src/storage_number.h

   1 #ifndef NETDATA_STORAGE_NUMBER_H
   2 #define NETDATA_STORAGE_NUMBER_H
   3
   4 typedef long double calculated_number;
   5 #define CALCULATED_NUMBER_FORMAT "%0.7Lf"
   6 //typedef long long calculated_number;
   7 //#define CALCULATED_NUMBER_FORMAT "%lld"
   8
   9 typedef long long collected_number;
  10 #define COLLECTED_NUMBER_FORMAT "%lld"
  11
  12 /*
  13 typedef long double collected_number;
  14 #define COLLECTED_NUMBER_FORMAT "%0.7Lf"
  15 */
  16
  17 typedef uint32_t storage_number;
  18 #define STORAGE_NUMBER_FORMAT "%u"
  19
  20 #define SN_NOT_EXISTS       (0x0 << 24)
  21 #define SN_EXISTS           (0x1 << 24)
  22 #define SN_EXISTS_RESET     (0x2 << 24)
  23 #define SN_EXISTS_UNDEF1    (0x3 << 24)
  24 #define SN_EXISTS_UNDEF2    (0x4 << 24)
  25 #define SN_EXISTS_UNDEF3    (0x5 << 24)
  26 #define SN_EXISTS_UNDEF4    (0x6 << 24)
  27
  28 #define SN_FLAGS_MASK       (~(0x6 << 24))
  29
  30 // extract the flags
  31 #define get_storage_number_flags(value) ((((storage_number)value) & (1 << 24)) | (((storage_number)value) & (2 << 24)) | (((storage_number)value) & (4 << 24)))
  32
  33 // checks
  34 #define does_storage_number_exist(value) ((get_storage_number_flags(value) != 0)?1:0)
  35 #define did_storage_number_reset(value)  ((get_storage_number_flags(value) == SN_EXISTS_RESET)?1:0)
  36
  37 storage_number pack_storage_number(calculated_number value, uint32_t flags);
  38 calculated_number unpack_storage_number(storage_number value);
  39
  40 int print_calculated_number(char *str, calculated_number value);
  41
  42 #define STORAGE_NUMBER_POSITIVE_MAX 167772150000000.0
  43 #define STORAGE_NUMBER_POSITIVE_MIN 0.00001
  44 #define STORAGE_NUMBER_NEGATIVE_MAX -0.00001
  45 #define STORAGE_NUMBER_NEGATIVE_MIN -167772150000000.0
  46
  47 // accepted accuracy loss
  48 #define ACCURACY_LOSS 0.0001
  49 #define accuracy_loss(t1, t2) ((t1 == t2 || t1 == 0.0 || t2 == 0.0) ? 0.0 : (100.0 - ((t1 > t2) ? (t2 * 100.0 / t1 ) : (t1 * 100.0 / t2))))
  50
  51 #endif /* NETDATA_STORAGE_NUMBER_H */