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 41 int 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