Name
sem_close — close a named semaphore
Synopsis
#include <semaphore.h>
int
sem_close( |
sem_t * |
sem) ; |
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.
NOTES
All open named semaphores are automatically closed on
process termination, or upon execve(2).
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.
SEE ALSO
sem_getvalue(3), sem_open(3), sem_post(3), sem_unlink(3), sem_wait(3), sem_overview(7)
t
Copyright (C) 2006 Michael Kerrisk <mtk-manpages@gmx.net>
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