| 1 | /* $Id: timesupref.cpp 29267 2010-05-09 21:21:36Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - Time using SUPLib, the C Implementation.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2010 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 | #if !defined(IN_GUEST) && !defined(RT_NO_GIP)
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| 28 |
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| 29 | /*******************************************************************************
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| 30 | * Header Files *
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| 31 | *******************************************************************************/
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| 32 | #include <iprt/time.h>
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| 33 | #include "internal/iprt.h"
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| 34 |
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| 35 | #include <iprt/asm.h>
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| 36 | #include <iprt/asm-math.h>
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| 37 | #include <iprt/asm-amd64-x86.h>
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| 38 | #include <VBox/sup.h>
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| 39 | #include "internal/time.h"
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| 40 |
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| 41 |
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| 42 | /*
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| 43 | * Use the CPUID instruction for some kind of serialization.
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| 44 | */
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| 45 | #undef ASYNC_GIP
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| 46 | #undef USE_LFENCE
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| 47 | #define NEED_TRANSACTION_ID
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| 48 | #define rtTimeNanoTSInternalRef RTTimeNanoTSLegacySync
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| 49 | #include "timesupref.h"
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| 50 | RT_EXPORT_SYMBOL(RTTimeNanoTSLegacySync);
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| 51 |
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| 52 | #define ASYNC_GIP
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| 53 | #ifdef IN_RC
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| 54 | # undef NEED_TRANSACTION_ID
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| 55 | #endif
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| 56 | #undef rtTimeNanoTSInternalRef
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| 57 | #define rtTimeNanoTSInternalRef RTTimeNanoTSLegacyAsync
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| 58 | #include "timesupref.h"
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| 59 | RT_EXPORT_SYMBOL(RTTimeNanoTSLegacyAsync);
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| 60 |
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| 61 |
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| 62 | /*
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| 63 | * Use LFENCE for load serialization.
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| 64 | */
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| 65 | #undef ASYNC_GIP
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| 66 | #define USE_LFENCE
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| 67 | #undef NEED_TRANSACTION_ID
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| 68 | #define NEED_TRANSACTION_ID
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| 69 | #undef rtTimeNanoTSInternalRef
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| 70 | #define rtTimeNanoTSInternalRef RTTimeNanoTSLFenceSync
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| 71 | #include "timesupref.h"
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| 72 | RT_EXPORT_SYMBOL(RTTimeNanoTSLFenceSync);
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| 73 |
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| 74 | #define ASYNC_GIP
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| 75 | #ifdef IN_RC
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| 76 | # undef NEED_TRANSACTION_ID
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| 77 | #endif
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| 78 | #undef rtTimeNanoTSInternalRef
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| 79 | #define rtTimeNanoTSInternalRef RTTimeNanoTSLFenceAsync
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| 80 | #include "timesupref.h"
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| 81 | RT_EXPORT_SYMBOL(RTTimeNanoTSLFenceAsync);
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| 82 |
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| 83 |
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| 84 | #endif /* !IN_GUEST && !RT_NO_GIP */
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| 85 |
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