-/* Copyright (C) 1991-1999, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
+ Lesser General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
/*
- * ISO C Standard: 4.12 DATE and TIME <time.h>
+ * ISO C99 Standard: 7.23 Date and time <time.h>
*/
#ifndef _TIME_H
+#define _TIME_H 1
-#if (! defined __need_time_t && !defined __need_clock_t && \
- ! defined __need_timespec)
-# define _TIME_H 1
-# include <features.h>
+#include <features.h>
-__BEGIN_DECLS
-
-#endif
-
-#ifdef _TIME_H
-/* Get size_t and NULL from <stddef.h>. */
-# define __need_size_t
-# define __need_NULL
-# include <stddef.h>
+#define __need_size_t
+#define __need_NULL
+#include <stddef.h>
/* This defines CLOCKS_PER_SEC, which is the number of processor clock
- ticks per second. */
-# include <bits/time.h>
-
-/* This is the obsolete POSIX.1-1988 name for the same constant. */
-# ifdef __USE_POSIX
-# ifndef CLK_TCK
-# define CLK_TCK CLOCKS_PER_SEC
-# endif
-# endif
-
-#endif /* <time.h> included. */
-
-
-#if !defined __clock_t_defined && (defined _TIME_H || defined __need_clock_t)
-# define __clock_t_defined 1
-
-# include <bits/types.h>
-
-/* Returned by `clock'. */
-typedef __clock_t clock_t;
-
-#endif /* clock_t not defined and <time.h> or need clock_t. */
-#undef __need_clock_t
-
-#if !defined __time_t_defined && (defined _TIME_H || defined __need_time_t)
-# define __time_t_defined 1
-
-# include <bits/types.h>
-
-/* Returned by `time'. */
-typedef __time_t time_t;
-
-#endif /* time_t not defined and <time.h> or need time_t. */
-#undef __need_time_t
-
-
-#if !defined __timespec_defined && \
- ((defined _TIME_H && defined __USE_POSIX199309) || defined __need_timespec)
-# define __timespec_defined 1
+ ticks per second, and possibly a number of other constants. */
+#include <bits/time.h>
-/* POSIX.1b structure for a time value. This is like a `struct timeval' but
- has nanoseconds instead of microseconds. */
-struct timespec
- {
- long int tv_sec; /* Seconds. */
- long int tv_nsec; /* Nanoseconds. */
- };
-
-#endif /* timespec not defined and <time.h> or need timespec. */
-#undef __need_timespec
-
-
-#ifdef _TIME_H
-/* Used by other time functions. */
-struct tm
-{
- int tm_sec; /* Seconds. [0-60] (1 leap second) */
- int tm_min; /* Minutes. [0-59] */
- int tm_hour; /* Hours. [0-23] */
- int tm_mday; /* Day. [1-31] */
- int tm_mon; /* Month. [0-11] */
- int tm_year; /* Year - 1900. */
- int tm_wday; /* Day of week. [0-6] */
- int tm_yday; /* Days in year.[0-365] */
- int tm_isdst; /* DST. [-1/0/1]*/
-
-# ifdef __USE_BSD
- long int tm_gmtoff; /* Seconds east of UTC. */
- __const char *tm_zone; /* Timezone abbreviation. */
-# else
- long int __tm_gmtoff; /* Seconds east of UTC. */
- __const char *__tm_zone; /* Timezone abbreviation. */
-# endif
-};
+/* Many of the typedefs and structs whose official home is this header
+ may also need to be defined by other headers. */
+#include <bits/types/clock_t.h>
+#include <bits/types/time_t.h>
+#include <bits/types/struct_tm.h>
+#if defined __USE_POSIX199309 || defined __USE_ISOC11
+# include <bits/types/struct_timespec.h>
+#endif
#ifdef __USE_POSIX199309
-/* Clock ID used in clock and timer functions. */
-typedef __clockid_t clockid_t;
-
-/* Timer ID returned by `timer_create'. */
-typedef __timer_t timer_t;
-
-/* POSIX.1b structure for timer start values and intervals. */
-struct itimerspec
- {
- struct timespec it_interval;
- struct timespec it_value;
- };
-
-/* We can use a simple forward declaration. */
+# include <bits/types/clockid_t.h>
+# include <bits/types/timer_t.h>
+# include <bits/types/struct_itimerspec.h>
struct sigevent;
-
-#endif /* POSIX.1b */
+#endif
#ifdef __USE_XOPEN2K
# ifndef __pid_t_defined
# endif
#endif
+#ifdef __USE_XOPEN2K8
+# include <xlocale.h>
+#endif
+
+#ifdef __USE_ISOC11
+/* Time base values for timespec_get. */
+# define TIME_UTC 1
+#endif
+
+__BEGIN_DECLS
+__BEGIN_NAMESPACE_STD
/* Time used by the program so far (user time + system time).
The result / CLOCKS_PER_SECOND is program time in seconds. */
extern clock_t clock (void) __THROW;
Write no more than MAXSIZE characters and return the number
of characters written, or 0 if it would exceed MAXSIZE. */
extern size_t strftime (char *__restrict __s, size_t __maxsize,
- __const char *__restrict __format,
- __const struct tm *__restrict __tp) __THROW;
+ const char *__restrict __format,
+ const struct tm *__restrict __tp) __THROW;
+__END_NAMESPACE_STD
-# ifdef __USE_XOPEN
+#ifdef __USE_XOPEN
/* Parse S according to FORMAT and store binary time information in TP.
The return value is a pointer to the first unparsed character in S. */
-extern char *strptime (__const char *__s, __const char *__fmt, struct tm *__tp)
+extern char *strptime (const char *__restrict __s,
+ const char *__restrict __fmt, struct tm *__tp)
__THROW;
-# endif
+#endif
+
+#ifdef __USE_XOPEN2K8
+/* Similar to the two functions above but take the information from
+ the provided locale and not the global locale. */
+
+extern size_t strftime_l (char *__restrict __s, size_t __maxsize,
+ const char *__restrict __format,
+ const struct tm *__restrict __tp,
+ __locale_t __loc) __THROW;
+#endif
+
+#ifdef __USE_GNU
+extern char *strptime_l (const char *__restrict __s,
+ const char *__restrict __fmt, struct tm *__tp,
+ __locale_t __loc) __THROW;
+#endif
+__BEGIN_NAMESPACE_STD
/* Return the `struct tm' representation of *TIMER
in Universal Coordinated Time (aka Greenwich Mean Time). */
-extern struct tm *gmtime (__const time_t *__timer) __THROW;
+extern struct tm *gmtime (const time_t *__timer) __THROW;
/* Return the `struct tm' representation
of *TIMER in the local timezone. */
-extern struct tm *localtime (__const time_t *__timer) __THROW;
+extern struct tm *localtime (const time_t *__timer) __THROW;
+__END_NAMESPACE_STD
-# if defined __USE_POSIX || defined __USE_MISC
+#ifdef __USE_POSIX
/* Return the `struct tm' representation of *TIMER in UTC,
using *TP to store the result. */
-extern struct tm *gmtime_r (__const time_t *__restrict __timer,
+extern struct tm *gmtime_r (const time_t *__restrict __timer,
struct tm *__restrict __tp) __THROW;
/* Return the `struct tm' representation of *TIMER in local time,
using *TP to store the result. */
-extern struct tm *localtime_r (__const time_t *__restrict __timer,
+extern struct tm *localtime_r (const time_t *__restrict __timer,
struct tm *__restrict __tp) __THROW;
-# endif /* POSIX or misc */
+#endif /* POSIX */
+__BEGIN_NAMESPACE_STD
/* Return a string of the form "Day Mon dd hh:mm:ss yyyy\n"
that is the representation of TP in this format. */
-extern char *asctime (__const struct tm *__tp) __THROW;
+extern char *asctime (const struct tm *__tp) __THROW;
/* Equivalent to `asctime (localtime (timer))'. */
-extern char *ctime (__const time_t *__timer) __THROW;
+extern char *ctime (const time_t *__timer) __THROW;
+__END_NAMESPACE_STD
-# if defined __USE_POSIX || defined __USE_MISC
+#ifdef __USE_POSIX
/* Reentrant versions of the above functions. */
/* Return in BUF a string of the form "Day Mon dd hh:mm:ss yyyy\n"
that is the representation of TP in this format. */
-extern char *asctime_r (__const struct tm *__restrict __tp,
+extern char *asctime_r (const struct tm *__restrict __tp,
char *__restrict __buf) __THROW;
/* Equivalent to `asctime_r (localtime_r (timer, *TMP*), buf)'. */
-extern char *ctime_r (__const time_t *__restrict __timer,
+extern char *ctime_r (const time_t *__restrict __timer,
char *__restrict __buf) __THROW;
-# endif /* POSIX or misc */
+#endif /* POSIX */
/* Defined in localtime.c. */
extern long int __timezone; /* Seconds west of UTC. */
-# ifdef __USE_POSIX
+#ifdef __USE_POSIX
/* Same as above. */
extern char *tzname[2];
/* Set time conversion information from the TZ environment variable.
If TZ is not defined, a locale-dependent default is used. */
extern void tzset (void) __THROW;
-# endif
+#endif
-# if defined __USE_SVID || defined __USE_XOPEN
+#if defined __USE_MISC || defined __USE_XOPEN
extern int daylight;
extern long int timezone;
-# endif
+#endif
-# ifdef __USE_SVID
+#ifdef __USE_MISC
/* Set the system time to *WHEN.
This call is restricted to the superuser. */
-extern int stime (__const time_t *__when) __THROW;
-# endif
+extern int stime (const time_t *__when) __THROW;
+#endif
/* Nonzero if YEAR is a leap year (every 4 years,
except every 100th isn't, and every 400th is). */
-# define __isleap(year) \
+#define __isleap(year) \
((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0))
-# ifdef __USE_MISC
+#ifdef __USE_MISC
/* Miscellaneous functions many Unices inherited from the public domain
localtime package. These are included only for compatibility. */
extern time_t timelocal (struct tm *__tp) __THROW;
/* Return the number of days in YEAR. */
-extern int dysize (int __year) __THROW;
-# endif
+extern int dysize (int __year) __THROW __attribute__ ((__const__));
+#endif
+
+#ifdef __USE_POSIX199309
+/* Pause execution for a number of nanoseconds.
-# ifdef __USE_POSIX199309
-/* Pause execution for a number of nanoseconds. */
-extern int nanosleep (__const struct timespec *__requested_time,
- struct timespec *__remaining) __THROW;
+ This function is a cancellation point and therefore not marked with
+ __THROW. */
+extern int nanosleep (const struct timespec *__requested_time,
+ struct timespec *__remaining);
/* Get resolution of clock CLOCK_ID. */
extern int clock_gettime (clockid_t __clock_id, struct timespec *__tp) __THROW;
/* Set clock CLOCK_ID to value TP. */
-extern int clock_settime (clockid_t __clock_id, __const struct timespec *__tp)
+extern int clock_settime (clockid_t __clock_id, const struct timespec *__tp)
__THROW;
-# ifdef __USE_XOPEN2K
+# ifdef __USE_XOPEN2K
+/* High-resolution sleep with the specified clock.
+
+ This function is a cancellation point and therefore not marked with
+ __THROW. */
+extern int clock_nanosleep (clockid_t __clock_id, int __flags,
+ const struct timespec *__req,
+ struct timespec *__rem);
+
/* Return clock ID for CPU-time clock. */
-extern int clock_getcpuclockid (pid_t __pid, clockid_t *__clock_id);
-# endif
+extern int clock_getcpuclockid (pid_t __pid, clockid_t *__clock_id) __THROW;
+# endif
/* Create new per-process timer using CLOCK_ID. */
-extern int timer_create (clockid_t __clock_id, struct sigevent *__evp,
- timer_t *__timerid) __THROW;
+extern int timer_create (clockid_t __clock_id,
+ struct sigevent *__restrict __evp,
+ timer_t *__restrict __timerid) __THROW;
/* Delete timer TIMERID. */
extern int timer_delete (timer_t __timerid) __THROW;
-/* Set timer TIMERID to VALUE, returning old value in OVLAUE. */
+/* Set timer TIMERID to VALUE, returning old value in OVALUE. */
extern int timer_settime (timer_t __timerid, int __flags,
- __const struct itimerspec *__value,
- struct itimerspec *__ovalue) __THROW;
+ const struct itimerspec *__restrict __value,
+ struct itimerspec *__restrict __ovalue) __THROW;
-/* Get current value of timer TIMERID and store it in VLAUE. */
+/* Get current value of timer TIMERID and store it in VALUE. */
extern int timer_gettime (timer_t __timerid, struct itimerspec *__value)
__THROW;
/* Get expiration overrun for timer TIMERID. */
extern int timer_getoverrun (timer_t __timerid) __THROW;
-# endif
+#endif
+
+
+#ifdef __USE_ISOC11
+/* Set TS to calendar time based in time base BASE. */
+extern int timespec_get (struct timespec *__ts, int __base)
+ __THROW __nonnull ((1));
+#endif
-# ifdef __USE_XOPEN_EXTENDED
+#ifdef __USE_XOPEN_EXTENDED
/* Set to one of the following values to indicate an error.
1 the DATEMSK environment variable is null or undefined,
2 the template file cannot be opened for reading,
6 memory allication failed (not enough memory available),
7 there is no line in the template that matches the input,
8 invalid input specification Example: February 31 or a time is
- specified that can not be represented in a time_t (representing
+ specified that can not be represented in a time_t (representing
the time in seconds since 00:00:00 UTC, January 1, 1970) */
extern int getdate_err;
/* Parse the given string as a date specification and return a value
representing the value. The templates from the file identified by
the environment variable DATEMSK are used. In case of an error
- `getdate_err' is set. */
-extern struct tm *getdate (__const char *__string) __THROW;
-# endif
+ `getdate_err' is set.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern struct tm *getdate (const char *__string);
+#endif
-# ifdef __USE_GNU
+#ifdef __USE_GNU
/* Since `getdate' is not reentrant because of the use of `getdate_err'
and the static buffer to return the result in, we provide a thread-safe
variant. The functionality is the same. The result is returned in
the buffer pointed to by RESBUFP and in case of an error the return
- value is != 0 with the same values as given above for `getdate_err'. */
-extern int getdate_r (__const char *__restrict __string,
- struct tm *__restrict __resbufp) __THROW;
-# endif
-
+ value is != 0 with the same values as given above for `getdate_err'.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern int getdate_r (const char *__restrict __string,
+ struct tm *__restrict __resbufp);
+#endif
__END_DECLS
-#endif /* <time.h> included. */
-
-#endif /* <time.h> not already included. */
+#endif /* time.h. */
projects / thirdparty / glibc.git / blobdiff