#ifndef _LINUX_TIME_H
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#ifndef _LINUX_TIME_H
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#define _LINUX_TIME_H
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#define _LINUX_TIME_H
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#include <asm/param.h>
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#include <asm/param.h>
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#include <linux/types.h>
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#include <linux/types.h>
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#ifndef _STRUCT_TIMESPEC
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#ifndef _STRUCT_TIMESPEC
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#define _STRUCT_TIMESPEC
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#define _STRUCT_TIMESPEC
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struct timespec {
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struct timespec {
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time_t tv_sec; /* seconds */
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time_t tv_sec; /* seconds */
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long tv_nsec; /* nanoseconds */
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long tv_nsec; /* nanoseconds */
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};
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};
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#endif /* _STRUCT_TIMESPEC */
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#endif /* _STRUCT_TIMESPEC */
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#ifdef __KERNEL__
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#ifdef __KERNEL__
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/*
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/*
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* Change timeval to jiffies, trying to avoid the
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* Change timeval to jiffies, trying to avoid the
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* most obvious overflows..
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* most obvious overflows..
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*
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*
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* And some not so obvious.
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* And some not so obvious.
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*
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*
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* Note that we don't want to return MAX_LONG, because
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* Note that we don't want to return MAX_LONG, because
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* for various timeout reasons we often end up having
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* for various timeout reasons we often end up having
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* to wait "jiffies+1" in order to guarantee that we wait
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* to wait "jiffies+1" in order to guarantee that we wait
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* at _least_ "jiffies" - so "jiffies+1" had better still
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* at _least_ "jiffies" - so "jiffies+1" had better still
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* be positive.
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* be positive.
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*/
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*/
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#define MAX_JIFFY_OFFSET ((~0UL >> 1)-1)
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#define MAX_JIFFY_OFFSET ((~0UL >> 1)-1)
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static __inline__ unsigned long
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static __inline__ unsigned long
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timespec_to_jiffies(struct timespec *value)
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timespec_to_jiffies(struct timespec *value)
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{
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{
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unsigned long sec = value->tv_sec;
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unsigned long sec = value->tv_sec;
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long nsec = value->tv_nsec;
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long nsec = value->tv_nsec;
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if (sec >= (MAX_JIFFY_OFFSET / HZ))
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if (sec >= (MAX_JIFFY_OFFSET / HZ))
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return MAX_JIFFY_OFFSET;
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return MAX_JIFFY_OFFSET;
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nsec += 1000000000L / HZ - 1;
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nsec += 1000000000L / HZ - 1;
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nsec /= 1000000000L / HZ;
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nsec /= 1000000000L / HZ;
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return HZ * sec + nsec;
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return HZ * sec + nsec;
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}
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}
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static __inline__ void
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static __inline__ void
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jiffies_to_timespec(unsigned long jiffies, struct timespec *value)
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jiffies_to_timespec(unsigned long jiffies, struct timespec *value)
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{
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{
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value->tv_nsec = (jiffies % HZ) * (1000000000L / HZ);
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value->tv_nsec = (jiffies % HZ) * (1000000000L / HZ);
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value->tv_sec = jiffies / HZ;
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value->tv_sec = jiffies / HZ;
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}
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}
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/* Converts Gregorian date to seconds since 1970-01-01 00:00:00.
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/* Converts Gregorian date to seconds since 1970-01-01 00:00:00.
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* Assumes input in normal date format, i.e. 1980-12-31 23:59:59
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* Assumes input in normal date format, i.e. 1980-12-31 23:59:59
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* => year=1980, mon=12, day=31, hour=23, min=59, sec=59.
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* => year=1980, mon=12, day=31, hour=23, min=59, sec=59.
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*
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*
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* [For the Julian calendar (which was used in Russia before 1917,
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* [For the Julian calendar (which was used in Russia before 1917,
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* Britain & colonies before 1752, anywhere else before 1582,
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* Britain & colonies before 1752, anywhere else before 1582,
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* and is still in use by some communities) leave out the
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* and is still in use by some communities) leave out the
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* -year/100+year/400 terms, and add 10.]
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* -year/100+year/400 terms, and add 10.]
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*
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*
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* This algorithm was first published by Gauss (I think).
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* This algorithm was first published by Gauss (I think).
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*
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*
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* WARNING: this function will overflow on 2106-02-07 06:28:16 on
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* WARNING: this function will overflow on 2106-02-07 06:28:16 on
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* machines were long is 32-bit! (However, as time_t is signed, we
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* machines were long is 32-bit! (However, as time_t is signed, we
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* will already get problems at other places on 2038-01-19 03:14:08)
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* will already get problems at other places on 2038-01-19 03:14:08)
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*/
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*/
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static inline unsigned long
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static inline unsigned long
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mktime (unsigned int year, unsigned int mon,
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mktime (unsigned int year, unsigned int mon,
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unsigned int day, unsigned int hour,
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unsigned int day, unsigned int hour,
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unsigned int min, unsigned int sec)
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unsigned int min, unsigned int sec)
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{
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{
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if (0 >= (int) (mon -= 2)) { /* 1..12 -> 11,12,1..10 */
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if (0 >= (int) (mon -= 2)) { /* 1..12 -> 11,12,1..10 */
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mon += 12; /* Puts Feb last since it has leap day */
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mon += 12; /* Puts Feb last since it has leap day */
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year -= 1;
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year -= 1;
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}
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}
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return (((
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return (((
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(unsigned long) (year/4 - year/100 + year/400 + 367*mon/12 + day) +
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(unsigned long) (year/4 - year/100 + year/400 + 367*mon/12 + day) +
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year*365 - 719499
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year*365 - 719499
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)*24 + hour /* now have hours */
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)*24 + hour /* now have hours */
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)*60 + min /* now have minutes */
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)*60 + min /* now have minutes */
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)*60 + sec; /* finally seconds */
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)*60 + sec; /* finally seconds */
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}
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}
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#endif /* __KERNEL__ */
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#endif /* __KERNEL__ */
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struct timeval {
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struct timeval {
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time_t tv_sec; /* seconds */
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time_t tv_sec; /* seconds */
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suseconds_t tv_usec; /* microseconds */
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suseconds_t tv_usec; /* microseconds */
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};
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};
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struct timezone {
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struct timezone {
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int tz_minuteswest; /* minutes west of Greenwich */
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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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int tz_dsttime; /* type of dst correction */
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};
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};
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#define NFDBITS __NFDBITS
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#define NFDBITS __NFDBITS
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#ifdef __KERNEL__
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#ifdef __KERNEL__
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extern void do_gettimeofday(struct timeval *tv);
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extern void do_gettimeofday(struct timeval *tv);
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extern void do_settimeofday(struct timeval *tv);
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extern void do_settimeofday(struct timeval *tv);
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#endif
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#endif
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#define FD_SETSIZE __FD_SETSIZE
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#define FD_SETSIZE __FD_SETSIZE
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#define FD_SET(fd,fdsetp) __FD_SET(fd,fdsetp)
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#define FD_SET(fd,fdsetp) __FD_SET(fd,fdsetp)
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#define FD_CLR(fd,fdsetp) __FD_CLR(fd,fdsetp)
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#define FD_CLR(fd,fdsetp) __FD_CLR(fd,fdsetp)
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#define FD_ISSET(fd,fdsetp) __FD_ISSET(fd,fdsetp)
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#define FD_ISSET(fd,fdsetp) __FD_ISSET(fd,fdsetp)
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#define FD_ZERO(fdsetp) __FD_ZERO(fdsetp)
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#define FD_ZERO(fdsetp) __FD_ZERO(fdsetp)
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/*
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/*
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* Names of the interval timers, and structure
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* Names of the interval timers, and structure
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* defining a timer setting.
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* defining a timer setting.
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*/
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*/
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#define ITIMER_REAL 0
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#define ITIMER_REAL 0
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#define ITIMER_VIRTUAL 1
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#define ITIMER_VIRTUAL 1
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#define ITIMER_PROF 2
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#define ITIMER_PROF 2
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struct itimerspec {
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struct itimerspec {
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struct timespec it_interval; /* timer period */
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struct timespec it_interval; /* timer period */
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struct timespec it_value; /* timer expiration */
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struct timespec it_value; /* timer expiration */
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};
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};
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struct itimerval {
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struct itimerval {
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struct timeval it_interval; /* timer interval */
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struct timeval it_interval; /* timer interval */
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struct timeval it_value; /* current value */
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struct timeval it_value; /* current value */
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};
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};
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#endif
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#endif
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