sem_unlink(3) — Linux manual page

sem_unlink(3)           Library Functions Manual           sem_unlink(3)

NAME         top

       sem_unlink - remove a named semaphore

LIBRARY         top

       POSIX threads library (libpthread, -lpthread)

SYNOPSIS         top

       #include <semaphore.h>

       int sem_unlink(const char *name);

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 │
       └──────────────────────────────────────┴───────────────┴─────────┘

STANDARDS         top

       POSIX.1-2008.

HISTORY         top

       POSIX.1-2001.

SEE ALSO         top

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

Linux man-pages 6.04           2023-03-30                  sem_unlink(3)

Pages that refer to this page: sem_close(3),  sem_open(3),  sem_overview(7)

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