1 /*

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

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: OSN string data header. 

    15 *

    16 */

    17 

    18 #ifndef ALFSTRINGDATA_H

    19 #define ALFSTRINGDATA_H

    20 

    21 #include <osn/osntypes.h>

    22 

    23 #include "stringmacros.h"

    24 

    25 

    26 namespace osncore

    27     {

    28 

    29 class AlfChar;

    30 

    31 class CAlfString;

    32 

    33 struct SAlfStringData

    34     {

    35     // Uses shared null data.

    36     SAlfStringData();

    37     

    38     // No copy.

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

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

    41 

    42     // Copy bytes.

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

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

    45 

    46     

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

    48 

    49    

    50     ~SAlfStringData();

    51 /*

    52 #ifdef QSTRING_DEBUG_ALLOCATIONS

    53     void* operator new(size_t s);

    54     void operator delete(void*p);

    55 #endif

    56 */

    57     inline void ref() { refCount++; }

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

    59     

    60     char* ascii();

    61    

    62     char *makeAscii();

    63     

    64   

    65     

    66     bool increaseAsciiSize(uint size);

    67 

    68   //  AlfChar *unicode();

    69   //  AlfChar *makeUnicode();

    70    

    71 

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

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

    74 

    75     int refCount;

    76     int _length;

    77   //  mutable AlfChar *_unicode;

    78     mutable char *_ascii;

    79     int _maxUnicode:30;

    80     int _isUnicodeValid:1;

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

    82     int _maxAscii:31;

    83     int _isAsciiValid:1;

    84 

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

    86  

    87 private:

    88     SAlfStringData(const SAlfStringData &);

    89     SAlfStringData &operator=(const SAlfStringData &);

    90    

    91     };

    92 

    93     }// osncore

    94 #endif