1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2018-2022 Intel Corporation. 5 * Copyright (c) 1982, 1986, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * $FreeBSD$ 33 */ 34 35 #ifndef _MACROS_H_ 36 #define _MACROS_H_ 37 38 #undef __CONCAT 39 40 #define _CONCAT_(a, b) a ## b 41 #define __CONCAT(a, b) _CONCAT_(a, b) 42 43 #define KB (1024UL) 44 #define MB (1024 * 1024UL) 45 #define GB (1024 * 1024 * 1024UL) 46 47 /* Operations on timespecs */ 48 #define timespecclear(tvp) ((tvp)->tv_sec = (tvp)->tv_nsec = 0) 49 #define timespecisset(tvp) ((tvp)->tv_sec || (tvp)->tv_nsec) 50 #define timespeccmp(tvp, uvp, cmp) \ 51 (((tvp)->tv_sec == (uvp)->tv_sec) ? \ 52 ((tvp)->tv_nsec cmp (uvp)->tv_nsec) : \ 53 ((tvp)->tv_sec cmp (uvp)->tv_sec)) 54 #define timespecadd(vvp, uvp) \ 55 do { \ 56 (vvp)->tv_sec += (uvp)->tv_sec; \ 57 (vvp)->tv_nsec += (uvp)->tv_nsec; \ 58 if ((vvp)->tv_nsec >= 1000000000) { \ 59 (vvp)->tv_sec++; \ 60 (vvp)->tv_nsec -= 1000000000; \ 61 } \ 62 } while (0) 63 #define timespecsub(vvp, uvp) \ 64 do { \ 65 (vvp)->tv_sec -= (uvp)->tv_sec; \ 66 (vvp)->tv_nsec -= (uvp)->tv_nsec; \ 67 if ((vvp)->tv_nsec < 0) { \ 68 (vvp)->tv_sec--; \ 69 (vvp)->tv_nsec += 1000000000; \ 70 } \ 71 } while (0) 72 73 #endif 74