Name
sem_unlink - remove a named semaphoreLibrary
POSIX threads library ( libpthread ", " -lpthread )Synopsis
#include <semaphore.h> int sem_unlink(const char * name );
Description
sem_unlink() removes the named semaphore referred to byname. 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 |
| T} | Thread safety | MT-Safe |
Standards
POSIX.1-2008.History
POSIX.1-2001.See Also
- sem_getvalue(3),
- sem_open(3),
- sem_post(3),
- sem_wait(3),
- sem_overview(7)