118 lines
3.4 KiB
C
118 lines
3.4 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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#include "shared_buffers.h"
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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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void init_buffers(shared_buffers *s)
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{
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int subframe;
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memset(s, 0, sizeof(*s));
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for (subframe = 0; subframe < 10; subframe++) {
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if (pthread_mutex_init(&s->m_dl[subframe], NULL) != 0 ||
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pthread_cond_init(&s->c_dl[subframe], NULL) != 0 ||
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pthread_mutex_init(&s->m_ul[subframe], NULL) != 0 ||
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pthread_cond_init(&s->c_ul[subframe], NULL) != 0) {
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printf("%s: error initializing mutex/cond\n", __FUNCTION__);
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exit(1);
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}
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}
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/* in FDD the eNB's first transmitted DL subframe is 4 but the device
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* needs to have subframes 1, 2 and 3 ready. Let's pretend there are ready.
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*/
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s->dl_busy[0][1] = 0x3fff;
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s->dl_busy[0][2] = 0x3fff;
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s->dl_busy[0][3] = 0x3fff;
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s->dl_busy[1][1] = 0x3fff;
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s->dl_busy[1][2] = 0x3fff;
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s->dl_busy[1][3] = 0x3fff;
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}
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void lock_dl_buffer(shared_buffers *s, int subframe)
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{
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if (pthread_mutex_lock(&s->m_dl[subframe]) != 0) {
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printf("%s: fatal: lock fails\n", __FUNCTION__);
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exit(1);
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}
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}
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void unlock_dl_buffer(shared_buffers *s, int subframe)
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{
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if (pthread_mutex_unlock(&s->m_dl[subframe]) != 0) {
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printf("%s: fatal: unlock fails\n", __FUNCTION__);
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exit(1);
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}
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}
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void wait_dl_buffer(shared_buffers *s, int subframe)
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{
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if (pthread_cond_wait(&s->c_dl[subframe], &s->m_dl[subframe]) != 0) {
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printf("%s: fatal: cond_wait fails\n", __FUNCTION__);
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exit(1);
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}
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}
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void signal_dl_buffer(shared_buffers *s, int subframe)
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{
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if (pthread_cond_broadcast(&s->c_dl[subframe]) != 0) {
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printf("%s: fatal: cond_broadcast fails\n", __FUNCTION__);
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exit(1);
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}
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}
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void lock_ul_buffer(shared_buffers *s, int subframe)
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{
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if (pthread_mutex_lock(&s->m_ul[subframe]) != 0) {
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printf("%s: fatal: lock fails\n", __FUNCTION__);
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exit(1);
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}
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}
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void unlock_ul_buffer(shared_buffers *s, int subframe)
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{
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if (pthread_mutex_unlock(&s->m_ul[subframe]) != 0) {
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printf("%s: fatal: unlock fails\n", __FUNCTION__);
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exit(1);
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}
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}
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void wait_ul_buffer(shared_buffers *s, int subframe)
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{
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if (pthread_cond_wait(&s->c_ul[subframe], &s->m_ul[subframe]) != 0) {
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printf("%s: fatal: cond_wait fails\n", __FUNCTION__);
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exit(1);
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}
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}
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void signal_ul_buffer(shared_buffers *s, int subframe)
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{
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if (pthread_cond_broadcast(&s->c_ul[subframe]) != 0) {
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printf("%s: fatal: cond_broadcast fails\n", __FUNCTION__);
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exit(1);
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}
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}
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