1168777Srwatson/*- 2168777Srwatson * Copyright (c) 2006 Robert N. M. Watson 3168777Srwatson * All rights reserved. 4168777Srwatson * 5168777Srwatson * Redistribution and use in source and binary forms, with or without 6168777Srwatson * modification, are permitted provided that the following conditions 7168777Srwatson * are met: 8168777Srwatson * 1. Redistributions of source code must retain the above copyright 9168777Srwatson * notice, this list of conditions and the following disclaimer. 10168777Srwatson * 2. Redistributions in binary form must reproduce the above copyright 11168777Srwatson * notice, this list of conditions and the following disclaimer in the 12168777Srwatson * documentation and/or other materials provided with the distribution. 13168777Srwatson * 14168777Srwatson * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15168777Srwatson * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16168777Srwatson * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17168777Srwatson * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18168777Srwatson * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19168777Srwatson * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20168777Srwatson * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21168777Srwatson * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22168777Srwatson * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23168777Srwatson * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24168777Srwatson * SUCH DAMAGE. 25168777Srwatson * 26185573Srwatson * $P4: //depot/projects/trustedbsd/openbsm/compat/clock_gettime.h#3 $ 27168777Srwatson */ 28168777Srwatson 29168777Srwatson/* 30168777Srwatson * Compatibility routines for clock_gettime(CLOCK_REALTIME, ...) for systems 31168777Srwatson * that don't have it. We don't use clockid_t in order to avoid conflicts 32168777Srwatson * with the native OS if it has one but not clock_gettime(). We also assume 33168777Srwatson * that the sys/time.h include has already happened at this point, so we have 34168777Srwatson * access to gettimeofday(). 35168777Srwatson */ 36168777Srwatson#include <errno.h> 37168777Srwatson 38168777Srwatson#define CLOCK_REALTIME 0x2d4e1588 39168777Srwatson 40168777Srwatsonstatic inline int 41168777Srwatsonclock_gettime(int clock_id, struct timespec *ts) 42168777Srwatson{ 43168777Srwatson struct timeval tv; 44168777Srwatson 45168777Srwatson if (clock_id != CLOCK_REALTIME) { 46168777Srwatson errno = EINVAL; 47168777Srwatson return (-1); 48168777Srwatson } 49168777Srwatson if (gettimeofday(&tv, NULL) < 0) 50168777Srwatson return (-1); 51168777Srwatson ts->tv_sec = tv.tv_sec; 52168777Srwatson ts->tv_nsec = tv.tv_usec * 1000; 53168777Srwatson return (0); 54168777Srwatson} 55