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 3.22 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/.