Merging upstream version 1.45.3+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 0 insertions, 233 deletions

diff --git a/libnetdata/storage_number/storage_number.c b/libnetdata/storage_number/storage_number.c
deleted file mode 100644
index 6468951bd..000000000
--- a/libnetdata/storage_number/storage_number.c
+++ /dev/null
@@ -1,233 +0,0 @@
-// SPDX-License-Identifier: GPL-3.0-or-later
-
-#include "../libnetdata.h"
-
-bool is_system_ieee754_double(void) {
-    static bool logged = false;
-
-    struct {
-        NETDATA_DOUBLE original;
-
-        union {
-            uint64_t i;
-            NETDATA_DOUBLE d;
-        };
-    } tests[] = {
-            { .original = 1.25,                 .i = 0x3FF4000000000000 },
-            { .original = 1.0,                  .i = 0x3FF0000000000000 },
-            { .original = 2.0,                  .i = 0x4000000000000000 },
-            { .original = 4.0,                  .i = 0x4010000000000000 },
-            { .original = 8.8,                  .i = 0x402199999999999A },
-            { .original = 16.16,                .i = 0x403028F5C28F5C29 },
-            { .original = 32.32,                .i = 0x404028F5C28F5C29 },
-            { .original = 64.64,                .i = 0x405028F5C28F5C29 },
-            { .original = 128.128,              .i = 0x406004189374BC6A },
-            { .original = 32768.32768,          .i = 0x40E0000A7C5AC472 },
-            { .original = 65536.65536,          .i = 0x40F0000A7C5AC472 },
-            { .original = -65536.65536,         .i = 0xC0F0000A7C5AC472 },
-            { .original = 65535.65535,          .i = 0x40EFFFF4F8A0902E },
-            { .original = -65535.65535,         .i = 0xC0EFFFF4F8A0902E },
-            { .original = 4.503599627e15,       .i = 0x432FFFFFFFF4B180 },
-            { .original = -4.503599627e15,      .i = 0xC32FFFFFFFF4B180 },
-            { .original = 1.25e25,              .i = 0x4524ADF4B7320335 },
-            { .original = 1.25e307,             .i = 0x7FB1CCF385EBC8A0 },
-            { .original = 1.25e-25,             .i = 0x3AC357C299A88EA7 },
-            { .original = 1.25e-100,            .i = 0x2B317F7D4ED8C33E },
-            { .original = NAN,                  .i = 0x7FF8000000000000 },
-            { .original = -INFINITY,            .i = 0xFFF0000000000000 },
-            { .original = INFINITY,             .i = 0x7FF0000000000000 },
-            { .original = 1.25e-132,            .i = 0x248C6463225AB7EC },
-            { .original = 0.0,                  .i = 0x0000000000000000 },
-            { .original = -0.0,                 .i = 0x8000000000000000 },
-            { .original = DBL_MIN,              .i = 0x0010000000000000 },
-            { .original = DBL_MAX,              .i = 0x7FEFFFFFFFFFFFFF },
-            { .original = -DBL_MIN,             .i = 0x8010000000000000 },
-            { .original = -DBL_MAX,             .i = 0xFFEFFFFFFFFFFFFF },
-    };
-
-    size_t errors = 0;
-    size_t elements = sizeof(tests) / sizeof(tests[0]);
-    for(size_t i = 0; i < elements ; i++) {
-        uint64_t *ptr = (uint64_t *)&tests[i].original;
-
-        if(*ptr != tests[i].i && (tests[i].original == tests[i].d || (isnan(tests[i].original) && isnan(tests[i].d)))) {
-            if(!logged)
-                netdata_log_info("IEEE754: test #%zu, value " NETDATA_DOUBLE_FORMAT_G " is represented in this system as %lX, but it was expected as %lX",
-                     i+1, tests[i].original, *ptr, tests[i].i);
-            errors++;
-        }
-    }
-
-    if(!errors && sizeof(NETDATA_DOUBLE) == sizeof(uint64_t)) {
-        if(!logged)
-            netdata_log_info("IEEE754: system is using IEEE754 DOUBLE PRECISION values");
-
-        logged = true;
-        return true;
-    }
-    else {
-        if(!logged)
-            netdata_log_info("IEEE754: system is NOT compatible with IEEE754 DOUBLE PRECISION values");
-
-        logged = true;
-        return false;
-    }
-}
-
-storage_number pack_storage_number(NETDATA_DOUBLE value, SN_FLAGS flags) {
-    // bit 32 = sign 0:positive, 1:negative
-    // bit 31 = 0:divide, 1:multiply
-    // bit 30, 29, 28 = (multiplier or divider) 0-7 (8 total)
-    // bit 27 SN_EXISTS_100
-    // bit 26 SN_EXISTS_RESET
-    // bit 25 SN_ANOMALY_BIT = 0: anomalous, 1: not anomalous
-    // bit 24 to bit 1 = the value
-
-    if(unlikely(fpclassify(value) == FP_NAN || fpclassify(value) == FP_INFINITE))
-        return SN_EMPTY_SLOT;
-
-    storage_number r = flags & SN_USER_FLAGS;
-
-    if(unlikely(fpclassify(value) == FP_ZERO || fpclassify(value) == FP_SUBNORMAL))
-        return r;
-
-    int m = 0;
-    NETDATA_DOUBLE n = value, factor = 10;
-
-    // if the value is negative
-    // add the sign bit and make it positive
-    if(n < 0) {
-        r += SN_FLAG_NEGATIVE; // the sign bit 32
-        n = -n;
-    }
-
-    if(n / 10000000.0 > 0x00ffffff) {
-        factor = 100;
-        r |= SN_FLAG_NOT_EXISTS_MUL100;
-    }
-
-    // make its integer part fit in 0x00ffffff
-    // by dividing it by 10 up to 7 times
-    // and increasing the multiplier
-    while(m < 7 && n > (NETDATA_DOUBLE)0x00ffffff) {
-        n /= factor;
-        m++;
-    }
-
-    if(m) {
-        // the value was too big, and we divided it
-        // so, we add a multiplier to unpack it
-        r += SN_FLAG_MULTIPLY + (m << 27); // the multiplier m
-
-        if(n > (NETDATA_DOUBLE)0x00ffffff) {
-            #ifdef NETDATA_INTERNAL_CHECKS
-            netdata_log_error("Number " NETDATA_DOUBLE_FORMAT " is too big.", value);
-            #endif
-            r += 0x00ffffff;
-            return r;
-        }
-    }
-    else {
-        // 0x0019999e is the number that can be multiplied
-        // by 10 to give 0x00ffffff
-        // while the value is below 0x0019999e we can
-        // multiply it by 10, up to 7 times, increasing
-        // the multiplier
-        while(m < 7 && n < (NETDATA_DOUBLE)0x0019999e) {
-            n *= 10;
-            m++;
-        }
-
-        if (unlikely(n > (NETDATA_DOUBLE)0x00ffffff)) {
-            n /= 10;
-            m--;
-        }
-        // the value was small enough, and we multiplied it
-        // so, we add a divider to unpack it
-        r += (m << 27); // the divider m
-    }
-
-#ifdef STORAGE_WITH_MATH
-    // without this there are rounding problems
-    // example: 0.9 becomes 0.89
-    r += lrint((double) n);
-#else
-    r += (storage_number)n;
-#endif
-
-    return r;
-}
-
-// Lookup table to make storage number unpacking efficient.
-NETDATA_DOUBLE unpack_storage_number_lut10x[4 * 8];
-
-__attribute__((constructor)) void initialize_lut(void) {
-    // The lookup table is partitioned in 4 subtables based on the
-    // values of the factor and exp bits.
-    for (int i = 0; i < 8; i++) {
-        // factor = 0
-        unpack_storage_number_lut10x[0 * 8 + i] = 1 / pow(10, i);    // exp = 0
-        unpack_storage_number_lut10x[1 * 8 + i] = pow(10, i);        // exp = 1
-
-        // factor = 1
-        unpack_storage_number_lut10x[2 * 8 + i] = 1 / pow(100, i);   // exp = 0
-        unpack_storage_number_lut10x[3 * 8 + i] = pow(100, i);       // exp = 1
-    }
-}
-
-/*
-int print_netdata_double(char *str, NETDATA_DOUBLE value)
-{
-    char *wstr = str;
-
-    int sign = (value < 0) ? 1 : 0;
-    if(sign) value = -value;
-
-#ifdef STORAGE_WITH_MATH
-    // without llrintl() there are rounding problems
-    // for example 0.9 becomes 0.89
-    unsigned long long uvalue = (unsigned long long int) llrintl(value * (NETDATA_DOUBLE)100000);
-#else
-    unsigned long long uvalue = value * (NETDATA_DOUBLE)100000;
-#endif
-
-    wstr = print_number_llu_r_smart(str, uvalue);
-
-    // make sure we have 6 bytes at least
-    while((wstr - str) < 6) *wstr++ = '0';
-
-    // put the sign back
-    if(sign) *wstr++ = '-';
-
-    // reverse it
-    char *begin = str, *end = --wstr, aux;
-    while (end > begin) aux = *end, *end-- = *begin, *begin++ = aux;
-    // wstr--;
-    // strreverse(str, wstr);
-
-    // remove trailing zeros
-    int decimal = 5;
-    while(decimal > 0 && *wstr == '0') {
-        *wstr-- = '\0';
-        decimal--;
-    }
-
-    // terminate it, one position to the right
-    // to let space for a dot
-    wstr[2] = '\0';
-
-    // make space for the dot
-    int i;
-    for(i = 0; i < decimal ;i++) {
-        wstr[1] = wstr[0];
-        wstr--;
-    }
-
-    // put the dot
-    if(wstr[2] == '\0') { wstr[1] = '\0'; decimal--; }
-    else wstr[1] = '.';
-
-    // return the buffer length
-    return (int) ((wstr - str) + 2 + decimal );
-}
-*/