-/* Copyright (C) 1991,92,93,94,95,96,97,98,99 Free Software Foundation, Inc.
+/* Copyright (C) 1991-1999, 2000 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
Boston, MA 02111-1307, USA. */
/*
- * ISO C Standard: 4.12 DATE and TIME <time.h>
+ * ISO C99 Standard: 7.23 Date and time <time.h>
*/
#ifndef _TIME_H
# define __need_size_t
# define __need_NULL
# include <stddef.h>
-#endif /* <time.h> included. */
-
-
-
-#ifdef _TIME_H
/* This defines CLOCKS_PER_SEC, which is the number of processor clock
ticks per second. */
#endif /* <time.h> included. */
-
#if !defined __clock_t_defined && (defined _TIME_H || defined __need_clock_t)
# define __clock_t_defined 1
#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>
+
+/* 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.4 structure for a time value. This is like a `struct timeval' but
+/* POSIX.1b structure for a time value. This is like a `struct timeval' but
has nanoseconds instead of microseconds. */
struct timespec
{
};
+#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 __P ((void));
+extern clock_t clock (void) __THROW;
/* Return the current time and put it in *TIMER if TIMER is not NULL. */
-extern time_t time __P ((time_t *__timer));
+extern time_t time (time_t *__timer) __THROW;
/* Return the difference between TIME1 and TIME0. */
-extern double difftime __P ((time_t __time1, time_t __time0))
- __attribute__ ((__const__));
+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 __P ((struct tm *__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 __P ((char *__restrict __s, size_t __maxsize,
- __const char *__restrict __format,
- __const struct tm *__restrict __tp));
+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 __P ((__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
/* Return the `struct tm' representation of *TIMER
in Universal Coordinated Time (aka Greenwich Mean Time). */
-extern struct tm *gmtime __P ((__const time_t *__timer));
+extern struct tm *gmtime (__const time_t *__timer) __THROW;
/* Return the `struct tm' representation
of *TIMER in the local timezone. */
-extern struct tm *localtime __P ((__const time_t *__timer));
+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 __P ((__const time_t *__restrict __timer,
- struct tm *__restrict __tp));
-extern struct tm *gmtime_r __P ((__const time_t *__restrict __timer,
- struct tm *__restrict __tp));
+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 __P ((__const time_t *__restrict __timer,
- struct tm *__restrict __tp));
+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 __P ((__const struct tm *__tp));
+extern char *asctime (__const struct tm *__tp) __THROW;
/* Equivalent to `asctime (localtime (timer))'. */
-extern char *ctime __P ((__const time_t *__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 __P ((__const struct tm *__restrict __tp,
- char *__restrict __buf));
+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 __P ((__const time_t *__restrict __timer,
- char *__restrict __buf));
+extern char *ctime_r (__const time_t *__restrict __timer,
+ char *__restrict __buf) __THROW;
# endif /* POSIX or misc */
/* Set time conversion information from the TZ environment variable.
If TZ is not defined, a locale-dependent default is used. */
-extern void tzset __P ((void));
+extern void tzset (void) __THROW;
# endif
# if defined __USE_SVID || defined __USE_XOPEN
# ifdef __USE_SVID
/* Set the system time to *WHEN.
This call is restricted to the superuser. */
-extern int stime __P ((__const time_t *__when));
+extern int stime (__const time_t *__when) __THROW;
# endif
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 __P ((int __year));
+extern int dysize (int __year) __THROW __attribute__ ((__const__));
# endif
# ifdef __USE_POSIX199309
/* Pause execution for a number of nanoseconds. */
-extern int nanosleep __P ((__const struct timespec *__requested_time,
- struct timespec *__remaining));
+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
+
+
+/* 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
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 __P ((__const char *__string));
+extern struct tm *getdate (__const char *__string) __THROW;
# endif
# ifdef __USE_GNU
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 __P ((__const char *__restrict __string,
- struct tm *__restrict __resbufp));
+extern int getdate_r (__const char *__restrict __string,
+ struct tm *__restrict __resbufp) __THROW;
# endif
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