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

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  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
 52 

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