kernel/eka/include/page_alloc.h
author Mike Kinghan <mikek@symbian.org>
Tue, 16 Nov 2010 14:39:21 +0000
branchGCC_SURGE
changeset 303 9b85206a602c
parent 167 b41fc9c39ca7
permissions -rw-r--r--
We need a way to pass flags to rombuilds in Raptor via extension flm interfaces, so that the CPP pass of the rom input files can be informed what toolchain we are building with and conditionally include or exclude files depending on whether the toolchain could build them.

// Copyright (c) 1994-2009 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:
// kernel\eka\include\page_alloc.h
// 
//

#ifndef __KERNEL_MODE__ 

const int MAXSMALLPAGEBITS = 68<<3;
#define MINPAGEPOWER	((PAGESHIFT)+2)

struct paged_bitmap
{
	public:
		inline paged_bitmap() : iBase(0), iNbits(0) {}
		void Init(unsigned char* p, unsigned size, unsigned bit);
//
		inline unsigned char* Addr() const;
		inline unsigned Size() const;
//
		inline void Set(unsigned ix, unsigned bit);
		inline unsigned operator[](unsigned ix) const;
		bool Is(unsigned ix, unsigned len, unsigned bit) const;
		void Set(unsigned ix, unsigned len, unsigned val);
		void Setn(unsigned ix, unsigned len, unsigned bit);
		unsigned Bits(unsigned ix, unsigned len) const;	// little endian
		int Find(unsigned start, unsigned bit) const;
	private:
		unsigned char* iBase;
		unsigned iNbits;
};

#endif  // __KERNEL_MODE__