mirror of https://github.com/pvnis/srsRAN_4G.git
Added condvar synchronization to ue itf class. SIB1 test working.
ismagom
10 years ago
parent
bb08b2f04b
commit
736517babb
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/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2014 The srsLTE Developers. See the
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* COPYRIGHT file at the top-level directory of this distribution.
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*
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* \section LICENSE
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*
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* This file is part of the srsLTE library.
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*
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* srsLTE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* srsLTE is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* A copy of the GNU Lesser General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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#include <stdint.h>
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#include "srslte/srslte.h"
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#ifndef TTISYNC_H
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#define TTISYNC_H
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namespace srslte {
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namespace ue {
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/* Interface used for PHY-MAC synchronization (producer-consumer model).
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* The consumer waits while its counter is lower than the producer counter.
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* The PHY is the consumer. The MAC is the producer.
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*/
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class SRSLTE_API tti_sync
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{
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public:
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tti_sync(uint32_t modulus_)
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{
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modulus = modulus_;
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init_counters(0);
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}
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virtual void increase() = 0;
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virtual uint32_t wait() = 0;
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virtual void set_producer_cntr(uint32_t) = 0;
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uint32_t get_producer_cntr() { return producer_cntr; }
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uint32_t get_consumer_cntr() { return consumer_cntr; }
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protected:
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void increase_producer() { producer_cntr = (producer_cntr + 1)%modulus; }
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void increase_consumer() { consumer_cntr = (consumer_cntr + 1)%modulus; }
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bool wait_condition() { return producer_cntr == consumer_cntr; }
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void init_counters(uint32_t val)
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{
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consumer_cntr = val;
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producer_cntr = val;
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}
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uint32_t modulus;
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uint32_t producer_cntr;
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uint32_t consumer_cntr;
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};
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}
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}
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#endif
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@ -0,0 +1,58 @@
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/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2014 The srsLTE Developers. See the
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* COPYRIGHT file at the top-level directory of this distribution.
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*
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* \section LICENSE
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*
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* This file is part of the srsLTE library.
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*
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* srsLTE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* srsLTE is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* A copy of the GNU Lesser General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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#include <pthread.h>
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#include "srslte/ue_itf/tti_sync.h"
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#include "srslte/srslte.h"
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#ifndef TTISYNC_CV_H
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#define TTISYNC_CV_H
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namespace srslte {
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namespace ue {
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/* Implements tti_sync interface with condition variables.
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*/
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class SRSLTE_API tti_sync_cv : public tti_sync
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{
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public:
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tti_sync_cv(uint32_t modulus);
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~tti_sync_cv();
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void increase();
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uint32_t wait();
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void set_producer_cntr(uint32_t producer_cntr);
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private:
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pthread_cond_t cond;
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pthread_mutex_t mutex;
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};
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}
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}
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#endif
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@ -0,0 +1,75 @@
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/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2014 The srsLTE Developers. See the
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* COPYRIGHT file at the top-level directory of this distribution.
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*
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* \section LICENSE
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*
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* This file is part of the srsLTE library.
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*
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* srsLTE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* srsLTE is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* A copy of the GNU Lesser General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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#include <pthread.h>
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#include "srslte/ue_itf/tti_sync_cv.h"
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namespace srslte {
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namespace ue {
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tti_sync_cv::tti_sync_cv(uint32_t modulus): tti_sync(modulus)
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{
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pthread_mutex_init(&mutex, NULL);
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pthread_cond_init(&cond, NULL);
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}
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tti_sync_cv::~tti_sync_cv()
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{
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pthread_cond_destroy(&cond);
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pthread_mutex_destroy(&mutex);
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}
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uint32_t tti_sync_cv::wait()
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{
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pthread_mutex_lock(&mutex);
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while(wait_condition()) {
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pthread_cond_wait(&cond, &mutex);
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}
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uint32_t x = consumer_cntr;
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increase_consumer();
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pthread_mutex_unlock(&mutex);
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return x;
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}
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void tti_sync_cv::set_producer_cntr(uint32_t producer_cntr)
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{
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pthread_mutex_lock(&mutex);
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init_counters(producer_cntr);
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pthread_cond_signal(&cond);
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pthread_mutex_unlock(&mutex);
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}
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void tti_sync_cv::increase()
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{
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pthread_mutex_lock(&mutex);
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increase_producer();
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pthread_cond_signal(&cond);
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pthread_mutex_unlock(&mutex);
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}
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}
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}
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