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C++

/**
*
* \section COPYRIGHT
*
* Copyright 2013-2020 Software Radio Systems Limited
*
* By using this file, you agree to the terms and conditions set
* forth in the LICENSE file which can be found at the top level of
* the distribution.
*
*/
/******************************************************************************
* File: mme.h
* Description: Top-level MME class. Creates and links all
* interfaces and helpers.
*****************************************************************************/
#ifndef SRSEPC_MME_H
#define SRSEPC_MME_H
#include "s1ap.h"
#include "srslte/common/buffer_pool.h"
#include "srslte/common/log.h"
#include "srslte/common/log_filter.h"
#include "srslte/common/threads.h"
#include <cstddef>
namespace srsepc {
typedef struct {
s1ap_args_t s1ap_args;
// diameter_args_t diameter_args;
// gtpc_args_t gtpc_args;
} mme_args_t;
typedef struct {
int fd;
uint64_t imsi;
enum nas_timer_type type;
} mme_timer_t;
class mme : public srslte::thread, public mme_interface_nas
{
public:
static mme* get_instance(void);
static void cleanup(void);
int init(mme_args_t* args,
srslte::log_filter* nas_log,
srslte::log_filter* s1ap_log,
srslte::log_filter* mme_gtpc_log);
void stop();
int get_s1_mme();
void run_thread();
// Timer Methods
virtual bool add_nas_timer(int timer_fd, enum nas_timer_type type, uint64_t imsi);
virtual bool is_nas_timer_running(enum nas_timer_type type, uint64_t imsi);
virtual bool remove_nas_timer(enum nas_timer_type type, uint64_t imsi);
private:
mme();
virtual ~mme();
static mme* m_instance;
s1ap* m_s1ap;
mme_gtpc* m_mme_gtpc;
bool m_running;
srslte::byte_buffer_pool* m_pool;
fd_set m_set;
// Timer map
std::vector<mme_timer_t> timers;
// Timer Methods
void handle_timer_expire(int timer_fd);
// Logs
srslte::log_filter* m_nas_log;
srslte::log_filter* m_s1ap_log;
srslte::log_filter* m_mme_gtpc_log;
};
} // namespace srsepc
#endif // SRSEPC_MME_H