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sem_unlink(2) [osx man page]

SEM_UNLINK(2)						      BSD System Calls Manual						     SEM_UNLINK(2)

sem_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 semaphore, 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. ERRORS
sem_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 ALSO
sem_close(2), sem_open(2), semctl(2), semget(2), semop(2) HISTORY
sem_unlink() is specified in the POSIX Realtime Extension (1003.1b-1993/1003.1i-1995). Darwin June 8, 2000 Darwin

Check Out this Related Man Page

SEM_UNLINK(3)						     Linux Programmer's Manual						     SEM_UNLINK(3)

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. CONFORMING TO
sem_getvalue(3), sem_open(3), sem_post(3), sem_wait(3), sem_overview(7) COLOPHON
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at Linux 2012-05-13 SEM_UNLINK(3)
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