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linux-next/tools/perf/util/time-utils.h
Andi Kleen f8c856cb2c perf time-utils: Add utility function to print time stamps in nanoseconds
Add a utility function to print nanosecond timestamps.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20190305144758.12397-11-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-03-11 11:56:02 -03:00

38 lines
1.1 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _TIME_UTILS_H_
#define _TIME_UTILS_H_
#include <stddef.h>
#include <linux/types.h>
struct perf_time_interval {
u64 start, end;
};
int parse_nsec_time(const char *str, u64 *ptime);
int perf_time__parse_str(struct perf_time_interval *ptime, const char *ostr);
int perf_time__percent_parse_str(struct perf_time_interval *ptime_buf, int num,
const char *ostr, u64 start, u64 end);
struct perf_time_interval *perf_time__range_alloc(const char *ostr, int *size);
bool perf_time__skip_sample(struct perf_time_interval *ptime, u64 timestamp);
bool perf_time__ranges_skip_sample(struct perf_time_interval *ptime_buf,
int num, u64 timestamp);
struct perf_session;
int perf_time__parse_for_ranges(const char *str, struct perf_session *session,
struct perf_time_interval **ranges,
int *range_size, int *range_num);
int timestamp__scnprintf_usec(u64 timestamp, char *buf, size_t sz);
int timestamp__scnprintf_nsec(u64 timestamp, char *buf, size_t sz);
int fetch_current_timestamp(char *buf, size_t sz);
#endif