SEM_UNLINK(3) - man page online | library functions

Remove a named semaphore.

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.
ATTRIBUTES For an explanation of the terms used in this section, see attributes(7). ┌─────────────┬───────────────┬─────────┐ │Interface │ Attribute │ Value │ ├─────────────┼───────────────┼─────────┤ │sem_unlink() │ Thread safety │ MT-Safe │ └─────────────┴───────────────┴─────────┘
SEE ALSO sem_getvalue(3), sem_open(3), sem_post(3), sem_wait(3), sem_overview(7)
COLOPHON This page is part of release 4.04 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at
Linux 2015-08-08 SEM_UNLINK(3)
This manual Reference Other manuals
sem_unlink(3) referred by sem_close(3) | sem_open(3) | sem_overview(7)
refer to attributes(7) | sem_getvalue(3) | sem_open(3) | sem_overview(7) | sem_post(3) | sem_wait(3)