sem_close(3) — Справочная страница Linux

sem_close(3)            Library Functions Manual            sem_close(3)

НАЗВАНИЕ

       sem_close - close a named semaphore

БИБЛИОТЕКА

       POSIX threads library (libpthread, -lpthread)

СИНТАКСИС

       #include <semaphore.h>

       int sem_close(sem_t *sem);

ОПИСАНИЕ

       sem_close() closes the named semaphore referred to by sem,
       allowing any resources that the system has allocated to the
       calling process for this semaphore to be freed.

ЗНАЧЕНИЕ, ВОЗВРАЩАЕМОЕ ФУНКЦИЕЙ

       On success sem_close() returns 0; on error, -1 is returned, with
       errno set to indicate the error.

ОШИБКИ

       EINVAL sem is not a valid semaphore.

АТРИБУТЫ

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

СТАНДАРТЫ

       POSIX.1-2008.

ИСТОРИЯ

       POSIX.1-2001.

ПРИМЕЧАНИЯ

       All open named semaphores are automatically closed on process
       termination, or upon execve(2).

СМОТРИТЕ ТАКЖЕ

       sem_getvalue(3), sem_open(3), sem_post(3), sem_unlink(3),
       sem_wait(3), sem_overview(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⟩.
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       man-pages@man7.org

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

Страницы, которые ссылаются на эту страницу: sem_open(3), sem_overview(7)