1/*********************************************************************** 2* * 3* This software is part of the ast package * 4* Copyright (c) 1985-2010 AT&T Intellectual Property * 5* and is licensed under the * 6* Common Public License, Version 1.0 * 7* by AT&T Intellectual Property * 8* * 9* A copy of the License is available at * 10* http://www.opensource.org/licenses/cpl1.0.txt * 11* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 12* * 13* Information and Software Systems Research * 14* AT&T Research * 15* Florham Park NJ * 16* * 17* Glenn Fowler <gsf@research.att.com> * 18* David Korn <dgk@research.att.com> * 19* Phong Vo <kpv@research.att.com> * 20* * 21***********************************************************************/ 22#pragma prototyped 23 24#include <tv.h> 25#include <tm.h> 26#include <errno.h> 27 28#include "FEATURE/tvlib" 29 30int 31tvsettime(const Tv_t* tv) 32{ 33 34#if _lib_clock_settime && defined(CLOCK_REALTIME) 35 36 struct timespec s; 37 38 s.tv_sec = tv->tv_sec; 39 s.tv_nsec = tv->tv_nsec; 40 return clock_settime(CLOCK_REALTIME, &s); 41 42#else 43 44#if defined(tmsettimeofday) 45 46 struct timeval v; 47 48 v.tv_sec = tv->tv_sec; 49 v.tv_usec = tv->tv_nsec / 1000; 50 return tmsettimeofday(&v); 51 52#else 53 54#if _lib_stime 55 56 static time_t s; 57 58 s = tv->tv_sec + (tv->tv_nsec != 0); 59 return stime(s); 60 61#else 62 63 errno = EPERM; 64 return -1; 65 66#endif 67 68#endif 69 70#endif 71 72} 73