1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22
23/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
24/*	  All Rights Reserved  	*/
25
26/*
27 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
28 * Use is subject to license terms.
29 */
30
31#pragma ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 1.5 */
32
33#include "mt.h"
34#include <errno.h>
35#include <unistd.h>
36#include <xti.h>
37#include <signal.h>
38#include <stropts.h>
39#include "tx.h"
40
41int
42_tx_close(int fd, int api_semantics)
43{
44	sigset_t mask;
45	int sv_errno;
46
47	if (_t_checkfd(fd, 0, api_semantics) == NULL)
48		return (-1);
49
50	(void) thr_sigsetmask(SIG_SETMASK, &fillset, &mask);
51	sig_mutex_lock(&_ti_userlock);
52	if (_t_delete_tilink(fd) < 0) {
53		sv_errno = errno;
54		sig_mutex_unlock(&_ti_userlock);
55		(void) thr_sigsetmask(SIG_SETMASK, &mask, NULL);
56		errno = sv_errno;
57		return (-1);
58	}
59	/*
60	 * Note: close() needs to be inside the lock. If done
61	 * outside, another process may inherit the desriptor
62	 * and recreate library level instance structures
63	 */
64	(void) close(fd);
65
66	sig_mutex_unlock(&_ti_userlock);
67	(void) thr_sigsetmask(SIG_SETMASK, &mask, NULL);
68	return (0);
69}
70