| #ifndef _LINUX_TIME_H |
| #define _LINUX_TIME_H |
| |
| #include <linux/types.h> |
| |
| #ifdef __KERNEL__ |
| #include <linux/seqlock.h> |
| #endif |
| |
| #ifndef _STRUCT_TIMESPEC |
| #define _STRUCT_TIMESPEC |
| struct timespec { |
| time_t tv_sec; /* seconds */ |
| long tv_nsec; /* nanoseconds */ |
| }; |
| #endif /* _STRUCT_TIMESPEC */ |
| |
| struct timeval { |
| time_t tv_sec; /* seconds */ |
| suseconds_t tv_usec; /* microseconds */ |
| }; |
| |
| struct timezone { |
| int tz_minuteswest; /* minutes west of Greenwich */ |
| int tz_dsttime; /* type of dst correction */ |
| }; |
| |
| #ifdef __KERNEL__ |
| |
| /* Parameters used to convert the timespec values */ |
| #define MSEC_PER_SEC (1000L) |
| #define USEC_PER_SEC (1000000L) |
| #define NSEC_PER_SEC (1000000000L) |
| #define NSEC_PER_USEC (1000L) |
| |
| static __inline__ int timespec_equal(struct timespec *a, struct timespec *b) |
| { |
| return (a->tv_sec == b->tv_sec) && (a->tv_nsec == b->tv_nsec); |
| } |
| |
| extern unsigned long mktime(const unsigned int year, const unsigned int mon, |
| const unsigned int day, const unsigned int hour, |
| const unsigned int min, const unsigned int sec); |
| |
| extern void set_normalized_timespec(struct timespec *ts, time_t sec, long nsec); |
| |
| extern struct timespec xtime; |
| extern struct timespec wall_to_monotonic; |
| extern seqlock_t xtime_lock; |
| |
| static inline unsigned long get_seconds(void) |
| { |
| return xtime.tv_sec; |
| } |
| |
| struct timespec current_kernel_time(void); |
| |
| #define CURRENT_TIME (current_kernel_time()) |
| #define CURRENT_TIME_SEC ((struct timespec) { xtime.tv_sec, 0 }) |
| |
| extern void do_gettimeofday(struct timeval *tv); |
| extern int do_settimeofday(struct timespec *tv); |
| extern int do_sys_settimeofday(struct timespec *tv, struct timezone *tz); |
| extern void clock_was_set(void); // call when ever the clock is set |
| extern int do_posix_clock_monotonic_gettime(struct timespec *tp); |
| extern long do_utimes(char __user * filename, struct timeval * times); |
| struct itimerval; |
| extern int do_setitimer(int which, struct itimerval *value, struct itimerval *ovalue); |
| extern int do_getitimer(int which, struct itimerval *value); |
| extern void getnstimeofday (struct timespec *tv); |
| extern void getnstimestamp(struct timespec *ts); |
| |
| extern struct timespec timespec_trunc(struct timespec t, unsigned gran); |
| |
| #endif /* __KERNEL__ */ |
| |
| #define NFDBITS __NFDBITS |
| |
| #define FD_SETSIZE __FD_SETSIZE |
| #define FD_SET(fd,fdsetp) __FD_SET(fd,fdsetp) |
| #define FD_CLR(fd,fdsetp) __FD_CLR(fd,fdsetp) |
| #define FD_ISSET(fd,fdsetp) __FD_ISSET(fd,fdsetp) |
| #define FD_ZERO(fdsetp) __FD_ZERO(fdsetp) |
| |
| /* |
| * 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 |
| |
| /* |
| * The IDs of various hardware clocks |
| */ |
| #define CLOCK_SGI_CYCLE 10 |
| #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 |