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 1990 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 /* 30 * Backwards compatible alarm. 31 */ 32 #include <sys/time.h> 33 34 unsigned int 35 alarm(unsigned int secs) 36 { 37 struct itimerval it, oitv; 38 struct itimerval *itp = ⁢ 39 40 timerclear(&itp->it_interval); 41 itp->it_value.tv_sec = secs; 42 itp->it_value.tv_usec = 0; 43 if (setitimer(ITIMER_REAL, itp, &oitv) < 0) 44 return (-1); 45 if (oitv.it_value.tv_usec) 46 oitv.it_value.tv_sec++; 47 return (oitv.it_value.tv_sec); 48 } 49