src/shared/clock-util.h

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2 #pragma once
   3
   4 #include <errno.h>
   5 #include <time.h>
   6
   7 typedef enum ClockChangeDirection {
   8         CLOCK_CHANGE_NOOP,
   9         CLOCK_CHANGE_FORWARD,
  10         CLOCK_CHANGE_BACKWARD,
  11         _CLOCK_CHANGE_MAX,
  12         _CLOCK_CHANGE_INVALID = -EINVAL,
  13 } ClockChangeDirection;
  14
  15 int clock_is_localtime(const char* adjtime_path);
  16 int clock_set_timezone(int *ret_minutesdelta);
  17 int clock_reset_timewarp(void);
  18 int clock_get_hwclock(struct tm *tm);
  19 int clock_set_hwclock(const struct tm *tm);
  20 int clock_apply_epoch(ClockChangeDirection *ret_attempted_change);