#include <linux/types.h>
#ifdef __KERNEL__
-#include <linux/seqlock.h>
+# include <linux/seqlock.h>
#endif
#ifndef _STRUCT_TIMESPEC
time_t tv_sec; /* seconds */
long tv_nsec; /* nanoseconds */
};
-#endif /* _STRUCT_TIMESPEC */
+#endif
struct timeval {
time_t tv_sec; /* seconds */
#ifdef __KERNEL__
-/* Parameters used to convert the timespec values */
-#ifndef USEC_PER_SEC
-#define USEC_PER_SEC (1000000L)
-#endif
-
-#ifndef NSEC_PER_SEC
-#define NSEC_PER_SEC (1000000000L)
-#endif
-
-#ifndef NSEC_PER_USEC
-#define NSEC_PER_USEC (1000L)
-#endif
+/* 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)
-{
+static inline int timespec_equal(struct timespec *a, struct timespec *b)
+{
return (a->tv_sec == b->tv_sec) && (a->tv_nsec == b->tv_nsec);
-}
+}
-/* Converts Gregorian date to seconds since 1970-01-01 00:00:00.
- * Assumes input in normal date format, i.e. 1980-12-31 23:59:59
- * => year=1980, mon=12, day=31, hour=23, min=59, sec=59.
- *
- * [For the Julian calendar (which was used in Russia before 1917,
- * Britain & colonies before 1752, anywhere else before 1582,
- * and is still in use by some communities) leave out the
- * -year/100+year/400 terms, and add 10.]
- *
- * This algorithm was first published by Gauss (I think).
- *
- * WARNING: this function will overflow on 2106-02-07 06:28:16 on
- * machines were long is 32-bit! (However, as time_t is signed, we
- * will already get problems at other places on 2038-01-19 03:14:08)
+/*
+ * lhs < rhs: return <0
+ * lhs == rhs: return 0
+ * lhs > rhs: return >0
*/
-static inline unsigned long
-mktime (unsigned int year, unsigned int mon,
- unsigned int day, unsigned int hour,
- unsigned int min, unsigned int sec)
+static inline int timespec_compare(struct timespec *lhs, struct timespec *rhs)
+{
+ if (lhs->tv_sec < rhs->tv_sec)
+ return -1;
+ if (lhs->tv_sec > rhs->tv_sec)
+ return 1;
+ return lhs->tv_nsec - rhs->tv_nsec;
+}
+
+static inline int timeval_compare(struct timeval *lhs, struct timeval *rhs)
{
- if (0 >= (int) (mon -= 2)) { /* 1..12 -> 11,12,1..10 */
- mon += 12; /* Puts Feb last since it has leap day */
- year -= 1;
- }
-
- return (((
- (unsigned long) (year/4 - year/100 + year/400 + 367*mon/12 + day) +
- year*365 - 719499
- )*24 + hour /* now have hours */
- )*60 + min /* now have minutes */
- )*60 + sec; /* finally seconds */
+ if (lhs->tv_sec < rhs->tv_sec)
+ return -1;
+ if (lhs->tv_sec > rhs->tv_sec)
+ return 1;
+ return lhs->tv_usec - rhs->tv_usec;
}
+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);
+
+/*
+ * Returns true if the timespec is norm, false if denorm:
+ */
+#define timespec_valid(ts) \
+ (((ts)->tv_sec >= 0) && (((unsigned long) (ts)->tv_nsec) < NSEC_PER_SEC))
+
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 })
+#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_nanosleep(struct timespec *t);
-extern long do_utimes(char __user * filename, struct timeval * times);
+#define do_posix_clock_monotonic_gettime(ts) ktime_get_ts(ts)
+extern long do_utimes(int dfd, char __user *filename, struct timeval *times);
struct itimerval;
-extern int do_setitimer(int which, struct itimerval *value, struct itimerval *ovalue);
+extern int do_setitimer(int which, struct itimerval *value,
+ struct itimerval *ovalue);
+extern unsigned int alarm_setitimer(unsigned int seconds);
extern int do_getitimer(int which, struct itimerval *value);
-extern void getnstimeofday (struct timespec *tv);
+extern void getnstimeofday(struct timespec *tv);
extern struct timespec timespec_trunc(struct timespec t, unsigned gran);
-static inline void
-set_normalized_timespec (struct timespec *ts, time_t sec, long nsec)
+/**
+ * timespec_to_ns - Convert timespec to nanoseconds
+ * @ts: pointer to the timespec variable to be converted
+ *
+ * Returns the scalar nanosecond representation of the timespec
+ * parameter.
+ */
+static inline s64 timespec_to_ns(const struct timespec *ts)
+{
+ return ((s64) ts->tv_sec * NSEC_PER_SEC) + ts->tv_nsec;
+}
+
+/**
+ * timeval_to_ns - Convert timeval to nanoseconds
+ * @ts: pointer to the timeval variable to be converted
+ *
+ * Returns the scalar nanosecond representation of the timeval
+ * parameter.
+ */
+static inline s64 timeval_to_ns(const struct timeval *tv)
{
- while (nsec > NSEC_PER_SEC) {
- nsec -= NSEC_PER_SEC;
- ++sec;
- }
- while (nsec < 0) {
- nsec += NSEC_PER_SEC;
- --sec;
- }
- ts->tv_sec = sec;
- ts->tv_nsec = nsec;
+ return ((s64) tv->tv_sec * NSEC_PER_SEC) +
+ tv->tv_usec * NSEC_PER_USEC;
}
+/**
+ * ns_to_timespec - Convert nanoseconds to timespec
+ * @nsec: the nanoseconds value to be converted
+ *
+ * Returns the timespec representation of the nsec parameter.
+ */
+extern struct timespec ns_to_timespec(const s64 nsec);
+
+/**
+ * ns_to_timeval - Convert nanoseconds to timeval
+ * @nsec: the nanoseconds value to be converted
+ *
+ * Returns the timeval representation of the nsec parameter.
+ */
+extern struct timeval ns_to_timeval(const s64 nsec);
+
#endif /* __KERNEL__ */
#define NFDBITS __NFDBITS
/*
* Names of the interval timers, and structure
- * defining a timer setting.
+ * defining a timer setting:
*/
-#define ITIMER_REAL 0
-#define ITIMER_VIRTUAL 1
-#define ITIMER_PROF 2
+#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 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 */
+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).
+ * 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_REALTIME_HR 4
-#define CLOCK_MONOTONIC_HR 5
+#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
+ * The IDs of various hardware clocks:
*/
-
-
-#define CLOCK_SGI_CYCLE 10
-#define MAX_CLOCKS 16
-#define CLOCKS_MASK (CLOCK_REALTIME | CLOCK_MONOTONIC | \
- CLOCK_REALTIME_HR | CLOCK_MONOTONIC_HR)
-#define CLOCKS_MONO (CLOCK_MONOTONIC & CLOCK_MONOTONIC_HR)
+#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.
+ * The various flags for setting POSIX.1b interval timers:
*/
-
-#define TIMER_ABSTIME 0x01
-
+#define TIMER_ABSTIME 0x01
#endif
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