sem_unlink(3)

NAME

sem_unlink - remove a named semaphore

SYNOPSIS

#include <semaphore.h>
int sem_unlink(const char *name);
Link with -lrt or -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.

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 3.25 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.

Linux 2006-03-25 SEM_UNLINK(3)