root/tools/perf/util/time-utils.h

INCLUDED FROM

DEFINITIONS

1. rdclock

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _TIME_UTILS_H_
   3 #define _TIME_UTILS_H_
   4 
   5 #include <stddef.h>
   6 #include <time.h>
   7 #include <linux/types.h>
   8 
   9 struct perf_time_interval {
  10         u64 start, end;
  11 };
  12 
  13 int parse_nsec_time(const char *str, u64 *ptime);
  14 
  15 int perf_time__parse_str(struct perf_time_interval *ptime, const char *ostr);
  16 
  17 int perf_time__percent_parse_str(struct perf_time_interval *ptime_buf, int num,
  18                                  const char *ostr, u64 start, u64 end);
  19 
  20 struct perf_time_interval *perf_time__range_alloc(const char *ostr, int *size);
  21 
  22 bool perf_time__skip_sample(struct perf_time_interval *ptime, u64 timestamp);
  23 
  24 bool perf_time__ranges_skip_sample(struct perf_time_interval *ptime_buf,
  25                                    int num, u64 timestamp);
  26 
  27 struct perf_session;
  28 
  29 int perf_time__parse_for_ranges_reltime(const char *str, struct perf_session *session,
  30                                 struct perf_time_interval **ranges,
  31                                 int *range_size, int *range_num,
  32                                 bool reltime);
  33 
  34 int perf_time__parse_for_ranges(const char *str, struct perf_session *session,
  35                                 struct perf_time_interval **ranges,
  36                                 int *range_size, int *range_num);
  37 
  38 int timestamp__scnprintf_usec(u64 timestamp, char *buf, size_t sz);
  39 int timestamp__scnprintf_nsec(u64 timestamp, char *buf, size_t sz);
  40 
  41 int fetch_current_timestamp(char *buf, size_t sz);
  42 
  43 static inline unsigned long long rdclock(void)
  44 {
  45         struct timespec ts;
  46 
  47         clock_gettime(CLOCK_MONOTONIC, &ts);
  48         return ts.tv_sec * 1000000000ULL + ts.tv_nsec;
  49 }
  50 
  51 #endif