/*

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

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "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: OSN string data header. 

*

*/

#ifndef ALFSTRINGDATA_H

#define ALFSTRINGDATA_H

#include <osn/osntypes.h>

#include "stringmacros.h"

namespace osncore

    {

class AlfChar;

class CAlfString;

struct SAlfStringData

    {

    // Uses shared null data.

    SAlfStringData();

    // No copy.

  //  SAlfStringData(AlfChar *u, uint l, uint m);

  //  void initialize(AlfChar *u, uint l, uint m);

    // Copy bytes.

  //  SAlfStringData(const AlfChar *u, uint l);

  //  void initialize(const AlfChar *u, uint l);

    void initialize(const char *u, int l);

    ~SAlfStringData();

/*

#ifdef QSTRING_DEBUG_ALLOCATIONS

    void* operator new(size_t s);

    void operator delete(void*p);

#endif

*/

    inline void ref() { refCount++; }

    inline void deref() { /*if (--refCount == 0 && _isHeapAllocated) delete this;*/ refCount--; }

    char* ascii();

    char *makeAscii();

    bool increaseAsciiSize(uint size);

  //  AlfChar *unicode();

  //  AlfChar *makeUnicode();

  //  bool isUnicodeInternal() const { return (char *)_unicode == _internalBuffer; }

    bool isAsciiInternal() const { return _ascii == _internalBuffer; }

    int refCount;

    int _length;

  //  mutable AlfChar *_unicode;

    mutable char *_ascii;

    int _maxUnicode:30;

    int _isUnicodeValid:1;

    int _isHeapAllocated:1;	// Fragile, but the only way we can be sure the instance was created with 'new'.

    int _maxAscii:31;

    int _isAsciiValid:1;

    char _internalBuffer[QS_INTERNAL_BUFFER_SIZE]; // Pad out to a (((size + 1) & ~15) + 14) size

private:

    SAlfStringData(const SAlfStringData &);

    SAlfStringData &operator=(const SAlfStringData &);

    };

    }// osncore

#endif