minix man page for sem_close

SEM_CLOSE(3)						     Linux Programmer's Manual						      SEM_CLOSE(3)

NAME

       sem_close - close a named semaphore

SYNOPSIS

       #include <semaphore.h>

       int sem_close(sem_t *sem);

       Link with -pthread.

DESCRIPTION

       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.

RETURN VALUE

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

ERRORS

       EINVAL sem is not a valid semaphore.

ATTRIBUTES

       For an explanation of the terms used in this section, see attributes(7).

       +------------+---------------+---------+
       |Interface   | Attribute     | Value   |
       +------------+---------------+---------+
       |sem_close() | Thread safety | MT-Safe |
       +------------+---------------+---------+

CONFORMING TO

       POSIX.1-2001, POSIX.1-2008.

NOTES

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

SEE ALSO

       sem_getvalue(3), sem_open(3), sem_post(3), sem_unlink(3), sem_wait(3), sem_overview(7)

COLOPHON

       This page is part of release 4.15 of the Linux man-pages project.  A description of the project, information about reporting bugs, and  the
       latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.

Linux								    2017-09-15							      SEM_CLOSE(3)