Release 4.12 include/linux/time.h
#ifndef _LINUX_TIME_H
#define _LINUX_TIME_H
# include <linux/cache.h>
# include <linux/seqlock.h>
# include <linux/math64.h>
# include <linux/time64.h>
extern struct timezone sys_tz;
#define TIME_T_MAX (time_t)((1UL << ((sizeof(time_t) << 3) - 1)) - 1)
static inline int timespec_equal(const struct timespec *a,
const struct timespec *b)
{
return (a->tv_sec == b->tv_sec) && (a->tv_nsec == b->tv_nsec);
}
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| Person | Tokens | Prop | Commits | CommitProp |
| Andi Kleen | 37 | 92.50% | 1 | 33.33% |
| Jan Engelhardt | 2 | 5.00% | 1 | 33.33% |
| Andrew Morton | 1 | 2.50% | 1 | 33.33% |
| Total | 40 | 100.00% | 3 | 100.00% |
/*
* lhs < rhs: return <0
* lhs == rhs: return 0
* lhs > rhs: return >0
*/
static inline int timespec_compare(const struct timespec *lhs, const 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;
}
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| Andrew Morton | 53 | 96.36% | 1 | 50.00% |
| Rolf Eike Beer | 2 | 3.64% | 1 | 50.00% |
| Total | 55 | 100.00% | 2 | 100.00% |
static inline int timeval_compare(const struct timeval *lhs, const struct timeval *rhs)
{
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;
}
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| Person | Tokens | Prop | Commits | CommitProp |
| Andrew Morton | 53 | 96.36% | 1 | 50.00% |
| Rolf Eike Beer | 2 | 3.64% | 1 | 50.00% |
| Total | 55 | 100.00% | 2 | 100.00% |
extern time64_t mktime64(const unsigned int year, const unsigned int mon,
const unsigned int day, const unsigned int hour,
const unsigned int min, const unsigned int sec);
/**
* Deprecated. Use mktime64().
*/
static inline 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)
{
return mktime64(year, mon, day, hour, min, sec);
}
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| Ingo Molnar | 6 | 11.11% | 1 | 33.33% |
| Total | 54 | 100.00% | 3 | 100.00% |
extern void set_normalized_timespec(struct timespec *ts, time_t sec, s64 nsec);
/*
* timespec_add_safe assumes both values are positive and checks
* for overflow. It will return TIME_T_MAX if the reutrn would be
* smaller then either of the arguments.
*/
extern struct timespec timespec_add_safe(const struct timespec lhs,
const struct timespec rhs);
static inline struct timespec timespec_add(struct timespec lhs,
struct timespec rhs)
{
struct timespec ts_delta;
set_normalized_timespec(&ts_delta, lhs.tv_sec + rhs.tv_sec,
lhs.tv_nsec + rhs.tv_nsec);
return ts_delta;
}
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| John Stultz | 45 | 100.00% | 1 | 100.00% |
| Total | 45 | 100.00% | 1 | 100.00% |
/*
* sub = lhs - rhs, in normalized form
*/
static inline struct timespec timespec_sub(struct timespec lhs,
struct timespec rhs)
{
struct timespec ts_delta;
set_normalized_timespec(&ts_delta, lhs.tv_sec - rhs.tv_sec,
lhs.tv_nsec - rhs.tv_nsec);
return ts_delta;
}
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| Shailabh Nagar | 45 | 100.00% | 1 | 100.00% |
| Total | 45 | 100.00% | 1 | 100.00% |
/*
* Returns true if the timespec is norm, false if denorm:
*/
static inline bool timespec_valid(const struct timespec *ts)
{
/* Dates before 1970 are bogus */
if (ts->tv_sec < 0)
return false;
/* Can't have more nanoseconds then a second */
if ((unsigned long)ts->tv_nsec >= NSEC_PER_SEC)
return false;
return true;
}
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| John Stultz | 40 | 90.91% | 2 | 66.67% |
| Thomas Gleixner | 4 | 9.09% | 1 | 33.33% |
| Total | 44 | 100.00% | 3 | 100.00% |
static inline bool timespec_valid_strict(const struct timespec *ts)
{
if (!timespec_valid(ts))
return false;
/* Disallow values that could overflow ktime_t */
if ((unsigned long long)ts->tv_sec >= KTIME_SEC_MAX)
return false;
return true;
}
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| Person | Tokens | Prop | Commits | CommitProp |
| John Stultz | 44 | 100.00% | 2 | 100.00% |
| Total | 44 | 100.00% | 2 | 100.00% |
static inline bool timeval_valid(const struct timeval *tv)
{
/* Dates before 1970 are bogus */
if (tv->tv_sec < 0)
return false;
/* Can't have more microseconds then a second */
if (tv->tv_usec < 0 || tv->tv_usec >= USEC_PER_SEC)
return false;
return true;
}
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| Sasha Levin | 46 | 100.00% | 1 | 100.00% |
| Total | 46 | 100.00% | 1 | 100.00% |
extern struct timespec timespec_trunc(struct timespec t, unsigned gran);
/*
* Validates if a timespec/timeval used to inject a time offset is valid.
* Offsets can be postive or negative. The value of the timeval/timespec
* is the sum of its fields, but *NOTE*: the field tv_usec/tv_nsec must
* always be non-negative.
*/
static inline bool timeval_inject_offset_valid(const struct timeval *tv)
{
/* We don't check the tv_sec as it can be positive or negative */
/* Can't have more microseconds then a second */
if (tv->tv_usec < 0 || tv->tv_usec >= USEC_PER_SEC)
return false;
return true;
}
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| Person | Tokens | Prop | Commits | CommitProp |
| John Stultz | 35 | 100.00% | 1 | 100.00% |
| Total | 35 | 100.00% | 1 | 100.00% |
static inline bool timespec_inject_offset_valid(const struct timespec *ts)
{
/* We don't check the tv_sec as it can be positive or negative */
/* Can't have more nanoseconds then a second */
if (ts->tv_nsec < 0 || ts->tv_nsec >= NSEC_PER_SEC)
return false;
return true;
}
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| Person | Tokens | Prop | Commits | CommitProp |
| John Stultz | 35 | 100.00% | 1 | 100.00% |
| Total | 35 | 100.00% | 1 | 100.00% |
/* Some architectures do not supply their own clocksource.
* This is mainly the case in architectures that get their
* inter-tick times by reading the counter on their interval
* timer. Since these timers wrap every tick, they're not really
* useful as clocksources. Wrapping them to act like one is possible
* but not very efficient. So we provide a callout these arches
* can implement for use with the jiffies clocksource to provide
* finer then tick granular time.
*/
#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
extern u32 (*arch_gettimeoffset)(void);
#endif
struct itimerval;
extern int do_setitimer(int which, struct itimerval *value,
struct itimerval *ovalue);
extern int do_getitimer(int which, struct itimerval *value);
extern long do_utimes(int dfd, const char __user *filename, struct timespec *times, int flags);
struct tms;
extern void do_sys_times(struct tms *);
/*
* Similar to the struct tm in userspace <time.h>, but it needs to be here so
* that the kernel source is self contained.
*/
struct tm {
/*
* the number of seconds after the minute, normally in the range
* 0 to 59, but can be up to 60 to allow for leap seconds
*/
int tm_sec;
/* the number of minutes after the hour, in the range 0 to 59*/
int tm_min;
/* the number of hours past midnight, in the range 0 to 23 */
int tm_hour;
/* the day of the month, in the range 1 to 31 */
int tm_mday;
/* the number of months since January, in the range 0 to 11 */
int tm_mon;
/* the number of years since 1900 */
long tm_year;
/* the number of days since Sunday, in the range 0 to 6 */
int tm_wday;
/* the number of days since January 1, in the range 0 to 365 */
int tm_yday;
};
void time64_to_tm(time64_t totalsecs, int offset, struct tm *result);
/**
* time_to_tm - converts the calendar time to local broken-down time
*
* @totalsecs the number of seconds elapsed since 00:00:00 on January 1, 1970,
* Coordinated Universal Time (UTC).
* @offset offset seconds adding to totalsecs.
* @result pointer to struct tm variable to receive broken-down time
*/
static inline void time_to_tm(time_t totalsecs, int offset, struct tm *result)
{
time64_to_tm(totalsecs, offset, result);
}
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| Total | 27 | 100.00% | 1 | 100.00% |
/**
* 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;
}
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| Person | Tokens | Prop | Commits | CommitProp |
| Thomas Gleixner | 27 | 93.10% | 1 | 50.00% |
| Roman Zippel | 2 | 6.90% | 1 | 50.00% |
| Total | 29 | 100.00% | 2 | 100.00% |
/**
* 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)
{
return ((s64) tv->tv_sec * NSEC_PER_SEC) +
tv->tv_usec * NSEC_PER_USEC;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Thomas Gleixner | 29 | 93.55% | 1 | 50.00% |
| Roman Zippel | 2 | 6.45% | 1 | 50.00% |
| Total | 31 | 100.00% | 2 | 100.00% |
/**
* 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);
/**
* timespec_add_ns - Adds nanoseconds to a timespec
* @a: pointer to timespec to be incremented
* @ns: unsigned nanoseconds value to be added
*
* This must always be inlined because its used from the x86-64 vdso,
* which cannot call other kernel functions.
*/
static __always_inline void timespec_add_ns(struct timespec *a, u64 ns)
{
a->tv_sec += __iter_div_u64_rem(a->tv_nsec + ns, NSEC_PER_SEC, &ns);
a->tv_nsec = ns;
}
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| John Stultz | 28 | 71.79% | 1 | 33.33% |
| Jeremy Fitzhardinge | 11 | 28.21% | 2 | 66.67% |
| Total | 39 | 100.00% | 3 | 100.00% |
#endif
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| John Stultz | 253 | 28.05% | 10 | 23.26% |
| Andrew Morton | 141 | 15.63% | 2 | 4.65% |
| Thomas Gleixner | 128 | 14.19% | 8 | 18.60% |
| Xunlei Pang | 55 | 6.10% | 1 | 2.33% |
| Zhao Lei | 51 | 5.65% | 1 | 2.33% |
| Shailabh Nagar | 46 | 5.10% | 1 | 2.33% |
| Sasha Levin | 46 | 5.10% | 1 | 2.33% |
| Andi Kleen | 40 | 4.43% | 1 | 2.33% |
| Linus Torvalds (pre-git) | 38 | 4.21% | 4 | 9.30% |
| Deepa Dinamani | 30 | 3.33% | 1 | 2.33% |
| Ingo Molnar | 21 | 2.33% | 1 | 2.33% |
| Jeremy Fitzhardinge | 14 | 1.55% | 2 | 4.65% |
| Frank Mayhar | 12 | 1.33% | 1 | 2.33% |
| Roman Zippel | 6 | 0.67% | 1 | 2.33% |
| Christoph Hellwig | 5 | 0.55% | 1 | 2.33% |
| Rolf Eike Beer | 4 | 0.44% | 1 | 2.33% |
| David Howells | 3 | 0.33% | 1 | 2.33% |
| Stephen Warren | 3 | 0.33% | 1 | 2.33% |
| Martin Schwidefsky | 2 | 0.22% | 1 | 2.33% |
| Jan Engelhardt | 2 | 0.22% | 1 | 2.33% |
| Christoph Lameter | 1 | 0.11% | 1 | 2.33% |
| Jon Hunter | 1 | 0.11% | 1 | 2.33% |
| Total | 902 | 100.00% | 43 | 100.00% |
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