sched_getcpu(3) — Справочная страница Linux

sched_getcpu(3)         Library Functions Manual         sched_getcpu(3)

ИМЯ

       sched_getcpu - determine CPU on which the calling thread is
       running

БИБЛИОТЕКА

       Standard C library (libc, -lc)

СИНТАКСИС

       #include <sched.h>

       int sched_getcpu(void);

   Feature Test Macro Requirements for glibc (see
   feature_test_macros(7)):

       sched_getcpu():
           Since glibc 2.14:
               _GNU_SOURCE
           Before glibc 2.14:
               _BSD_SOURCE || _SVID_SOURCE
                   /* _GNU_SOURCE also suffices */

ОПИСАНИЕ

       sched_getcpu() returns the number of the CPU on which the calling
       thread is currently executing.

ЗНАЧЕНИЕ, ВОЗВРАЩАЕМОЕ ФУНКЦИЕЙ

       On success, sched_getcpu() returns a nonnegative CPU number.  On
       error, -1 is returned and errno is set to indicate the error.

ОШИБКИ

       ENOSYS This kernel does not implement getcpu(2).

АТРИБУТЫ

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

СТАНДАРТЫ

       GNU.

ИСТОРИЯ

       glibc 2.6.

ПРИМЕЧАНИЯ

       The call

           cpu = sched_getcpu();

       is equivalent to the following getcpu(2) call:

           int c, s;
           s = getcpu(&c, NULL);
           cpu = (s == -1) ? s : c;

СМОТРИТЕ ТАКЖЕ

       getcpu(2), sched(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
       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
       version of the page, or you believe there is a better or more up-
       to-date source for the page, or you have corrections or
       improvements to the information in this COLOPHON (which is not
       part of the original manual page), send a mail to
       man-pages@man7.org

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

Страницы, которые ссылаются на эту страницу: getcpu(2), sched_setaffinity(2), pthread_setaffinity_np(3), sched(7)