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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** No Commercial Usage
**
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
**
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/
#ifndef DEBUGEVENTCALLBACKBASE_H
#define DEBUGEVENTCALLBACKBASE_H
#include "cdbcom.h"
#include <QtCore/QSharedPointer>
namespace CdbCore {
class CoreEngine;
// Base class for event callbacks that takes care
// Active X magic. Provides base implementations with
// the exception of GetInterestMask(). The base class
// needs to do some book-keeping on the modules loaded to
// be able to detect the startup/completed attach of a
// debuggee (see CoreEngine::modulesLoaded()).
// So, the interest mask must be at least baseInterestMask()
// and handleModuleLoad/Unload must be called from derived
// classes when overwriting the handlers.
class DebugEventCallbackBase : public IDebugEventCallbacksWide
{
protected:
DebugEventCallbackBase();
public:
virtual ~DebugEventCallbackBase();
// IUnknown.
STDMETHOD(QueryInterface)(
THIS_
IN REFIID InterfaceId,
OUT PVOID* Interface
);
STDMETHOD_(ULONG, AddRef)(
THIS
);
STDMETHOD_(ULONG, Release)(
THIS
);
// IDebugEventCallbacks.
STDMETHOD(Breakpoint)(
THIS_
__in PDEBUG_BREAKPOINT2 Bp
);
STDMETHOD(Exception)(
THIS_
__in PEXCEPTION_RECORD64 Exception,
__in ULONG FirstChance
);
STDMETHOD(CreateThread)(
THIS_
__in ULONG64 Handle,
__in ULONG64 DataOffset,
__in ULONG64 StartOffset
);
STDMETHOD(ExitThread)(
THIS_
__in ULONG ExitCode
);
STDMETHOD(CreateProcess)(
THIS_
__in ULONG64 ImageFileHandle,
__in ULONG64 Handle,
__in ULONG64 BaseOffset,
__in ULONG ModuleSize,
__in_opt PCWSTR ModuleName,
__in_opt PCWSTR ImageName,
__in ULONG CheckSum,
__in ULONG TimeDateStamp,
__in ULONG64 InitialThreadHandle,
__in ULONG64 ThreadDataOffset,
__in ULONG64 StartOffset
);
STDMETHOD(ExitProcess)(
THIS_
__in ULONG ExitCode
);
// Call handleModuleLoad() when reimplementing this
STDMETHOD(LoadModule)(
THIS_
__in ULONG64 ImageFileHandle,
__in ULONG64 BaseOffset,
__in ULONG ModuleSize,
__in_opt PCWSTR ModuleName,
__in_opt PCWSTR ImageName,
__in ULONG CheckSum,
__in ULONG TimeDateStamp
);
// Call handleModuleUnload() when reimplementing this
STDMETHOD(UnloadModule)(
THIS_
__in_opt PCWSTR ImageBaseName,
__in ULONG64 BaseOffset
);
STDMETHOD(SystemError)(
THIS_
__in ULONG Error,
__in ULONG Level
);
STDMETHOD(SessionStatus)(
THIS_
__in ULONG Status
);
STDMETHOD(ChangeDebuggeeState)(
THIS_
__in ULONG Flags,
__in ULONG64 Argument
);
STDMETHOD(ChangeEngineState)(
THIS_
__in ULONG Flags,
__in ULONG64 Argument
);
STDMETHOD(ChangeSymbolState)(
THIS_
__in ULONG Flags,
__in ULONG64 Argument
);
static IDebugEventCallbacksWide *getEventCallback(CIDebugClient *clnt);
unsigned moduleCount() const;
void setModuleCount(unsigned m);
protected:
void handleModuleLoad();
void handleModuleUnload();
ULONG baseInterestMask() const;
private:
unsigned m_moduleCount;
};
// Utility class to temporarily redirect events to another handler
// as long as in scope
class EventCallbackRedirector {
Q_DISABLE_COPY(EventCallbackRedirector)
public:
typedef QSharedPointer<DebugEventCallbackBase> DebugEventCallbackBasePtr;
explicit EventCallbackRedirector(CoreEngine *engine, const DebugEventCallbackBasePtr &cb);
~EventCallbackRedirector();
private:
CoreEngine *m_engine;
const DebugEventCallbackBasePtr m_oldCallback;
};
} // namespace CdbCore
#endif // DEBUGEVENTCALLBACKBASE_H
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