From 709616c713f9471a993ad7d16bce23e8b88ce958 Mon Sep 17 00:00:00 2001 From: Philippe Mathieu-Daudé Date: Mon, 12 Oct 2020 11:57:44 +0200 Subject: util/cutils: Introduce freq_to_str() to display Hertz units Introduce freq_to_str() to convert frequency values in human friendly units using the SI units for Hertz. Suggested-by: Luc Michel Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Alistair Francis Reviewed-by: Luc Michel Message-Id: <20201012095804.3335117-2-f4bug@amsat.org> --- util/cutils.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'util') diff --git a/util/cutils.c b/util/cutils.c index 8da34e04b0..be4e43a9ef 100644 --- a/util/cutils.c +++ b/util/cutils.c @@ -885,6 +885,20 @@ char *size_to_str(uint64_t val) return g_strdup_printf("%0.3g %sB", (double)val / div, suffixes[i]); } +char *freq_to_str(uint64_t freq_hz) +{ + static const char *const suffixes[] = { "", "K", "M", "G", "T", "P", "E" }; + double freq = freq_hz; + size_t idx = 0; + + while (freq >= 1000.0 && idx < ARRAY_SIZE(suffixes)) { + freq /= 1000.0; + idx++; + } + + return g_strdup_printf("%0.3g %sHz", freq, suffixes[idx]); +} + int qemu_pstrcmp0(const char **str1, const char **str2) { return g_strcmp0(*str1, *str2); -- cgit v1.2.3-55-g7522