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90 lines
3.5 KiB
C
90 lines
3.5 KiB
C
// SPDX-License-Identifier: GPL-3.0-or-later
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#ifndef NETDATA_STORAGE_NUMBER_H
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#define NETDATA_STORAGE_NUMBER_H 1
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#include "../libnetdata.h"
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#ifdef NETDATA_WITHOUT_LONG_DOUBLE
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#define powl pow
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#define modfl modf
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#define llrintl llrint
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#define roundl round
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#define sqrtl sqrt
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#define copysignl copysign
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#define strtold strtod
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typedef double calculated_number;
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#define CALCULATED_NUMBER_FORMAT "%0.7f"
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#define CALCULATED_NUMBER_FORMAT_ZERO "%0.0f"
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#define CALCULATED_NUMBER_FORMAT_AUTO "%f"
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#define LONG_DOUBLE_MODIFIER "f"
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typedef double LONG_DOUBLE;
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#else // NETDATA_WITHOUT_LONG_DOUBLE
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typedef long double calculated_number;
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#define CALCULATED_NUMBER_FORMAT "%0.7Lf"
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#define CALCULATED_NUMBER_FORMAT_ZERO "%0.0Lf"
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#define CALCULATED_NUMBER_FORMAT_AUTO "%Lf"
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#define LONG_DOUBLE_MODIFIER "Lf"
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typedef long double LONG_DOUBLE;
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#endif // NETDATA_WITHOUT_LONG_DOUBLE
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//typedef long long calculated_number;
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//#define CALCULATED_NUMBER_FORMAT "%lld"
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typedef long long collected_number;
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#define COLLECTED_NUMBER_FORMAT "%lld"
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/*
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typedef long double collected_number;
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#define COLLECTED_NUMBER_FORMAT "%0.7Lf"
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*/
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#define calculated_number_modf(x, y) modfl(x, y)
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#define calculated_number_llrint(x) llrintl(x)
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#define calculated_number_round(x) roundl(x)
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#define calculated_number_fabs(x) fabsl(x)
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#define calculated_number_pow(x, y) powl(x, y)
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#define calculated_number_epsilon (calculated_number)0.0000001
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#define calculated_number_equal(a, b) (calculated_number_fabs((a) - (b)) < calculated_number_epsilon)
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#define calculated_number_isnumber(a) (!(fpclassify(a) & (FP_NAN|FP_INFINITE)))
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typedef uint32_t storage_number;
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#define STORAGE_NUMBER_FORMAT "%u"
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#define SN_EXISTS (1 << 24) // the value exists
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#define SN_EXISTS_RESET (1 << 25) // the value has been overflown
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#define SN_EXISTS_100 (1 << 26) // very large value (multipler is 100 instead of 10)
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// extract the flags
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#define get_storage_number_flags(value) ((((storage_number)(value)) & (1 << 24)) | (((storage_number)(value)) & (1 << 25)) | (((storage_number)(value)) & (1 << 26)))
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#define SN_EMPTY_SLOT 0x00000000
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// checks
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#define does_storage_number_exist(value) ((get_storage_number_flags(value) != 0)?1:0)
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#define did_storage_number_reset(value) ((get_storage_number_flags(value) == SN_EXISTS_RESET)?1:0)
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storage_number pack_storage_number(calculated_number value, uint32_t flags);
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calculated_number unpack_storage_number(storage_number value);
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int print_calculated_number(char *str, calculated_number value);
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// sign div/mul <--- multiplier / divider ---> 10/100 RESET EXISTS VALUE
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#define STORAGE_NUMBER_POSITIVE_MAX_RAW (storage_number)( (0 << 31) | (1 << 30) | (1 << 29) | (1 << 28) | (1<<27) | (1 << 26) | (0 << 25) | (1 << 24) | 0x00ffffff )
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#define STORAGE_NUMBER_POSITIVE_MIN_RAW (storage_number)( (0 << 31) | (0 << 30) | (1 << 29) | (1 << 28) | (1<<27) | (0 << 26) | (0 << 25) | (1 << 24) | 0x00000001 )
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#define STORAGE_NUMBER_NEGATIVE_MAX_RAW (storage_number)( (1 << 31) | (0 << 30) | (1 << 29) | (1 << 28) | (1<<27) | (0 << 26) | (0 << 25) | (1 << 24) | 0x00000001 )
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#define STORAGE_NUMBER_NEGATIVE_MIN_RAW (storage_number)( (1 << 31) | (1 << 30) | (1 << 29) | (1 << 28) | (1<<27) | (1 << 26) | (0 << 25) | (1 << 24) | 0x00ffffff )
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// accepted accuracy loss
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#define ACCURACY_LOSS_ACCEPTED_PERCENT 0.0001
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#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)))))
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#endif /* NETDATA_STORAGE_NUMBER_H */
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