sem_unlink(3) — Linux manual page

sem_unlink(3)           Library Functions Manual           sem_unlink(3)

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)

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Linux man-pages 6.9.1          2024-05-02                  sem_unlink(3)

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

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