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perf units: Move parse_tag_value() to units.[ch] 

Its basically to do units handling, so move to a more appropriately
named object.

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-90ob9vfepui24l8l2makhd9u@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2017-04-26 15:40:31 -03:00
parent 5068b52f73
commit 3caeafce53
4 changed files with 36 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
tools/perf/util/units.c
View File

@ -1,8 +1,37 @@
#include "units.h"
#include <inttypes.h>
#include <limits.h>
#include <stdlib.h>
#include <string.h>
#include <linux/kernel.h>
#include <linux/time64.h>
unsigned long parse_tag_value(const char *str, struct parse_tag *tags)
{
struct parse_tag *i = tags;
while (i->tag) {
char *s = strchr(str, i->tag);
if (s) {
unsigned long int value;
char *endptr;
value = strtoul(str, &endptr, 10);
if (s != endptr)
break;
if (value > ULONG_MAX / i->mult)
break;
value *= i->mult;
return value;
}
i++;
}
return (unsigned long) -1;
}
unsigned long convert_unit(unsigned long value, char *unit)
{
*unit = ' ';

7
tools/perf/util/units.h
View File

@ -4,6 +4,13 @@
#include <stddef.h>
#include <linux/types.h>
struct parse_tag {
char tag;
int mult;
};
unsigned long parse_tag_value(const char *str, struct parse_tag *tags);
unsigned long convert_unit(unsigned long value, char *unit);
int unit_number__scnprintf(char *buf, size_t size, u64 n);

27
tools/perf/util/util.c
View File

@ -334,33 +334,6 @@ int hex2u64(const char *ptr, u64 *long_val)
return p - ptr;
}
unsigned long parse_tag_value(const char *str, struct parse_tag *tags)
{
struct parse_tag *i = tags;
while (i->tag) {
char *s;
s = strchr(str, i->tag);
if (s) {
unsigned long int value;
char *endptr;
value = strtoul(str, &endptr, 10);
if (s != endptr)
break;
if (value > ULONG_MAX / i->mult)
break;
value *= i->mult;
return value;
}
i++;
}
return (unsigned long) -1;
}
int perf_event_paranoid(void)
{
int value;

7
tools/perf/util/util.h
View File

@ -59,13 +59,6 @@ int hex2u64(const char *ptr, u64 *val);
extern unsigned int page_size;
extern int cacheline_size;
struct parse_tag {
char tag;
int mult;
};
unsigned long parse_tag_value(const char *str, struct parse_tag *tags);
bool find_process(const char *name);
int fetch_kernel_version(unsigned int *puint,