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-rw-r--r--include/time.h418
1 files changed, 331 insertions, 87 deletions
diff --git a/include/time.h b/include/time.h
index 4d9781d5d..08ee502e5 100644
--- a/include/time.h
+++ b/include/time.h
@@ -1,122 +1,366 @@
-/* Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
+/* Copyright (C) 1991-1999, 2000, 2001 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.
+ The GNU C Library is free software; you can redistribute it and/or
+ 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.
+ 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
+ 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, 1992 Free Software Foundation, Inc., 675 Mass Ave,
-Cambridge, MA 02139, USA. */
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
/*
- * ANSI Standard: 4.12 DATE and TIME <time.h>
+ * ISO C99 Standard: 7.23 Date and time <time.h>
*/
-#ifndef _TIME_H
-#define _TIME_H
+#ifndef _TIME_H
-#include <features.h>
-#include <sys/time.h>
+#if (! defined __need_time_t && !defined __need_clock_t && \
+ ! defined __need_timespec)
+# define _TIME_H 1
+# include <features.h>
-#ifndef _TIME_T
-#define _TIME_T
-typedef long time_t;
-#endif
+__BEGIN_DECLS
-#ifndef _CLOCK_T
-#define _CLOCK_T
-typedef long clock_t;
#endif
-#ifndef _SIZE_T
-#define _SIZE_T
-typedef unsigned int size_t;
-#endif
+#ifdef _TIME_H
+/* Get size_t and NULL from <stddef.h>. */
+# define __need_size_t
+# define __need_NULL
+# include <stddef.h>
-#ifndef NULL
-#ifdef __cplusplus
-#define NULL 0
-#else
-#define NULL ((void *) 0)
-#endif
-#endif
+/* 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. */
+# if !defined __STRICT_ANSI__ && !defined __USE_XOPEN2K
+# 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 __clockid_t_defined && \
+ ((defined _TIME_H && defined __USE_POSIX199309) || defined __need_clockid_t)
+# define __clockid_t_defined 1
+
+# include <bits/types.h>
+
+/* Clock ID used in clock and timer functions. */
+typedef __clockid_t clockid_t;
+
+#endif /* clockid_t not defined and <time.h> or need clockid_t. */
+#undef __clockid_time_t
+
+#if !defined __timer_t_defined && \
+ ((defined _TIME_H && defined __USE_POSIX199309) || defined __need_timer_t)
+# define __timer_t_defined 1
+
+# include <bits/types.h>
-#define CLOCKS_PER_SEC 100
-#define CLK_TCK 100 /* That must be the same as HZ ???? */
-
-struct tm {
- int tm_sec;
- int tm_min;
- int tm_hour;
- int tm_mday;
- int tm_mon;
- int tm_year;
- int tm_wday;
- int tm_yday;
- int tm_isdst;
- /* Those are for future use. */
- long int __tm_gmtoff__;
- __const char *__tm_zone__;
+/* Timer ID returned by `timer_create'. */
+typedef __timer_t timer_t;
+
+#endif /* timer_t not defined and <time.h> or need timer_t. */
+#undef __need_timer_t
+
+
+#if !defined __timespec_defined && \
+ ((defined _TIME_H && defined __USE_POSIX199309) || defined __need_timespec)
+# define __timespec_defined 1
+
+/* 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
};
-#define __isleap(year) \
- ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0))
+#ifdef __USE_POSIX199309
+/* 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. */
+struct sigevent;
+
+#endif /* POSIX.1b */
+
+#ifdef __USE_XOPEN2K
+# ifndef __pid_t_defined
+typedef __pid_t pid_t;
+# define __pid_t_defined
+# endif
+#endif
+
+
+/* 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;
+
+/* Return the current time and put it in *TIMER if TIMER is not NULL. */
+extern time_t time (time_t *__timer) __THROW;
+
+/* Return the difference between TIME1 and TIME0. */
+extern double difftime (time_t __time1, time_t __time0)
+ __THROW __attribute__ ((__const__));
+
+/* Return the `time_t' representation of TP and normalize TP. */
+extern time_t mktime (struct tm *__tp) __THROW;
+
+
+/* Format TP into S according to FORMAT.
+ 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;
+
+# 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 *__restrict __s,
+ __const char *__restrict __fmt, struct tm *__tp)
+ __THROW;
+# endif
+
+
+/* Return the `struct tm' representation of *TIMER
+ in Universal Coordinated Time (aka Greenwich Mean Time). */
+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;
+
+# if defined __USE_POSIX || defined __USE_MISC
+/* 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,
+ 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,
+ struct tm *__restrict __tp) __THROW;
+# endif /* POSIX or misc */
+
+/* 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;
+
+/* Equivalent to `asctime (localtime (timer))'. */
+extern char *ctime (__const time_t *__timer) __THROW;
+
+# if defined __USE_POSIX || defined __USE_MISC
+/* 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,
+ char *__restrict __buf) __THROW;
+
+/* Equivalent to `asctime_r (localtime_r (timer, *TMP*), buf)'. */
+extern char *ctime_r (__const time_t *__restrict __timer,
+ char *__restrict __buf) __THROW;
+# endif /* POSIX or misc */
+
+
+/* Defined in localtime.c. */
+extern char *__tzname[2]; /* Current timezone names. */
+extern int __daylight; /* If daylight-saving time is ever in use. */
+extern long int __timezone; /* Seconds west of UTC. */
+
+
+# ifdef __USE_POSIX
+/* Same as above. */
extern char *tzname[2];
-extern int daylight;
-extern long int timezone;
-__BEGIN_DECLS
+/* 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
-extern int stime __P ((time_t* __tptr));
+# if defined __USE_SVID || defined __USE_XOPEN
+extern int daylight;
+extern long int timezone;
+# endif
-extern clock_t clock __P ((void));
-extern time_t time __P ((time_t * __tp));
-extern __CONSTVALUE double difftime __P ((time_t __time2,
- time_t __time1)) __CONSTVALUE2;
-extern time_t mktime __P ((struct tm * __tp));
+# ifdef __USE_SVID
+/* Set the system time to *WHEN.
+ This call is restricted to the superuser. */
+extern int stime (__const time_t *__when) __THROW;
+# endif
-extern char * asctime __P ((__const struct tm * __tp));
-extern char * ctime __P ((__const time_t * __tp));
-extern size_t strftime __P ((char * __s, size_t __smax,
- __const char * __fmt, __const struct tm * __tp));
-extern char * strptime __P ((__const char * __s, __const char * __fmt,
- struct tm * __tm));
-extern void tzset __P ((void));
+/* Nonzero if YEAR is a leap year (every 4 years,
+ except every 100th isn't, and every 400th is). */
+# define __isleap(year) \
+ ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0))
-extern struct tm* gmtime __P ((__const time_t *__tp));
-extern struct tm* localtime __P ((__const time_t * __tp));
-#ifdef __USE_MISC
+# ifdef __USE_MISC
/* Miscellaneous functions many Unices inherited from the public domain
- localtime package. These are included only for compatibility. */
+ localtime package. These are included only for compatibility. */
/* Like `mktime', but for TP represents Universal Time, not local time. */
-extern time_t timegm __P ((struct tm *__tp));
-
+extern time_t timegm (struct tm *__tp) __THROW;
+
/* Another name for `mktime'. */
-extern time_t timelocal __P ((struct tm *__tp));
+extern time_t timelocal (struct tm *__tp) __THROW;
+
+/* Return the number of days in YEAR. */
+extern int dysize (int __year) __THROW __attribute__ ((__const__));
+# endif
+
+
+# ifdef __USE_POSIX199309
+/* Pause execution for a number of nanoseconds. */
+extern int nanosleep (__const struct timespec *__requested_time,
+ struct timespec *__remaining) __THROW;
+
+
+/* Get resolution of clock CLOCK_ID. */
+extern int clock_getres (clockid_t __clock_id, struct timespec *__res) __THROW;
+
+/* Get current value of clock CLOCK_ID and store it in TP. */
+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)
+ __THROW;
+
+# ifdef __USE_XOPEN2K
+/* High-resolution sleep with the specified clock. */
+extern int clock_nanosleep (clockid_t __clock_id, int __flags,
+ __const struct timespec *__req,
+ struct timespec *__rem) __THROW;
+
+/* Return clock ID for CPU-time clock. */
+extern int clock_getcpuclockid (pid_t __pid, clockid_t *__clock_id) __THROW;
+# endif
-#endif
-extern char * asctime_r __P((__const struct tm *, char *));
-extern char * ctime_r __P((__const time_t *, char *));
-extern struct tm* gmtime_r __P((__const time_t *, struct tm *));
-extern struct tm* localtime_r __P((__const time_t *, struct tm *));
+/* Create new per-process timer using CLOCK_ID. */
+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. */
+extern int timer_settime (timer_t __timerid, int __flags,
+ __const struct itimerspec *__restrict __value,
+ struct itimerspec *__restrict __ovalue) __THROW;
+
+/* Get current value of timer TIMERID and store it in VLAUE. */
+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
+
+
+# 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,
+ 3 failed to get file status information,
+ 4 the template file is not a regular file,
+ 5 an error is encountered while reading the template file,
+ 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
+ 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
+
+# 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
-/* IEEE Std 1003.1b-1993. */
-extern int nanosleep __P((__const struct timespec *__rqtp,
- struct timespec *__rmtp));
__END_DECLS
-#endif
+#endif /* <time.h> included. */
+
+#endif /* <time.h> not already included. */