src/storage_number.h

   1 #include <stdint.h>
   2
   3 #ifndef NETDATA_STORAGE_NUMBER_H
   4 #define NETDATA_STORAGE_NUMBER_H
   5
   6 typedef long double calculated_number;
   7 #define CALCULATED_NUMBER_FORMAT "%0.7Lf"
   8 //typedef long long calculated_number;
   9 //#define CALCULATED_NUMBER_FORMAT "%lld"
  10
  11 typedef long long collected_number;
  12 #define COLLECTED_NUMBER_FORMAT "%lld"
  13
  14 /*
  15 typedef long double collected_number;
  16 #define COLLECTED_NUMBER_FORMAT "%0.7Lf"
  17 */
  18
  19 typedef uint32_t storage_number;
  20 #define STORAGE_NUMBER_FORMAT "%u"
  21
  22 #define SN_NOT_EXISTS           (0x0 << 24)
  23 #define SN_EXISTS                       (0x1 << 24)
  24 #define SN_EXISTS_RESET         (0x2 << 24)
  25 #define SN_EXISTS_UNDEF1        (0x3 << 24)
  26 #define SN_EXISTS_UNDEF2        (0x4 << 24)
  27 #define SN_EXISTS_UNDEF3        (0x5 << 24)
  28 #define SN_EXISTS_UNDEF4        (0x6 << 24)
  29
  30 #define SN_FLAGS_MASK           (~(0x6 << 24))
  31
  32 // extract the flags
  33 #define get_storage_number_flags(value) ((((storage_number)value) & (1 << 24)) | (((storage_number)value) & (2 << 24)) | (((storage_number)value) & (4 << 24)))
  34
  35 // checks
  36 #define does_storage_number_exist(value) ((get_storage_number_flags(value) != 0)?1:0)
  37 #define did_storage_number_reset(value)  ((get_storage_number_flags(value) == SN_EXISTS_RESET)?1:0)
  38
  39 storage_number pack_storage_number(calculated_number value, uint32_t flags);
  40 calculated_number unpack_storage_number(storage_number value);
  41
  42 int print_calculated_number(char *str, calculated_number value);
  43
  44 #define STORAGE_NUMBER_POSITIVE_MAX 167772150000000.0
  45 #define STORAGE_NUMBER_POSITIVE_MIN 0.00001
  46 #define STORAGE_NUMBER_NEGATIVE_MAX -0.00001
  47 #define STORAGE_NUMBER_NEGATIVE_MIN -167772150000000.0
  48
  49 // accepted accuracy loss
  50 #define ACCURACY_LOSS 0.0001
  51 #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))))
  52
  53 #endif /* NETDATA_STORAGE_NUMBER_H */