NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | ATTRIBUTES | CONFORMING TO | SEE ALSO | COLOPHON

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

NAME         top

       sem_unlink - remove a named semaphore

SYNOPSIS         top

       #include <semaphore.h>

       int sem_unlink(const char *name);

       Link with -pthread.

DESCRIPTION         top

       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         top

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

ERRORS         top

       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         top

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

       ┌─────────────┬───────────────┬─────────┐
       │Interface    Attribute     Value   │
       ├─────────────┼───────────────┼─────────┤
       │sem_unlink() │ Thread safety │ MT-Safe │
       └─────────────┴───────────────┴─────────┘

CONFORMING TO         top

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

SEE ALSO         top

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

COLOPHON         top

       This page is part of release 4.08 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                            2015-08-08                    SEM_UNLINK(3)