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607ca46e97
Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
72 lines
1.5 KiB
C
72 lines
1.5 KiB
C
#ifndef _UAPI_LINUX_TIME_H
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#define _UAPI_LINUX_TIME_H
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#include <linux/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 IDs of various hardware clocks:
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*/
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#define CLOCK_SGI_CYCLE 10
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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 /* _UAPI_LINUX_TIME_H */
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