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debug_new.h
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    00001 // -*- Mode: C++; tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
    00002 // vim:tabstop=4:shiftwidth=4:expandtab:
    00003
    00004 /*
    00005  * Copyright (C) 2004-2008 Wu Yongwei <adah at users dot sourceforge dot net>
    00006  *
    00007  * This software is provided 'as-is', without any express or implied
    00008  * warranty.  In no event will the authors be held liable for any
    00009  * damages arising from the use of this software.
    00010  *
    00011  * Permission is granted to anyone to use this software for any purpose,
    00012  * including commercial applications, and to alter it and redistribute
    00013  * it freely, subject to the following restrictions:
    00014  *
    00015  * 1. The origin of this software must not be misrepresented; you must
    00016  *    not claim that you wrote the original software.  If you use this
    00017  *    software in a product, an acknowledgement in the product
    00018  *    documentation would be appreciated but is not required.
    00019  * 2. Altered source versions must be plainly marked as such, and must
    00020  *    not be misrepresented as being the original software.
    00021  * 3. This notice may not be removed or altered from any source
    00022  *    distribution.
    00023  *
    00024  * This file is part of Stones of Nvwa:
    00025  *      http://sourceforge.net/projects/nvwa
    00026  *
    00027  */
    00028
    00040 #ifndef NDEBUG
    00041 #ifndef QT_NO_DEBUG
    00042 #if _QX_USE_MEM_LEAK_DETECTION
    00043
    00044 #ifndef _DEBUG_NEW_H
    00045 #define _DEBUG_NEW_H
    00046
    00047 #ifdef _MSC_VER
    00048 #pragma once
    00049 #endif
    00050
    00051 #include <new>
    00052 #include <stdio.h>
    00053
    00054 #include <QxCommon/QxMacro.h>
    00055
    00067 #ifndef HAVE_PLACEMENT_DELETE
    00068 #define HAVE_PLACEMENT_DELETE 1
    00069 #endif
    00070
    00095 #ifndef _DEBUG_NEW_REDEFINE_NEW
    00096 #define _DEBUG_NEW_REDEFINE_NEW 1
    00097 #endif
    00098
    00106 #ifndef _DEBUG_NEW_CALLER_ADDRESS
    00107 #ifdef __GNUC__
    00108 #define _DEBUG_NEW_CALLER_ADDRESS __builtin_return_address(0)
    00109 #else
    00110 #define _DEBUG_NEW_CALLER_ADDRESS NULL
    00111 #endif
    00112 #endif
    00113
    00122 #define DEBUG_NEW qx::memory::__debug_new_recorder(__FILE__, __LINE__, __FUNCTION__) ->* new
    00123
    00124 #if _DEBUG_NEW_REDEFINE_NEW
    00125 #define new DEBUG_NEW
    00126 #endif // _DEBUG_NEW_REDEFINE_NEW
    00127
    00128 #ifdef _DEBUG_NEW_EMULATE_MALLOC
    00129 #include <stdlib.h>
    00130 #ifdef new
    00131 #define malloc(s) ((void*)(new char[s]))
    00132 #else // new
    00133 #define malloc(s) ((void*)(DEBUG_NEW char[s]))
    00134 #endif // new
    00135 #define free(p) delete[] (char*)(p)
    00136 #endif // _DEBUG_NEW_EMULATE_MALLOC
    00137
    00138 QX_DLL_EXPORT void * operator new(size_t size, const char * file, int line);
    00139 QX_DLL_EXPORT void * operator new[](size_t size, const char * file, int line);
    00140
    00141 #if HAVE_PLACEMENT_DELETE
    00142 QX_DLL_EXPORT void operator delete(void * pointer, const char * file, int line) throw();
    00143 QX_DLL_EXPORT void operator delete[](void * pointer, const char * file, int line) throw();
    00144 #endif
    00145
    00146 #if defined(_MSC_VER) && _MSC_VER < 1300
    00147 // MSVC 6 requires the following declarations; or the non-placement
    00148 // new[]/delete[] will not compile.
    00149 QX_DLL_EXPORT void * operator new[](size_t) throw(std::bad_alloc);
    00150 QX_DLL_EXPORT void operator delete[](void *) throw();
    00151 #endif
    00152
    00153 namespace qx {
    00154 namespace memory {
    00155
    00156 /* Prototypes */
    00157 QX_DLL_EXPORT int check_leaks();
    00158 QX_DLL_EXPORT int check_mem_corruption();
    00159
    00160 /* Control variables */
    00161 extern bool new_autocheck_flag; // default to true: call check_leaks() on exit
    00162 extern bool new_verbose_flag;   // default to false: no verbose information
    00163 extern FILE* new_output_fp;     // default to stderr: output to console
    00164 extern const char* new_progname;// default to NULL; should be assigned argv[0]
    00165
    00171 class QX_DLL_EXPORT __debug_new_recorder
    00172 {
    00173     const char* _M_file;
    00174     const int   _M_line;
    00175     const char* _M_fct;
    00176     void _M_process(void* pointer);
    00177 public:
    00182     __debug_new_recorder(const char* file, int line, const char* fct)
    00183         : _M_file(file), _M_line(line), _M_fct(fct) {}
    00190     template <class _Tp> _Tp* operator->*(_Tp* pointer) { _M_process(pointer); return pointer; };
    00191     static void free_pointer(void* pointer, void* addr, bool is_array);
    00192 private:
    00193     __debug_new_recorder(const __debug_new_recorder&);
    00194     __debug_new_recorder& operator=(const __debug_new_recorder&);
    00195 };
    00196
    00203 class QX_DLL_EXPORT __debug_new_counter
    00204 {
    00205     static int _S_count;
    00206 public:
    00207     __debug_new_counter();
    00208     ~__debug_new_counter();
    00209 };
    00210
    00212 static __debug_new_counter __debug_new_count;
    00213
    00214 } // namespace memory
    00215 } // namespace qx
    00216
    00217 #endif // _DEBUG_NEW_H
    00218 #endif // _QX_USE_MEM_LEAK_DETECTION
    00219 #endif // QT_NO_DEBUG
    00220 #endif // NDEBUG

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