ftime(3) — Справочная страница Linux

ftime(3)                Library Functions Manual                ftime(3)

ИМЯ

       ftime - return date and time

БИБЛИОТЕКА

       Standard C library (libc, -lc)

СИНТАКСИС

       #include <sys/timeb.h>

       int ftime(struct timeb *tp);

ОПИСАНИЕ

       NOTE: This function is no longer provided by the GNU C library.
       Use clock_gettime(2) instead.

       This function returns the current time as seconds and
       milliseconds since the Epoch, 1970-01-01 00:00:00 +0000 (UTC).
       The time is returned in tp, which is declared as follows:

           struct timeb {
               time_t         time;
               unsigned short millitm;
               short          timezone;
               short          dstflag;
           };

       Here time is the number of seconds since the Epoch, and millitm
       is the number of milliseconds since time seconds since the Epoch.
       The timezone field is the local timezone measured in minutes of
       time west of Greenwich (with a negative value indicating minutes
       east of Greenwich).  The dstflag field is a flag that, if
       nonzero, indicates that Daylight Saving time applies locally
       during the appropriate part of the year.

       POSIX.1-2001 says that the contents of the timezone and dstflag
       fields are unspecified; avoid relying on them.

ЗНАЧЕНИЕ, ВОЗВРАЩАЕМОЕ ФУНКЦИЕЙ

       This function always returns 0.  (POSIX.1-2001 specifies, and
       some systems document, a -1 error return.)

АТРИБУТЫ

       For an explanation of the terms used in this section, see
       attributes(7).
       ┌─────────────────────────────────────┬───────────────┬─────────┐
       │ Interface                           │ Attribute     │ Value   │
       ├─────────────────────────────────────┼───────────────┼─────────┤
       │ ftime()                             │ Thread safety │ MT-Safe │
       └─────────────────────────────────────┴───────────────┴─────────┘

СТАНДАРТЫ

       None.

ИСТОРИЯ

       Removed in glibc 2.33.  4.2BSD, POSIX.1-2001.  Removed in
       POSIX.1-2008.

       This function is obsolete.  Don't use it.  If the time in seconds
       suffices, time(2) can be used; gettimeofday(2) gives
       microseconds; clock_gettime(2) gives nanoseconds but is not as
       widely available.

ОШИБКИ

       Early glibc2 is buggy and returns 0 in the millitm field; glibc
       2.1.1 is correct again.

СМОТРИТЕ ТАКЖЕ

       gettimeofday(2), time(2)

КОЛОФОН

       This page is part of the man-pages (Linux kernel and C library
       user-space interface documentation) project.  Information about
       the project can be found at 
       ⟨https://www.kernel.org/doc/man-pages/⟩.  If you have a bug report
       for this manual page, see
       ⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.
       This page was obtained from the tarball man-pages-6.9.1.tar.gz
       fetched from
       ⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on
       2024-06-26.  If you discover any rendering problems in this HTML
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       man-pages@man7.org

Linux man-pages 6.9.1          2024-05-02                       ftime(3)

Страницы, которые ссылаются на эту страницу: clock_getres(2), gettimeofday(2), syscalls(2), time(2), unimplemented(2)