summaryrefslogtreecommitdiffstats
path: root/src/corelib/io/qfileinfo_p.h
blob: 7d66581f15da3efb28932489f5c18e8664a17546 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QFILEINFO_P_H
#define QFILEINFO_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists for the convenience
// of QIODevice. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include "qfileinfo.h"

QT_BEGIN_NAMESPACE

class QFileInfoPrivate
{
public:
    QFileInfoPrivate(const QFileInfo *copy=0);
    ~QFileInfoPrivate();

    void initFileEngine(const QString &);

    enum Access {
        ReadAccess,
        WriteAccess,
        ExecuteAccess
    };
    bool hasAccess(Access access) const;

    uint getFileFlags(QAbstractFileEngine::FileFlags) const;
    QDateTime &getFileTime(QAbstractFileEngine::FileTime) const;
    QString getFileName(QAbstractFileEngine::FileName) const;

    enum {
        CachedFileFlags = 0x01,
        CachedLinkTypeFlag = 0x02,
        CachedBundleTypeFlag= 0x04,
        CachedMTime = 0x10,
        CachedCTime = 0x20,
        CachedATime = 0x40,
        CachedSize = 0x08
    };

    struct Data
    {
        inline Data()
            : ref(1), fileEngine(0), cache_enabled(1)
        {
            clear();
        }

        inline Data(const Data &copy)
            : ref(1), fileEngine(QAbstractFileEngine::create(copy.fileName)),
              fileName(copy.fileName), cache_enabled(copy.cache_enabled)
        {
            clear();
        }

        inline ~Data()
        {
            delete fileEngine;
        }

        inline void clear()
        {
            fileNames.clear();
            fileFlags = 0;
            cachedFlags = 0;
        }

        mutable QAtomicInt ref;

        QAbstractFileEngine *fileEngine;
        mutable QString fileName;
        mutable QHash<int, QString> fileNames;
        mutable uint cachedFlags : 31;
        mutable uint cache_enabled : 1;
        mutable uint fileFlags;
        mutable qint64 fileSize;
        mutable QDateTime fileTimes[3];

        inline bool getCachedFlag(uint c) const
        { return cache_enabled ? (cachedFlags & c) : 0; }

        inline void setCachedFlag(uint c)
        { if (cache_enabled) cachedFlags |= c; }
    } *data;

    inline void reset() {
        detach();
        data->clear();
    }

    void detach();
};


QT_END_NAMESPACE
#endif