78 lines
1.9 KiB
C++
78 lines
1.9 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
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#include "qplatformdefs.h"
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#include "qfilesystemiterator_p.h"
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#include <private/qstringconverter_p.h>
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#ifndef QT_NO_FILESYSTEMITERATOR
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#include <memory>
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#include <stdlib.h>
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#include <errno.h>
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QT_BEGIN_NAMESPACE
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static bool checkNameDecodable(const char *d_name, qsizetype len)
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{
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// This function is called in a loop from advance() below, but the loop is
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// usually run only once.
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return QUtf8::isValidUtf8(QByteArrayView(d_name, len)).isValidUtf8;
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}
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QFileSystemIterator::QFileSystemIterator(const QFileSystemEntry &entry, QDir::Filters filters,
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const QStringList &nameFilters, QDirIterator::IteratorFlags flags)
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: nativePath(entry.nativeFilePath())
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, dir(nullptr)
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, dirEntry(nullptr)
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, lastError(0)
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{
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Q_UNUSED(filters);
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Q_UNUSED(nameFilters);
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Q_UNUSED(flags);
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if ((dir = QT_OPENDIR(nativePath.constData())) == nullptr) {
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lastError = errno;
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} else {
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if (!nativePath.endsWith('/'))
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nativePath.append('/');
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}
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}
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QFileSystemIterator::~QFileSystemIterator()
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{
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if (dir)
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QT_CLOSEDIR(dir);
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}
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bool QFileSystemIterator::advance(QFileSystemEntry &fileEntry, QFileSystemMetaData &metaData)
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{
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if (!dir)
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return false;
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for (;;) {
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dirEntry = QT_READDIR(dir);
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if (dirEntry) {
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qsizetype len = strlen(dirEntry->d_name);
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if (checkNameDecodable(dirEntry->d_name, len)) {
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fileEntry = QFileSystemEntry(nativePath + QByteArray(dirEntry->d_name, len), QFileSystemEntry::FromNativePath());
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metaData.fillFromDirEnt(*dirEntry);
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return true;
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}
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} else {
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break;
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}
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}
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lastError = errno;
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return false;
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}
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QT_END_NAMESPACE
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#endif // QT_NO_FILESYSTEMITERATOR
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