[7442] | 1 | /* $Id: SATAControllerImpl.cpp 10082 2008-07-01 18:50:28Z vboxsync $ */
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| 2 |
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| 3 | /** @file
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| 4 | *
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| 5 | * Implementation of ISATAController.
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| 6 | */
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| 7 |
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| 8 | /*
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[8155] | 9 | * Copyright (C) 2008 Sun Microsystems, Inc.
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[7442] | 10 | *
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| 11 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 12 | * available from http://www.virtualbox.org. This file is free software;
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| 13 | * you can redistribute it and/or modify it under the terms of the GNU
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| 14 | * General Public License (GPL) as published by the Free Software
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| 15 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 16 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 17 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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[8155] | 18 | *
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| 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
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| 20 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
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| 21 | * additional information or have any questions.
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[7442] | 22 | */
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| 23 |
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| 24 |
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| 25 |
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| 26 | #include "SATAControllerImpl.h"
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| 27 | #include "MachineImpl.h"
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| 28 | #include "VirtualBoxImpl.h"
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| 29 | #include "Logging.h"
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| 30 |
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| 31 | #include <iprt/string.h>
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| 32 | #include <iprt/cpputils.h>
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| 33 | #include <VBox/err.h>
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| 34 |
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| 35 | #include <algorithm>
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| 36 |
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| 37 | // defines
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| 38 | /////////////////////////////////////////////////////////////////////////////
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| 39 |
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| 40 | // constructor / destructor
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| 41 | /////////////////////////////////////////////////////////////////////////////
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| 42 |
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| 43 | DEFINE_EMPTY_CTOR_DTOR (SATAController)
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| 44 |
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| 45 | HRESULT SATAController::FinalConstruct()
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| 46 | {
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| 47 | return S_OK;
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| 48 | }
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| 49 |
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| 50 | void SATAController::FinalRelease()
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| 51 | {
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| 52 | uninit();
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| 53 | }
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| 54 |
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| 55 | // public initializer/uninitializer for internal purposes only
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| 56 | /////////////////////////////////////////////////////////////////////////////
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| 57 |
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| 58 | /**
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[10082] | 59 | * Initializes the SATA controller object.
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[7442] | 60 | *
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| 61 | * @returns COM result indicator.
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| 62 | * @param aParent Pointer to our parent object.
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| 63 | */
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| 64 | HRESULT SATAController::init (Machine *aParent)
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| 65 | {
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| 66 | LogFlowThisFunc (("aParent=%p\n", aParent));
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| 67 |
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| 68 | ComAssertRet (aParent, E_INVALIDARG);
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| 69 |
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| 70 | /* Enclose the state transition NotReady->InInit->Ready */
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| 71 | AutoInitSpan autoInitSpan (this);
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| 72 | AssertReturn (autoInitSpan.isOk(), E_UNEXPECTED);
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| 73 |
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| 74 | unconst (mParent) = aParent;
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| 75 | /* mPeer is left null */
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| 76 |
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| 77 | mData.allocate();
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| 78 |
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| 79 | /* Confirm a successful initialization */
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| 80 | autoInitSpan.setSucceeded();
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| 81 |
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| 82 | return S_OK;
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| 83 | }
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| 84 |
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| 85 |
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| 86 | /**
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| 87 | * Initializes the SATA controller object given another SATA controller object
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| 88 | * (a kind of copy constructor). This object shares data with
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| 89 | * the object passed as an argument.
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| 90 | *
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| 91 | * @returns COM result indicator.
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| 92 | * @param aParent Pointer to our parent object.
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| 93 | * @param aPeer The object to share.
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| 94 | *
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| 95 | * @note This object must be destroyed before the original object
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| 96 | * it shares data with is destroyed.
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| 97 | */
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| 98 | HRESULT SATAController::init (Machine *aParent, SATAController *aPeer)
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| 99 | {
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| 100 | LogFlowThisFunc (("aParent=%p, aPeer=%p\n", aParent, aPeer));
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| 101 |
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| 102 | ComAssertRet (aParent && aPeer, E_INVALIDARG);
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| 103 |
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| 104 | /* Enclose the state transition NotReady->InInit->Ready */
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| 105 | AutoInitSpan autoInitSpan (this);
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| 106 | AssertReturn (autoInitSpan.isOk(), E_UNEXPECTED);
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| 107 |
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| 108 | unconst (mParent) = aParent;
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| 109 | unconst (mPeer) = aPeer;
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| 110 |
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[8083] | 111 | AutoWriteLock thatlock (aPeer);
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[7442] | 112 | mData.share (aPeer->mData);
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| 113 |
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| 114 | /* Confirm a successful initialization */
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| 115 | autoInitSpan.setSucceeded();
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| 116 |
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| 117 | return S_OK;
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| 118 | }
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| 119 |
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| 120 |
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| 121 | /**
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| 122 | * Initializes the SATA controller object given another guest object
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| 123 | * (a kind of copy constructor). This object makes a private copy of data
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| 124 | * of the original object passed as an argument.
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| 125 | */
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| 126 | HRESULT SATAController::initCopy (Machine *aParent, SATAController *aPeer)
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| 127 | {
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| 128 | LogFlowThisFunc (("aParent=%p, aPeer=%p\n", aParent, aPeer));
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| 129 |
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| 130 | ComAssertRet (aParent && aPeer, E_INVALIDARG);
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| 131 |
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| 132 | /* Enclose the state transition NotReady->InInit->Ready */
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| 133 | AutoInitSpan autoInitSpan (this);
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| 134 | AssertReturn (autoInitSpan.isOk(), E_UNEXPECTED);
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| 135 |
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| 136 | unconst (mParent) = aParent;
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| 137 | /* mPeer is left null */
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| 138 |
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[8083] | 139 | AutoWriteLock thatlock (aPeer);
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[7442] | 140 | mData.attachCopy (aPeer->mData);
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| 141 |
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| 142 | /* Confirm a successful initialization */
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| 143 | autoInitSpan.setSucceeded();
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| 144 |
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| 145 | return S_OK;
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| 146 | }
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| 147 |
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| 148 |
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| 149 | /**
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| 150 | * Uninitializes the instance and sets the ready flag to FALSE.
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| 151 | * Called either from FinalRelease() or by the parent when it gets destroyed.
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| 152 | */
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| 153 | void SATAController::uninit()
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| 154 | {
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| 155 | LogFlowThisFunc (("\n"));
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| 156 |
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| 157 | /* Enclose the state transition Ready->InUninit->NotReady */
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| 158 | AutoUninitSpan autoUninitSpan (this);
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| 159 | if (autoUninitSpan.uninitDone())
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| 160 | return;
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| 161 |
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| 162 | /* uninit all filters (including those still referenced by clients) */
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| 163 | uninitDependentChildren();
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| 164 |
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| 165 | mData.free();
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| 166 |
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| 167 | unconst (mPeer).setNull();
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| 168 | unconst (mParent).setNull();
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| 169 | }
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| 170 |
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| 171 |
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| 172 | // ISATAController properties
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| 173 | /////////////////////////////////////////////////////////////////////////////
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| 174 |
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| 175 | STDMETHODIMP SATAController::COMGETTER(Enabled) (BOOL *aEnabled)
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| 176 | {
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| 177 | if (!aEnabled)
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| 178 | return E_POINTER;
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| 179 |
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| 180 | AutoCaller autoCaller (this);
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| 181 | CheckComRCReturnRC (autoCaller.rc());
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| 182 |
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[8083] | 183 | AutoReadLock alock (this);
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[7442] | 184 |
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| 185 | *aEnabled = mData->mEnabled;
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| 186 |
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| 187 | return S_OK;
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| 188 | }
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| 189 |
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| 190 |
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| 191 | STDMETHODIMP SATAController::COMSETTER(Enabled) (BOOL aEnabled)
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| 192 | {
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| 193 | LogFlowThisFunc (("aEnabled=%RTbool\n", aEnabled));
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| 194 |
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| 195 | AutoCaller autoCaller (this);
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| 196 | CheckComRCReturnRC (autoCaller.rc());
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| 197 |
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| 198 | /* the machine needs to be mutable */
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| 199 | Machine::AutoMutableStateDependency adep (mParent);
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| 200 | CheckComRCReturnRC (adep.rc());
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| 201 |
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[8083] | 202 | AutoWriteLock alock (this);
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[7442] | 203 |
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| 204 | if (mData->mEnabled != aEnabled)
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| 205 | {
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| 206 | mData.backup();
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| 207 | mData->mEnabled = aEnabled;
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| 208 |
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| 209 | /* leave the lock for safety */
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| 210 | alock.leave();
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| 211 |
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| 212 | mParent->onSATAControllerChange();
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| 213 | }
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| 214 |
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| 215 | return S_OK;
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| 216 | }
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| 217 |
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[7556] | 218 | STDMETHODIMP SATAController::COMGETTER(PortCount) (ULONG *aPortCount)
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| 219 | {
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| 220 | if (!aPortCount)
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| 221 | return E_POINTER;
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| 222 |
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| 223 | AutoCaller autoCaller (this);
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| 224 | CheckComRCReturnRC (autoCaller.rc());
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| 225 |
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[8083] | 226 | AutoReadLock alock (this);
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[7556] | 227 |
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| 228 | *aPortCount = mData->mPortCount;
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| 229 |
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| 230 | return S_OK;
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| 231 | }
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| 232 |
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| 233 |
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| 234 | STDMETHODIMP SATAController::COMSETTER(PortCount) (ULONG aPortCount)
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| 235 | {
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| 236 | LogFlowThisFunc (("aPortCount=%u\n", aPortCount));
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| 237 |
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[8603] | 238 | /* We support a maximum of 30 channels. */
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| 239 | if ((aPortCount < 1) || (aPortCount > 30))
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| 240 | return setError (E_INVALIDARG,
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| 241 | tr ("Invalid port count: %lu (must be in range [%lu, %lu])"),
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| 242 | aPortCount, 1, 30);
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| 243 |
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[7556] | 244 | AutoCaller autoCaller (this);
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| 245 | CheckComRCReturnRC (autoCaller.rc());
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| 246 |
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| 247 | /* the machine needs to be mutable */
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| 248 | Machine::AutoMutableStateDependency adep (mParent);
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| 249 | CheckComRCReturnRC (adep.rc());
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| 250 |
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[8083] | 251 | AutoWriteLock alock (this);
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[7556] | 252 |
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| 253 | if (mData->mPortCount != aPortCount)
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| 254 | {
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| 255 | mData.backup();
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| 256 | mData->mPortCount = aPortCount;
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| 257 |
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| 258 | /* leave the lock for safety */
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| 259 | alock.leave();
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| 260 |
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| 261 | mParent->onSATAControllerChange();
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| 262 | }
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| 263 |
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| 264 | return S_OK;
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| 265 | }
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| 266 |
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[7442] | 267 | // ISATAController methods
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| 268 | /////////////////////////////////////////////////////////////////////////////
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| 269 |
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| 270 | STDMETHODIMP SATAController::GetIDEEmulationPort(LONG DevicePosition, LONG *aPortNumber)
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| 271 | {
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| 272 | if (!aPortNumber)
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| 273 | return E_POINTER;
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| 274 |
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| 275 | AutoCaller autoCaller (this);
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| 276 | CheckComRCReturnRC (autoCaller.rc());
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| 277 |
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| 278 | switch (DevicePosition)
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| 279 | {
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| 280 | case 0:
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| 281 | *aPortNumber = mData->mPortIde0Master;
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| 282 | break;
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| 283 | case 1:
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| 284 | *aPortNumber = mData->mPortIde0Slave;
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| 285 | break;
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| 286 | case 2:
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| 287 | *aPortNumber = mData->mPortIde1Master;
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| 288 | break;
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| 289 | case 3:
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| 290 | *aPortNumber = mData->mPortIde1Slave;
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| 291 | break;
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| 292 | default:
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| 293 | return E_INVALIDARG;
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| 294 | }
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| 295 |
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| 296 | return S_OK;
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| 297 | }
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| 298 |
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| 299 | STDMETHODIMP SATAController::SetIDEEmulationPort(LONG DevicePosition, LONG aPortNumber)
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| 300 | {
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[8605] | 301 | if ((aPortNumber < 0) || (aPortNumber >= 30))
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| 302 | return setError (E_INVALIDARG,
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| 303 | tr ("Invalid port number: %l (must be in range [%lu, %lu])"),
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[8606] | 304 | aPortNumber, 0, 29);
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[8605] | 305 |
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[7442] | 306 | AutoCaller autoCaller (this);
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| 307 | CheckComRCReturnRC (autoCaller.rc());
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| 308 |
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| 309 | /* the machine needs to be mutable */
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| 310 | Machine::AutoMutableStateDependency adep (mParent);
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| 311 | CheckComRCReturnRC (adep.rc());
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[8083] | 312 | AutoWriteLock alock (this);
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[7442] | 313 |
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| 314 | switch (DevicePosition)
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| 315 | {
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| 316 | case 0:
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| 317 | mData->mPortIde0Master = aPortNumber;
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| 318 | break;
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| 319 | case 1:
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| 320 | mData->mPortIde0Slave = aPortNumber;
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| 321 | break;
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| 322 | case 2:
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| 323 | mData->mPortIde1Master = aPortNumber;
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| 324 | break;
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| 325 | case 3:
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| 326 | mData->mPortIde1Slave = aPortNumber;
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| 327 | break;
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| 328 | default:
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| 329 | return E_INVALIDARG;
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| 330 | }
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| 331 |
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| 332 | return S_OK;
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| 333 | }
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| 334 |
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| 335 | // public methods only for internal purposes
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| 336 | /////////////////////////////////////////////////////////////////////////////
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| 337 |
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[7992] | 338 | /**
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[7442] | 339 | * Loads settings from the given machine node.
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| 340 | * May be called once right after this object creation.
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[7992] | 341 | *
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[7442] | 342 | * @param aMachineNode <Machine> node.
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[7992] | 343 | *
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| 344 | * @note Locks this object for writing.
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[7442] | 345 | */
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| 346 | HRESULT SATAController::loadSettings (const settings::Key &aMachineNode)
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| 347 | {
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| 348 | using namespace settings;
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| 349 |
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| 350 | AssertReturn (!aMachineNode.isNull(), E_FAIL);
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| 351 |
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| 352 | AutoCaller autoCaller (this);
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| 353 | AssertComRCReturnRC (autoCaller.rc());
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| 354 |
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[8083] | 355 | AutoWriteLock alock (this);
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[7442] | 356 |
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| 357 | /* SATA Controller node (required) */
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| 358 | Key controller = aMachineNode.key ("SATAController");
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| 359 |
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| 360 | /* enabled (required) */
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| 361 | mData->mEnabled = controller.value <bool> ("enabled");
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| 362 |
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[7556] | 363 | /* number of useable ports */
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| 364 | mData->mPortCount = controller.valueOr <ULONG> ("PortCount", 30);
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| 365 |
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[7442] | 366 | /* ide emulation settings (optional, default to 0,1,2,3 respectively) */
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| 367 | mData->mPortIde0Master = controller.value <ULONG> ("IDE0MasterEmulationPort");
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| 368 | mData->mPortIde0Slave = controller.value <ULONG> ("IDE0SlaveEmulationPort");
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| 369 | mData->mPortIde1Master = controller.value <ULONG> ("IDE1MasterEmulationPort");
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| 370 | mData->mPortIde1Slave = controller.value <ULONG> ("IDE1SlaveEmulationPort");
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| 371 |
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| 372 | return S_OK;
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| 373 | }
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| 374 |
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[7992] | 375 | /**
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[7442] | 376 | * Saves settings to the given machine node.
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[7992] | 377 | *
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[7442] | 378 | * @param aMachineNode <Machine> node.
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[7992] | 379 | *
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[7442] | 380 | * @note Locks this object for reading.
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| 381 | */
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| 382 | HRESULT SATAController::saveSettings (settings::Key &aMachineNode)
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| 383 | {
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| 384 | using namespace settings;
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| 385 |
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| 386 | AssertReturn (!aMachineNode.isNull(), E_FAIL);
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| 387 |
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| 388 | AutoCaller autoCaller (this);
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| 389 | CheckComRCReturnRC (autoCaller.rc());
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| 390 |
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[8083] | 391 | AutoReadLock alock (this);
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[7442] | 392 |
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| 393 | /* first, delete the entry */
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| 394 | Key controller = aMachineNode.findKey ("SATAController");
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| 395 | if (!controller.isNull())
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| 396 | controller.zap();
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| 397 | /* then, recreate it */
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| 398 | controller = aMachineNode.createKey ("SATAController");
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| 399 |
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| 400 | /* enabled */
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| 401 | controller.setValue <bool> ("enabled", !!mData->mEnabled);
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| 402 |
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[7556] | 403 | /* number of useable ports */
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| 404 | controller.setValue <ULONG> ("PortCount", mData->mPortCount);
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| 405 |
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[7442] | 406 | /* ide emulation settings */
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| 407 | controller.setValue <ULONG> ("IDE0MasterEmulationPort", mData->mPortIde0Master);
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| 408 | controller.setValue <ULONG> ("IDE0SlaveEmulationPort", mData->mPortIde0Slave);
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| 409 | controller.setValue <ULONG> ("IDE1MasterEmulationPort", mData->mPortIde1Master);
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| 410 | controller.setValue <ULONG> ("IDE1SlaveEmulationPort", mData->mPortIde1Slave);
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| 411 |
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| 412 | return S_OK;
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| 413 | }
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| 414 |
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| 415 | /** @note Locks objects for reading! */
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| 416 | bool SATAController::isModified()
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| 417 | {
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| 418 | AutoCaller autoCaller (this);
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| 419 | AssertComRCReturn (autoCaller.rc(), false);
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| 420 |
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[8083] | 421 | AutoReadLock alock (this);
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[7442] | 422 |
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| 423 | if (mData.isBackedUp())
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| 424 | return true;
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| 425 |
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| 426 | return false;
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| 427 | }
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| 428 |
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| 429 | /** @note Locks objects for reading! */
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| 430 | bool SATAController::isReallyModified()
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| 431 | {
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| 432 | AutoCaller autoCaller (this);
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| 433 | AssertComRCReturn (autoCaller.rc(), false);
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| 434 |
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[8083] | 435 | AutoReadLock alock (this);
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[7442] | 436 |
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| 437 | if (mData.hasActualChanges())
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| 438 | return true;
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| 439 |
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| 440 | return false;
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| 441 | }
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| 442 |
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| 443 | /** @note Locks objects for writing! */
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| 444 | bool SATAController::rollback()
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| 445 | {
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| 446 | AutoCaller autoCaller (this);
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| 447 | AssertComRCReturn (autoCaller.rc(), false);
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| 448 |
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| 449 | /* we need the machine state */
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| 450 | Machine::AutoAnyStateDependency adep (mParent);
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| 451 | AssertComRCReturn (adep.rc(), false);
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| 452 |
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[8083] | 453 | AutoWriteLock alock (this);
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[7442] | 454 |
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| 455 | bool dataChanged = false;
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| 456 |
|
---|
| 457 | if (mData.isBackedUp())
|
---|
| 458 | {
|
---|
| 459 | /* we need to check all data to see whether anything will be changed
|
---|
| 460 | * after rollback */
|
---|
| 461 | dataChanged = mData.hasActualChanges();
|
---|
| 462 | mData.rollback();
|
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| 463 | }
|
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| 464 |
|
---|
| 465 | return dataChanged;
|
---|
| 466 | }
|
---|
| 467 |
|
---|
[7992] | 468 | /**
|
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| 469 | * @note Locks this object for writing, together with the peer object (also
|
---|
| 470 | * for writing) if there is one.
|
---|
| 471 | */
|
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[7442] | 472 | void SATAController::commit()
|
---|
| 473 | {
|
---|
[7992] | 474 | /* sanity */
|
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[7442] | 475 | AutoCaller autoCaller (this);
|
---|
| 476 | AssertComRCReturnVoid (autoCaller.rc());
|
---|
| 477 |
|
---|
[7992] | 478 | /* sanity too */
|
---|
| 479 | AutoCaller peerCaller (mPeer);
|
---|
| 480 | AssertComRCReturnVoid (peerCaller.rc());
|
---|
[7442] | 481 |
|
---|
[7992] | 482 | /* lock both for writing since we modify both (mPeer is "master" so locked
|
---|
| 483 | * first) */
|
---|
| 484 | AutoMultiWriteLock2 alock (mPeer, this);
|
---|
| 485 |
|
---|
[7442] | 486 | if (mData.isBackedUp())
|
---|
| 487 | {
|
---|
| 488 | mData.commit();
|
---|
| 489 | if (mPeer)
|
---|
| 490 | {
|
---|
| 491 | // attach new data to the peer and reshare it
|
---|
[8083] | 492 | AutoWriteLock peerlock (mPeer);
|
---|
[7442] | 493 | mPeer->mData.attach (mData);
|
---|
| 494 | }
|
---|
| 495 | }
|
---|
| 496 | }
|
---|
| 497 |
|
---|
[7992] | 498 | /**
|
---|
| 499 | * @note Locks this object for writing, together with the peer object
|
---|
| 500 | * represented by @a aThat (locked for reading).
|
---|
| 501 | */
|
---|
[7442] | 502 | void SATAController::copyFrom (SATAController *aThat)
|
---|
| 503 | {
|
---|
[7992] | 504 | AssertReturnVoid (aThat != NULL);
|
---|
| 505 |
|
---|
| 506 | /* sanity */
|
---|
[7442] | 507 | AutoCaller autoCaller (this);
|
---|
| 508 | AssertComRCReturnVoid (autoCaller.rc());
|
---|
| 509 |
|
---|
[7992] | 510 | /* sanity too */
|
---|
| 511 | AutoCaller thatCaller (aThat);
|
---|
| 512 | AssertComRCReturnVoid (thatCaller.rc());
|
---|
[7442] | 513 |
|
---|
[7992] | 514 | /* peer is not modified, lock it for reading (aThat is "master" so locked
|
---|
| 515 | * first) */
|
---|
| 516 | AutoMultiLock2 alock (aThat->rlock(), this->wlock());
|
---|
| 517 |
|
---|
[7442] | 518 | /* this will back up current data */
|
---|
| 519 | mData.assignCopy (aThat->mData);
|
---|
| 520 | }
|
---|
| 521 |
|
---|
| 522 | // private methods
|
---|
| 523 | /////////////////////////////////////////////////////////////////////////////
|
---|
| 524 |
|
---|