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C++

/**
*
* \section COPYRIGHT
*
* Copyright 2013-2015 Software Radio Systems Limited
*
* \section LICENSE
*
* This file is part of the srsUE library.
*
* srsUE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* srsUE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* A copy of the GNU Affero General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#ifndef PROCBSR_H
#define PROCBSR_H
#include <stdint.h>
#include "srslte/common/log.h"
#include "srslte/interfaces/ue_interfaces.h"
#include "srslte/common/timers.h"
/* Buffer status report procedure */
namespace srsue {
class bsr_proc : public srslte::timer_callback
{
public:
bsr_proc();
void init(rlc_interface_mac *rlc, srslte::log *log_h, mac_interface_rrc::mac_cfg_t *mac_cfg, srslte::timers *timers_db);
void step(uint32_t tti);
void reset();
void setup_lcg(uint32_t lcid, uint32_t new_lcg);
void set_priority(uint32_t lcid, uint32_t priority);
void timer_expired(uint32_t timer_id);
uint32_t get_buffer_state();
typedef enum {
LONG_BSR,
SHORT_BSR,
TRUNC_BSR
} bsr_format_t;
typedef struct {
bsr_format_t format;
uint32_t buff_size[4];
} bsr_t;
bool need_to_send_bsr_on_ul_grant(uint32_t grant_size, bsr_t *bsr);
bool generate_padding_bsr(uint32_t nof_padding_bytes, bsr_t *bsr);
bool need_to_send_sr(uint32_t tti);
bool need_to_reset_sr();
void set_tx_tti(uint32_t tti);
private:
const static int QUEUE_STATUS_PERIOD_MS = 500;
bool reset_sr;
mac_interface_rrc::mac_cfg_t *mac_cfg;
srslte::timers *timers_db;
srslte::log *log_h;
rlc_interface_mac *rlc;
bool initiated;
const static int MAX_LCID = 6;
int lcg[MAX_LCID];
uint32_t last_pending_data[MAX_LCID];
int priorities[MAX_LCID];
uint32_t find_max_priority_lcid();
typedef enum {NONE, REGULAR, PADDING, PERIODIC} triggered_bsr_type_t;
triggered_bsr_type_t triggered_bsr_type;
bool sr_is_sent;
uint32_t last_print;
uint32_t next_tx_tti;
void update_pending_data();
bool check_highest_channel();
bool check_single_channel();
bool generate_bsr(bsr_t *bsr, uint32_t nof_padding_bytes);
char* bsr_type_tostring(triggered_bsr_type_t type);
char* bsr_format_tostring(bsr_format_t format);
};
} // namespace srsue
#endif // PROCBSR_H