/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

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#ifndef _LINUX_TIME_H

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#define _LINUX_TIME_H

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#include <linux/types.h>

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#include <linux/time_types.h>

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#ifndef _STRUCT_TIMESPEC

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#define _STRUCT_TIMESPEC

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struct timespec {

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__kernel_time_t tv_sec; /* seconds */

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long tv_nsec; /* nanoseconds */

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};

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#endif

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struct timeval {

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__kernel_time_t tv_sec; /* seconds */

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__kernel_suseconds_t tv_usec; /* microseconds */

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};

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struct timezone {

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int tz_minuteswest; /* minutes west of Greenwich */

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int tz_dsttime; /* type of dst correction */

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};

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/*

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* Names of the interval timers, and structure

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* defining a timer setting:

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*/

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#define ITIMER_REAL 0

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#define ITIMER_VIRTUAL 1

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#define ITIMER_PROF 2

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struct itimerspec {

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struct timespec it_interval; /* timer period */

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struct timespec it_value; /* timer expiration */

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};

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struct itimerval {

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struct timeval it_interval; /* timer interval */

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struct timeval it_value; /* current value */

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};

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/*

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* The IDs of the various system clocks (for POSIX.1b interval timers):

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*/

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#define CLOCK_REALTIME 0

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#define CLOCK_MONOTONIC 1

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#define CLOCK_PROCESS_CPUTIME_ID 2

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#define CLOCK_THREAD_CPUTIME_ID 3

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#define CLOCK_MONOTONIC_RAW 4

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#define CLOCK_REALTIME_COARSE 5

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#define CLOCK_MONOTONIC_COARSE 6

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#define CLOCK_BOOTTIME 7

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#define CLOCK_REALTIME_ALARM 8

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#define CLOCK_BOOTTIME_ALARM 9

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/*

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* The driver implementing this got removed. The clock ID is kept as a

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* place holder. Do not reuse!

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*/

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#define CLOCK_SGI_CYCLE 10

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#define CLOCK_TAI 11

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#define MAX_CLOCKS 16

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#define CLOCKS_MASK (CLOCK_REALTIME | CLOCK_MONOTONIC)

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#define CLOCKS_MONO CLOCK_MONOTONIC

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/*

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* The various flags for setting POSIX.1b interval timers:

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*/

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#define TIMER_ABSTIME 0x01

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#endif /* _LINUX_TIME_H */

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