typedef struct
       {
           /* host name, must match the name of target host in Zabbix */
           char    *host;
           /* the item key */
           char    *key;
           /* the item value */
           char    *value;
       }
       zabbix_sender_value_t;
       
       typedef struct
       {
           /* number of total values processed */
           int total;
           /* number of failed values */
           int failed;
           /* time in seconds the server spent processing the sent values */
           double  time_spent;
       }
       zabbix_sender_info_t;