LXR iproute2/lib/json_print

   1// SPDX-License-Identifier: GPL-2.0+
   2
   3#include <stdarg.h>
   4#include <stdio.h>
   5#include <math.h>
   6
   7#include "utils.h"
   8#include "json_print.h"
   9
  10char *sprint_size(__u32 sz, char *buf)
  11{
  12        long kilo = 1024;
  13        long mega = kilo * kilo;
  14        size_t len = SPRINT_BSIZE - 1;
  15        double tmp = sz;
  16
  17        if (sz >= mega && fabs(mega * rint(tmp / mega) - sz) < 1024)
  18                snprintf(buf, len, "%gMb", rint(tmp / mega));
  19        else if (sz >= kilo && fabs(kilo * rint(tmp / kilo) - sz) < 16)
  20                snprintf(buf, len, "%gKb", rint(tmp / kilo));
  21        else
  22                snprintf(buf, len, "%ub", sz);
  23
  24        return buf;
  25}
  26
  27int print_color_size(enum output_type type, enum color_attr color,
  28                     const char *key, const char *fmt, __u32 sz)
  29{
  30        SPRINT_BUF(buf);
  31
  32        if (_IS_JSON_CONTEXT(type))
  33                return print_color_uint(type, color, key, "%u", sz);
  34
  35        sprint_size(sz, buf);
  36        return print_color_string(type, color, key, fmt, buf);
  37}
  38