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/****************************************************************************
**
** Copyright (C) 1999-2002 NVIDIA Corporation.
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt 3D Studio.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
//==============================================================================
// Prefix
//==============================================================================
#ifndef __QT3DS_OBJECTCOUNTER_H__
#define __QT3DS_OBJECTCOUNTER_H__
//==============================================================================
// Includes
//==============================================================================
#include <vector>
#include <string.h>
#include <QDebug>
//==============================================================================
// Forwards
//==============================================================================
class Qt3DSObjectCounter;
//==============================================================================
// Typedefs
//==============================================================================
typedef std::vector<Qt3DSObjectCounter *> TObjectCounterTracker;
//==============================================================================
// Constants
//==============================================================================
// If defined, track the object counts
#ifdef TRACK_OBJECT_COUNTS
#define DEFINE_OBJECT_COUNTER(classname) static Qt3DSObjectCounter s_ObjectCounter##classname;
#define IMPLEMENT_OBJECT_COUNTER(classname) \
Qt3DSObjectCounter classname::s_ObjectCounter##classname(#classname, sizeof(classname));
#define ADDTO_OBJECT_COUNTER(classname) classname::s_ObjectCounter##classname.Add();
#define REMOVEFROM_OBJECT_COUNTER(classname) classname::s_ObjectCounter##classname.Remove();
#define GET_OBJECT_COUNTER_COUNT(classname) (classname::s_ObjectCounter##classname.m_ObjectCount)
#define GET_OBJECT_COUNTER_SIZE(classname) (classname::s_ObjectCounter##classname.m_ObjectSize)
#define DEFINE_OBJECT_COUNTER_TRACKER(tracktype) \
extern TObjectCounterTracker s_ObjectCounterTracker##tracktype;
#define IMPLEMENT_OBJECT_COUNTER_TRACKER(tracktype) \
TObjectCounterTracker s_ObjectCounterTracker##tracktype;
#define TRACK_OBJECT_COUNTER(tracktype, classname) \
s_ObjectCounterTracker##tracktype.push_back(&classname::s_ObjectCounter##classname);
#define GET_TRACK_OBJECT_COUNTER(tracktype) s_ObjectCounterTracker##tracktype
// If not defined, do nothing
#else
#define DEFINE_OBJECT_COUNTER(classname)
#define IMPLEMENT_OBJECT_COUNTER(classname)
#define ADDTO_OBJECT_COUNTER(classname)
#define REMOVEFROM_OBJECT_COUNTER(classname)
#define GET_OBJECT_COUNTER_COUNT(classname)
#define DEFINE_OBJECT_COUNTER_TRACKER(tracktype)
#define IMPLEMENT_OBJECT_COUNTER_TRACKER(tracktype)
#define TRACK_OBJECT_COUNTER(tracktype, classname)
#define GET_TRACK_OBJECT_COUNTER(tracktype)
#endif
//==============================================================================
// Class
//==============================================================================
//==============================================================================
/**
* @class Qt3DSObjectCounter
* @brief This class is used to track that object have been released.
*
* Use the macros to make the feature easy.
* The macros define a static variable. Each time the object is constructed,
* the count on the static variable in incremented, and decremented when it
* is destructed. When the static variable is destroyed, object counts are
* dumped out to the debugger.
*/
class Qt3DSObjectCounter
{
//==============================================================================
// Enumerations
//==============================================================================
//==============================================================================
// Fields
//==============================================================================
public:
long m_ObjectCount;
char m_ObjectName[256];
long m_ObjectSize;
private:
static TObjectCounterTracker s_ObjectVector;
//==============================================================================
// Methods
//==============================================================================
public:
Qt3DSObjectCounter(const char *inName, long inClassSize)
: m_ObjectCount(0)
, m_ObjectSize(inClassSize)
{
::strncpy(m_ObjectName, inName, sizeof(m_ObjectName) - 1);
m_ObjectName[::strlen(inName)] = 0;
s_ObjectVector.push_back(this);
}
~Qt3DSObjectCounter()
{
if (m_ObjectCount > 0) {
qDebug() << "\t. . . with " << m_ObjectCount << "unreleased " << m_ObjectName
<< " objects.";
}
else if (m_ObjectCount < 0) {
qDebug() << "\t. . . object counting error for " << m_ObjectName << " ("
<< m_ObjectCount << ").";
}
if (s_ObjectVector.size()) {
TObjectCounterTracker::iterator theBegin = s_ObjectVector.begin();
TObjectCounterTracker::iterator theEnd = s_ObjectVector.end();
for (; theBegin != theEnd; ++theBegin) {
if (this == *theBegin) {
s_ObjectVector.erase(theBegin);
break;
}
}
}
}
void Add() { m_ObjectCount++; }
void Remove() { m_ObjectCount--; };
};
#endif // #ifndef __QT3DS_OBJECTCOUNTER_H__
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