| 1 | /* $Id: mp-win.cpp 8170 2008-04-18 17:52:25Z vboxsync $ */
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| 2 | /** @file
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| 3 | * Incredibly Portable Runtime - 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 Sun Microsystems, Inc.
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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 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
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| 27 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
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| 28 | * additional information or have any questions.
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| 29 | */
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| 30 |
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| 31 |
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| 32 | /*******************************************************************************
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| 33 | * Header Files *
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| 34 | *******************************************************************************/
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| 35 | #define LOG_GROUP RTLOGGROUP_SYSTEM
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| 36 | #include <Windows.h>
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| 37 | #include <iprt/mp.h>
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| 38 | #include <iprt/cpuset.h>
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| 39 | #include <iprt/assert.h>
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| 40 |
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| 41 |
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| 42 | /** @todo RTmpCpuId(). */
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| 43 |
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| 44 | RTDECL(int) RTMpCpuIdToSetIndex(RTCPUID idCpu)
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| 45 | {
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| 46 | return idCpu < MAXIMUM_PROCESSORS ? idCpu : -1;
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| 47 | }
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| 48 |
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| 49 |
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| 50 | RTDECL(RTCPUID) RTMpCpuIdFromSetIndex(int iCpu)
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| 51 | {
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| 52 | return (unsigned)iCpu < MAXIMUM_PROCESSORS ? iCpu : NIL_RTCPUID;
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| 53 | }
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| 54 |
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| 55 |
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| 56 | RTDECL(RTCPUID) RTMpGetMaxCpuId(void)
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| 57 | {
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| 58 | return MAXIMUM_PROCESSORS - 1;
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| 59 | }
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| 60 |
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| 61 |
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| 62 | RTDECL(bool) RTMpIsCpuOnline(RTCPUID idCpu)
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| 63 | {
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| 64 | RTCPUSET Set;
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| 65 | return RTCpuSetIsMember(RTMpGetOnlineSet(&Set), idCpu);
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| 66 | }
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| 67 |
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| 68 |
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| 69 | RTDECL(bool) RTMpDoesCpuExist(RTCPUID idCpu)
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| 70 | {
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| 71 | RTCPUSET Set;
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| 72 | return RTCpuSetIsMember(RTMpGetSet(&Set), idCpu);
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| 73 | }
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| 74 |
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| 75 |
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| 76 | RTDECL(PRTCPUSET) RTMpGetSet(PRTCPUSET pSet)
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| 77 | {
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| 78 | RTCPUID idCpu = RTMpGetCount();
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| 79 | RTCpuSetEmpty(pSet);
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| 80 | while (idCpu-- > 0)
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| 81 | RTCpuSetAdd(pSet, idCpu);
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| 82 | return pSet;
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| 83 | }
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| 84 |
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| 85 |
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| 86 | RTDECL(RTCPUID) RTMpGetCount(void)
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| 87 | {
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| 88 | SYSTEM_INFO SysInfo;
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| 89 | GetSystemInfo(&SysInfo);
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| 90 | Assert((RTCPUID)SysInfo.dwNumberOfProcessors == SysInfo.dwNumberOfProcessors);
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| 91 | return SysInfo.dwNumberOfProcessors;
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| 92 | }
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| 93 |
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| 94 |
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| 95 | RTDECL(PRTCPUSET) RTMpGetOnlineSet(PRTCPUSET pSet)
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| 96 | {
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| 97 | SYSTEM_INFO SysInfo;
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| 98 | GetSystemInfo(&SysInfo);
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| 99 | return RTCpuSetFromU64(pSet, SysInfo.dwActiveProcessorMask);
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| 100 | }
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| 101 |
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| 102 |
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| 103 | RTDECL(RTCPUID) RTMpGetOnlineCount(void)
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| 104 | {
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| 105 | RTCPUSET Set;
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| 106 | RTMpGetOnlineSet(&Set);
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| 107 | return RTCpuSetCount(&Set);
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| 108 | }
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| 109 |
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