1 | /****************************************************************************
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2 | **
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3 | ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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4 | ** Contact: Qt Software Information ([email protected])
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5 | ** Copyright (C) 2001-2004 Roberto Raggi
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6 | **
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7 | ** This file is part of the qt3to4 porting application of the Qt Toolkit.
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8 | **
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9 | ** $QT_BEGIN_LICENSE:LGPL$
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10 | ** Commercial Usage
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11 | ** Licensees holding valid Qt Commercial licenses may use this file in
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12 | ** accordance with the Qt Commercial License Agreement provided with the
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13 | ** Software or, alternatively, in accordance with the terms contained in
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14 | ** a written agreement between you and Nokia.
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15 | **
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16 | ** GNU Lesser General Public License Usage
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17 | ** Alternatively, this file may be used under the terms of the GNU Lesser
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18 | ** General Public License version 2.1 as published by the Free Software
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19 | ** Foundation and appearing in the file LICENSE.LGPL included in the
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20 | ** packaging of this file. Please review the following information to
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21 | ** ensure the GNU Lesser General Public License version 2.1 requirements
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22 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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23 | **
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24 | ** In addition, as a special exception, Nokia gives you certain
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25 | ** additional rights. These rights are described in the Nokia Qt LGPL
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26 | ** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
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27 | ** package.
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28 | **
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29 | ** GNU General Public License Usage
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30 | ** Alternatively, this file may be used under the terms of the GNU
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31 | ** General Public License version 3.0 as published by the Free Software
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32 | ** Foundation and appearing in the file LICENSE.GPL included in the
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33 | ** packaging of this file. Please review the following information to
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34 | ** ensure the GNU General Public License version 3.0 requirements will be
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35 | ** met: http://www.gnu.org/copyleft/gpl.html.
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36 | **
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37 | ** If you are unsure which license is appropriate for your use, please
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38 | ** contact the sales department at [email protected].
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39 | ** $QT_END_LICENSE$
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40 | **
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41 | ****************************************************************************/
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42 |
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43 | #ifndef SMALLOBJECT_H
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44 | #define SMALLOBJECT_H
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45 |
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46 | #include <QList>
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47 |
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48 | #include <assert.h>
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49 | #include <stdlib.h>
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50 | #include <string.h>
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51 |
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52 | QT_BEGIN_NAMESPACE
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53 |
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54 | struct block_t
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55 | {
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56 | static int N;
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57 |
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58 | block_t *chain;
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59 | char *data;
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60 | char *ptr;
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61 | char *end;
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62 |
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63 | inline void init(int block_size = 256)
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64 | {
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65 | ++N;
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66 | chain = 0;
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67 | data = (char*) malloc(block_size);
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68 | ptr = data;
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69 | end = data + block_size;
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70 | }
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71 |
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72 | inline void init0(int block_size)
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73 | {
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74 | init();
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75 | memset(data, '0', block_size);
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76 | }
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77 |
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78 | inline void destroy()
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79 | {
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80 | --N;
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81 | if (chain) {
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82 | chain->destroy();
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83 | free(chain);
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84 | }
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85 |
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86 | free(data);
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87 | }
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88 |
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