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- #ifndef _LINUX_TIME_H
- #define _LINUX_TIME_H
- #include <linux/types.h>
- #ifndef _STRUCT_TIMESPEC
- #define _STRUCT_TIMESPEC
- struct timespec {
- __kernel_time_t tv_sec; /* seconds */
- long tv_nsec; /* nanoseconds */
- };
- #endif
- struct timeval {
- __kernel_time_t tv_sec; /* seconds */
- __kernel_suseconds_t tv_usec; /* microseconds */
- };
- struct timezone {
- int tz_minuteswest; /* minutes west of Greenwich */
- int tz_dsttime; /* type of dst correction */
- };
- /*
- * Names of the interval timers, and structure
- * defining a timer setting:
- */
- #define ITIMER_REAL 0
- #define ITIMER_VIRTUAL 1
- #define ITIMER_PROF 2
- struct itimerspec {
- struct timespec it_interval; /* timer period */
- struct timespec it_value; /* timer expiration */
- };
- struct itimerval {
- struct timeval it_interval; /* timer interval */
- struct timeval it_value; /* current value */
- };
- /*
- * The IDs of the various system clocks (for POSIX.1b interval timers):
- */
- #define CLOCK_REALTIME 0
- #define CLOCK_MONOTONIC 1
- #define CLOCK_PROCESS_CPUTIME_ID 2
- #define CLOCK_THREAD_CPUTIME_ID 3
- #define CLOCK_MONOTONIC_RAW 4
- #define CLOCK_REALTIME_COARSE 5
- #define CLOCK_MONOTONIC_COARSE 6
- #define CLOCK_BOOTTIME 7
- #define CLOCK_REALTIME_ALARM 8
- #define CLOCK_BOOTTIME_ALARM 9
- #define CLOCK_SGI_CYCLE 10 /* Hardware specific */
- #define CLOCK_TAI 11
- #define MAX_CLOCKS 16
- #define CLOCKS_MASK (CLOCK_REALTIME | CLOCK_MONOTONIC)
- #define CLOCKS_MONO CLOCK_MONOTONIC
- /*
- * The various flags for setting POSIX.1b interval timers:
- */
- #define TIMER_ABSTIME 0x01
- #endif /* _LINUX_TIME_H */
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