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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | ATTRIBUTES | CONFORMING TO | SEE ALSO | COLOPHON |
SEM_UNLINK(3) Linux Programmer's Manual SEM_UNLINK(3)
sem_unlink - remove a named semaphore
#include <semaphore.h>
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.
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.
For an explanation of the terms used in this section, see
attributes(7).
┌─────────────┬───────────────┬─────────┐
│Interface │ Attribute │ Value │
├─────────────┼───────────────┼─────────┤
│sem_unlink() │ Thread safety │ MT-Safe │
└─────────────┴───────────────┴─────────┘
POSIX.1-2001, POSIX.1-2008.
sem_getvalue(3), sem_open(3), sem_post(3), sem_wait(3),
sem_overview(7)
This page is part of release 4.12 of the Linux man-pages project. A
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latest version of this page, can be found at
https://www.kernel.org/doc/man-pages/.
Linux 2015-08-08 SEM_UNLINK(3)
Pages that refer to this page: sem_close(3), sem_open(3), sem_overview(7)