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/* $Id: EventImpl.h $ */
/** @file
* VirtualBox COM IEvent implementation
*/
/*
* Copyright (C) 2010-2023 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_EventImpl_h
#define MAIN_INCLUDED_EventImpl_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
#include "EventWrap.h"
#include "EventSourceWrap.h"
#include "VetoEventWrap.h"
class ATL_NO_VTABLE VBoxEvent
: public EventWrap
{
public:
DECLARE_COMMON_CLASS_METHODS(VBoxEvent)
HRESULT FinalConstruct();
void FinalRelease();
// public initializer/uninitializer for internal purposes only
HRESULT init(IEventSource *aSource, VBoxEventType_T aType, BOOL aWaitable);
void uninit();
private:
// wrapped IEvent properties
HRESULT getType(VBoxEventType_T *aType);
HRESULT getSource(ComPtr<IEventSource> &aSource);
HRESULT getWaitable(BOOL *aWaitable);
// wrapped IEvent methods
HRESULT setProcessed();
HRESULT waitProcessed(LONG aTimeout, BOOL *aResult);
struct Data;
Data* m;
};
class ATL_NO_VTABLE VBoxVetoEvent
: public VetoEventWrap
{
public:
DECLARE_COMMON_CLASS_METHODS(VBoxVetoEvent)
HRESULT FinalConstruct();
void FinalRelease();
// public initializer/uninitializer for internal purposes only
HRESULT init(IEventSource *aSource, VBoxEventType_T aType);
void uninit();
private:
// wrapped IEvent properties
HRESULT getType(VBoxEventType_T *aType);
HRESULT getSource(ComPtr<IEventSource> &aSource);
HRESULT getWaitable(BOOL *aWaitable);
// wrapped IEvent methods
HRESULT setProcessed();
HRESULT waitProcessed(LONG aTimeout, BOOL *aResult);
// wrapped IVetoEvent methods
HRESULT addVeto(const com::Utf8Str &aReason);
HRESULT isVetoed(BOOL *aResult);
HRESULT getVetos(std::vector<com::Utf8Str> &aResult);
HRESULT addApproval(const com::Utf8Str &aReason);
HRESULT isApproved(BOOL *aResult);
HRESULT getApprovals(std::vector<com::Utf8Str> &aResult);
struct Data;
Data* m;
};
class ATL_NO_VTABLE EventSource :
public EventSourceWrap
{
public:
DECLARE_COMMON_CLASS_METHODS(EventSource)
HRESULT FinalConstruct();
void FinalRelease();
// public initializer/uninitializer for internal purposes only
HRESULT init();
void uninit();
private:
// wrapped IEventSource methods
HRESULT createListener(ComPtr<IEventListener> &aListener);
HRESULT createAggregator(const std::vector<ComPtr<IEventSource> > &aSubordinates,
ComPtr<IEventSource> &aResult);
HRESULT registerListener(const ComPtr<IEventListener> &aListener,
const std::vector<VBoxEventType_T> &aInteresting,
BOOL aActive);
HRESULT unregisterListener(const ComPtr<IEventListener> &aListener);
HRESULT fireEvent(const ComPtr<IEvent> &aEvent,
LONG aTimeout,
BOOL *aResult);
HRESULT getEvent(const ComPtr<IEventListener> &aListener,
LONG aTimeout,
ComPtr<IEvent> &aEvent);
HRESULT eventProcessed(const ComPtr<IEventListener> &aListener,
const ComPtr<IEvent> &aEvent);
struct Data;
Data *m;
friend class ListenerRecord;
};
class VBoxEventDesc
{
public:
VBoxEventDesc() : mEvent(0), mEventSource(0)
{}
VBoxEventDesc(IEvent *aEvent, IEventSource *aSource)
: mEvent(aEvent), mEventSource(aSource)
{}
~VBoxEventDesc()
{}
void init(IEvent *aEvent, IEventSource *aSource)
{
mEvent = aEvent;
mEventSource = aSource;
}
void uninit()
{
mEvent.setNull();
mEventSource.setNull();
}
void getEvent(IEvent **aEvent)
{
mEvent.queryInterfaceTo(aEvent);
}
BOOL fire(LONG aTimeout)
{
if (mEventSource && mEvent)
{
BOOL fDelivered = FALSE;
HRESULT hrc = mEventSource->FireEvent(mEvent, aTimeout, &fDelivered);
AssertComRCReturn(hrc, FALSE);
return fDelivered;
}
return FALSE;
}
private:
ComPtr<IEvent> mEvent;
ComPtr<IEventSource> mEventSource;
};
#endif /* !MAIN_INCLUDED_EventImpl_h */
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