diff options
Diffstat (limited to 'util/types.c')
| -rw-r--r-- | util/types.c | 43 |
1 files changed, 41 insertions, 2 deletions
diff --git a/util/types.c b/util/types.c index 06bb8d4..18ced77 100644 --- a/util/types.c +++ b/util/types.c @@ -3,10 +3,12 @@ #include <inttypes.h> #include <stdio.h> #include <string.h> +#include <locale.h> #include <ccan/endian/endian.h> #include "types.h" +#include "util/suffix.h" nvme_uint128_t le128_to_cpu(__u8 *data) { @@ -46,14 +48,22 @@ uint64_t int48_to_long(__u8 *data) char *uint128_t_to_string(nvme_uint128_t val) { - static char str[40]; - int idx = 40; + static char str[60]; + int idx = 60; __u64 div, rem; + char *sep = localeconv()->thousands_sep; + int len = sep ? strlen(sep) : 0; + int i; /* terminate at the end, and build up from the ones */ str[--idx] = '\0'; do { + if (len && !((sizeof(str) - idx) % (3 + len))) { + for (i = 0; i < len; i++) + str[--idx] = sep[i]; + } + rem = val.words[0]; div = rem / 10; @@ -78,6 +88,35 @@ char *uint128_t_to_string(nvme_uint128_t val) return str + idx; } +static long double uint128_t_to_double(nvme_uint128_t data) +{ + int i; + long double result = 0; + + for (i = 0; i < sizeof(data.words) / sizeof(*data.words); i++) { + result *= 4294967296; + result += data.words[i]; + } + + return result; +} + +char *uint128_t_to_si_string(nvme_uint128_t val, __u32 bytes_per_unit) +{ + static char str[40]; + long double bytes = uint128_t_to_double(val) * bytes_per_unit; + const char *suffix = suffix_si_get_ld(&bytes); + int n = snprintf(str, sizeof(str), "%.2Lf %sB", bytes, suffix); + + if (n <= 0) + return ""; + + if (n >= sizeof(str)) + str[sizeof(str) - 1] = '\0'; + + return str; +} + const char *util_uuid_to_string(unsigned char uuid[NVME_UUID_LEN]) { static char uuid_str[NVME_UUID_LEN_STRING]; |