SEM_UNLINK(2) BSD System Calls Manual SEM_UNLINK(2)NAMEsem_unlink — remove a named semaphore
SYNOPSIS
#include <semaphore.h>
int
sem_unlink(const char *name);
DESCRIPTION
The named semaphore named name is removed. If the semaphore is in use by
other processes, then name is immediately disassociated with the sema‐
phore, but the semaphore itself will not be removed until all references
to it have been closed. Subsequent calls to sem_open() using name will
refer to or create a new semaphore named name.
If successful, sem_unlink() will return 0. Otherwise, -1 is returned and
errno is set, and the state of the semaphore is unchanged.
ERRORSsem_unlink() succeeds unless:
[EACCES] Permission is denied to be remove the semaphore.
[ENAMETOOLONG] name exceeded SEM_NAME_LEN characters.
[ENOENT] The named semaphore does not exist.
SEE ALSOsem_close(2), sem_open(2), semctl(2), semget(2), semop(2)HISTORYsem_unlink() is specified in the POSIX Realtime Extension
(1003.1b-1993/1003.1i-1995).
Darwin June 8, 2000 Darwin