Rev all the header files to sync things with glibc 2.2.4

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.  */