
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}
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return 0;
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}
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/* Generate the tree management functions */
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RB_GENERATE(ngap_ue_map, ngap_gNB_ue_context_s, entries,
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ngap_gNB_compare_gNB_ue_ngap_id);
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struct ngap_gNB_ue_context_s *ngap_gNB_allocate_new_UE_context(void)
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{
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struct ngap_gNB_ue_context_s *new_p;
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new_p = malloc(sizeof(struct ngap_gNB_ue_context_s));
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if (new_p == NULL) {
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NGAP_ERROR("Cannot allocate new ue context\n");
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return NULL;
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}
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memset(new_p, 0, sizeof(struct ngap_gNB_ue_context_s));
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return new_p;
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}
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struct ngap_gNB_ue_context_s *ngap_gNB_get_ue_context(
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ngap_gNB_instance_t *instance_p,
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uint32_t gNB_ue_ngap_id)
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{
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ngap_gNB_ue_context_t temp;
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memset(&temp, 0, sizeof(struct ngap_gNB_ue_context_s));
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/* gNB ue ngap id = 32 bits wide */
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temp.gNB_ue_ngap_id = gNB_ue_ngap_id & 0xFFFFFFFF;
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return RB_FIND(ngap_ue_map, &instance_p->ngap_ue_head, &temp);
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}
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void ngap_gNB_free_ue_context(struct ngap_gNB_ue_context_s *ue_context_p)
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{
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if (ue_context_p == NULL) {
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NGAP_ERROR("Trying to free a NULL context\n");
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return;
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}
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/* TODO: check that context is currently not in the tree of known
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* contexts.
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*/
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free(ue_context_p);
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}
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