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memory_pointer.h
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205 lines (162 loc) · 5.87 KB
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/**
* =============================================================================
* Source Python
* Copyright (C) 2012-2015 Source Python Development Team. All rights reserved.
* =============================================================================
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, version 3.0, as published by the
* Free Software Foundation.
*
* 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, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the Source Python Team gives you permission
* to link the code of this program (as well as its derivative works) to
* "Half-Life 2," the "Source Engine," and any Game MODs that run on software
* by the Valve Corporation. You must obey the GNU General Public License in
* all respects for all other code used. Additionally, the Source.Python
* Development Team grants this exception to all derivative works.
*/
#ifndef _MEMORY_POINTER_H
#define _MEMORY_POINTER_H
// ============================================================================
// >> INCLUDES
// ============================================================================
// Boost.Python
#include "boost/python.hpp"
using namespace boost::python;
// Memory
#include "memory_alloc.h"
#include "memory_rtti.h"
// Utilities
#include "utilities/wrap_macros.h"
// Must be included at last...
#include "memory_exception.h"
// ============================================================================
// >> Protection_t
// ============================================================================
enum Protection_t
{
PROTECTION_NONE,
PROTECTION_READ,
PROTECTION_READ_WRITE,
PROTECTION_EXECUTE,
PROTECTION_EXECUTE_READ,
PROTECTION_EXECUTE_READ_WRITE
};
// ============================================================================
// >> CPointer
// ============================================================================
class CFunction;
class CFunctionInfo;
class CPointer
{
public:
CPointer(unsigned long ulAddr = 0, bool bAutoDealloc = false);
operator unsigned long() const { return m_ulAddr; }
// Implement some operators
template<class T>
const CPointer* operator+(T const& rhs)
{ return new CPointer(m_ulAddr + rhs); }
template<class T>
const CPointer* operator-(T const& rhs)
{ return new CPointer(m_ulAddr - rhs); }
template<class T>
const CPointer* operator+=(T const& rhs)
{ m_ulAddr += rhs; return this; }
template<class T>
const CPointer* operator-=(T const& rhs)
{ m_ulAddr -= rhs; return this; }
bool operator!()
{ return !m_ulAddr; }
template<class T>
bool operator==(T const& rhs)
{ return m_ulAddr == rhs; }
template<class T>
bool operator!=(T const& rhs)
{ return m_ulAddr != rhs; }
template<class T>
bool operator<(T const& rhs)
{ return m_ulAddr < rhs; }
template<class T>
bool operator<=(T const& rhs)
{ return m_ulAddr <= rhs; }
template<class T>
bool operator>(T const& rhs)
{ return m_ulAddr > rhs; }
template<class T>
bool operator>=(T const& rhs)
{ return m_ulAddr >= rhs; }
template<class T>
T Get(int iOffset = 0)
{
Validate();
T result;
TRY_SEGV()
result = *(T *) (m_ulAddr + iOffset);
EXCEPT_SEGV()
return result;
}
template<class T>
void Set(T value, int iOffset = 0)
{
Validate();
TRY_SEGV()
*(T *) (m_ulAddr + iOffset) = value;
EXCEPT_SEGV()
}
const char * GetStringArray(int iOffset = 0);
void SetStringArray(char* szText, int iOffset = 0);
CPointer* GetPtr(int iOffset = 0);
void SetPtr(object oPtr, int iOffset = 0);
bool IsOverlapping(object oOther, unsigned long ulNumBytes);
CPointer* SearchBytes(object oBytes, unsigned long ulNumBytes);
int Compare(object oOther, unsigned long ulNum);
void Copy(object oDest, unsigned long ulNumBytes);
void Move(object oDest, unsigned long ulNumBytes);
unsigned long GetSize() { return UTIL_GetMemSize((void *) m_ulAddr); }
bool IsValid() { return m_ulAddr != 0; }
CPointer* GetVirtualFunc(int iIndex);
virtual CPointer* Realloc(int iSize);
virtual void Dealloc() { UTIL_Dealloc((void *) m_ulAddr); m_ulAddr = 0; }
CFunction* MakeFunction(CFunctionInfo& info);
CFunction* MakeFunction(object oCallingConvention, object args, object return_type);
CFunction* MakeVirtualFunction(int iIndex, object oCallingConvention, object args, object return_type);
CFunction* MakeVirtualFunction(CFunctionInfo& info);
void SetProtection(Protection_t prot, int size);
void Protect(int size);
void UnProtect(int size);
static void CallCallback(PyObject* self, char* szCallback);
static void PreDealloc(PyObject* self);
static CPointer* PreRealloc(PyObject* self, int iSize);
static void __del__(PyObject* self);
IBaseType* GetTypeInfo();
void Validate();
public:
unsigned long m_ulAddr;
bool m_bAutoDealloc;
};
// ============================================================================
// >> Alloc
// ============================================================================
inline CPointer* Alloc(int iSize, bool bAutoDealloc = true)
{
return new CPointer((unsigned long) UTIL_Alloc(iSize), bAutoDealloc);
}
// ============================================================================
// >> GetPtrHelper
// ============================================================================
inline unsigned long GetPtrHelper(unsigned long addr)
{
TRY_SEGV()
return *(unsigned long *) addr;
EXCEPT_SEGV()
return 0;
}
#endif // _MEMORY_POINTER_H