1 | /* $Id: MediumAttachmentImpl.cpp 56820 2015-07-06 15:05:40Z vboxsync $ */
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2 | /** @file
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3 | *
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4 | * VirtualBox COM class implementation
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5 | */
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6 |
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7 | /*
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8 | * Copyright (C) 2006-2015 Oracle Corporation
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9 | *
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10 | * This file is part of VirtualBox Open Source Edition (OSE), as
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11 | * available from http://www.virtualbox.org. This file is free software;
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12 | * you can redistribute it and/or modify it under the terms of the GNU
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13 | * General Public License (GPL) as published by the Free Software
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14 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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15 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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16 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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17 | */
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18 |
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19 | #include "MediumAttachmentImpl.h"
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20 | #include "MachineImpl.h"
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21 | #include "MediumImpl.h"
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22 | #include "Global.h"
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23 |
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24 | #include "AutoCaller.h"
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25 | #include "Logging.h"
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26 |
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27 | #include <iprt/cpp/utils.h>
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28 |
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29 | ////////////////////////////////////////////////////////////////////////////////
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30 | //
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31 | // private member data definition
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32 | //
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33 | ////////////////////////////////////////////////////////////////////////////////
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34 |
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35 | struct BackupableMediumAttachmentData
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36 | {
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37 | BackupableMediumAttachmentData()
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38 | : lPort(0),
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39 | lDevice(0),
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40 | type(DeviceType_Null),
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41 | fPassthrough(false),
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42 | fTempEject(false),
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43 | fNonRotational(false),
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44 | fDiscard(false),
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45 | fImplicit(false),
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46 | fHotPluggable(false)
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47 | { }
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48 |
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49 | ComObjPtr<Medium> pMedium;
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50 | /* Since MediumAttachment is not a first class citizen when it
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51 | * comes to managing settings, having a reference to the storage
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52 | * controller will not work - when settings are changed it will point
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53 | * to the old, uninitialized instance. Changing this requires
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54 | * substantial changes to MediumImpl.cpp. */
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55 | const Utf8Str strControllerName;
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56 | /* Same counts for the assigned bandwidth group */
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57 | Utf8Str strBandwidthGroup;
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58 | const LONG lPort;
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59 | const LONG lDevice;
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60 | const DeviceType_T type;
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61 | bool fPassthrough;
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62 | bool fTempEject;
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63 | bool fNonRotational;
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64 | bool fDiscard;
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65 | bool fImplicit;
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66 | bool fHotPluggable;
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67 | };
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68 |
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69 | struct MediumAttachment::Data
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70 | {
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71 | Data(Machine * const aMachine = NULL)
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72 | : pMachine(aMachine),
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73 | fIsEjected(false)
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74 | { }
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75 |
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76 | /** Reference to Machine object, for checking mutable state. */
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77 | Machine * const pMachine;
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78 | /* later: const ComObjPtr<MediumAttachment> mPeer; */
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79 |
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80 | bool fIsEjected;
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81 |
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82 | Backupable<BackupableMediumAttachmentData> bd;
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83 | };
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84 |
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85 | // constructor / destructor
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86 | /////////////////////////////////////////////////////////////////////////////
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87 |
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88 | DEFINE_EMPTY_CTOR_DTOR(MediumAttachment)
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89 |
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90 | HRESULT MediumAttachment::FinalConstruct()
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91 | {
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92 | LogFlowThisFunc(("\n"));
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93 | return BaseFinalConstruct();
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94 | }
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95 |
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96 | void MediumAttachment::FinalRelease()
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97 | {
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98 | LogFlowThisFuncEnter();
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99 | uninit();
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100 | BaseFinalRelease();
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101 | LogFlowThisFuncLeave();
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102 | }
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103 |
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104 | // public initializer/uninitializer for internal purposes only
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105 | /////////////////////////////////////////////////////////////////////////////
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106 |
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107 | /**
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108 | * Initializes the medium attachment object.
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109 | *
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110 | * @param aParent Machine object.
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111 | * @param aMedium Medium object.
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112 | * @param aController Controller the hard disk is attached to.
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113 | * @param aPort Port number.
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114 | * @param aDevice Device number on the port.
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115 | * @param aPassthrough Whether accesses are directly passed to the host drive.
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116 | * @param aBandwidthLimit Bandwidth limit in Mbps
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117 | */
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118 | HRESULT MediumAttachment::init(Machine *aParent,
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119 | Medium *aMedium,
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120 | const Utf8Str &aControllerName,
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121 | LONG aPort,
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122 | LONG aDevice,
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123 | DeviceType_T aType,
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124 | bool aImplicit,
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125 | bool aPassthrough,
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126 | bool aTempEject,
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127 | bool aNonRotational,
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128 | bool aDiscard,
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129 | bool aHotPluggable,
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130 | const Utf8Str &strBandwidthGroup)
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131 | {
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132 | LogFlowThisFuncEnter();
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133 | LogFlowThisFunc(("aParent=%p aMedium=%p aControllerName=%s aPort=%d aDevice=%d aType=%d aImplicit=%d aPassthrough=%d aTempEject=%d aNonRotational=%d aDiscard=%d aHotPluggable=%d strBandwithGroup=%s\n", aParent, aMedium, aControllerName.c_str(), aPort, aDevice, aType, aImplicit, aPassthrough, aTempEject, aNonRotational, aDiscard, aHotPluggable, strBandwidthGroup.c_str()));
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134 |
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135 | if (aType == DeviceType_HardDisk)
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136 | AssertReturn(aMedium, E_INVALIDARG);
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137 |
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138 | /* Enclose the state transition NotReady->InInit->Ready */
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139 | AutoInitSpan autoInitSpan(this);
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140 | AssertReturn(autoInitSpan.isOk(), E_FAIL);
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141 |
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142 | m = new Data();
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143 |
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144 | unconst(m->pMachine) = aParent;
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145 |
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146 | m->bd.allocate();
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147 | m->bd->pMedium = aMedium;
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148 | unconst(m->bd->strBandwidthGroup) = strBandwidthGroup;
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149 | unconst(m->bd->strControllerName) = aControllerName;
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150 | unconst(m->bd->lPort) = aPort;
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151 | unconst(m->bd->lDevice) = aDevice;
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152 | unconst(m->bd->type) = aType;
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153 |
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154 | m->bd->fPassthrough = aPassthrough;
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155 | m->bd->fTempEject = aTempEject;
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156 | m->bd->fNonRotational = aNonRotational;
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157 | m->bd->fDiscard = aDiscard;
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158 | m->bd->fImplicit = aImplicit;
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159 | m->bd->fHotPluggable = aHotPluggable;
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160 |
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161 | /* Confirm a successful initialization when it's the case */
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162 | autoInitSpan.setSucceeded();
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163 |
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164 | /* Construct a short log name for this attachment. */
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165 | Utf8Str ctlName(aControllerName);
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166 | const char *psz = strpbrk(ctlName.c_str(), " \t:-");
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167 | mLogName = Utf8StrFmt("MA%p[%.*s:%u:%u:%s%s]",
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168 | this,
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169 | psz ? psz - ctlName.c_str() : 4, ctlName.c_str(),
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170 | aPort, aDevice, Global::stringifyDeviceType(aType),
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171 | m->bd->fImplicit ? ":I" : "");
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172 |
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173 | LogFlowThisFunc(("LEAVE - %s\n", i_getLogName()));
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174 | return S_OK;
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175 | }
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176 |
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177 | /**
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178 | * Initializes the medium attachment object given another guest object
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179 | * (a kind of copy constructor). This object makes a private copy of data
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180 | * of the original object passed as an argument.
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181 | */
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182 | HRESULT MediumAttachment::initCopy(Machine *aParent, MediumAttachment *aThat)
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183 | {
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184 | LogFlowThisFunc(("aParent=%p, aThat=%p\n", aParent, aThat));
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185 |
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186 | ComAssertRet(aParent && aThat, E_INVALIDARG);
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187 |
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188 | /* Enclose the state transition NotReady->InInit->Ready */
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189 | AutoInitSpan autoInitSpan(this);
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190 | AssertReturn(autoInitSpan.isOk(), E_FAIL);
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191 |
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192 | m = new Data(aParent);
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193 | /* m->pPeer is left null */
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194 |
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195 | AutoCaller thatCaller(aThat);
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196 | AssertComRCReturnRC(thatCaller.rc());
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197 |
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198 | AutoReadLock thatlock(aThat COMMA_LOCKVAL_SRC_POS);
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199 | m->bd.attachCopy(aThat->m->bd);
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200 |
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201 | /* Confirm a successful initialization */
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202 | autoInitSpan.setSucceeded();
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203 |
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204 | return S_OK;
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205 | }
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206 |
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207 | /**
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208 | * Uninitializes the instance.
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209 | * Called from FinalRelease().
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210 | */
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211 | void MediumAttachment::uninit()
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212 | {
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213 | LogFlowThisFunc(("ENTER - %s\n", i_getLogName()));
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214 |
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215 | /* Enclose the state transition Ready->InUninit->NotReady */
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216 | AutoUninitSpan autoUninitSpan(this);
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217 | if (autoUninitSpan.uninitDone())
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218 | return;
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219 |
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220 | m->bd.free();
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221 |
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222 | unconst(m->pMachine) = NULL;
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223 |
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224 | delete m;
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225 | m = NULL;
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226 |
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227 | LogFlowThisFuncLeave();
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228 | }
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229 |
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230 | // IHardDiskAttachment properties
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231 | /////////////////////////////////////////////////////////////////////////////
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232 |
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233 |
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234 | HRESULT MediumAttachment::getMedium(ComPtr<IMedium> &aHardDisk)
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235 | {
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236 | LogFlowThisFuncEnter();
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237 |
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238 | AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
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239 |
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240 | aHardDisk = m->bd->pMedium;
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241 |
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242 | LogFlowThisFuncLeave();
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243 | return S_OK;
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244 | }
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245 |
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246 |
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247 | HRESULT MediumAttachment::getController(com::Utf8Str &aController)
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248 | {
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249 | LogFlowThisFuncEnter();
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250 |
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251 | /* m->controller is constant during life time, no need to lock */
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252 | aController = Utf8Str(m->bd->strControllerName);
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253 |
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254 | LogFlowThisFuncLeave();
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255 | return S_OK;
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256 | }
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257 |
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258 |
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259 | HRESULT MediumAttachment::getPort(LONG *aPort)
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260 | {
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261 | LogFlowThisFuncEnter();
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262 |
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263 | /* m->bd->port is constant during life time, no need to lock */
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264 | *aPort = m->bd->lPort;
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265 |
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266 | LogFlowThisFuncLeave();
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267 | return S_OK;
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268 | }
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269 |
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270 | HRESULT MediumAttachment::getDevice(LONG *aDevice)
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271 | {
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272 | LogFlowThisFuncEnter();
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273 |
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274 | /* m->bd->device is constant during life time, no need to lock */
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275 | *aDevice = m->bd->lDevice;
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276 |
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277 | LogFlowThisFuncLeave();
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278 | return S_OK;
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279 | }
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280 |
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281 | HRESULT MediumAttachment::getType(DeviceType_T *aType)
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282 | {
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283 | LogFlowThisFuncEnter();
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284 |
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285 | /* m->bd->type is constant during life time, no need to lock */
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286 | *aType = m->bd->type;
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287 |
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288 | LogFlowThisFuncLeave();
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289 | return S_OK;
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290 | }
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291 |
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292 |
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293 | HRESULT MediumAttachment::getPassthrough(BOOL *aPassthrough)
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294 | {
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295 | LogFlowThisFuncEnter();
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296 |
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297 | AutoReadLock lock(this COMMA_LOCKVAL_SRC_POS);
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298 |
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299 | *aPassthrough = m->bd->fPassthrough;
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300 |
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301 | LogFlowThisFuncLeave();
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302 | return S_OK;
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303 | }
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304 |
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305 |
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306 | HRESULT MediumAttachment::getTemporaryEject(BOOL *aTemporaryEject)
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307 | {
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308 | LogFlowThisFuncEnter();
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309 |
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310 | AutoReadLock lock(this COMMA_LOCKVAL_SRC_POS);
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311 |
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312 | *aTemporaryEject = m->bd->fTempEject;
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313 |
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314 | LogFlowThisFuncLeave();
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315 | return S_OK;
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316 | }
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317 |
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318 |
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319 | HRESULT MediumAttachment::getIsEjected(BOOL *aEjected)
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320 | {
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321 | LogFlowThisFuncEnter();
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322 |
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323 | AutoReadLock lock(this COMMA_LOCKVAL_SRC_POS);
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324 |
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325 | *aEjected = m->fIsEjected;
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326 |
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327 | LogFlowThisFuncLeave();
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328 | return S_OK;
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329 | }
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330 |
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331 |
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332 | HRESULT MediumAttachment::getNonRotational(BOOL *aNonRotational)
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333 | {
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334 | LogFlowThisFuncEnter();
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335 |
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336 | AutoReadLock lock(this COMMA_LOCKVAL_SRC_POS);
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337 |
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338 | *aNonRotational = m->bd->fNonRotational;
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339 |
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340 | LogFlowThisFuncLeave();
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341 | return S_OK;
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342 | }
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343 |
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344 | HRESULT MediumAttachment::getDiscard(BOOL *aDiscard)
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345 | {
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346 | LogFlowThisFuncEnter();
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347 |
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348 | AutoReadLock lock(this COMMA_LOCKVAL_SRC_POS);
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349 |
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350 | *aDiscard = m->bd->fDiscard;
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351 |
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352 | LogFlowThisFuncLeave();
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353 | return S_OK;
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354 | }
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355 |
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356 |
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357 | HRESULT MediumAttachment::getBandwidthGroup(ComPtr<IBandwidthGroup> &aBandwidthGroup)
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358 | {
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359 | LogFlowThisFuncEnter();
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360 |
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361 | AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
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362 |
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363 | HRESULT hrc = S_OK;
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364 | if (m->bd->strBandwidthGroup.isNotEmpty())
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365 | {
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366 | ComObjPtr<BandwidthGroup> pBwGroup;
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367 | hrc = m->pMachine->i_getBandwidthGroup(m->bd->strBandwidthGroup, pBwGroup, true /* fSetError */);
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368 |
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369 | Assert(SUCCEEDED(hrc)); /* This is not allowed to fail because the existence of the
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370 | group was checked when it was attached. */
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371 |
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372 | if (SUCCEEDED(hrc))
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373 | pBwGroup.queryInterfaceTo(aBandwidthGroup.asOutParam());
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374 | }
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375 |
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376 | LogFlowThisFuncLeave();
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377 | return hrc;
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378 | }
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379 |
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380 | HRESULT MediumAttachment::getHotPluggable(BOOL *aHotPluggable)
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381 | {
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382 | LogFlowThisFuncEnter();
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383 |
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384 | AutoReadLock lock(this COMMA_LOCKVAL_SRC_POS);
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385 |
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386 | *aHotPluggable = m->bd->fHotPluggable;
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387 |
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388 | LogFlowThisFuncLeave();
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389 | return S_OK;
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390 | }
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391 |
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392 | /**
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393 | * @note Locks this object for writing.
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394 | */
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395 | void MediumAttachment::i_rollback()
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396 | {
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397 | LogFlowThisFunc(("ENTER - %s\n", i_getLogName()));
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398 |
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399 | /* sanity */
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400 | AutoCaller autoCaller(this);
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401 | AssertComRCReturnVoid(autoCaller.rc());
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402 |
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403 | AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
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404 |
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405 | m->bd.rollback();
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406 |
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407 | LogFlowThisFunc(("LEAVE - %s\n", i_getLogName()));
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408 | }
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409 |
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410 | /**
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411 | * @note Locks this object for writing.
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412 | */
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413 | void MediumAttachment::i_commit()
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414 | {
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415 | LogFlowThisFunc(("ENTER - %s\n", i_getLogName()));
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416 |
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417 | /* sanity */
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418 | AutoCaller autoCaller(this);
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419 | AssertComRCReturnVoid (autoCaller.rc());
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420 |
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421 | AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
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422 |
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423 | if (m->bd.isBackedUp())
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424 | m->bd.commit();
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425 |
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426 | LogFlowThisFunc(("LEAVE - %s\n", i_getLogName()));
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427 | }
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428 |
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429 | bool MediumAttachment::i_isImplicit() const
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430 | {
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431 | return m->bd->fImplicit;
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432 | }
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433 |
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434 | void MediumAttachment::i_setImplicit(bool aImplicit)
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435 | {
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436 | m->bd->fImplicit = aImplicit;
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437 | }
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438 |
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439 | const ComObjPtr<Medium>& MediumAttachment::i_getMedium() const
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440 | {
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441 | return m->bd->pMedium;
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442 | }
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443 |
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444 | const Utf8Str &MediumAttachment::i_getControllerName() const
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445 | {
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446 | return m->bd->strControllerName;
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447 | }
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448 |
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449 | LONG MediumAttachment::i_getPort() const
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450 | {
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451 | return m->bd->lPort;
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452 | }
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453 |
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454 | LONG MediumAttachment::i_getDevice() const
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455 | {
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456 | return m->bd->lDevice;
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457 | }
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458 |
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459 | DeviceType_T MediumAttachment::i_getType() const
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460 | {
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461 | return m->bd->type;
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462 | }
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463 |
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464 | bool MediumAttachment::i_getPassthrough() const
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465 | {
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466 | AutoReadLock lock(this COMMA_LOCKVAL_SRC_POS);
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467 | return m->bd->fPassthrough;
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468 | }
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469 |
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470 | bool MediumAttachment::i_getTempEject() const
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471 | {
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472 | AutoReadLock lock(this COMMA_LOCKVAL_SRC_POS);
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473 | return m->bd->fTempEject;
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474 | }
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475 |
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476 | bool MediumAttachment::i_getNonRotational() const
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477 | {
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478 | AutoReadLock lock(this COMMA_LOCKVAL_SRC_POS);
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479 | return m->bd->fNonRotational;
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480 | }
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481 |
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482 | bool MediumAttachment::i_getDiscard() const
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483 | {
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484 | AutoReadLock lock(this COMMA_LOCKVAL_SRC_POS);
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485 | return m->bd->fDiscard;
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486 | }
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487 |
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488 | bool MediumAttachment::i_getHotPluggable() const
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489 | {
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490 | AutoReadLock lock(this COMMA_LOCKVAL_SRC_POS);
|
---|
491 | return m->bd->fHotPluggable;
|
---|
492 | }
|
---|
493 |
|
---|
494 | Utf8Str& MediumAttachment::i_getBandwidthGroup() const
|
---|
495 | {
|
---|
496 | return m->bd->strBandwidthGroup;
|
---|
497 | }
|
---|
498 |
|
---|
499 | bool MediumAttachment::i_matches(const Utf8Str &aControllerName, LONG aPort, LONG aDevice)
|
---|
500 | {
|
---|
501 | return ( aControllerName == m->bd->strControllerName
|
---|
502 | && aPort == m->bd->lPort
|
---|
503 | && aDevice == m->bd->lDevice);
|
---|
504 | }
|
---|
505 |
|
---|
506 | /** Must be called from under this object's write lock. */
|
---|
507 | void MediumAttachment::i_updateName(const Utf8Str &aName)
|
---|
508 | {
|
---|
509 | Assert(isWriteLockOnCurrentThread());
|
---|
510 |
|
---|
511 | m->bd.backup();
|
---|
512 | unconst(m->bd->strControllerName) = aName;
|
---|
513 | }
|
---|
514 |
|
---|
515 | /**
|
---|
516 | * Sets the medium of this attachment and unsets the "implicit" flag.
|
---|
517 | * @param aMedium
|
---|
518 | */
|
---|
519 | void MediumAttachment::i_updateMedium(const ComObjPtr<Medium> &aMedium)
|
---|
520 | {
|
---|
521 | Assert(isWriteLockOnCurrentThread());
|
---|
522 |
|
---|
523 | m->bd.backup();
|
---|
524 | m->bd->pMedium = aMedium;
|
---|
525 | m->bd->fImplicit = false;
|
---|
526 | m->fIsEjected = false;
|
---|
527 | }
|
---|
528 |
|
---|
529 | /** Must be called from under this object's write lock. */
|
---|
530 | void MediumAttachment::i_updatePassthrough(bool aPassthrough)
|
---|
531 | {
|
---|
532 | Assert(isWriteLockOnCurrentThread());
|
---|
533 |
|
---|
534 | m->bd.backup();
|
---|
535 | m->bd->fPassthrough = aPassthrough;
|
---|
536 | }
|
---|
537 |
|
---|
538 | /** Must be called from under this object's write lock. */
|
---|
539 | void MediumAttachment::i_updateTempEject(bool aTempEject)
|
---|
540 | {
|
---|
541 | Assert(isWriteLockOnCurrentThread());
|
---|
542 |
|
---|
543 | m->bd.backup();
|
---|
544 | m->bd->fTempEject = aTempEject;
|
---|
545 | }
|
---|
546 |
|
---|
547 | /** Must be called from under this object's write lock. */
|
---|
548 | void MediumAttachment::i_updateEjected()
|
---|
549 | {
|
---|
550 | Assert(isWriteLockOnCurrentThread());
|
---|
551 |
|
---|
552 | m->fIsEjected = true;
|
---|
553 | }
|
---|
554 |
|
---|
555 | /** Must be called from under this object's write lock. */
|
---|
556 | void MediumAttachment::i_updateNonRotational(bool aNonRotational)
|
---|
557 | {
|
---|
558 | Assert(isWriteLockOnCurrentThread());
|
---|
559 |
|
---|
560 | m->bd.backup();
|
---|
561 | m->bd->fNonRotational = aNonRotational;
|
---|
562 | }
|
---|
563 |
|
---|
564 | /** Must be called from under this object's write lock. */
|
---|
565 | void MediumAttachment::i_updateDiscard(bool aDiscard)
|
---|
566 | {
|
---|
567 | Assert(isWriteLockOnCurrentThread());
|
---|
568 |
|
---|
569 | m->bd.backup();
|
---|
570 | m->bd->fDiscard = aDiscard;
|
---|
571 | }
|
---|
572 |
|
---|
573 | /** Must be called from under this object's write lock. */
|
---|
574 | void MediumAttachment::i_updateHotPluggable(bool aHotPluggable)
|
---|
575 | {
|
---|
576 | Assert(isWriteLockOnCurrentThread());
|
---|
577 |
|
---|
578 | m->bd.backup();
|
---|
579 | m->bd->fHotPluggable = aHotPluggable;
|
---|
580 | }
|
---|
581 |
|
---|
582 | void MediumAttachment::i_updateBandwidthGroup(const Utf8Str &aBandwidthGroup)
|
---|
583 | {
|
---|
584 | LogFlowThisFuncEnter();
|
---|
585 | Assert(isWriteLockOnCurrentThread());
|
---|
586 |
|
---|
587 | m->bd.backup();
|
---|
588 | m->bd->strBandwidthGroup = aBandwidthGroup;
|
---|
589 |
|
---|
590 | LogFlowThisFuncLeave();
|
---|
591 | }
|
---|
592 |
|
---|
593 | void MediumAttachment::i_updateParentMachine(Machine * const pMachine)
|
---|
594 | {
|
---|
595 | LogFlowThisFunc(("ENTER - %s\n", i_getLogName()));
|
---|
596 | /* sanity */
|
---|
597 | AutoCaller autoCaller(this);
|
---|
598 | AssertComRCReturnVoid (autoCaller.rc());
|
---|
599 |
|
---|
600 | AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
|
---|
601 |
|
---|
602 | unconst(m->pMachine) = pMachine;
|
---|
603 |
|
---|
604 | LogFlowThisFunc(("LEAVE - %s\n", i_getLogName()));
|
---|
605 | }
|
---|
606 |
|
---|