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/* Copyright (c) MediaArea.net SARL. All Rights Reserved.
*
* Use of this source code is governed by a zlib-style license that can
* be found in the License.txt file in the root of the source tree.
*/
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//
// MemoryDebug
//
// Provide "new" and "delete" overloadings to be able to detect memory leaks
// Based on http://loulou.developpez.com/tutoriels/moteur3d/partie1/ 2.2.1
//
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//---------------------------------------------------------------------------
#ifndef ZenMemoryDebugH
#define ZenMemoryDebugH
//---------------------------------------------------------------------------
//---------------------------------------------------------------------------
#if defined(ZENLIB_DEBUG)
//---------------------------------------------------------------------------
#include "ZenLib/Conf.h"
#include <fstream>
#include <sstream>
#include <memory>
#include <map>
#include <stack>
#include <string>
//---------------------------------------------------------------------------
namespace ZenLib
{
//***************************************************************************
// Class
//***************************************************************************
class MemoryDebug
{
public :
~MemoryDebug();
static MemoryDebug& Instance();
static bool g_IsShutdown;
void* Allocate(std::size_t Size, const char* File, int Line, bool Array);
void Free(void* Ptr, bool Array);
void NextDelete(const char*, int Line); //Sauvegarde les infos sur la dsallocation courante
void ReportLeaks();
private :
MemoryDebug();
struct TBlock
{
std::size_t Size; // Taille alloue
std::string File; // Fichier contenant l'allocation
int Line; // Ligne de l'allocation
bool Array; // Est-ce un objet ou un tableau ?
};
typedef std::map<void*, TBlock> TBlockMap;
TBlockMap m_Blocks; // Blocs de mmoire allous
std::stack<TBlock> m_DeleteStack; // Pile dont le sommet contient la ligne et le fichier de la prochaine dsallocation
};
} //NameSpace
//***************************************************************************
// operator overloadings
//***************************************************************************
inline void* operator new(std::size_t Size, const char* File, int Line)
{
return ZenLib::MemoryDebug::Instance().Allocate(Size, File, Line, false);
}
inline void* operator new[](std::size_t Size, const char* File, int Line)
{
return ZenLib::MemoryDebug::Instance().Allocate(Size, File, Line, true);
}
inline void operator delete(void* Ptr)
{
if (ZenLib::MemoryDebug::g_IsShutdown)
free(Ptr);
else
ZenLib::MemoryDebug::Instance().Free(Ptr, false);
}
inline void operator delete[](void* Ptr)
{
if (ZenLib::MemoryDebug::g_IsShutdown)
free(Ptr);
else
ZenLib::MemoryDebug::Instance().Free(Ptr, true);
}
#if !defined(__BORLANDC__) // Borland does not support overloaded delete
inline void operator delete(void* Ptr, const char* File, int Line)
{
ZenLib::MemoryDebug::Instance().NextDelete(File, Line);
ZenLib::MemoryDebug::Instance().Free(Ptr, false);
}
inline void operator delete[](void* Ptr, const char* File, int Line)
{
ZenLib::MemoryDebug::Instance().NextDelete(File, Line);
ZenLib::MemoryDebug::Instance().Free(Ptr, true);
}
#endif
#if !defined(__MINGW32__) //TODO: Does not work on MinGW, don't know why
#ifndef new
#define new new(__FILE__, __LINE__)
#endif
#ifndef delete
#define delete ZenLib::MemoryDebug::Instance().NextDelete(__FILE__, __LINE__), delete
#endif
#endif // __MINGW32__
#endif // defined(ZENLIB_DEBUG)
#endif // ZenMemoryDebugH
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