| 1 | /* $Id: mp-win.cpp 28800 2010-04-27 08:22:32Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - Multiprocessor, Windows.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2007 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 |
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| 28 | /*******************************************************************************
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| 29 | * Header Files *
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| 30 | *******************************************************************************/
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| 31 | #define LOG_GROUP RTLOGGROUP_SYSTEM
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| 32 | #include <Windows.h>
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| 33 | #include <iprt/mp.h>
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| 34 | #include <iprt/cpuset.h>
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| 35 | #include <iprt/assert.h>
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| 36 |
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| 37 |
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| 38 | /** @todo RTmpCpuId(). */
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| 39 |
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| 40 | RTDECL(int) RTMpCpuIdToSetIndex(RTCPUID idCpu)
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| 41 | {
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| 42 | return idCpu < MAXIMUM_PROCESSORS ? idCpu : -1;
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| 43 | }
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| 44 |
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| 45 |
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| 46 | RTDECL(RTCPUID) RTMpCpuIdFromSetIndex(int iCpu)
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| 47 | {
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| 48 | return (unsigned)iCpu < MAXIMUM_PROCESSORS ? iCpu : NIL_RTCPUID;
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| 49 | }
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| 50 |
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| 51 |
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| 52 | RTDECL(RTCPUID) RTMpGetMaxCpuId(void)
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| 53 | {
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| 54 | return MAXIMUM_PROCESSORS - 1;
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| 55 | }
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| 56 |
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| 57 |
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| 58 | RTDECL(bool) RTMpIsCpuOnline(RTCPUID idCpu)
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| 59 | {
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| 60 | RTCPUSET Set;
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| 61 | return RTCpuSetIsMember(RTMpGetOnlineSet(&Set), idCpu);
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| 62 | }
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| 63 |
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| 64 |
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| 65 | RTDECL(bool) RTMpIsCpuPossible(RTCPUID idCpu)
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| 66 | {
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| 67 | RTCPUSET Set;
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| 68 | return RTCpuSetIsMember(RTMpGetSet(&Set), idCpu);
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| 69 | }
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| 70 |
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| 71 |
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| 72 | RTDECL(PRTCPUSET) RTMpGetSet(PRTCPUSET pSet)
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| 73 | {
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| 74 | RTCPUID idCpu = RTMpGetCount();
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| 75 | RTCpuSetEmpty(pSet);
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| 76 | while (idCpu-- > 0)
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| 77 | RTCpuSetAdd(pSet, idCpu);
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| 78 | return pSet;
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| 79 | }
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| 80 |
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| 81 |
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| 82 | RTDECL(RTCPUID) RTMpGetCount(void)
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| 83 | {
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| 84 | SYSTEM_INFO SysInfo;
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| 85 | GetSystemInfo(&SysInfo);
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| 86 | Assert((RTCPUID)SysInfo.dwNumberOfProcessors == SysInfo.dwNumberOfProcessors);
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| 87 | return SysInfo.dwNumberOfProcessors;
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| 88 | }
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| 89 |
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| 90 |
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| 91 | RTDECL(PRTCPUSET) RTMpGetOnlineSet(PRTCPUSET pSet)
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| 92 | {
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| 93 | SYSTEM_INFO SysInfo;
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| 94 | GetSystemInfo(&SysInfo);
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| 95 | return RTCpuSetFromU64(pSet, SysInfo.dwActiveProcessorMask);
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| 96 | }
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| 97 |
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| 98 |
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| 99 | RTDECL(RTCPUID) RTMpGetOnlineCount(void)
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| 100 | {
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| 101 | RTCPUSET Set;
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| 102 | RTMpGetOnlineSet(&Set);
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| 103 | return RTCpuSetCount(&Set);
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| 104 | }
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| 105 |
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