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 #include "mt.h"
32 #include <errno.h>
33 #include <unistd.h>
34 #include <xti.h>
35 #include <signal.h>
36 #include <stropts.h>
37 #include "tx.h"
38
39 int
_tx_close(int fd,int api_semantics)40 _tx_close(int fd, int api_semantics)
41 {
42 sigset_t mask;
43 int sv_errno;
44
45 if (_t_checkfd(fd, 0, api_semantics) == NULL)
46 return (-1);
47
48 (void) thr_sigsetmask(SIG_SETMASK, &fillset, &mask);
49 sig_mutex_lock(&_ti_userlock);
50 if (_t_delete_tilink(fd) < 0) {
51 sv_errno = errno;
52 sig_mutex_unlock(&_ti_userlock);
53 (void) thr_sigsetmask(SIG_SETMASK, &mask, NULL);
54 errno = sv_errno;
55 return (-1);
56 }
57 /*
58 * Note: close() needs to be inside the lock. If done
59 * outside, another process may inherit the desriptor
60 * and recreate library level instance structures
61 */
62 (void) close(fd);
63
64 sig_mutex_unlock(&_ti_userlock);
65 (void) thr_sigsetmask(SIG_SETMASK, &mask, NULL);
66 return (0);
67 }
68