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-rw-r--r--src/storage_number.c231
1 files changed, 0 insertions, 231 deletions
diff --git a/src/storage_number.c b/src/storage_number.c
deleted file mode 100644
index c7bbaa8d9..000000000
--- a/src/storage_number.c
+++ /dev/null
@@ -1,231 +0,0 @@
-#include "common.h"
-
-storage_number pack_storage_number(calculated_number value, uint32_t 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, 26, 25 flags
- // bit 24 to bit 1 = the value
-
- storage_number r = get_storage_number_flags(flags);
- if(!value) return r;
-
- int m = 0;
- calculated_number n = value;
-
- // if the value is negative
- // add the sign bit and make it positive
- if(n < 0) {
- r += (1 << 31); // the sign bit 32
- n = -n;
- }
-
- // make its integer part fit in 0x00ffffff
- // by dividing it by 10 up to 7 times
- // and increasing the multiplier
- while(m < 7 && n > (calculated_number)0x00ffffff) {
- n /= 10;
- m++;
- }
-
- if(m) {
- // the value was too big and we divided it
- // so we add a multiplier to unpack it
- r += (1 << 30) + (m << 27); // the multiplier m
-
- if(n > (calculated_number)0x00ffffff) {
- #ifdef NETDATA_INTERNAL_CHECKS
- error("Number " CALCULATED_NUMBER_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 < (calculated_number)0x0019999e) {
- n *= 10;
- m++;
- }
-
- // the value was small enough and we multiplied it
- // so we add a divider to unpack it
- r += (0 << 30) + (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;
-}
-
-calculated_number unpack_storage_number(storage_number value)
-{
- if(!value) return 0;
-
- int sign = 0, exp = 0;
-
- value ^= get_storage_number_flags(value);
-
- if(value & (1 << 31)) {
- sign = 1;
- value ^= 1 << 31;
- }
-
- if(value & (1 << 30)) {
- exp = 1;
- value ^= 1 << 30;
- }
-
- int mul = value >> 27;
- value ^= mul << 27;
-
- calculated_number n = value;
-
- // fprintf(stderr, "UNPACK: %08X, sign = %d, exp = %d, mul = %d, n = " CALCULATED_NUMBER_FORMAT "\n", value, sign, exp, mul, n);
-
- while(mul > 0) {
- if(exp) n *= 10;
- else n /= 10;
- mul--;
- }
-
- if(sign) n = -n;
- return n;
-}
-
-/*
-int print_calculated_number(char *str, calculated_number 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 * (calculated_number)100000);
-#else
- unsigned long long uvalue = value * (calculated_number)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 );
-}
-*/
-
-int print_calculated_number(char *str, calculated_number value) {
- // info("printing number " CALCULATED_NUMBER_FORMAT, value);
- char integral_str[50], fractional_str[50];
-
- char *wstr = str;
-
- if(unlikely(value < 0)) {
- *wstr++ = '-';
- value = -value;
- }
-
- calculated_number integral, fractional;
-
-#ifdef STORAGE_WITH_MATH
- fractional = calculated_number_modf(value, &integral) * 10000000.0;
-#else
- fractional = ((unsigned long long)(value * 10000000ULL) % 10000000ULL);
-#endif
-
- unsigned long long integral_int = (unsigned long long)integral;
- unsigned long long fractional_int = (unsigned long long)calculated_number_llrint(fractional);
- if(unlikely(fractional_int >= 10000000)) {
- integral_int += 1;
- fractional_int -= 10000000;
- }
-
- // info("integral " CALCULATED_NUMBER_FORMAT " (%llu), fractional " CALCULATED_NUMBER_FORMAT " (%llu)", integral, integral_int, fractional, fractional_int);
-
- char *istre;
- if(unlikely(integral_int == 0)) {
- integral_str[0] = '0';
- istre = &integral_str[1];
- }
- else
- // convert the integral part to string (reversed)
- istre = print_number_llu_r_smart(integral_str, integral_int);
-
- // copy reversed the integral string
- istre--;
- while( istre >= integral_str ) *wstr++ = *istre--;
-
- if(likely(fractional_int != 0)) {
- // add a dot
- *wstr++ = '.';
-
- // convert the fractional part to string (reversed)
- char *fstre = print_number_llu_r_smart(fractional_str, fractional_int);
-
- // prepend zeros to reach 7 digits length
- int decimal = 7;
- int len = (int)(fstre - fractional_str);
- while(len < decimal) {
- *wstr++ = '0';
- len++;
- }
-
- char *begin = fractional_str;
- while(begin < fstre && *begin == '0') begin++;
-
- // copy reversed the fractional string
- fstre--;
- while( fstre >= begin ) *wstr++ = *fstre--;
- }
-
- *wstr = '\0';
- // info("printed number '%s'", str);
- return (int)(wstr - str);
-}