90 lines
2.2 KiB
C
90 lines
2.2 KiB
C
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/* @(#)setnstimeofday.c 1.1 13/09/30 Copyright 2007-2013 J. Schilling */
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#include <schily/mconfig.h>
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#ifndef lint
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static UConst char sccsid[] =
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"@(#)setnstimeofday.c 1.1 13/09/30 Copyright 2007-2013 J. Schilling";
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#endif
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/*
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* setnstimeofday() a nanosecond enabled version of settimeofday()
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*
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* Copyright (c) 2007-2013 J. Schilling
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*/
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/*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* See the file CDDL.Schily.txt in this distribution for details.
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* A copy of the CDDL is also available via the Internet at
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* http://www.opensource.org/licenses/cddl1.txt
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file CDDL.Schily.txt from this distribution.
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*/
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#if (defined(_MSC_VER) || defined(__MINGW32__))
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#include <schily/windows.h>
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#include <schily/time.h>
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#include <schily/utypes.h>
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#include <schily/standard.h>
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#ifdef _MSC_VER
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const __int64 MS_FTIME_ADD = 0x2b6109100i64;
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const __int64 MS_FTIME_SECS = 10000000i64;
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#else
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const Int64_t MS_FTIME_ADD = 0x2b6109100LL;
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const Int64_t MS_FTIME_SECS = 10000000LL;
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#endif
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EXPORT int
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setnstimeofday(tp)
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struct timespec *tp;
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{
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FILETIME ft;
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SYSTEMTIME st;
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Int64_t T;
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if (tp == 0)
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return (0);
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/* 100ns time since 1601 */
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T = (tp->tv_sec + MS_FTIME_ADD) * MS_FTIME_SECS;
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T += tp->tv_nsec / 100; /* T Granularity is 100ns */
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ft.dwLowDateTime = T & 0xFFFFFFFFUL;
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T >>= 32;
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ft.dwHighDateTime = T;
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if (FileTimeToSystemTime(&ft, &st) == 0)
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return (-1);
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if (SetSystemTime(&st) == 0)
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return (-1);
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return (0);
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}
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#else /* (defined(_MSC_VER) || defined(__MINGW32__)) */
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#include <schily/time.h>
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#include <schily/standard.h>
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#include <schily/schily.h>
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EXPORT int
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setnstimeofday(tp)
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struct timespec *tp;
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{
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struct timeval tv;
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#if defined(HAVE_CLOCK_SETTIME) && defined(HAVE_CLOCK_GETTIME_IN_LIBC)
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if (clock_settime(CLOCK_REALTIME, tp) == 0)
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return (0);
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#endif
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tv.tv_sec = tp->tv_sec;
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tv.tv_usec = tp->tv_nsec / 1000;
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return (settimeofday(&tv, (void *)0));
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}
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#endif /* (defined(_MSC_VER) || defined(__MINGW32__)) */
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