ntp_client.h

#pragma once
 
/************************************************************************************************
 * @file   ntp_client.h
 *
 * @brief  Header file defining the NTPClient class
 *
 * @date   2025-01-04
 * @author Aryan Kashem
 ************************************************************************************************/
 
/* Standard library Headers */
#include <atomic>
#include <chrono>
#include <ctime>
#include <string>
 
/* Inter-component Headers */
#include <arpa/inet.h>
#include <fcntl.h>
#include <pthread.h>
#include <sys/socket.h>
#include <unistd.h>
 
#include "network_time_protocol.h"
 
/* Intra-component Headers */
 
class NTPClient {
 private:
  static constexpr int NTP_PORT = 123;         
  static constexpr int NTP_SYNC_PERIOD_S = 60; 
  int m_NTPSocket;                     
  std::string m_serverAddress;         
  NTPPacket m_serverResponse;          
  pthread_t m_NTPClientThreadId;       
  std::atomic<bool> m_isSynchronizing; 
 public:
  NTPClient();
 
  void NTPClientProcedure();
 
  void startSynchronization(const std::string &serverAddress);
};