xref: /onnv-gate/usr/src/lib/libast/common/tm/tvgettime.c (revision 12068:08a39a083754)
14887Schin /***********************************************************************
24887Schin *                                                                      *
34887Schin *               This software is part of the ast package               *
4*12068SRoger.Faulkner@Oracle.COM *          Copyright (c) 1985-2010 AT&T Intellectual Property          *
54887Schin *                      and is licensed under the                       *
64887Schin *                  Common Public License, Version 1.0                  *
78462SApril.Chin@Sun.COM *                    by AT&T Intellectual Property                     *
84887Schin *                                                                      *
94887Schin *                A copy of the License is available at                 *
104887Schin *            http://www.opensource.org/licenses/cpl1.0.txt             *
114887Schin *         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
124887Schin *                                                                      *
134887Schin *              Information and Software Systems Research               *
144887Schin *                            AT&T Research                             *
154887Schin *                           Florham Park NJ                            *
164887Schin *                                                                      *
174887Schin *                 Glenn Fowler <gsf@research.att.com>                  *
184887Schin *                  David Korn <dgk@research.att.com>                   *
194887Schin *                   Phong Vo <kpv@research.att.com>                    *
204887Schin *                                                                      *
214887Schin ***********************************************************************/
224887Schin #pragma prototyped
234887Schin 
244887Schin #include <tv.h>
254887Schin #include <tm.h>
264887Schin 
274887Schin #include "FEATURE/tvlib"
284887Schin 
294887Schin int
tvgettime(Tv_t * tv)304887Schin tvgettime(Tv_t* tv)
314887Schin {
324887Schin 
334887Schin #if _lib_clock_gettime && defined(CLOCK_REALTIME)
344887Schin 
354887Schin 	struct timespec			s;
364887Schin 
374887Schin 	clock_gettime(CLOCK_REALTIME, &s);
384887Schin 	tv->tv_sec = s.tv_sec;
394887Schin 	tv->tv_nsec = s.tv_nsec;
404887Schin 
414887Schin #else
424887Schin 
434887Schin #if defined(tmgettimeofday)
444887Schin 
454887Schin 	struct timeval			v;
464887Schin 
474887Schin 	tmgettimeofday(&v);
484887Schin 	tv->tv_sec = v.tv_sec;
494887Schin 	tv->tv_nsec = v.tv_usec * 1000;
504887Schin 
514887Schin #else
524887Schin 
534887Schin 	static time_t			s;
544887Schin 	static uint32_t			n;
554887Schin 
564887Schin 	if ((tv->tv_sec = time(NiL)) != s)
574887Schin 	{
584887Schin 		s = tv->tv_sec;
594887Schin 		n = 0;
604887Schin 	}
614887Schin 	else
624887Schin 		n += 1000;
634887Schin 	tv->tv_nsec = n;
644887Schin 
654887Schin #endif
664887Schin 
674887Schin #endif
684887Schin 
694887Schin 	return 0;
704887Schin }
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