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/****************************************************************************
**
** Copyright (C) 2010 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 "qplatformdefs.h"
#include "qfilesystemiterator_p.h"
#ifndef QT_NO_FILESYSTEMITERATOR
#include <stdlib.h>
#include <errno.h>
QT_BEGIN_NAMESPACE
QFileSystemIterator::QFileSystemIterator(const QFileSystemEntry &entry, QDir::Filters filters,
const QStringList &nameFilters, QDirIterator::IteratorFlags flags)
: nativePath(entry.nativeFilePath())
, dir(0)
, dirEntry(0)
, lastError(0)
{
Q_UNUSED(filters)
Q_UNUSED(nameFilters)
Q_UNUSED(flags)
if ((dir = QT_OPENDIR(nativePath.constData())) == 0) {
lastError = errno;
} else {
if (!nativePath.endsWith('/'))
nativePath.append('/');
#if defined(_POSIX_THREAD_SAFE_FUNCTIONS) && !defined(Q_OS_CYGWIN)
// ### Race condition; we should use fpathconf and dirfd().
size_t maxPathName = ::pathconf(nativePath.constData(), _PC_NAME_MAX);
if (maxPathName == size_t(-1))
maxPathName = FILENAME_MAX;
maxPathName += sizeof(QT_DIRENT) + 1;
QT_DIRENT *p = reinterpret_cast<QT_DIRENT*>(::malloc(maxPathName));
Q_CHECK_PTR(p);
mt_file.reset(p);
#endif
}
}
QFileSystemIterator::~QFileSystemIterator()
{
if (dir)
QT_CLOSEDIR(dir);
}
bool QFileSystemIterator::advance(QFileSystemEntry &fileEntry, QFileSystemMetaData &metaData)
{
if (!dir)
return false;
#if defined(_POSIX_THREAD_SAFE_FUNCTIONS) && !defined(Q_OS_CYGWIN)
lastError = QT_READDIR_R(dir, mt_file.data(), &dirEntry);
if (lastError)
return false;
#else
// ### add local lock to prevent breaking reentrancy
dirEntry = QT_READDIR(dir);
#endif // _POSIX_THREAD_SAFE_FUNCTIONS
if (dirEntry) {
fileEntry = QFileSystemEntry(nativePath + QByteArray(dirEntry->d_name), QFileSystemEntry::FromNativePath());
metaData.fillFromDirEnt(*dirEntry);
return true;
}
lastError = errno;
return false;
}
QT_END_NAMESPACE
#endif // QT_NO_FILESYSTEMITERATOR
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