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/*=============================================================================
Blobby Volley 2
Copyright (C) 2006 Jonathan Sieber (jonathan_sieber@yahoo.de)
Copyright (C) 2006 Daniel Knobe (daniel-knobe@web.de)
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; either version 2 of the License, or
(at your option) any later version.
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, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
=============================================================================*/
#pragma once
#include <typeinfo>
#include <iosfwd>
#include <utility>
#include <cstddef>
#include <cstdlib>
#include <memory>
#include <string>
int count(const std::type_info& type);
int uncount(const std::type_info& type);
int count(const std::type_info& type, std::string tag, int num);
int uncount(const std::type_info& type, std::string tag, int num);
/*! \class ObjectCounter
\brief Logging number of creations and living objects
\details To use this class for logging creations of a class TYPE, just derive it
from ObjectCounter<TYPE>. A full memory report can be written to a stream
by the record function.
\todo more specific reporting, watches, etc.
*/
template<class Base>
class ObjectCounter
{
public:
ObjectCounter()
{
count(typeid(Base));
};
~ObjectCounter()
{
uncount(typeid(Base));
};
ObjectCounter(const ObjectCounter& other)
{
count(typeid(Base));
}
ObjectCounter& operator=(const ObjectCounter& other) = default;
};
void report(std::ostream& stream);
int getObjectCount(const std::type_info& type);
struct CountingReport
{
CountingReport() : alive(0), created(0)
{
}
int alive;
int created;
};
// counting allocator
template<class T, typename tag_type>
struct CountingAllocator : private std::allocator<T>
{
typedef std::allocator<T> Base;
typedef T value_type;
typedef T* pointer;
typedef T& reference;
typedef const T* const_pointer;
typedef const T& const_reference;
typedef size_t size_type;
typedef ptrdiff_t difference_type ;
CountingAllocator() = default;
template<class V, typename tag2>
explicit CountingAllocator(const CountingAllocator<V, tag2>& other)
{
}
template<typename Tp1_>
struct rebind
{
typedef CountingAllocator<Tp1_, tag_type> other;
};
pointer allocate (size_type n, std::allocator<void>::const_pointer hint = nullptr)
{
count(typeid(T), tag_type::tag(), n);
return Base::allocate(n, hint);
}
void deallocate (pointer p, size_type n)
{
uncount(typeid(T), tag_type::tag(), n);
Base::deallocate(p, n);
}
using Base::address;
using Base::max_size;
using Base::construct;
using Base::destroy;
};
int count(const std::type_info& type, std::string tag, void* address, int num);
int uncount(const std::type_info& type, std::string tag, void* address);
template<class T, typename tag_type>
struct CountingMalloc
{
typedef T* pointer;
typedef T& reference;
typedef size_t size_type;
static pointer malloc (size_type n)
{
pointer nm = static_cast<pointer> ( ::malloc(n) );
count(typeid(T), tag_type::tag(), nm, n);
return nm;
}
static void free (pointer& p)
{
uncount(typeid(T), tag_type::tag(), p);
::free(p);
p = 0;
}
static pointer realloc ( pointer ptr, size_t size )
{
uncount(typeid(T), tag_type::tag(), ptr);
pointer nm = static_cast<pointer>(::realloc(ptr, size));
count(typeid(T), tag_type::tag(), nm, size);
}
};
struct string_tag
{
static std::string tag()
{
return "basic_string<char>";
}
};
typedef std::basic_string< char, std::char_traits<char>, CountingAllocator<char, string_tag> > TrackedString;
void debug_count_execution_fkt(std::string file, int line);
#define DEBUG_COUNT_EXECUTION debug_count_execution_fkt(__FILE__, __LINE__);
#ifdef DEBUG
#include <iostream>
#define DEBUG_STATUS(x) std::cout << x << std::endl;
#else
#define DEBUG_STATUS(x)
#endif // DEBUG
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