[1] | 1 | /** @file
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| 2 | *
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| 3 | * VirtualBox COM class implementation
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| 4 | */
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| 5 |
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| 6 | /*
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[8155] | 7 | * Copyright (C) 2006-2007 Sun Microsystems, Inc.
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[1] | 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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[5999] | 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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[8155] | 16 | *
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| 17 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
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| 18 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
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| 19 | * additional information or have any questions.
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[1] | 20 | */
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| 21 |
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| 22 | #include "AudioAdapterImpl.h"
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| 23 | #include "MachineImpl.h"
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| 24 | #include "Logging.h"
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| 25 |
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[3348] | 26 | #include <iprt/cpputils.h>
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| 27 |
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[1] | 28 | // constructor / destructor
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| 29 | /////////////////////////////////////////////////////////////////////////////
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| 30 |
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[3348] | 31 | DEFINE_EMPTY_CTOR_DTOR (AudioAdapter)
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| 32 |
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[1] | 33 | HRESULT AudioAdapter::FinalConstruct()
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| 34 | {
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| 35 | return S_OK;
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| 36 | }
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| 37 |
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| 38 | void AudioAdapter::FinalRelease()
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| 39 | {
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[3348] | 40 | uninit ();
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[1] | 41 | }
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| 42 |
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| 43 | // public initializer/uninitializer for internal purposes only
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| 44 | /////////////////////////////////////////////////////////////////////////////
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| 45 |
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| 46 | /**
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[3348] | 47 | * Initializes the audio adapter object.
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[1] | 48 | *
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[3348] | 49 | * @param aParent Handle of the parent object.
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[1] | 50 | */
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[3348] | 51 | HRESULT AudioAdapter::init (Machine *aParent)
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[1] | 52 | {
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[3348] | 53 | LogFlowThisFunc (("aParent=%p\n", aParent));
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[1] | 54 |
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[3348] | 55 | ComAssertRet (aParent, E_INVALIDARG);
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[1] | 56 |
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[3348] | 57 | /* Enclose the state transition NotReady->InInit->Ready */
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| 58 | AutoInitSpan autoInitSpan (this);
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| 59 | AssertReturn (autoInitSpan.isOk(), E_UNEXPECTED);
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[1] | 60 |
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[3348] | 61 | unconst (mParent) = aParent;
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| 62 | /* mPeer is left null */
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[1] | 63 |
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| 64 | mData.allocate();
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| 65 |
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[3348] | 66 | /* Confirm a successful initialization */
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| 67 | autoInitSpan.setSucceeded();
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| 68 |
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[1] | 69 | return S_OK;
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| 70 | }
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| 71 |
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| 72 | /**
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| 73 | * Initializes the audio adapter object given another audio adapter object
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| 74 | * (a kind of copy constructor). This object shares data with
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| 75 | * the object passed as an argument.
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| 76 | *
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| 77 | * @note This object must be destroyed before the original object
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| 78 | * it shares data with is destroyed.
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[3348] | 79 | *
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| 80 | * @note Locks @a aThat object for reading.
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[1] | 81 | */
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[3348] | 82 | HRESULT AudioAdapter::init (Machine *aParent, AudioAdapter *aThat)
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[1] | 83 | {
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[3348] | 84 | LogFlowThisFunc (("aParent=%p, aThat=%p\n", aParent, aThat));
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[1] | 85 |
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[3348] | 86 | ComAssertRet (aParent && aThat, E_INVALIDARG);
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[1] | 87 |
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[3348] | 88 | /* Enclose the state transition NotReady->InInit->Ready */
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| 89 | AutoInitSpan autoInitSpan (this);
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| 90 | AssertReturn (autoInitSpan.isOk(), E_UNEXPECTED);
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[1] | 91 |
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[3348] | 92 | unconst (mParent) = aParent;
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| 93 | unconst (mPeer) = aThat;
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[1] | 94 |
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[3348] | 95 | AutoCaller thatCaller (aThat);
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| 96 | AssertComRCReturnRC (thatCaller.rc());
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[1] | 97 |
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[8083] | 98 | AutoReadLock thatLock (aThat);
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[3348] | 99 | mData.share (aThat->mData);
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| 100 |
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| 101 | /* Confirm a successful initialization */
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| 102 | autoInitSpan.setSucceeded();
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| 103 |
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[1] | 104 | return S_OK;
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| 105 | }
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| 106 |
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| 107 | /**
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| 108 | * Initializes the guest object given another guest object
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| 109 | * (a kind of copy constructor). This object makes a private copy of data
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| 110 | * of the original object passed as an argument.
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[3348] | 111 | *
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| 112 | * @note Locks @a aThat object for reading.
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[1] | 113 | */
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[3348] | 114 | HRESULT AudioAdapter::initCopy (Machine *aParent, AudioAdapter *aThat)
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[1] | 115 | {
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[3348] | 116 | LogFlowThisFunc (("aParent=%p, aThat=%p\n", aParent, aThat));
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[1] | 117 |
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[3348] | 118 | ComAssertRet (aParent && aThat, E_INVALIDARG);
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[1] | 119 |
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[3348] | 120 | /* Enclose the state transition NotReady->InInit->Ready */
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| 121 | AutoInitSpan autoInitSpan (this);
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| 122 | AssertReturn (autoInitSpan.isOk(), E_UNEXPECTED);
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[1] | 123 |
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[3348] | 124 | unconst (mParent) = aParent;
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| 125 | /* mPeer is left null */
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[1] | 126 |
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[3348] | 127 | AutoCaller thatCaller (aThat);
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| 128 | AssertComRCReturnRC (thatCaller.rc());
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[1] | 129 |
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[8083] | 130 | AutoReadLock thatLock (aThat);
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[3348] | 131 | mData.attachCopy (aThat->mData);
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| 132 |
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| 133 | /* Confirm a successful initialization */
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| 134 | autoInitSpan.setSucceeded();
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| 135 |
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[1] | 136 | return S_OK;
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| 137 | }
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| 138 |
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| 139 | /**
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| 140 | * Uninitializes the instance and sets the ready flag to FALSE.
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| 141 | * Called either from FinalRelease() or by the parent when it gets destroyed.
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| 142 | */
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| 143 | void AudioAdapter::uninit()
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| 144 | {
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[3348] | 145 | LogFlowThisFunc (("\n"));
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[1] | 146 |
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[3348] | 147 | /* Enclose the state transition Ready->InUninit->NotReady */
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| 148 | AutoUninitSpan autoUninitSpan (this);
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| 149 | if (autoUninitSpan.uninitDone())
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| 150 | return;
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[1] | 151 |
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| 152 | mData.free();
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| 153 |
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[3348] | 154 | unconst (mPeer).setNull();
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| 155 | unconst (mParent).setNull();
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[1] | 156 | }
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| 157 |
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| 158 | // IAudioAdapter properties
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| 159 | /////////////////////////////////////////////////////////////////////////////
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| 160 |
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[3348] | 161 | STDMETHODIMP AudioAdapter::COMGETTER(Enabled)(BOOL *aEnabled)
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[1] | 162 | {
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[3348] | 163 | if (!aEnabled)
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[1] | 164 | return E_POINTER;
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| 165 |
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[3348] | 166 | AutoCaller autoCaller (this);
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| 167 | CheckComRCReturnRC (autoCaller.rc());
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[1] | 168 |
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[8083] | 169 | AutoReadLock alock (this);
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[3348] | 170 |
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| 171 | *aEnabled = mData->mEnabled;
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| 172 |
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[1] | 173 | return S_OK;
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| 174 | }
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| 175 |
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[3348] | 176 | STDMETHODIMP AudioAdapter::COMSETTER(Enabled)(BOOL aEnabled)
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[1] | 177 | {
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[3348] | 178 | AutoCaller autoCaller (this);
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| 179 | CheckComRCReturnRC (autoCaller.rc());
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[1] | 180 |
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[3348] | 181 | /* the machine needs to be mutable */
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| 182 | Machine::AutoMutableStateDependency adep (mParent);
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| 183 | CheckComRCReturnRC (adep.rc());
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[1] | 184 |
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[8083] | 185 | AutoWriteLock alock (this);
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[3348] | 186 |
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| 187 | if (mData->mEnabled != aEnabled)
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[1] | 188 | {
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| 189 | mData.backup();
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[3348] | 190 | mData->mEnabled = aEnabled;
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[1] | 191 | }
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| 192 |
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| 193 | return S_OK;
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| 194 | }
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| 195 |
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[3348] | 196 | STDMETHODIMP AudioAdapter::COMGETTER(AudioDriver)(AudioDriverType_T *aAudioDriver)
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[1] | 197 | {
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[3348] | 198 | if (!aAudioDriver)
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[1] | 199 | return E_POINTER;
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| 200 |
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[3348] | 201 | AutoCaller autoCaller (this);
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| 202 | CheckComRCReturnRC (autoCaller.rc());
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[1] | 203 |
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[8083] | 204 | AutoReadLock alock (this);
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[3348] | 205 |
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| 206 | *aAudioDriver = mData->mAudioDriver;
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| 207 |
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[1] | 208 | return S_OK;
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| 209 | }
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| 210 |
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[3348] | 211 | STDMETHODIMP AudioAdapter::COMSETTER(AudioDriver)(AudioDriverType_T aAudioDriver)
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[1] | 212 | {
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[3348] | 213 | AutoCaller autoCaller (this);
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| 214 | CheckComRCReturnRC (autoCaller.rc());
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[1] | 215 |
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[3348] | 216 | /* the machine needs to be mutable */
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| 217 | Machine::AutoMutableStateDependency adep (mParent);
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| 218 | CheckComRCReturnRC (adep.rc());
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[1] | 219 |
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[8083] | 220 | AutoWriteLock alock (this);
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[3348] | 221 |
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[1] | 222 | HRESULT rc = S_OK;
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| 223 |
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[3348] | 224 | if (mData->mAudioDriver != aAudioDriver)
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[1] | 225 | {
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| 226 | /*
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| 227 | * which audio driver type are we supposed to use?
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| 228 | */
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[3348] | 229 | switch (aAudioDriver)
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[1] | 230 | {
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[7207] | 231 | case AudioDriverType_Null:
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[3668] | 232 | #ifdef RT_OS_WINDOWS
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[6056] | 233 | # ifdef VBOX_WITH_WINMM
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[7466] | 234 | case AudioDriverType_WinMM:
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[6056] | 235 | # endif
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[7466] | 236 | case AudioDriverType_DirectSound:
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[3668] | 237 | #endif /* RT_OS_WINDOWS */
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[7525] | 238 | #ifdef RT_OS_SOLARIS
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| 239 | case AudioDriverType_SolAudio:
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| 240 | #endif
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[3668] | 241 | #ifdef RT_OS_LINUX
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[7207] | 242 | case AudioDriverType_OSS:
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[6056] | 243 | # ifdef VBOX_WITH_ALSA
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[7207] | 244 | case AudioDriverType_ALSA:
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[6056] | 245 | # endif
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| 246 | # ifdef VBOX_WITH_PULSE
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[7207] | 247 | case AudioDriverType_Pulse:
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[6056] | 248 | # endif
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[3668] | 249 | #endif /* RT_OS_LINUX */
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| 250 | #ifdef RT_OS_DARWIN
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[7466] | 251 | case AudioDriverType_CoreAudio:
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[7207] | 252 | #endif
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[3668] | 253 | #ifdef RT_OS_OS2
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[7207] | 254 | case AudioDriverType_MMPM:
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| 255 | #endif
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[1] | 256 | {
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| 257 | mData.backup();
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[3348] | 258 | mData->mAudioDriver = aAudioDriver;
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[1] | 259 | break;
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| 260 | }
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[1551] | 261 |
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[1] | 262 | default:
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| 263 | {
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[3348] | 264 | AssertMsgFailed (("Wrong audio driver type %d\n",
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| 265 | aAudioDriver));
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[1] | 266 | rc = E_FAIL;
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| 267 | }
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| 268 | }
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| 269 | }
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| 270 |
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| 271 | return rc;
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| 272 | }
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| 273 |
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[6597] | 274 | STDMETHODIMP AudioAdapter::COMGETTER(AudioController)(AudioControllerType_T *aAudioController)
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| 275 | {
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| 276 | if (!aAudioController)
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| 277 | return E_POINTER;
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| 278 |
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| 279 | AutoCaller autoCaller (this);
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| 280 | CheckComRCReturnRC (autoCaller.rc());
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| 281 |
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[8083] | 282 | AutoReadLock alock (this);
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[6597] | 283 |
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| 284 | *aAudioController = mData->mAudioController;
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| 285 |
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| 286 | return S_OK;
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| 287 | }
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| 288 |
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| 289 | STDMETHODIMP AudioAdapter::COMSETTER(AudioController)(AudioControllerType_T aAudioController)
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| 290 | {
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| 291 | AutoCaller autoCaller (this);
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| 292 | CheckComRCReturnRC (autoCaller.rc());
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| 293 |
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| 294 | /* the machine needs to be mutable */
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| 295 | Machine::AutoMutableStateDependency adep (mParent);
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| 296 | CheckComRCReturnRC (adep.rc());
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| 297 |
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[8083] | 298 | AutoWriteLock alock (this);
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[6597] | 299 |
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| 300 | HRESULT rc = S_OK;
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| 301 |
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| 302 | if (mData->mAudioController != aAudioController)
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| 303 | {
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| 304 | /*
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| 305 | * which audio hardware type are we supposed to use?
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| 306 | */
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| 307 | switch (aAudioController)
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| 308 | {
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| 309 | case AudioControllerType_AC97:
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| 310 | case AudioControllerType_SB16:
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| 311 | mData.backup();
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| 312 | mData->mAudioController = aAudioController;
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| 313 | break;
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| 314 |
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| 315 | default:
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| 316 | {
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| 317 | AssertMsgFailed (("Wrong audio controller type %d\n",
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| 318 | aAudioController));
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| 319 | rc = E_FAIL;
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| 320 | }
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| 321 | }
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| 322 | }
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| 323 |
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| 324 | return rc;
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| 325 | }
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| 326 |
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[1] | 327 | // IAudioAdapter methods
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| 328 | /////////////////////////////////////////////////////////////////////////////
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| 329 |
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| 330 | // public methods only for internal purposes
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| 331 | /////////////////////////////////////////////////////////////////////////////
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| 332 |
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[7207] | 333 | /**
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[6076] | 334 | * Loads settings from the given machine node.
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| 335 | * May be called once right after this object creation.
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[7207] | 336 | *
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[6076] | 337 | * @param aMachineNode <Machine> node.
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[7207] | 338 | *
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| 339 | * @note Locks this object for writing.
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[6076] | 340 | */
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| 341 | HRESULT AudioAdapter::loadSettings (const settings::Key &aMachineNode)
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| 342 | {
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| 343 | using namespace settings;
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| 344 |
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| 345 | AssertReturn (!aMachineNode.isNull(), E_FAIL);
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| 346 |
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| 347 | AutoCaller autoCaller (this);
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| 348 | AssertComRCReturnRC (autoCaller.rc());
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| 349 |
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[8083] | 350 | AutoWriteLock alock (this);
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[6076] | 351 |
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| 352 | /* Note: we assume that the default values for attributes of optional
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| 353 | * nodes are assigned in the Data::Data() constructor and don't do it
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| 354 | * here. It implies that this method may only be called after constructing
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| 355 | * a new BIOSSettings object while all its data fields are in the default
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| 356 | * values. Exceptions are fields whose creation time defaults don't match
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| 357 | * values that should be applied when these fields are not explicitly set
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| 358 | * in the settings file (for backwards compatibility reasons). This takes
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| 359 | * place when a setting of a newly created object must default to A while
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| 360 | * the same setting of an object loaded from the old settings file must
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[7207] | 361 | * default to B. */
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[6076] | 362 |
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| 363 | /* AudioAdapter node (required) */
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| 364 | Key audioAdapterNode = aMachineNode.key ("AudioAdapter");
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| 365 |
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| 366 | /* is the adapter enabled? (required) */
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| 367 | mData->mEnabled = audioAdapterNode.value <bool> ("enabled");
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| 368 |
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[6597] | 369 | /* now check the audio adapter (not required, default is AC97) */
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| 370 | const char *controller = audioAdapterNode.stringValue ("controller");
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| 371 | if (strcmp (controller, "SB16") == 0)
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| 372 | mData->mAudioController = AudioControllerType_SB16;
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| 373 | else
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| 374 | mData->mAudioController = AudioControllerType_AC97;
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| 375 |
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[6076] | 376 | /* now check the audio driver (required) */
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| 377 | const char *driver = audioAdapterNode.stringValue ("driver");
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[7207] | 378 | mData->mAudioDriver = AudioDriverType_Null;
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[7466] | 379 | if (strcmp (driver, "Null") == 0)
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[6076] | 380 | ; /* Null has been set above */
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| 381 | #ifdef RT_OS_WINDOWS
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[7466] | 382 | else if (strcmp (driver, "WinMM") == 0)
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[6076] | 383 | #ifdef VBOX_WITH_WINMM
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[7466] | 384 | mData->mAudioDriver = AudioDriverType_WinMM;
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[6076] | 385 | #else
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| 386 | /* fall back to dsound */
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[7466] | 387 | mData->mAudioDriver = AudioDriverType_DirectSound;
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[6076] | 388 | #endif
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[7466] | 389 | else if (strcmp (driver, "DirectSound") == 0)
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| 390 | mData->mAudioDriver = AudioDriverType_DirectSound;
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[6076] | 391 | #endif // RT_OS_WINDOWS
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[7525] | 392 | #ifdef RT_OS_SOLARIS
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| 393 | else if (strcmp (driver, "SolAudio") == 0)
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| 394 | mData->mAudioDriver = AudioDriverType_SolAudio;
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| 395 | #endif // RT_OS_SOLARIS
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[6076] | 396 | #ifdef RT_OS_LINUX
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[7466] | 397 | else if (strcmp (driver, "OSS") == 0)
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[7207] | 398 | mData->mAudioDriver = AudioDriverType_OSS;
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[7466] | 399 | else if (strcmp (driver, "ALSA") == 0)
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[6076] | 400 | # ifdef VBOX_WITH_ALSA
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[7207] | 401 | mData->mAudioDriver = AudioDriverType_ALSA;
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[6076] | 402 | # else
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| 403 | /* fall back to OSS */
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[7207] | 404 | mData->mAudioDriver = AudioDriverType_OSS;
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[6076] | 405 | # endif
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[7466] | 406 | else if (strcmp (driver, "Pulse") == 0)
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[6076] | 407 | # ifdef VBOX_WITH_PULSE
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[7207] | 408 | mData->mAudioDriver = AudioDriverType_Pulse;
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[6076] | 409 | # else
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| 410 | /* fall back to OSS */
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[7207] | 411 | mData->mAudioDriver = AudioDriverType_OSS;
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[6076] | 412 | # endif
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| 413 | #endif // RT_OS_LINUX
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| 414 | #ifdef RT_OS_DARWIN
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[7466] | 415 | else if (strcmp (driver, "CoreAudio") == 0)
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| 416 | mData->mAudioDriver = AudioDriverType_CoreAudio;
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[6076] | 417 | #endif
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| 418 | #ifdef RT_OS_OS2
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[7466] | 419 | else if (strcmp (driver, "MMPM") == 0)
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[7207] | 420 | mData->mAudioDriver = AudioDriverType_MMPM;
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[6076] | 421 | #endif
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| 422 | else
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| 423 | AssertMsgFailed (("Invalid driver '%s'\n", driver));
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| 424 |
|
---|
| 425 | return S_OK;
|
---|
| 426 | }
|
---|
| 427 |
|
---|
[7207] | 428 | /**
|
---|
[6076] | 429 | * Saves settings to the given machine node.
|
---|
[7207] | 430 | *
|
---|
[6076] | 431 | * @param aMachineNode <Machine> node.
|
---|
[7207] | 432 | *
|
---|
| 433 | * @note Locks this object for reading.
|
---|
[6076] | 434 | */
|
---|
| 435 | HRESULT AudioAdapter::saveSettings (settings::Key &aMachineNode)
|
---|
| 436 | {
|
---|
| 437 | using namespace settings;
|
---|
| 438 |
|
---|
| 439 | AssertReturn (!aMachineNode.isNull(), E_FAIL);
|
---|
| 440 |
|
---|
| 441 | AutoCaller autoCaller (this);
|
---|
| 442 | AssertComRCReturnRC (autoCaller.rc());
|
---|
| 443 |
|
---|
[8083] | 444 | AutoReadLock alock (this);
|
---|
[6076] | 445 |
|
---|
| 446 | Key node = aMachineNode.createKey ("AudioAdapter");
|
---|
| 447 |
|
---|
[6597] | 448 | const char *controllerStr = NULL;
|
---|
| 449 | switch (mData->mAudioController)
|
---|
| 450 | {
|
---|
| 451 | case AudioControllerType_SB16:
|
---|
| 452 | {
|
---|
| 453 | controllerStr = "SB16";
|
---|
| 454 | break;
|
---|
| 455 | }
|
---|
| 456 | default:
|
---|
| 457 | {
|
---|
| 458 | controllerStr = "AC97";
|
---|
| 459 | break;
|
---|
| 460 | }
|
---|
| 461 | }
|
---|
| 462 | node.setStringValue ("controller", controllerStr);
|
---|
| 463 |
|
---|
[6076] | 464 | const char *driverStr = NULL;
|
---|
| 465 | switch (mData->mAudioDriver)
|
---|
| 466 | {
|
---|
[7207] | 467 | case AudioDriverType_Null:
|
---|
[6076] | 468 | {
|
---|
[7466] | 469 | driverStr = "Null";
|
---|
[6076] | 470 | break;
|
---|
| 471 | }
|
---|
| 472 | #ifdef RT_OS_WINDOWS
|
---|
[7466] | 473 | case AudioDriverType_WinMM:
|
---|
[6076] | 474 | # ifdef VBOX_WITH_WINMM
|
---|
| 475 | {
|
---|
[7466] | 476 | driverStr = "WinMM";
|
---|
[6076] | 477 | break;
|
---|
| 478 | }
|
---|
| 479 | # endif
|
---|
[7466] | 480 | case AudioDriverType_DirectSound:
|
---|
[6076] | 481 | {
|
---|
[7466] | 482 | driverStr = "DirectSound";
|
---|
[6076] | 483 | break;
|
---|
| 484 | }
|
---|
| 485 | #endif /* RT_OS_WINDOWS */
|
---|
[7525] | 486 | #ifdef RT_OS_SOLARIS
|
---|
| 487 | case AudioDriverType_SolAudio:
|
---|
| 488 | {
|
---|
| 489 | driverStr = "SolAudio";
|
---|
| 490 | break;
|
---|
| 491 | }
|
---|
| 492 | #endif
|
---|
[6076] | 493 | #ifdef RT_OS_LINUX
|
---|
[7207] | 494 | case AudioDriverType_ALSA:
|
---|
[6076] | 495 | # ifdef VBOX_WITH_ALSA
|
---|
| 496 | {
|
---|
[7466] | 497 | driverStr = "ALSA";
|
---|
[6076] | 498 | break;
|
---|
| 499 | }
|
---|
| 500 | # endif
|
---|
[7207] | 501 | case AudioDriverType_Pulse:
|
---|
[6076] | 502 | # ifdef VBOX_WITH_PULSE
|
---|
| 503 | {
|
---|
[7466] | 504 | driverStr = "Pulse";
|
---|
[6076] | 505 | break;
|
---|
| 506 | }
|
---|
| 507 | # endif
|
---|
[7207] | 508 | case AudioDriverType_OSS:
|
---|
[6076] | 509 | {
|
---|
[7466] | 510 | driverStr = "OSS";
|
---|
[6076] | 511 | break;
|
---|
| 512 | }
|
---|
| 513 | #endif /* RT_OS_LINUX */
|
---|
| 514 | #ifdef RT_OS_DARWIN
|
---|
[7466] | 515 | case AudioDriverType_CoreAudio:
|
---|
[6076] | 516 | {
|
---|
[7466] | 517 | driverStr = "CoreAudio";
|
---|
[6076] | 518 | break;
|
---|
| 519 | }
|
---|
| 520 | #endif
|
---|
| 521 | #ifdef RT_OS_OS2
|
---|
[7207] | 522 | case AudioDriverType_MMPM:
|
---|
[6076] | 523 | {
|
---|
[7466] | 524 | driverStr = "MMPM";
|
---|
[6076] | 525 | break;
|
---|
| 526 | }
|
---|
| 527 | #endif
|
---|
| 528 | default:
|
---|
| 529 | ComAssertMsgFailedRet (("Wrong audio driver type! driver = %d\n",
|
---|
| 530 | mData->mAudioDriver),
|
---|
| 531 | E_FAIL);
|
---|
| 532 | }
|
---|
| 533 | node.setStringValue ("driver", driverStr);
|
---|
| 534 |
|
---|
| 535 | node.setValue <bool> ("enabled", !!mData->mEnabled);
|
---|
| 536 |
|
---|
| 537 | return S_OK;
|
---|
| 538 | }
|
---|
| 539 |
|
---|
[7207] | 540 | /**
|
---|
[3348] | 541 | * @note Locks this object for writing.
|
---|
| 542 | */
|
---|
| 543 | bool AudioAdapter::rollback()
|
---|
[1] | 544 | {
|
---|
[3348] | 545 | /* sanity */
|
---|
| 546 | AutoCaller autoCaller (this);
|
---|
| 547 | AssertComRCReturn (autoCaller.rc(), false);
|
---|
| 548 |
|
---|
[8083] | 549 | AutoWriteLock alock (this);
|
---|
[3348] | 550 |
|
---|
| 551 | bool changed = false;
|
---|
| 552 |
|
---|
[1] | 553 | if (mData.isBackedUp())
|
---|
| 554 | {
|
---|
[3348] | 555 | /* we need to check all data to see whether anything will be changed
|
---|
| 556 | * after rollback */
|
---|
| 557 | changed = mData.hasActualChanges();
|
---|
| 558 | mData.rollback();
|
---|
| 559 | }
|
---|
| 560 |
|
---|
| 561 | return changed;
|
---|
| 562 | }
|
---|
| 563 |
|
---|
[7207] | 564 | /**
|
---|
[3348] | 565 | * @note Locks this object for writing, together with the peer object (also
|
---|
| 566 | * for writing) if there is one.
|
---|
| 567 | */
|
---|
| 568 | void AudioAdapter::commit()
|
---|
| 569 | {
|
---|
| 570 | /* sanity */
|
---|
| 571 | AutoCaller autoCaller (this);
|
---|
| 572 | AssertComRCReturnVoid (autoCaller.rc());
|
---|
| 573 |
|
---|
| 574 | /* sanity too */
|
---|
[7992] | 575 | AutoCaller peerCaller (mPeer);
|
---|
| 576 | AssertComRCReturnVoid (peerCaller.rc());
|
---|
[3348] | 577 |
|
---|
[7992] | 578 | /* lock both for writing since we modify both (mPeer is "master" so locked
|
---|
| 579 | * first) */
|
---|
| 580 | AutoMultiWriteLock2 alock (mPeer, this);
|
---|
[3348] | 581 |
|
---|
| 582 | if (mData.isBackedUp())
|
---|
| 583 | {
|
---|
[1] | 584 | mData.commit();
|
---|
| 585 | if (mPeer)
|
---|
| 586 | {
|
---|
[3348] | 587 | /* attach new data to the peer and reshare it */
|
---|
[1] | 588 | mPeer->mData.attach (mData);
|
---|
| 589 | }
|
---|
| 590 | }
|
---|
| 591 | }
|
---|
| 592 |
|
---|
[7207] | 593 | /**
|
---|
[3348] | 594 | * @note Locks this object for writing, together with the peer object
|
---|
| 595 | * represented by @a aThat (locked for reading).
|
---|
| 596 | */
|
---|
[1] | 597 | void AudioAdapter::copyFrom (AudioAdapter *aThat)
|
---|
| 598 | {
|
---|
[3348] | 599 | AssertReturnVoid (aThat != NULL);
|
---|
[1] | 600 |
|
---|
[3348] | 601 | /* sanity */
|
---|
| 602 | AutoCaller autoCaller (this);
|
---|
| 603 | AssertComRCReturnVoid (autoCaller.rc());
|
---|
| 604 |
|
---|
| 605 | /* sanity too */
|
---|
[7992] | 606 | AutoCaller thatCaller (aThat);
|
---|
[3348] | 607 | AssertComRCReturnVoid (thatCaller.rc());
|
---|
| 608 |
|
---|
[7992] | 609 | /* peer is not modified, lock it for reading (aThat is "master" so locked
|
---|
| 610 | * first) */
|
---|
| 611 | AutoMultiLock2 alock (aThat->rlock(), this->wlock());
|
---|
[3348] | 612 |
|
---|
| 613 | /* this will back up current data */
|
---|
[1] | 614 | mData.assignCopy (aThat->mData);
|
---|
| 615 | }
|
---|