1 // Copyright (c) 1994-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of the License "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // kernel\eka\include\page_alloc.h

    15 // 

    16 //

    17 

    18 #ifndef __KERNEL_MODE__ 

    19 

    20 const int MAXSMALLPAGEBITS = 68<<3;

    21 #define MINPAGEPOWER	PAGESHIFT+2

    22 

    23 struct paged_bitmap

    24 {

    25 	public:

    26 		inline paged_bitmap() : iBase(0), iNbits(0) {}

    27 		void Init(unsigned char* p, unsigned size, unsigned bit);

    28 //

    29 		inline unsigned char* Addr() const;

    30 		inline unsigned Size() const;

    31 //

    32 		inline void Set(unsigned ix, unsigned bit);

    33 		inline unsigned operator[](unsigned ix) const;

    34 		bool Is(unsigned ix, unsigned len, unsigned bit) const;

    35 		void Set(unsigned ix, unsigned len, unsigned val);

    36 		void Setn(unsigned ix, unsigned len, unsigned bit);

    37 		unsigned Bits(unsigned ix, unsigned len) const;	// little endian

    38 		int Find(unsigned start, unsigned bit) const;

    39 	private:

    40 		unsigned char* iBase;

    41 		unsigned iNbits;

    42 };

    43 

    44 #endif  // __KERNEL_MODE__