how to add time bar protection in indicator?

[SatyamGanju]

i have wrote some code for indicators and i wanted to add time bar protection , like indicator will stop working in 1 month or so .. how can i do it ? 

[Marco vd Heijden]

struct MqlDateTime 
  { 
   int year;           // Year 
   int mon;            // Month 
   int day;            // Day 
   int hour;           // Hour 
   int min;            // Minutes 
   int sec;            // Seconds 
   int day_of_week;    // Day of week (0-Sunday, 1-Monday, ... ,6-Saturday) 
   int day_of_year;    // Day number of the year (January 1st is assigned the number value of zero) 
  };

https://www.mql5.com/en/docs/constants/structures/mqldatetime

[SatyamGanju]

Marco vd Heijden:

https://www.mql5.com/en/docs/constants/structures/mqldatetime

i need source code to add time bar protection for indicator , the above one is not helpful