diff options
Diffstat (limited to 'time/time.h')
| -rw-r--r-- | time/time.h | 237 |
1 files changed, 59 insertions, 178 deletions
diff --git a/time/time.h b/time/time.h index cc93917b82..c38fac7ff8 100644 --- a/time/time.h +++ b/time/time.h @@ -20,168 +20,52 @@ */ #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. */ -# 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> - -__BEGIN_NAMESPACE_STD -/* Returned by `clock'. */ -typedef __clock_t clock_t; -__END_NAMESPACE_STD -#if defined __USE_XOPEN || defined __USE_POSIX -__USING_NAMESPACE_STD(clock_t) -#endif - -#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> - -__BEGIN_NAMESPACE_STD -/* Returned by `time'. */ -typedef __time_t time_t; -__END_NAMESPACE_STD -#ifdef __USE_POSIX -__USING_NAMESPACE_STD(time_t) -#endif - -#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 + ticks per second, and possibly a number of other constants. */ +#include <bits/time.h> +/* 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 __timespec_defined \ - && ((defined _TIME_H \ - && (defined __USE_POSIX199309 \ - || defined __USE_ISOC11)) \ - || defined __need_timespec)) -# define __timespec_defined 1 - -# include <bits/types.h> /* This defines __time_t for us. */ - -/* POSIX.1b structure for a time value. This is like a `struct timeval' but - has nanoseconds instead of microseconds. */ -struct timespec - { - __time_t tv_sec; /* Seconds. */ - __syscall_slong_t tv_nsec; /* Nanoseconds. */ - }; - -#endif /* timespec not defined and <time.h> or need timespec. */ -#undef __need_timespec - - -#ifdef _TIME_H -__BEGIN_NAMESPACE_STD -/* 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_MISC - 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 -}; -__END_NAMESPACE_STD -#if defined __USE_XOPEN || defined __USE_POSIX -__USING_NAMESPACE_STD(tm) +#if defined __USE_POSIX199309 || defined __USE_ISOC11 +# include <bits/types/struct_timespec.h> #endif - -# 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. */ +#ifdef __USE_POSIX199309 +# include <bits/types/clockid_t.h> +# include <bits/types/timer_t.h> +# include <bits/types/struct_itimerspec.h> struct sigevent; +#endif -# endif /* POSIX.1b */ - -# ifdef __USE_XOPEN2K -# ifndef __pid_t_defined +#ifdef __USE_XOPEN2K +# ifndef __pid_t_defined typedef __pid_t pid_t; -# define __pid_t_defined -# endif +# define __pid_t_defined # endif +#endif +#ifdef __USE_XOPEN2K8 +# include <xlocale.h> +#endif -# ifdef __USE_ISOC11 +#ifdef __USE_ISOC11 /* Time base values for timespec_get. */ # define TIME_UTC 1 -# endif +#endif +__BEGIN_DECLS __BEGIN_NAMESPACE_STD /* Time used by the program so far (user time + system time). @@ -207,30 +91,29 @@ extern size_t strftime (char *__restrict __s, size_t __maxsize, 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 *__restrict __s, const char *__restrict __fmt, struct tm *__tp) __THROW; -# endif +#endif -# ifdef __USE_XOPEN2K8 +#ifdef __USE_XOPEN2K8 /* Similar to the two functions above but take the information from the provided locale and not the global locale. */ -# include <xlocale.h> 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 +#endif -# ifdef __USE_GNU +#ifdef __USE_GNU extern char *strptime_l (const char *__restrict __s, const char *__restrict __fmt, struct tm *__tp, __locale_t __loc) __THROW; -# endif +#endif __BEGIN_NAMESPACE_STD @@ -243,7 +126,7 @@ extern struct tm *gmtime (const time_t *__timer) __THROW; extern struct tm *localtime (const time_t *__timer) __THROW; __END_NAMESPACE_STD -# ifdef __USE_POSIX +#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, @@ -253,7 +136,7 @@ extern struct tm *gmtime_r (const time_t *__restrict __timer, using *TP to store the result. */ extern struct tm *localtime_r (const time_t *__restrict __timer, struct tm *__restrict __tp) __THROW; -# endif /* POSIX */ +#endif /* POSIX */ __BEGIN_NAMESPACE_STD /* Return a string of the form "Day Mon dd hh:mm:ss yyyy\n" @@ -264,7 +147,7 @@ extern char *asctime (const struct tm *__tp) __THROW; extern char *ctime (const time_t *__timer) __THROW; __END_NAMESPACE_STD -# ifdef __USE_POSIX +#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" @@ -275,7 +158,7 @@ extern char *asctime_r (const struct tm *__restrict __tp, /* Equivalent to `asctime_r (localtime_r (timer, *TMP*), buf)'. */ extern char *ctime_r (const time_t *__restrict __timer, char *__restrict __buf) __THROW; -# endif /* POSIX */ +#endif /* POSIX */ /* Defined in localtime.c. */ @@ -284,34 +167,34 @@ extern int __daylight; /* If daylight-saving time is ever in use. */ 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_MISC || defined __USE_XOPEN +#if defined __USE_MISC || defined __USE_XOPEN extern int daylight; extern long int timezone; -# endif +#endif -# ifdef __USE_MISC +#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 +#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. */ @@ -323,10 +206,10 @@ extern time_t timelocal (struct tm *__tp) __THROW; /* Return the number of days in YEAR. */ extern int dysize (int __year) __THROW __attribute__ ((__const__)); -# endif +#endif -# ifdef __USE_POSIX199309 +#ifdef __USE_POSIX199309 /* Pause execution for a number of nanoseconds. This function is a cancellation point and therefore not marked with @@ -345,7 +228,7 @@ extern int clock_gettime (clockid_t __clock_id, struct timespec *__tp) __THROW; 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 @@ -356,7 +239,7 @@ extern int clock_nanosleep (clockid_t __clock_id, int __flags, /* Return clock ID for CPU-time clock. */ extern int clock_getcpuclockid (pid_t __pid, clockid_t *__clock_id) __THROW; -# endif +# endif /* Create new per-process timer using CLOCK_ID. */ @@ -378,17 +261,17 @@ extern int timer_gettime (timer_t __timerid, struct itimerspec *__value) /* Get expiration overrun for timer TIMERID. */ extern int timer_getoverrun (timer_t __timerid) __THROW; -# endif +#endif -# ifdef __USE_ISOC11 +#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 +#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, @@ -410,9 +293,9 @@ extern int getdate_err; This function is a possible cancellation point and therefore not marked with __THROW. */ extern struct tm *getdate (const char *__string); -# endif +#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 @@ -425,10 +308,8 @@ extern struct tm *getdate (const char *__string); therefore not marked with __THROW. */ extern int getdate_r (const char *__restrict __string, struct tm *__restrict __resbufp); -# endif +#endif __END_DECLS -#endif /* <time.h> included. */ - -#endif /* <time.h> not already included. */ +#endif /* time.h. */ |