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 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