Cedric Roux
9456fe584a
This commit introduces X2AP timers (t_reloc_prep, tx2_reloc_overall). You need to set the values in the configuration file. X2AP can be enabled or disabled in the configuration file too (disabled by default). Some deadcode was removed.
81 lines
3.0 KiB
C
81 lines
3.0 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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#ifndef X2AP_IDS_H_
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#define X2AP_IDS_H_
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#include <stdint.h>
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/* maximum number of simultaneous handovers, do not set too high */
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#define X2AP_MAX_IDS 16
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/*
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* state:
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* - when starting handover in source, UE is in state X2ID_STATE_SOURCE_PREPARE
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* - after receiving HO_ack in source, UE is in state X2ID_STATE_SOURCE_OVERALL
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* - in target, UE is in state X2ID_STATE_TARGET
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* The state is used to check timers.
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*/
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typedef enum {
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X2ID_STATE_SOURCE_PREPARE,
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X2ID_STATE_SOURCE_OVERALL,
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X2ID_STATE_TARGET
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} x2id_state_t;
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typedef struct {
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int rnti; /* -1 when free */
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int id_source;
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int id_target;
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/* the target eNB. Real type is x2ap_eNB_data_t * */
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void *target;
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/* state: needed to check timers */
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x2id_state_t state;
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/* timers */
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uint64_t t_reloc_prep_start;
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uint64_t tx2_reloc_overall_start;
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} x2ap_id;
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typedef struct {
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x2ap_id ids[X2AP_MAX_IDS];
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} x2ap_id_manager;
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void x2ap_id_manager_init(x2ap_id_manager *m);
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int x2ap_allocate_new_id(x2ap_id_manager *m);
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void x2ap_release_id(x2ap_id_manager *m, int id);
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int x2ap_find_id(x2ap_id_manager *, int id_source, int id_target);
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int x2ap_find_id_from_id_source(x2ap_id_manager *, int id_source);
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int x2ap_find_id_from_rnti(x2ap_id_manager *, int rnti);
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void x2ap_set_ids(x2ap_id_manager *m, int ue_id, int rnti, int id_source, int id_target);
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void x2ap_id_set_state(x2ap_id_manager *m, int ue_id, x2id_state_t state);
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/* real type of target is x2ap_eNB_data_t * */
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void x2ap_id_set_target(x2ap_id_manager *m, int ue_id, void *target);
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void x2ap_set_reloc_prep_timer(x2ap_id_manager *m, int ue_id, uint64_t time);
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void x2ap_set_reloc_overall_timer(x2ap_id_manager *m, int ue_id, uint64_t time);
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int x2ap_id_get_id_source(x2ap_id_manager *m, int ue_id);
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int x2ap_id_get_id_target(x2ap_id_manager *m, int ue_id);
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int x2ap_id_get_rnti(x2ap_id_manager *m, int ue_id);
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void *x2ap_id_get_target(x2ap_id_manager *m, int ue_id);
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#endif /* X2AP_IDS_H_ */
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