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
|
/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying
** this package.
**
** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qfilesystemiterator_p.h"
#include "qfilesystemengine_p.h"
#include <QtCore/private/qcore_symbian_p.h>
QT_BEGIN_NAMESPACE
QFileSystemIterator::QFileSystemIterator(const QFileSystemEntry &path, QDir::Filters filters,
const QStringList &nameFilters, QDirIterator::IteratorFlags iteratorFlags)
: lastError(KErrNone), entryIndex(-1)
{
RFs& fs = qt_s60GetRFs();
nativePath = path.nativeFilePath();
if (!nativePath.endsWith(QLatin1Char('\\')))
nativePath.append(QLatin1Char('\\'));
QString absPath = QFileSystemEngine::absoluteName(path).nativeFilePath();
if (!absPath.endsWith(QLatin1Char('\\')))
absPath.append(QLatin1Char('\\'));
int pathLen = absPath.length();
if (pathLen > KMaxFileName) {
lastError = KErrBadName;
return;
}
//set up server side filtering to reduce IPCs
//RDir won't accept all valid name filters e.g. "*. bar"
if (nameFilters.count() == 1 && !(filters & QDir::AllDirs) && iteratorFlags
== QDirIterator::NoIteratorFlags && pathLen + nameFilters[0].length()
<= KMaxFileName) {
//server side supports one mask - skip this for recursive mode or if only files should be filtered
absPath.append(nameFilters[0]);
}
TUint symbianMask = 0;
if ((filters & QDir::Dirs) || (filters & QDir::AllDirs) || (iteratorFlags
& QDirIterator::Subdirectories))
symbianMask |= KEntryAttDir; //include directories
if (filters & QDir::Hidden)
symbianMask |= KEntryAttHidden;
if (filters & QDir::System)
symbianMask |= KEntryAttSystem;
if (((filters & QDir::Files) == 0) && symbianMask == KEntryAttDir)
symbianMask |= KEntryAttMatchExclusive; //exclude non-directories
else if (symbianMask == 0) {
if ((filters & QDir::PermissionMask) == QDir::Writable)
symbianMask = KEntryAttMatchExclude | KEntryAttReadOnly;
}
lastError = dirHandle.Open(fs, qt_QString2TPtrC(absPath), symbianMask);
}
QFileSystemIterator::~QFileSystemIterator()
{
dirHandle.Close();
}
bool QFileSystemIterator::advance(QFileSystemEntry &fileEntry, QFileSystemMetaData &metaData)
{
//1st time, lastError is result of dirHandle.Open(), entries.Count() is 0 and entryIndex is -1 so initial read is triggered
//subsequent times, read is triggered each time we reach the end of the entry list
//final time, lastError is KErrEof so we don't need to read anymore.
++entryIndex;
if (lastError == KErrNone && entryIndex >= entries.Count()) {
lastError = dirHandle.Read(entries);
entryIndex = 0;
}
//each call to advance() gets the next entry from the entry list.
//from the final (or only) read call, KErrEof is returned together with a full buffer so we still need to go through the list
if ((lastError == KErrNone || lastError == KErrEof) && entryIndex < entries.Count()) {
Q_ASSERT(entryIndex >= 0);
const TEntry &entry(entries[entryIndex]);
fileEntry = QFileSystemEntry(nativePath + qt_TDesC2QString(entry.iName), QFileSystemEntry::FromNativePath());
metaData.fillFromTEntry(entry);
return true;
}
//TODO: error reporting, to allow user to distinguish empty directory from error condition.
return false;
}
QT_END_NAMESPACE
|
