Trying to figure out how to implement my WINC like compatibility layer. Going the emulation way is probably not so smart. We should not use the kernel but rather hook native functions in the Exec calls.
// Copyright (c) 1995-2009 Nokia Corporation and/or its subsidiary(-ies).
// All rights reserved.
// This component and the accompanying materials are made available
// under the terms of the License "Eclipse Public License v1.0"
// which accompanies this distribution, and is available
// at the URL "http://www.eclipse.org/legal/epl-v10.html".
//
// Initial Contributors:
// Nokia Corporation - initial contribution.
//
// Contributors:
//
// Description:
// e32\euser\us_ref.cpp
//
//
#include "us_std.h"
/**
Frees the memory holding the contained object.
*/
EXPORT_C void RRefBase::Free()
{
if (iPtr)
{
if (--iPtr[-1]==0)
User::Free(iPtr-1);
iPtr=NULL;
}
}
/**
Creates a copy of an object, which is to be contained by
this reference object.
@param aPtr A pointer to memory holding a copy of the object.
@param aSize The size of the memory required to hold the object.
*/
EXPORT_C void RRefBase::DoAlloc(const TAny *aPtr,TInt aSize)
{
__ASSERT_ALWAYS(aSize>=0,Panic(ERefAllocSizeNegative));
Free();
iPtr=(TInt *)User::Alloc(aSize+sizeof(TInt));
if (iPtr!=NULL)
{
iPtr++;
iPtr[-1]=1;
Mem::Copy(iPtr,aPtr,aSize);
}
}
/**
Creates a copy of an object, which is to be contained by
this reference object, and leaves on error.
@param aPtr A pointer to memory holding a copy of the object.
@param aSize The size of the memory required to hold the object.
*/
EXPORT_C void RRefBase::DoAllocL(const TAny *aPtr,TInt aSize)
{
DoAlloc(aPtr,aSize);
User::LeaveIfNull(iPtr);
}
/**
Provides an implementation for the RRef class copy
constructor and assignment operator.
@param aRef The reference object to be copied.
@see RRef
*/
EXPORT_C void RRefBase::Copy(const RRefBase &aRef)
{
if (this!=(&aRef))
{
Free();
iPtr=aRef.iPtr;
iPtr[-1]++;
}
}