NAME

       sem_unlink - remove a named semaphore

LIBRARY

       POSIX threads library (libpthread, -lpthread)

SYNOPSIS

       #include <semaphore.h>

       int sem_unlink(const char *name);

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

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

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

STANDARDS

       POSIX.1-2008.

HISTORY

       POSIX.1-2001.

SEE ALSO

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