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.
The caller does not have permission to unlink this semaphore.
name
was too long.
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)
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