1 /*********************************************************************** 2 * * 3 * This software is part of the ast package * 4 * Copyright (c) 1985-2007 AT&T Knowledge Ventures * 5 * and is licensed under the * 6 * Common Public License, Version 1.0 * 7 * by AT&T Knowledge Ventures * 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 30 int 31 tvsettime(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