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sem_unlink(3) [osf1 man page]

sem_unlink(3)						     Library Functions Manual						     sem_unlink(3)

NAME
sem_unlink - Removes the specified named semaphore (P1003.1b) LIBRARY
Realtime Library (librt.so, librt.a) SYNOPSIS
#include <semaphore.h> int sem_unlink ( const char *name) ; PARAMETERS
*name Specifies the name of the semaphore to remove. DESCRIPTION
The sem_unlink function removes a semaphore named by the string name. If the semaphore is referenced by other processes, sem_unlink does not change the state of the semaphore. If other processes have the semaphore open when sem_unlink is called, the semaphore is not destroyed until all references to the semaphore have been destroyed by calls to sem_close. The sem_unlink function returns immediately; it does not wait until all references have been destroyed. Calls to sem_open to recreate or reconnect to the semaphore refer to a new semaphore after sem_unlink is called. RETURN VALUES
On a successful call, a value of 0 (zero) is returned. Otherwise, a value of -1 is returned and errno is set to indicate that an error occurred. ERRORS
The sem_unlink function fails under the following conditions: [EACCES] Permission is denied to unlink the named semaphore. [ENAMETOOLONG] The length of the name string exceeds {NAME_MAX} while {_POSIX_NO_TRUNC} is in effect. [ENOENT] The named semaphore does not exist. RELATED INFORMATION
Functions: sem_close(3), sem_open(3) Guide to Realtime Programming delim off sem_unlink(3)

Check Out this Related Man Page

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

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. CONFORMING TO
POSIX.1-2001. SEE ALSO
sem_getvalue(3), sem_open(3), sem_post(3), sem_wait(3), sem_overview(7) COLOPHON
This page is part of release 3.44 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. Linux 2012-05-13 SEM_UNLINK(3)

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