There are two ways for an application to customize the Reliable Multicast Library options:

   - Using the RM_setOption(int OPTION_ID, void *OPTION_VALUE) function
     
      Where:   
        OPTION_ID: indicates what option you want to set. You can found the
                   option list in the rmcast.h header file.
        OPTION_VALUE: the value you want to set the option to
        
      Example:
        
        ...
        
        /* Setting REFRESH_TIMER */
        int refresh_timer=10;
        
        RM_setOption(REFRESH_TIMER,(void *) refresh_timer);
        ...
        
   - Using RM_readConfigFile(char *FILENAME)
   
      This function will tell the Reliable Multicast Library to read the user's
      options from FILENAME. A sample config file is available in this 
      directory, where you will find the list of options and their default values.
      
      Example:
      
      /* Read the config file from /etc/rmcast.config */
      ...
      
      char config_file[50];
      
      strcpy(config_file,"/etc/rmcast.config");
      
      RM_readConfigFile(config_file);
      
      ...
      

NOTE: There is a constant, RM_USE_CURRENT_CONFIG, that can replace functions 
parameters

In those situations, the RM_USE_CURRENT_CONFIG will indicate that the default 
values must be used.(e.g. RM_joinGroup()).

To retrieve the current value of an option from the Reliable Multicast Library
you must use the RM_getOption() function.