sleep(3) — Справочная страница Linux

sleep(3)                Library Functions Manual                sleep(3)

ИМЯ

       sleep - sleep for a specified number of seconds

БИБЛИОТЕКА

       Standard C library (libc, -lc)

СИНТАКСИС

       #include <unistd.h>

       unsigned int sleep(unsigned int seconds);

ОПИСАНИЕ

       sleep() causes the calling thread to sleep either until the
       number of real-time seconds specified in seconds have elapsed or
       until a signal arrives which is not ignored.

ЗНАЧЕНИЕ, ВОЗВРАЩАЕМОЕ ФУНКЦИЕЙ

       Zero if the requested time has elapsed, or the number of seconds
       left to sleep, if the call was interrupted by a signal handler.

АТРИБУТЫ

       For an explanation of the terms used in this section, see
       attributes(7).
       ┌─────────────────┬───────────────┬─────────────────────────────┐
       │ Interface       │ Attribute     │ Value                       │
       ├─────────────────┼───────────────┼─────────────────────────────┤
       │ sleep()         │ Thread safety │ MT-Unsafe sig:SIGCHLD/linux │
       └─────────────────┴───────────────┴─────────────────────────────┘

ВЕРСИИ

       On Linux, sleep() is implemented via nanosleep(2).  See the
       nanosleep(2) man page for a discussion of the clock used.

       On some systems, sleep() may be implemented using alarm(2) and
       SIGALRM (POSIX.1 permits this); mixing calls to alarm(2) and
       sleep() is a bad idea.

СТАНДАРТЫ

       POSIX.1-2008.

ИСТОРИЯ

       POSIX.1-2001.

ПРЕДУПРЕЖДЕНИЯ

       Using longjmp(3) from a signal handler or modifying the handling
       of SIGALRM while sleeping will cause undefined results.

СМОТРИТЕ ТАКЖЕ

       sleep(1), alarm(2), nanosleep(2), signal(2), signal(7)

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
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       ⟨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
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       2024-06-26.  If you discover any rendering problems in this HTML
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       part of the original manual page), send a mail to
       man-pages@man7.org

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

Страницы, которые ссылаются на эту страницу: sleep(1), alarm(2), clock_nanosleep(2), getitimer(2), nanosleep(2), ualarm(3), usleep(3), signal(7), signal-safety(7), time(7)