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authorArnaldo Carvalho de Melo <acme@redhat.com>2017-04-19 16:05:56 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2017-04-20 13:22:44 -0300
commit58db1d6e7d5d24afa2d32e916fd6f6b6d240ba93 (patch)
tree06771be58f7f44c42579561029bb811747a9678f /tools/perf/util/units.c
parent9607ad3a63871b074a57ce1facd04a230c38725c (diff)
downloadlinux-58db1d6e7d5d24afa2d32e916fd6f6b6d240ba93.tar.bz2
perf tools: Move units conversion/formatting routines to separate object
Out of util.h, to disentangle it a bit more. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-vpksyj3w5fk9t8s6mxmkajyr@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/units.c')
-rw-r--r--tools/perf/util/units.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/tools/perf/util/units.c b/tools/perf/util/units.c
new file mode 100644
index 000000000000..f6a2a3d117d5
--- /dev/null
+++ b/tools/perf/util/units.c
@@ -0,0 +1,39 @@
+#include "units.h"
+#include <inttypes.h>
+#include <linux/kernel.h>
+#include <linux/time64.h>
+
+unsigned long convert_unit(unsigned long value, char *unit)
+{
+ *unit = ' ';
+
+ if (value > 1000) {
+ value /= 1000;
+ *unit = 'K';
+ }
+
+ if (value > 1000) {
+ value /= 1000;
+ *unit = 'M';
+ }
+
+ if (value > 1000) {
+ value /= 1000;
+ *unit = 'G';
+ }
+
+ return value;
+}
+
+int unit_number__scnprintf(char *buf, size_t size, u64 n)
+{
+ char unit[4] = "BKMG";
+ int i = 0;
+
+ while (((n / 1024) > 1) && (i < 3)) {
+ n /= 1024;
+ i++;
+ }
+
+ return scnprintf(buf, size, "%" PRIu64 "%c", n, unit[i]);
+}