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Options · 3
| 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. |
NAME
sem_unlink - remove a named semaphore
LIBRARY
POSIX threads library (libpthread, -lpthread)
SYNOPSIS
bash
#include <semaphore.h>bash
int sem_unlink(const char *\nname\n);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)