sem_unlink - remove a named semaphore
int sem_unlink(const char *name);
Link with -pthread.
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.
On success sem_unlink() returns 0; on error, -1 is returned, with
errno set to indicate the error.
- The caller does not have permission to unlink this semaphore.
- name was too long.
- There is no semaphore with the given name.
For an explanation of the terms used in this section, see attributes(7).
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