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Commit | Line | Data |
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58db1d6e ACM |
1 | #include "units.h" |
2 | #include <inttypes.h> | |
3caeafce ACM |
3 | #include <limits.h> |
4 | #include <stdlib.h> | |
5 | #include <string.h> | |
58db1d6e ACM |
6 | #include <linux/kernel.h> |
7 | #include <linux/time64.h> | |
8 | ||
3caeafce ACM |
9 | unsigned long parse_tag_value(const char *str, struct parse_tag *tags) |
10 | { | |
11 | struct parse_tag *i = tags; | |
12 | ||
13 | while (i->tag) { | |
14 | char *s = strchr(str, i->tag); | |
15 | ||
16 | if (s) { | |
17 | unsigned long int value; | |
18 | char *endptr; | |
19 | ||
20 | value = strtoul(str, &endptr, 10); | |
21 | if (s != endptr) | |
22 | break; | |
23 | ||
24 | if (value > ULONG_MAX / i->mult) | |
25 | break; | |
26 | value *= i->mult; | |
27 | return value; | |
28 | } | |
29 | i++; | |
30 | } | |
31 | ||
32 | return (unsigned long) -1; | |
33 | } | |
34 | ||
58db1d6e ACM |
35 | unsigned long convert_unit(unsigned long value, char *unit) |
36 | { | |
37 | *unit = ' '; | |
38 | ||
39 | if (value > 1000) { | |
40 | value /= 1000; | |
41 | *unit = 'K'; | |
42 | } | |
43 | ||
44 | if (value > 1000) { | |
45 | value /= 1000; | |
46 | *unit = 'M'; | |
47 | } | |
48 | ||
49 | if (value > 1000) { | |
50 | value /= 1000; | |
51 | *unit = 'G'; | |
52 | } | |
53 | ||
54 | return value; | |
55 | } | |
56 | ||
57 | int unit_number__scnprintf(char *buf, size_t size, u64 n) | |
58 | { | |
59 | char unit[4] = "BKMG"; | |
60 | int i = 0; | |
61 | ||
62 | while (((n / 1024) > 1) && (i < 3)) { | |
63 | n /= 1024; | |
64 | i++; | |
65 | } | |
66 | ||
67 | return scnprintf(buf, size, "%" PRIu64 "%c", n, unit[i]); | |
68 | } |