SEM_CLOSE
Section: Linux Programmer's Manual (3)
Updated: 2012-05-13
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NAME
sem_close - close a named semaphore
SYNOPSIS
#include <semaphore.h>
int sem_close(sem_t *sem);
Link with -pthread.
DESCRIPTION
sem_close()
closes the named semaphore referred to by
sem,
allowing any resources that the system has allocated to
the calling process for this semaphore to be freed.
RETURN VALUE
On success
sem_close()
returns 0; on error, -1 is returned, with
errno
set to indicate the error.
ERRORS
- EINVAL
-
sem
is not a valid semaphore.
CONFORMING TO
POSIX.1-2001.
NOTES
All open named semaphores are automatically closed on process
termination, or upon
execve(2).
SEE ALSO
sem_getvalue(3),
sem_open(3),
sem_post(3),
sem_unlink(3),
sem_wait(3),
sem_overview(7)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- ERRORS
-
- CONFORMING TO
-
- NOTES
-
- SEE ALSO
-
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