NAME¶

sem_unlink - remove a named semaphore

SYNOPSIS¶

#include <semaphore.h>

int sem_unlink(const char *name);

Link with -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.

ATTRIBUTES¶

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

CONFORMING TO¶

POSIX.1-2001, POSIX.1-2008.

SEE ALSO¶

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

COLOPHON¶

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