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Subject[PATCH 13/17] perf tools: Add perf_config_u64 function
Date
From: Jiri Olsa <jolsa@redhat.com>

Adding perf_config_u64 function to be able to parse
'llong' values out of config file.

Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
tools/perf/util/cache.h | 1 +
tools/perf/util/config.c | 22 ++++++++++++++++++++++
2 files changed, 23 insertions(+)

diff --git a/tools/perf/util/cache.h b/tools/perf/util/cache.h
index 7b176dd..5cf9e1b 100644
--- a/tools/perf/util/cache.h
+++ b/tools/perf/util/cache.h
@@ -22,6 +22,7 @@ typedef int (*config_fn_t)(const char *, const char *, void *);
extern int perf_default_config(const char *, const char *, void *);
extern int perf_config(config_fn_t fn, void *);
extern int perf_config_int(const char *, const char *);
+extern u64 perf_config_u64(const char *, const char *);
extern int perf_config_bool(const char *, const char *);
extern int config_error_nonbool(const char *);
extern const char *perf_config_dirname(const char *, const char *);
diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c
index 24519e1..e68bbe3 100644
--- a/tools/perf/util/config.c
+++ b/tools/perf/util/config.c
@@ -286,6 +286,20 @@ static int parse_unit_factor(const char *end, unsigned long *val)
return 0;
}

+static int perf_parse_llong(const char *value, long long *ret)
+{
+ if (value && *value) {
+ char *end;
+ long val = strtoll(value, &end, 0);
+ unsigned long factor = 1;
+ if (!parse_unit_factor(end, &factor))
+ return 0;
+ *ret = val * factor;
+ return 1;
+ }
+ return 0;
+}
+
static int perf_parse_long(const char *value, long *ret)
{
if (value && *value) {
@@ -307,6 +321,14 @@ static void die_bad_config(const char *name)
die("bad config value for '%s'", name);
}

+u64 perf_config_u64(const char *name, const char *value)
+{
+ long long ret = 0;
+ if (!perf_parse_llong(value, &ret))
+ die_bad_config(name);
+ return (u64) ret;
+}
+
int perf_config_int(const char *name, const char *value)
{
long ret = 0;
--
1.8.3.1


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