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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 DEMUX_H
#define DEMUX_H
#include "srslte/interfaces/ue_interfaces.h"
#include "srslte/common/pdu_queue.h"
#include "srslte/common/log.h"
#include "srslte/common/timers.h"
#include "srslte/common/pdu.h"
/* Logical Channel Demultiplexing and MAC CE dissassemble */
namespace srsue {
class demux : public srslte::pdu_queue::process_callback
{
public:
demux();
void init(phy_interface_mac* phy_h_, rlc_interface_mac *rlc, srslte::log* log_h_, srslte::timers* timers_db_);
bool process_pdus();
uint8_t* request_buffer(uint32_t pid, uint32_t len);
void deallocate(uint8_t* payload_buffer_ptr);
void push_pdu(uint32_t pid, uint8_t *buff, uint32_t nof_bytes);
void push_pdu_temp_crnti(uint8_t *buff, uint32_t nof_bytes);
void set_uecrid_callback(bool (*callback)(void*, uint64_t), void *arg);
bool get_uecrid_successful();
void process_pdu(uint8_t *pdu, uint32_t nof_bytes, uint32_t tstamp);
private:
const static int NOF_HARQ_PID = 8;
const static int MAX_PDU_LEN = 150*1024/8; // ~ 150 Mbps
const static int NOF_BUFFER_PDUS = 64; // Number of PDU buffers per HARQ pid
uint8_t bcch_buffer[1024]; // BCCH PID has a dedicated buffer
bool (*uecrid_callback) (void*, uint64_t);
void *uecrid_callback_arg;
srslte::sch_pdu mac_msg;
srslte::sch_pdu pending_mac_msg;
void process_sch_pdu(srslte::sch_pdu *pdu);
bool process_ce(srslte::sch_subh *subheader);
bool is_uecrid_successful;
phy_interface_mac *phy_h;
srslte::log *log_h;
srslte::timers *timers_db;
rlc_interface_mac *rlc;
// Buffer of PDUs
srslte::pdu_queue pdus;
};
} // namespace srsue
#endif // DEMUX_H