mirror of https://github.com/PentHertz/srsLTE.git
120 lines
3.2 KiB
C++
120 lines
3.2 KiB
C++
/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2021 Software Radio Systems Limited
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*
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* By using this file, you agree to the terms and conditions set
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* forth in the LICENSE file which can be found at the top level of
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* the distribution.
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*
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*/
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#ifndef SRSRAN_RLC_AM_NR_H
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#define SRSRAN_RLC_AM_NR_H
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#include "srsran/common/buffer_pool.h"
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#include "srsran/common/common.h"
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#include "srsran/common/timers.h"
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#include "srsran/rlc/rlc_am_base.h"
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#include "srsran/rlc/rlc_am_data_structs.h"
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#include "srsran/rlc/rlc_am_nr_packing.h"
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#include "srsran/upper/byte_buffer_queue.h"
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#include <map>
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#include <mutex>
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#include <pthread.h>
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#include <queue>
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namespace srsran {
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/******************************
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*
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* RLC AM NR entity
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*
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*****************************/
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class rlc_am_nr_tx;
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class rlc_am_nr_rx;
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// Transmitter sub-class
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class rlc_am_nr_tx : public rlc_am::rlc_am_base_tx
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{
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public:
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explicit rlc_am_nr_tx(rlc_am* parent_);
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~rlc_am_nr_tx() = default;
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void set_rx(rlc_am_nr_rx* rx_) { rx = rx_; }
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bool configure(const rlc_config_t& cfg_) final;
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uint32_t read_pdu(uint8_t* payload, uint32_t nof_bytes) final;
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void handle_control_pdu(uint8_t* payload, uint32_t nof_bytes) final;
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void discard_sdu(uint32_t discard_sn) final;
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bool sdu_queue_is_full() final;
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void reestablish() final;
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int write_sdu(unique_byte_buffer_t sdu);
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void empty_queue() final;
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bool has_data() final;
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uint32_t get_buffer_state() final;
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void get_buffer_state(uint32_t& tx_queue, uint32_t& prio_tx_queue);
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void stop() final;
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private:
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rlc_am* parent = nullptr;
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rlc_am_nr_rx* rx = nullptr;
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/****************************************************************************
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* Configurable parameters
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* Ref: 3GPP TS 38.322 v10.0.0 Section 7.4
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***************************************************************************/
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rlc_am_config_t cfg = {};
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/****************************************************************************
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* Tx state variables
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* Ref: 3GPP TS 38.322 v10.0.0 Section 7.1
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***************************************************************************/
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struct rlc_nr_tx_state_t {
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uint32_t tx_next_ack;
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uint32_t tx_next;
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uint32_t poll_sn;
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uint32_t pdu_without_poll;
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uint32_t byte_without_poll;
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} st = {};
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using rlc_amd_tx_pdu_nr = rlc_amd_tx_pdu<rlc_am_nr_pdu_header_t>;
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rlc_ringbuffer_t<rlc_amd_tx_pdu_nr, RLC_AM_WINDOW_SIZE> tx_window;
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};
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// Receiver sub-class
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class rlc_am_nr_rx : public rlc_am::rlc_am_base_rx
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{
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public:
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explicit rlc_am_nr_rx(rlc_am* parent_);
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~rlc_am_nr_rx() = default;
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void set_tx(rlc_am_nr_tx* tx_) { tx = tx_; }
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bool configure(const rlc_config_t& cfg_) final;
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void handle_data_pdu(uint8_t* payload, uint32_t nof_bytes) final;
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void stop();
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void reestablish();
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uint32_t get_sdu_rx_latency_ms();
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uint32_t get_rx_buffered_bytes();
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private:
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rlc_am* parent = nullptr;
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rlc_am_nr_tx* tx = nullptr;
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byte_buffer_pool* pool = nullptr;
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/****************************************************************************
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* Configurable parameters
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* Ref: 3GPP TS 38.322 v10.0.0 Section 7.4
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***************************************************************************/
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rlc_am_config_t cfg = {};
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};
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} // namespace srsran
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#endif // SRSRAN_RLC_AM_NR_H
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