linux 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 -lrt or -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.

CONFORMING TO
       POSIX.1-2001.

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 3.27 of the Linux man-pages project.  A description of the project, and information about reporting bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.

Linux								    2006-03-25							      SEM_CLOSE(3)