Minor refactoring.

include/time_manager.h

@@ -30,22 +30,7 @@ class TimeManager
 #define NTP_MAX_UPDATE_TIME_US (500 * 1000) // 500ms max update time
 
 public:
-    bool ntp_sync_successful(void) const;   // was there a NTP sync once?
-    bool ntp_update_failed_prolonged(void); // indicates if maximum time since last NTP update was too long
-    NtpUpdateState ntp_time_update();
-    struct tm time_info(void);
-    TimeManagerState tm_state(void) const;
-    void increment_time_now_local(void);
-    void log_time() const;                    // log _time_info
-    void log_time(struct tm time_info) const; // log argument time_info
-
-    int tm_min(void);
-    int tm_hour(void);
-    int tm_day(void);
-    int tm_mon(void);
-    int tm_year(void);
-    bool tm_isdst(void); // true if summertime
-
+    // constructor
     TimeManager(const char *tz,
                 const char *ntp_server,
                 uint32 ntp_update_period_s,
@@ -53,9 +38,35 @@ public:
                 uint32 ntp_max_offline_time_s,
                 UDPLogger *logger);
 
+    // ntp methods
+    bool ntp_sync_successful(void) const;   // was there a NTP sync once?
+    bool ntp_update_failed_prolonged(void); // indicates if maximum time since last NTP update was too long
+    NtpUpdateState ntp_time_update();       // main NTP time update method, called in loop
+
+    // ISR method
+    void increment_time_now_local(void); // should be called by timer ISR
+
+    // getter for time values
+    bool tm_isdst(void); // true if summertime
+    int tm_day(void);
+    int tm_hour(void);
+    int tm_min(void);
+    int tm_mon(void);
+    int tm_year(void);
+    struct tm time_info(void);
+
+    // getter
+    TimeManagerState tm_state(void) const; // get current state
+
+    // logging
+    void log_time() const;                    // log _time_info
+    void log_time(struct tm time_info) const; // log argument time_info
+
 private:
-    void _set_up_ntp(void);                             // set up NTP server
-    void _set_up_timer_isr(void);                       // set up timer interrupt
+    // setup methods
+    void _set_up_ntp(void);       // set up NTP server
+    void _set_up_timer_isr(void); // set up timer interrupt
+
     const char *_tz;                                    // timezone
     const char *_ntp_server;                            // ntp server address
     UDPLogger *_logger;                                 // logger instance