t_close.c revision 61961e0f20c7637a3846bb39786bb9dffa91dfb9
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.5 */
#include "mt.h"
#include <errno.h>
#include <unistd.h>
#include <xti.h>
#include <signal.h>
#include <stropts.h>
#include "tx.h"
int
_tx_close(int fd, int api_semantics)
{
sigset_t mask;
int sv_errno;
if (_t_checkfd(fd, 0, api_semantics) == NULL)
return (-1);
(void) thr_sigsetmask(SIG_SETMASK, &fillset, &mask);
sig_mutex_lock(&_ti_userlock);
if (_t_delete_tilink(fd) < 0) {
sv_errno = errno;
sig_mutex_unlock(&_ti_userlock);
(void) thr_sigsetmask(SIG_SETMASK, &mask, NULL);
errno = sv_errno;
return (-1);
}
/*
* Note: close() needs to be inside the lock. If done
* outside, another process may inherit the desriptor
* and recreate library level instance structures
*/
(void) close(fd);
sig_mutex_unlock(&_ti_userlock);
(void) thr_sigsetmask(SIG_SETMASK, &mask, NULL);
return (0);
}