mirror of https://github.com/PentHertz/srsLTE.git
124 lines
4.0 KiB
C++
124 lines
4.0 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_H
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#define SRSRAN_RLC_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/task_scheduler.h"
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#include "srsran/interfaces/ue_pdcp_interfaces.h"
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#include "srsran/interfaces/ue_rlc_interfaces.h"
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#include "srsran/interfaces/ue_rrc_interfaces.h"
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#include "srsran/rlc/rlc_common.h"
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#include "srsran/rlc/rlc_metrics.h"
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namespace srsran {
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/****************************************************************************
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* RLC Layer
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* Ref: 3GPP TS 36.322 v10.0.0
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* Single interface for RLC layer - contains separate RLC entities for
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* each bearer.
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***************************************************************************/
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class rlc : public srsue::rlc_interface_mac, public srsue::rlc_interface_pdcp, public srsue::rlc_interface_rrc
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{
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public:
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rlc(const char* logname);
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virtual ~rlc();
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void init(srsue::pdcp_interface_rlc* pdcp_,
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srsue::rrc_interface_rlc* rrc_,
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srsran::timer_handler* timers_,
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uint32_t lcid_);
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void init(srsue::pdcp_interface_rlc* pdcp_,
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srsue::rrc_interface_rlc* rrc_,
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srsran::timer_handler* timers_,
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uint32_t lcid_,
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bsr_callback_t bsr_callback_);
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void stop();
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void get_metrics(rlc_metrics_t& m, const uint32_t nof_tti);
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// PDCP interface
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void write_sdu(uint32_t lcid, unique_byte_buffer_t sdu);
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void write_sdu_mch(uint32_t lcid, unique_byte_buffer_t sdu);
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bool rb_is_um(uint32_t lcid);
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void discard_sdu(uint32_t lcid, uint32_t discard_sn);
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bool sdu_queue_is_full(uint32_t lcid);
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// MAC interface
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bool has_data_locked(const uint32_t lcid);
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uint32_t get_buffer_state(const uint32_t lcid);
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uint32_t get_total_mch_buffer_state(uint32_t lcid);
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uint32_t read_pdu(uint32_t lcid, uint8_t* payload, uint32_t nof_bytes);
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uint32_t read_pdu_mch(uint32_t lcid, uint8_t* payload, uint32_t nof_bytes);
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int get_increment_sequence_num();
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void write_pdu(uint32_t lcid, uint8_t* payload, uint32_t nof_bytes);
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void write_pdu_bcch_bch(srsran::unique_byte_buffer_t pdu);
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void write_pdu_bcch_dlsch(uint8_t* payload, uint32_t nof_bytes);
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void write_pdu_pcch(srsran::unique_byte_buffer_t pdu);
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void write_pdu_mch(uint32_t lcid, uint8_t* payload, uint32_t nof_bytes);
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// RRC interface
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bool is_suspended(const uint32_t lcid);
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bool has_data(const uint32_t lcid);
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void reestablish();
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void reestablish(uint32_t lcid);
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void reset();
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void empty_queue();
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int add_bearer(uint32_t lcid, const rlc_config_t& cnfg);
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int add_bearer_mrb(uint32_t lcid);
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void del_bearer(uint32_t lcid);
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void del_bearer_mrb(uint32_t lcid);
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void suspend_bearer(uint32_t lcid);
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void resume_bearer(uint32_t lcid);
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void change_lcid(uint32_t old_lcid, uint32_t new_lcid);
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bool has_bearer(uint32_t lcid);
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private:
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void reset_metrics();
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void get_buffer_state(uint32_t lcid, uint32_t& tx_queue, uint32_t& prio_tx_queue);
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srslog::basic_logger& logger;
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byte_buffer_pool* pool = nullptr;
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srsue::pdcp_interface_rlc* pdcp = nullptr;
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srsue::rrc_interface_rlc* rrc = nullptr;
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srsran::timer_handler* timers = nullptr;
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typedef std::map<uint16_t, std::unique_ptr<rlc_common> > rlc_map_t;
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typedef std::pair<uint16_t, std::unique_ptr<rlc_common> > rlc_map_pair_t;
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rlc_map_t rlc_array, rlc_array_mrb;
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pthread_rwlock_t rwlock;
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uint32_t default_lcid = 0;
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bsr_callback_t bsr_callback = nullptr;
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// Timer needed for metrics calculation
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std::chrono::high_resolution_clock::time_point metrics_tp;
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bool valid_lcid(uint32_t lcid);
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bool valid_lcid_mrb(uint32_t lcid);
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void update_bsr(uint32_t lcid);
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void update_bsr_mch(uint32_t lcid);
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};
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void rlc_bearer_metrics_print(const rlc_bearer_metrics_t& metrics);
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} // namespace srsran
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#endif // SRSRAN_RLC_H
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