1 /* 2 * Copyright 2006, Haiku, Inc. All Rights Reserved. 3 * Distributed under the terms of the MIT License. 4 */ 5 /* 6 * Copyright (c) 1982, 1986, 1993 7 * The Regents of the University of California. All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 #ifndef _BSD_SYS_TIME_H_ 34 #define _BSD_SYS_TIME_H_ 35 36 37 #include_next <sys/time.h> 38 39 40 #define timerclear(tv) \ 41 ((tv)->tv_sec = (tv)->tv_usec = 0) 42 #define timerisset(tv) \ 43 ((tv)->tv_sec || (tv)->tv_usec) 44 #define timercmp(tv, uv, cmp) \ 45 (((tvp)->tv_sec == (uvp)->tv_sec) ? \ 46 ((tvp)->tv_usec cmp (uvp)->tv_usec) : \ 47 ((tvp)->tv_sec cmp (uvp)->tv_sec)) 48 #define timeradd(tvp, uvp, vvp) \ 49 do { \ 50 (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec; \ 51 (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec; \ 52 if ((vvp)->tv_usec >= 1000000) { \ 53 (vvp)->tv_sec++; \ 54 (vvp)->tv_usec -= 1000000; \ 55 } \ 56 } while (0) 57 #define timersub(tvp, uvp, vvp) \ 58 do { \ 59 (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \ 60 (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \ 61 if ((vvp)->tv_usec < 0) { \ 62 (vvp)->tv_sec--; \ 63 (vvp)->tv_usec += 1000000; \ 64 } \ 65 } while (0) 66 67 #endif /* _BSD_SYS_TIME_H_ */ 68