mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-10 07:10:06 +00:00
47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
/* Copyright (C) 1994, 1995 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public License as
|
|
published by the Free Software Foundation; either version 2 of the
|
|
License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If
|
|
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
|
Cambridge, MA 02139, USA. */
|
|
|
|
#include <hurd/fd.h>
|
|
|
|
error_t
|
|
_hurd_fd_close (struct hurd_fd *fd)
|
|
{
|
|
error_t err;
|
|
|
|
HURD_CRITICAL_BEGIN;
|
|
|
|
__spin_lock (&fd->port.lock);
|
|
if (fd->port.port == MACH_PORT_NULL)
|
|
{
|
|
__spin_unlock (&fd->port.lock);
|
|
err = EBADF;
|
|
}
|
|
else
|
|
{
|
|
/* Clear the descriptor's port cells.
|
|
This deallocates the ports if noone else is still using them. */
|
|
_hurd_port_set (&fd->ctty, MACH_PORT_NULL);
|
|
_hurd_port_locked_set (&fd->port, MACH_PORT_NULL);
|
|
err = 0;
|
|
}
|
|
|
|
HURD_CRITICAL_END;
|
|
|
|
return err;
|
|
}
|