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/* $Id: ProgressImpl.h $ */
/** @file
*
* VirtualBox COM class implementation
*/
/*
* Copyright (C) 2006-2022 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#ifndef MAIN_INCLUDED_ProgressImpl_h
#define MAIN_INCLUDED_ProgressImpl_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
#include "ProgressWrap.h"
#include "VirtualBoxBase.h"
#include "EventImpl.h"
#include <iprt/semaphore.h>
////////////////////////////////////////////////////////////////////////////////
/**
* Class for progress objects.
*/
class ATL_NO_VTABLE Progress :
public ProgressWrap
{
public:
DECLARE_NOT_AGGREGATABLE(Progress)
HRESULT FinalConstruct();
void FinalRelease();
// public initializer/uninitializer for internal purposes only
/**
* Simplified constructor for progress objects that have only one
* operation as a task.
* @param aParent
* @param aInitiator
* @param aDescription
* @param aCancelable
* @return
*/
HRESULT init(
#if !defined(VBOX_COM_INPROC)
VirtualBox *aParent,
#endif
IUnknown *aInitiator,
const Utf8Str &aDescription,
BOOL aCancelable)
{
return init(
#if !defined(VBOX_COM_INPROC)
aParent,
#endif
aInitiator,
aDescription,
aCancelable,
1, // cOperations
1, // ulTotalOperationsWeight
aDescription, // aFirstOperationDescription
1); // ulFirstOperationWeight
}
/**
* Not quite so simplified constructor for progress objects that have
* more than one operation, but all sub-operations are weighed the same.
* @param aParent
* @param aInitiator
* @param aDescription
* @param aCancelable
* @param cOperations
* @param aFirstOperationDescription
* @return
*/
HRESULT init(
#if !defined(VBOX_COM_INPROC)
VirtualBox *aParent,
#endif
IUnknown *aInitiator,
const Utf8Str &aDescription, BOOL aCancelable,
ULONG cOperations,
const Utf8Str &aFirstOperationDescription)
{
return init(
#if !defined(VBOX_COM_INPROC)
aParent,
#endif
aInitiator,
aDescription,
aCancelable,
cOperations, // cOperations
cOperations, // ulTotalOperationsWeight = cOperations
aFirstOperationDescription, // aFirstOperationDescription
1); // ulFirstOperationWeight: weigh them all the same
}
HRESULT init(
#if !defined(VBOX_COM_INPROC)
VirtualBox *aParent,
#endif
IUnknown *aInitiator,
const Utf8Str &aDescription,
BOOL aCancelable,
ULONG cOperations,
ULONG ulTotalOperationsWeight,
const Utf8Str &aFirstOperationDescription,
ULONG ulFirstOperationWeight);
HRESULT init(BOOL aCancelable,
ULONG aOperationCount,
const Utf8Str &aOperationDescription);
void uninit();
// public methods only for internal purposes
HRESULT i_notifyComplete(HRESULT aResultCode);
HRESULT i_notifyComplete(HRESULT aResultCode,
const GUID &aIID,
const char *pcszComponent,
const char *aText,
...);
HRESULT i_notifyCompleteV(HRESULT aResultCode,
const GUID &aIID,
const char *pcszComponent,
const char *aText,
va_list va);
HRESULT i_notifyCompleteBoth(HRESULT aResultCode,
int vrc,
const GUID &aIID,
const char *pcszComponent,
const char *aText,
...);
HRESULT i_notifyCompleteBothV(HRESULT aResultCode,
int vrc,
const GUID &aIID,
const char *pcszComponent,
const char *aText,
va_list va);
bool i_setCancelCallback(void (*pfnCallback)(void *), void *pvUser);
static DECLCALLBACK(int) i_iprtProgressCallback(unsigned uPercentage, void *pvUser);
static DECLCALLBACK(int) i_vdProgressCallback(void *pvUser, unsigned uPercentage);
protected:
DECLARE_COMMON_CLASS_METHODS(Progress)
#if !defined(VBOX_COM_INPROC)
/** Weak parent. */
VirtualBox * const mParent;
#endif
const ComObjPtr<EventSource> pEventSource;
const ComPtr<IUnknown> mInitiator;
const Guid mId;
const com::Utf8Str mDescription;
uint64_t m_ullTimestamp; // progress object creation timestamp, for ETA computation
void (*m_pfnCancelCallback)(void *);
void *m_pvCancelUserArg;
/* The fields below are to be properly initialized by subclasses */
BOOL mCompleted;
BOOL mCancelable;
BOOL mCanceled;
HRESULT mResultCode;
ComPtr<IVirtualBoxErrorInfo> mErrorInfo;
ULONG m_cOperations; // number of operations (so that progress dialog can
// display something like 1/3)
ULONG m_ulTotalOperationsWeight; // sum of weights of all operations, given to constructor
ULONG m_ulOperationsCompletedWeight; // summed-up weight of operations that have been completed; initially 0
ULONG m_ulCurrentOperation; // operations counter, incremented with
// each setNextOperation()
com::Utf8Str m_operationDescription; // name of current operation; initially
// from constructor, changed with setNextOperation()
ULONG m_ulCurrentOperationWeight; // weight of current operation, given to setNextOperation()
ULONG m_ulOperationPercent; // percentage of current operation, set with setCurrentOperationProgress()
ULONG m_cMsTimeout; /**< Automatic timeout value. 0 means none. */
private:
// wrapped IProgress properties
HRESULT getId(com::Guid &aId);
HRESULT getDescription(com::Utf8Str &aDescription);
HRESULT getInitiator(ComPtr<IUnknown> &aInitiator);
HRESULT getCancelable(BOOL *aCancelable);
HRESULT getPercent(ULONG *aPercent);
HRESULT getTimeRemaining(LONG *aTimeRemaining);
HRESULT getCompleted(BOOL *aCompleted);
HRESULT getCanceled(BOOL *aCanceled);
HRESULT getResultCode(LONG *aResultCode);
HRESULT getErrorInfo(ComPtr<IVirtualBoxErrorInfo> &aErrorInfo);
HRESULT getOperationCount(ULONG *aOperationCount);
HRESULT getOperation(ULONG *aOperation);
HRESULT getOperationDescription(com::Utf8Str &aOperationDescription);
HRESULT getOperationPercent(ULONG *aOperationPercent);
HRESULT getOperationWeight(ULONG *aOperationWeight);
HRESULT getTimeout(ULONG *aTimeout);
HRESULT setTimeout(ULONG aTimeout);
HRESULT getEventSource(ComPtr<IEventSource> &aEventSource);
// wrapped IProgress methods
HRESULT waitForCompletion(LONG aTimeout);
HRESULT waitForOperationCompletion(ULONG aOperation,
LONG aTimeout);
HRESULT cancel();
// wrapped IInternalProgressControl methods
HRESULT setCurrentOperationProgress(ULONG aPercent);
HRESULT waitForOtherProgressCompletion(const ComPtr<IProgress> &aProgressOther,
ULONG aTimeoutMS);
HRESULT setNextOperation(const com::Utf8Str &aNextOperationDescription,
ULONG aNextOperationsWeight);
HRESULT notifyPointOfNoReturn();
HRESULT notifyComplete(LONG aResultCode,
const ComPtr<IVirtualBoxErrorInfo> &aErrorInfo);
// internal helper methods
HRESULT i_notifyCompleteWorker(HRESULT aResultCode, const ComPtr<IVirtualBoxErrorInfo> &aErrorInfo);
double i_calcTotalPercent();
void i_checkForAutomaticTimeout(void);
RTSEMEVENTMULTI mCompletedSem;
ULONG mWaitersCount;
private:
DECLARE_CLS_COPY_CTOR_ASSIGN_NOOP(Progress); /* Shuts up MSC warning C4625. */
};
#endif /* !MAIN_INCLUDED_ProgressImpl_h */
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