MemFunc.h

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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Project: uLib - User mode utility library.
// Module: Shared memory and solid heap allocation routines.
// Author: Copyright (c) Love Nystrom
// License: NNOSL (BSD descendant, see NNOSL.txt in the base directory).
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

#ifndef _Memo_h_incl_
#define _Memo_h_incl_

#include <uLib/Common.h>


BEGIN_EXTERN_C


extern HANDLE app_Heap;


void* mem_Alloc( size_t Bytes );


void* mem_Realloc( void* pBlk, size_t Bytes );


void* mem_Free( void* pBlk );


bool  mem_Compact();

END_EXTERN_C

#ifdef __cplusplus
#ifdef USE_ULIB_NEW_DELETE
BEGIN_NAMESPACE( uLib )


_inline void* operator new( size_t Bytes )              { return mem_Alloc( Bytes ); }
_inline void* operator new[]( size_t Bytes )            { return mem_Alloc( Bytes ); }


_inline void* operator new( size_t Bytes, void* pBlk )  { return mem_Realloc( pBlk, Bytes ); }
_inline void* operator new[]( size_t Bytes, void* pBlk ) { return mem_Realloc( pBlk, Bytes ); }

_inline void operator delete( void* pBlk )              { mem_Free( pBlk ); }
_inline void operator delete[]( void* pBlk )            { mem_Free( pBlk ); }

_inline void operator delete( void* pBlk, void* plc )   { mem_Free( pBlk ); }
_inline void operator delete[]( void* pBlk, void* plc ) { mem_Free( pBlk ); }

END_NAMESPACE( uLib )
#endif // USE_ULIB_NEW_DELETE
#endif //__cplusplus

//==---------------------------------------------------------------------------
//==---------------------------------------------------------------------------
BEGIN_EXTERN_C


PVOID AllocMemoryPages( WORD nPages, DWORD Access DEF_(PAGE_READWRITE) );


PVOID FreeMemoryPages( PVOID pBlk );


DWORD GetMemoryPageSize();


UINT  GetPageRegionSize( PVOID pBlk );


PVOID GetPageBaseAddress( PVOID pBlk );


PVOID GetPageAllocationBase( PVOID pBlk );

END_EXTERN_C
//==---------------------------------------------------------------------------
//==---------------------------------------------------------------------------
BEGIN_EXTERN_C

DECLARE_HANDLE( HPHYSICAL ); 
#define PHYSICAL_PTR( hmem ) (*(PVOID*)hmem) 


HPHYSICAL PhysicalAlloc( UINT64 nBytes );


HPHYSICAL PhysicalFree( HPHYSICAL hMem );


PVOID PhysicalPtr( HPHYSICAL hMem );


UINT64 PhysicalSize( HPHYSICAL hMem );


ULONG_PTR PhysicalPageCount( HPHYSICAL hMem );

END_EXTERN_C
#ifdef __cplusplus
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------

class SharedMem {
public:
    PVOID const& pData; 

    operator PVOID() { return _pmem; }
    operator TSTR()  { return (TSTR)_pmem; } 

    SharedMem( size_t Size, CSTR Name ); 
    SharedMem( CSTR Name ); 
    ~SharedMem();

    size_t  Size();
    bool    Flush( PVOID Addr, size_t Range );

protected:
    HANDLE  _hmem;
    PVOID   _pmem;
};

#endif //__cplusplus
#endif //ndef _Memo_h_incl_
// EOF