| 1 | /* $Id: ProgressImpl.h 31625 2010-08-13 00:33:16Z 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) 2006-2010 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 | #ifndef ____H_PROGRESSIMPL
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| 20 | #define ____H_PROGRESSIMPL
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| 21 |
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| 22 | #include "VirtualBoxBase.h"
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| 23 |
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| 24 | #include <iprt/semaphore.h>
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| 25 |
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| 26 | ////////////////////////////////////////////////////////////////////////////////
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| 27 |
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| 28 | /**
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| 29 | * Base component class for progress objects.
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| 30 | */
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| 31 | class ATL_NO_VTABLE ProgressBase :
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| 32 | public VirtualBoxBase,
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| 33 | VBOX_SCRIPTABLE_IMPL(IProgress)
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| 34 | {
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| 35 | protected:
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| 36 |
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| 37 | // VIRTUALBOXBASE_ADD_ERRORINFO_SUPPORT(ProgressBase, IProgress)
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| 38 | // cannot be added here or Windows will not buuld; as a result, ProgressBase cannot be
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| 39 | // instantiated, but we're not doing that anyway (but only its children)
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| 40 |
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| 41 | DECLARE_EMPTY_CTOR_DTOR (ProgressBase)
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| 42 |
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| 43 | HRESULT FinalConstruct();
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| 44 |
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| 45 | // protected initializer/uninitializer for internal purposes only
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| 46 | HRESULT protectedInit(AutoInitSpan &aAutoInitSpan,
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| 47 | #if !defined (VBOX_COM_INPROC)
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| 48 | VirtualBox *aParent,
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| 49 | #endif
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| 50 | IUnknown *aInitiator,
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| 51 | CBSTR aDescription, OUT_GUID aId = NULL);
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| 52 | HRESULT protectedInit(AutoInitSpan &aAutoInitSpan);
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| 53 | void protectedUninit(AutoUninitSpan &aAutoUninitSpan);
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| 54 |
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| 55 | public:
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| 56 |
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| 57 | // IProgress properties
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| 58 | STDMETHOD(COMGETTER(Id)) (BSTR *aId);
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| 59 | STDMETHOD(COMGETTER(Description)) (BSTR *aDescription);
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| 60 | STDMETHOD(COMGETTER(Initiator)) (IUnknown **aInitiator);
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| 61 |
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| 62 | // IProgress properties
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| 63 | STDMETHOD(COMGETTER(Cancelable)) (BOOL *aCancelable);
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| 64 | STDMETHOD(COMGETTER(Percent)) (ULONG *aPercent);
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| 65 | STDMETHOD(COMGETTER(TimeRemaining)) (LONG *aTimeRemaining);
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| 66 | STDMETHOD(COMGETTER(Completed)) (BOOL *aCompleted);
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| 67 | STDMETHOD(COMGETTER(Canceled)) (BOOL *aCanceled);
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| 68 | STDMETHOD(COMGETTER(ResultCode)) (LONG *aResultCode);
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| 69 | STDMETHOD(COMGETTER(ErrorInfo)) (IVirtualBoxErrorInfo **aErrorInfo);
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| 70 | STDMETHOD(COMGETTER(OperationCount)) (ULONG *aOperationCount);
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| 71 | STDMETHOD(COMGETTER(Operation)) (ULONG *aOperation);
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| 72 | STDMETHOD(COMGETTER(OperationDescription)) (BSTR *aOperationDescription);
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| 73 | STDMETHOD(COMGETTER(OperationPercent)) (ULONG *aOperationPercent);
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| 74 | STDMETHOD(COMGETTER(OperationWeight)) (ULONG *aOperationWeight);
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| 75 | STDMETHOD(COMSETTER(Timeout)) (ULONG aTimeout);
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| 76 | STDMETHOD(COMGETTER(Timeout)) (ULONG *aTimeout);
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| 77 |
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| 78 | // public methods only for internal purposes
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| 79 |
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| 80 | bool setCancelCallback(void (*pfnCallback)(void *), void *pvUser);
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| 81 |
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| 82 |
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| 83 | // unsafe inline public methods for internal purposes only (ensure there is
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| 84 | // a caller and a read lock before calling them!)
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| 85 |
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| 86 | BOOL getCompleted() const { return mCompleted; }
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| 87 | HRESULT getResultCode() const { return mResultCode; }
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| 88 | double calcTotalPercent();
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| 89 |
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| 90 | protected:
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| 91 | void checkForAutomaticTimeout(void);
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| 92 |
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| 93 | #if !defined (VBOX_COM_INPROC)
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| 94 | /** Weak parent. */
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| 95 | VirtualBox * const mParent;
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| 96 | #endif
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| 97 |
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| 98 | const ComPtr<IUnknown> mInitiator;
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| 99 |
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| 100 | const Guid mId;
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| 101 | const Bstr mDescription;
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| 102 |
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| 103 | uint64_t m_ullTimestamp; // progress object creation timestamp, for ETA computation
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| 104 |
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| 105 | void (*m_pfnCancelCallback)(void *);
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| 106 | void *m_pvCancelUserArg;
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| 107 |
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| 108 | /* The fields below are to be properly initalized by subclasses */
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| 109 |
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| 110 | BOOL mCompleted;
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| 111 | BOOL mCancelable;
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| 112 | BOOL mCanceled;
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| 113 | HRESULT mResultCode;
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| 114 | ComPtr<IVirtualBoxErrorInfo> mErrorInfo;
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| 115 |
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| 116 | ULONG m_cOperations; // number of operations (so that progress dialog can display something like 1/3)
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| 117 | ULONG m_ulTotalOperationsWeight; // sum of weights of all operations, given to constructor
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| 118 |
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| 119 | ULONG m_ulOperationsCompletedWeight; // summed-up weight of operations that have been completed; initially 0
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| 120 |
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| 121 | ULONG m_ulCurrentOperation; // operations counter, incremented with each setNextOperation()
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| 122 | Bstr m_bstrOperationDescription; // name of current operation; initially from constructor, changed with setNextOperation()
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| 123 | ULONG m_ulCurrentOperationWeight; // weight of current operation, given to setNextOperation()
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| 124 | ULONG m_ulOperationPercent; // percentage of current operation, set with setCurrentOperationProgress()
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| 125 | ULONG m_cMsTimeout; /**< Automatic timeout value. 0 means none. */
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| 126 | };
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| 127 |
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| 128 | ////////////////////////////////////////////////////////////////////////////////
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| 129 |
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| 130 | /**
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| 131 | * Normal progress object.
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| 132 | */
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| 133 | class ATL_NO_VTABLE Progress :
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| 134 | public ProgressBase
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| 135 | {
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| 136 |
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| 137 | public:
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| 138 | VIRTUALBOXBASE_ADD_ERRORINFO_SUPPORT(Progress, IProgress)
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| 139 |
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| 140 | DECLARE_NOT_AGGREGATABLE (Progress)
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| 141 |
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| 142 | DECLARE_PROTECT_FINAL_CONSTRUCT()
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| 143 |
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| 144 | BEGIN_COM_MAP (Progress)
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| 145 | COM_INTERFACE_ENTRY (ISupportErrorInfo)
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| 146 | COM_INTERFACE_ENTRY (IProgress)
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| 147 | COM_INTERFACE_ENTRY2 (IDispatch, IProgress)
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| 148 | END_COM_MAP()
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| 149 |
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| 150 | HRESULT FinalConstruct();
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| 151 | void FinalRelease();
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| 152 |
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| 153 | // public initializer/uninitializer for internal purposes only
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| 154 |
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| 155 | /**
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| 156 | * Simplified constructor for progress objects that have only one
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| 157 | * operation as a task.
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| 158 | * @param aParent
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| 159 | * @param aInitiator
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| 160 | * @param aDescription
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| 161 | * @param aCancelable
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| 162 | * @param aId
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| 163 | * @return
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| 164 | */
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| 165 | HRESULT init(
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| 166 | #if !defined (VBOX_COM_INPROC)
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| 167 | VirtualBox *aParent,
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| 168 | #endif
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| 169 | IUnknown *aInitiator,
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| 170 | CBSTR aDescription,
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| 171 | BOOL aCancelable,
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| 172 | OUT_GUID aId = NULL)
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| 173 | {
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| 174 | return init(
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| 175 | #if !defined (VBOX_COM_INPROC)
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| 176 | aParent,
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| 177 | #endif
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| 178 | aInitiator,
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| 179 | aDescription,
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| 180 | aCancelable,
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| 181 | 1, // cOperations
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| 182 | 1, // ulTotalOperationsWeight
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| 183 | aDescription, // bstrFirstOperationDescription
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| 184 | 1, // ulFirstOperationWeight
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| 185 | aId);
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| 186 | }
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| 187 |
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| 188 | /**
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| 189 | * Not quite so simplified constructor for progress objects that have
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| 190 | * more than one operation, but all sub-operations are weighed the same.
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| 191 | * @param aParent
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| 192 | * @param aInitiator
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| 193 | * @param aDescription
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| 194 | * @param aCancelable
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| 195 | * @param cOperations
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| 196 | * @param bstrFirstOperationDescription
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| 197 | * @param aId
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| 198 | * @return
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| 199 | */
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| 200 | HRESULT init(
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| 201 | #if !defined (VBOX_COM_INPROC)
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| 202 | VirtualBox *aParent,
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| 203 | #endif
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| 204 | IUnknown *aInitiator,
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| 205 | CBSTR aDescription, BOOL aCancelable,
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| 206 | ULONG cOperations,
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| 207 | CBSTR bstrFirstOperationDescription,
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| 208 | OUT_GUID aId = NULL)
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| 209 | {
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| 210 | return init(
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| 211 | #if !defined (VBOX_COM_INPROC)
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| 212 | aParent,
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| 213 | #endif
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| 214 | aInitiator,
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| 215 | aDescription,
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| 216 | aCancelable,
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| 217 | cOperations, // cOperations
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| 218 | cOperations, // ulTotalOperationsWeight = cOperations
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| 219 | bstrFirstOperationDescription, // bstrFirstOperationDescription
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| 220 | 1, // ulFirstOperationWeight: weigh them all the same
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| 221 | aId);
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| 222 | }
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| 223 |
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| 224 | HRESULT init(
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| 225 | #if !defined (VBOX_COM_INPROC)
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| 226 | VirtualBox *aParent,
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| 227 | #endif
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| 228 | IUnknown *aInitiator,
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| 229 | CBSTR aDescription,
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| 230 | BOOL aCancelable,
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| 231 | ULONG cOperations,
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| 232 | ULONG ulTotalOperationsWeight,
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| 233 | CBSTR bstrFirstOperationDescription,
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| 234 | ULONG ulFirstOperationWeight,
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| 235 | OUT_GUID aId = NULL);
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| 236 |
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| 237 | HRESULT init(BOOL aCancelable,
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| 238 | ULONG aOperationCount,
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| 239 | CBSTR aOperationDescription);
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| 240 |
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| 241 | void uninit();
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| 242 |
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| 243 | // IProgress methods
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| 244 | STDMETHOD(WaitForCompletion)(LONG aTimeout);
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| 245 | STDMETHOD(WaitForOperationCompletion)(ULONG aOperation, LONG aTimeout);
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| 246 | STDMETHOD(Cancel)();
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| 247 |
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| 248 | STDMETHOD(SetCurrentOperationProgress)(ULONG aPercent);
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| 249 | STDMETHOD(SetNextOperation)(IN_BSTR bstrNextOperationDescription, ULONG ulNextOperationsWeight);
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| 250 |
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| 251 | // public methods only for internal purposes
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| 252 |
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| 253 | HRESULT setResultCode(HRESULT aResultCode);
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| 254 |
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| 255 | HRESULT notifyComplete(HRESULT aResultCode);
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| 256 | HRESULT notifyComplete(HRESULT aResultCode,
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| 257 | const GUID &aIID,
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| 258 | const char *pcszComponent,
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| 259 | const char *aText,
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| 260 | ...);
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| 261 | HRESULT notifyCompleteV(HRESULT aResultCode,
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| 262 | const GUID &aIID,
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| 263 | const char *pcszComponent,
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| 264 | const char *aText,
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| 265 | va_list va);
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| 266 | bool notifyPointOfNoReturn(void);
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| 267 |
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| 268 | private:
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| 269 |
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| 270 | RTSEMEVENTMULTI mCompletedSem;
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| 271 | ULONG mWaitersCount;
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| 272 | };
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| 273 |
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| 274 | #endif /* ____H_PROGRESSIMPL */
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| 275 |
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