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SEM_UNLINK(3) Linux Programmer's Manual SEM_UNLINK(3)
NAME
sem_unlink - remove a named semaphore
SYNOPSIS
#include <semaphore.h>
int sem_unlink(const char *name);
Link with -pthread.
DESCRIPTION
sem_unlink() removes the named semaphore referred to by name. The semaphore name is
removed immediately. The semaphore is destroyed once all other processes that have the
semaphore open close it.
RETURN VALUE
On success sem_unlink() returns 0; on error, -1 is returned, with errno set to indicate
the error.
ERRORS
EACCES The caller does not have permission to unlink this semaphore.
ENAMETOOLONG
name was too long.
ENOENT There is no semaphore with the given name.
ATTRIBUTES
Multithreading (see pthreads(7))
The sem_unlink() function is thread-safe.
CONFORMING TO
POSIX.1-2001.
SEE ALSO
sem_getvalue(3), sem_open(3), sem_post(3), sem_wait(3), sem_overview(7)
COLOPHON
This page is part of release 3.74 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 http://www.kernel.org/doc/man-pages/.
Linux 2014-02-26 SEM_UNLINK(3)
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