//static
QFileSystemEntry QFileSystemEngine::absoluteName(const QFileSystemEntry &entry)
{
    if (entry.isAbsolute() && entry.isClean())
        return entry;

    QByteArray orig = entry.nativeFilePath();
    QByteArray result;
    if (orig.isEmpty() || !orig.startsWith('/')) {
        QFileSystemEntry cur(currentPath());
        result = cur.nativeFilePath();
    }
    if (!orig.isEmpty() && !(orig.length() == 1 && orig[0] == '.')) {
        if (!result.isEmpty() && !result.endsWith('/'))
            result.append('/');
        result.append(orig);
    }

    if (result.length() == 1 && result[0] == '/')
        return QFileSystemEntry(result, QFileSystemEntry::FromNativePath());
    const bool isDir = result.endsWith('/');

    /* as long as QDir::cleanPath() operates on a QString we have to convert to a string here.
     * ideally we never convert to a string since that loses information. Please fix after
     * we get a QByteArray version of QDir::cleanPath()
     */
    QFileSystemEntry resultingEntry(result, QFileSystemEntry::FromNativePath());
    QString stringVersion = QDir::cleanPath(resultingEntry.filePath());
    if (isDir)
        stringVersion.append(QLatin1Char('/'));
    return QFileSystemEntry(stringVersion);
}

QFileSystemEntry QFileSystemEngine::currentPath()
{
    QFileSystemEntry result;
    QT_STATBUF st;
    if (QT_STAT(".", &st) == 0) {
#if defined(__GLIBC__) && !defined(PATH_MAX)
        char *currentName = ::get_current_dir_name();
        if (currentName) {
            result = QFileSystemEntry(QByteArray(currentName), QFileSystemEntry::FromNativePath());
            ::free(currentName);
        }
#else
        char currentName[PATH_MAX+1];
        if (::getcwd(currentName, PATH_MAX)) {
#if defined(Q_OS_VXWORKS) && defined(VXWORKS_VXSIM)
            QByteArray dir(currentName);
            if (dir.indexOf(':') < dir.indexOf('/'))
                dir.remove(0, dir.indexOf(':')+1);

            qstrncpy(currentName, dir.constData(), PATH_MAX);
#endif
            result = QFileSystemEntry(QByteArray(currentName), QFileSystemEntry::FromNativePath());
        }
# if defined(QT_DEBUG)
        if (result.isEmpty())
            qWarning("QFileSystemEngine::currentPath: getcwd() failed");
# endif
#endif
    } else {
# if defined(QT_DEBUG)
        qWarning("QFileSystemEngine::currentPath: stat(\".\") failed");
# endif
    }
    return result;
}

//static
QFileSystemEntry QFileSystemEngine::canonicalName(const QFileSystemEntry &entry, QFileSystemMetaData &data)
{
    if (entry.isEmpty() || entry.isRoot())
        return entry;

#if !defined(Q_OS_MAC) && _POSIX_VERSION < 200809L
    // realpath(X,0) is not supported
    Q_UNUSED(data);
    return QFileSystemEntry(slowCanonicalized(absoluteName(entry).filePath()));
#else
    char *ret = 0;
# if defined(Q_OS_MAC)
#  if !defined(QT_NO_CORESERVICES)
    // Mac OS X 10.5.x doesn't support the realpath(X,0) extension we use here.
    if (QSysInfo::MacintoshVersion >= QSysInfo::MV_10_6) {
        ret = realpath(entry.nativeFilePath().constData(), (char*)0);
    } else {
        // on 10.5 we can use FSRef to resolve the file path.
        QString path = QDir::cleanPath(entry.filePath());
        FSRef fsref;
        if (FSPathMakeRef((const UInt8 *)path.toUtf8().data(), &fsref, 0) == noErr) {
            CFURLRef urlref = CFURLCreateFromFSRef(NULL, &fsref);
            CFStringRef canonicalPath = CFURLCopyFileSystemPath(urlref, kCFURLPOSIXPathStyle);
            QString ret = QCFString::toQString(canonicalPath);
            CFRelease(canonicalPath);
            CFRelease(urlref);
            return QFileSystemEntry(ret);
        }
    }
#  else
    ret = (char*)malloc(PATH_MAX);
    realpath(entry.nativeFilePath().constData(), (char*)ret);
#  endif //!defined(QT_NO_CORESERVICES)
#  else
#ifdef Q_OS_ANDROID
    ret = (char*)malloc(PATH_MAX);
    memset(ret, 0, PATH_MAX);
    ret = realpath(entry.nativeFilePath().constData(), ret);
#else
    ret = realpath(entry.nativeFilePath().constData(), (char*)0);
#endif
    ret = realpath(entry.nativeFilePath().constData(), (char*)0);
# endif //defined(Q_OS_MAC)
    if (ret) {
        data.knownFlagsMask |= QFileSystemMetaData::ExistsAttribute;
        data.entryFlags |= QFileSystemMetaData::ExistsAttribute;
        QString canonicalPath = QDir::cleanPath(QString::fromLocal8Bit(ret));
        free(ret);
        return QFileSystemEntry(canonicalPath);
    } else if (errno == ENOENT) { // file doesn't exist
        data.knownFlagsMask |= QFileSystemMetaData::ExistsAttribute;
        data.entryFlags &= ~(QFileSystemMetaData::ExistsAttribute);
        return QFileSystemEntry();
    }
    return entry;
#endif
}

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;
}

/*!
    Opens the file descriptor specified by \a file in the mode given by
    \a openMode. Returns true on success; otherwise returns false.

    The \a handleFlags argument specifies whether the file handle will be
    closed by Qt. See the QFile::FileHandleFlags documentation for more
    information.
*/
bool QFSFileEngine::open(QIODevice::OpenMode openMode, const RFile &file, QFile::FileHandleFlags handleFlags)
{
    Q_D(QFSFileEngine);

    // Append implies WriteOnly.
    if (openMode & QFile::Append)
        openMode |= QFile::WriteOnly;

    // WriteOnly implies Truncate if neither ReadOnly nor Append are sent.
    if ((openMode & QFile::WriteOnly) && !(openMode & (QFile::ReadOnly | QFile::Append)))
        openMode |= QFile::Truncate;

    d->openMode = openMode;
    d->lastFlushFailed = false;
    d->closeFileHandle = (handleFlags & QFile::AutoCloseHandle);
    d->fileEntry.clear();
    d->fh = 0;
    d->fd = -1;
    d->tried_stat = 0;

#ifdef SYMBIAN_ENABLE_64_BIT_FILE_SERVER_API
    //RFile64 adds only functions to RFile, no data members
    d->symbianFile = static_cast<const RFile64&>(file);
#else
    d->symbianFile = file;
#endif
    TInt ret;
    d->symbianFilePos = 0;
    if (openMode & QFile::Append) {
        // Seek to the end when in Append mode.
        ret = d->symbianFile.Size(d->symbianFilePos);
    } else {
        // Seek to current otherwise
        ret = d->symbianFile.Seek(ESeekCurrent, d->symbianFilePos);
    }

    if (ret != KErrNone) {
        setError(QFile::OpenError, QSystemError(ret, QSystemError::NativeError).toString());

        d->openMode = QIODevice::NotOpen;
#ifdef SYMBIAN_ENABLE_64_BIT_FILE_SERVER_API
        d->symbianFile = RFile64();
#else
        d->symbianFile = RFile();
#endif
        return false;
    }

    // Extract filename (best effort)
    TFileName fn;
    TInt err = d->symbianFile.FullName(fn);
    if (err == KErrNone)
        d->fileEntry = QFileSystemEntry(qt_TDesC2QString(fn), QFileSystemEntry::FromNativePath());
    else
        d->fileEntry.clear();

    return true;
}

bool QFSFileEngine::rename(const QString &newName)
{
    Q_D(QFSFileEngine);
    QSystemError error;
    bool ret = QFileSystemEngine::renameFile(d->fileEntry, QFileSystemEntry(newName), error);
    if (!ret)
        setError(QFile::RenameError, error.toString());
    return ret;
}

bool QFSFileEngineIterator::hasNext() const
{
    if (!done && !nativeIterator) {
        nativeIterator.reset(new QFileSystemIterator(QFileSystemEntry(path()),
                    filters(), nameFilters()));
        advance();
    }

    return !done;
}

//static
QFileSystemEntry QFileSystemEngine::currentPath()
{
    TFileName fn;
    QFileSystemEntry ret;
    TInt r = qt_s60GetRFs().SessionPath(fn);
    if(r == KErrNone) {
        //remove terminating slash from non root paths (session path is clean, absolute and always ends in a \)
        if(fn.Length() > 3 && fn[fn.Length() - 1] == '\\')
            fn.SetLength(fn.Length() - 1);
        ret = QFileSystemEntry(qt_TDesC2QString(fn), QFileSystemEntry::FromNativePath());
    }
    return ret;
}

//static
QFileSystemEntry QFileSystemEngine::canonicalName(const QFileSystemEntry &entry, QFileSystemMetaData &data)
{
    if (entry.isEmpty() || entry.isRoot())
        return entry;

    QFileSystemEntry result = absoluteName(entry);
    if (!data.hasFlags(QFileSystemMetaData::ExistsAttribute))
        fillMetaData(result, data, QFileSystemMetaData::ExistsAttribute);
    if (!data.exists()) {
        // file doesn't exist
        return QFileSystemEntry();
    } else {
        return result;
    }
}

static bool _q_resolveEntryAndCreateLegacyEngine_recursive(QFileSystemEntry &entry, QFileSystemMetaData &data,
        QAbstractFileEngine *&engine, bool resolvingEntry = false)
{
    QString const &filePath = entry.filePath();
    if ((engine = qt_custom_file_engine_handler_create(filePath)))
        return _q_checkEntry(engine, resolvingEntry);

#if defined(QT_BUILD_CORE_LIB)
    for (int prefixSeparator = 0; prefixSeparator < filePath.size(); ++prefixSeparator) {
        QChar const ch = filePath[prefixSeparator];
        if (ch == QLatin1Char('/'))
            break;

        if (ch == QLatin1Char(':')) {
            if (prefixSeparator == 0) {
                engine = new QResourceFileEngine(filePath);
                return _q_checkEntry(engine, resolvingEntry);
            }

            if (prefixSeparator == 1)
                break;

            const QStringList &paths = QDir::searchPaths(filePath.left(prefixSeparator));
            for (int i = 0; i < paths.count(); i++) {
                entry = QFileSystemEntry(QDir::cleanPath(paths.at(i) % QLatin1Char('/') % filePath.mid(prefixSeparator + 1)));
                // Recurse!
                if (_q_resolveEntryAndCreateLegacyEngine_recursive(entry, data, engine, true))
                    return true;
            }

            // entry may have been clobbered at this point.
            return false;
        }

        //  There's no need to fully validate the prefix here. Consulting the
        //  unicode tables could be expensive and validation is already
        //  performed in QDir::setSearchPaths.
        //
        //  if (!ch.isLetterOrNumber())
        //      break;
    }
#endif // defined(QT_BUILD_CORE_LIB)

    return _q_checkEntry(entry, data, resolvingEntry);
}

//static
QFileSystemEntry QFileSystemEngine::absoluteName(const QFileSystemEntry &entry)
{
    QString orig = entry.filePath();
    const bool isAbsolute = entry.isAbsolute();
    const bool isDirty = !entry.isClean();
    if (isAbsolute && !isDirty)
        return entry;

    const bool isRelative = entry.isRelative();
    const bool needsDrive = (!orig.isEmpty() && orig.at(0).unicode() == '/');
    const bool isDriveLetter = !needsDrive && !isAbsolute && !isRelative && orig.length() == 2;
    const bool isDriveRelative = !needsDrive && !isAbsolute && !isRelative && orig.length() > 2;

    QString result;
    if (needsDrive || isDriveLetter || isDriveRelative || !isAbsolute || orig.isEmpty()) {
        QFileSystemEntry cur(currentPath());
        if(needsDrive)
            result = cur.filePath().left(2);
        else if(isDriveRelative && cur.filePath().at(0) != orig.at(0))
            result = orig.left(2); // for BC, see tst_QFileInfo::absolutePath(<not current drive>:my.dll)
        else
            result = cur.filePath();
        if(isDriveLetter) {
            result[0] = orig.at(0); //copy drive letter
            orig.clear();
        }
        if(isDriveRelative) {
            orig = orig.mid(2); //discard the drive specifier from orig
        }
    }
    if (!orig.isEmpty() && !(orig.length() == 1 && orig.at(0).unicode() == '.')) {
        if (!result.isEmpty() && !result.endsWith(QLatin1Char('/')))
            result.append(QLatin1Char('/'));
        result.append(orig);
    }

    return QFileSystemEntry(symbianCleanAbsolutePath(result), QFileSystemEntry::FromInternalPath());
}

//static
QFileSystemEntry QFileSystemEngine::canonicalName(const QFileSystemEntry &entry, QFileSystemMetaData &data)
{
    if (entry.isEmpty() || entry.isRoot())
        return entry;

#if !defined(Q_OS_MAC) && !defined(Q_OS_QNX) && !defined(Q_OS_ANDROID) && !defined(Q_OS_HAIKU) && _POSIX_VERSION < 200809L
    // realpath(X,0) is not supported
    Q_UNUSED(data);
    return QFileSystemEntry(slowCanonicalized(absoluteName(entry).filePath()));
#else
    char *ret = 0;
# if defined(Q_OS_DARWIN)
    ret = (char*)malloc(PATH_MAX + 1);
    if (ret && realpath(entry.nativeFilePath().constData(), (char*)ret) == 0) {
        const int savedErrno = errno; // errno is checked below, and free() might change it
        free(ret);
        errno = savedErrno;
        ret = 0;
    }
# elif defined(Q_OS_ANDROID)
    // On some Android versions, realpath() will return a path even if it does not exist
    // To work around this, we check existence in advance.
    if (!data.hasFlags(QFileSystemMetaData::ExistsAttribute))
        fillMetaData(entry, data, QFileSystemMetaData::ExistsAttribute);

    if (!data.exists()) {
        ret = 0;
        errno = ENOENT;
    } else {
        ret = (char*)malloc(PATH_MAX + 1);
        if (realpath(entry.nativeFilePath().constData(), (char*)ret) == 0) {
            const int savedErrno = errno; // errno is checked below, and free() might change it
            free(ret);
            errno = savedErrno;
            ret = 0;
        }
    }

# else
#  if _POSIX_VERSION >= 200801L
    ret = realpath(entry.nativeFilePath().constData(), (char*)0);
#  else
    ret = (char*)malloc(PATH_MAX + 1);
    if (realpath(entry.nativeFilePath().constData(), (char*)ret) == 0) {
        const int savedErrno = errno; // errno is checked below, and free() might change it
        free(ret);
        errno = savedErrno;
        ret = 0;
    }
#  endif
# endif
    if (ret) {
        data.knownFlagsMask |= QFileSystemMetaData::ExistsAttribute;
        data.entryFlags |= QFileSystemMetaData::ExistsAttribute;
        QString canonicalPath = QDir::cleanPath(QString::fromLocal8Bit(ret));
        free(ret);
        return QFileSystemEntry(canonicalPath);
    } else if (errno == ENOENT) { // file doesn't exist
        data.knownFlagsMask |= QFileSystemMetaData::ExistsAttribute;
        data.entryFlags &= ~(QFileSystemMetaData::ExistsAttribute);
        return QFileSystemEntry();
    }
    return entry;
#endif
}

//static
QFileSystemEntry QFileSystemEngine::canonicalName(const QFileSystemEntry &entry, QFileSystemMetaData &data)
{
    if (entry.isEmpty() || entry.isRoot())
        return entry;

#if !defined(Q_OS_MAC) && !defined(Q_OS_QNX) && !defined(Q_OS_ANDROID) && _POSIX_VERSION < 200809L
    // realpath(X,0) is not supported
    Q_UNUSED(data);
    return QFileSystemEntry(slowCanonicalized(absoluteName(entry).filePath()));
#else
    char *ret = 0;
# if defined(Q_OS_MACX)
    // When using -mmacosx-version-min=10.4, we get the legacy realpath implementation,
    // which does not work properly with the realpath(X,0) form. See QTBUG-28282.
    if (QSysInfo::MacintoshVersion >= QSysInfo::MV_10_6) {
        ret = (char*)malloc(PATH_MAX + 1);
        if (ret && realpath(entry.nativeFilePath().constData(), (char*)ret) == 0) {
            const int savedErrno = errno; // errno is checked below, and free() might change it
            free(ret);
            errno = savedErrno;
            ret = 0;
        }
    } else {
        // on 10.5 we can use FSRef to resolve the file path.
        QString path = QDir::cleanPath(entry.filePath());
        FSRef fsref;
        if (FSPathMakeRef((const UInt8 *)path.toUtf8().data(), &fsref, 0) == noErr) {
            CFURLRef urlref = CFURLCreateFromFSRef(NULL, &fsref);
            CFStringRef canonicalPath = CFURLCopyFileSystemPath(urlref, kCFURLPOSIXPathStyle);
            QString ret = QCFString::toQString(canonicalPath);
            CFRelease(canonicalPath);
            CFRelease(urlref);
            return QFileSystemEntry(ret);
        }
    }
# else
#  if _POSIX_VERSION >= 200801L
    ret = realpath(entry.nativeFilePath().constData(), (char*)0);
#  else
    ret = (char*)malloc(PATH_MAX + 1);
    if (realpath(entry.nativeFilePath().constData(), (char*)ret) == 0) {
        const int savedErrno = errno; // errno is checked below, and free() might change it
        free(ret);
        errno = savedErrno;
        ret = 0;
    }
#  endif
# endif
    if (ret) {
        data.knownFlagsMask |= QFileSystemMetaData::ExistsAttribute;
        data.entryFlags |= QFileSystemMetaData::ExistsAttribute;
        QString canonicalPath = QDir::cleanPath(QString::fromLocal8Bit(ret));
        free(ret);
        return QFileSystemEntry(canonicalPath);
    } else if (errno == ENOENT) { // file doesn't exist
        data.knownFlagsMask |= QFileSystemMetaData::ExistsAttribute;
        data.entryFlags &= ~(QFileSystemMetaData::ExistsAttribute);
        return QFileSystemEntry();
    }
    return entry;
#endif
}

/*!
    \reimp
*/
void QFSFileEngine::setFileName(const QString &file)
{
    Q_D(QFSFileEngine);
    d->init();
    d->fileEntry = QFileSystemEntry(file);
}

/*!
    Constructs a QFSFileEngine for the file name \a file.
*/
QFSFileEngine::QFSFileEngine(const QString &file)
    : QAbstractFileEngine(*new QFSFileEnginePrivate)
{
    Q_D(QFSFileEngine);
    d->fileEntry = QFileSystemEntry(file);
}

bool
QFile::rename(const QString &newName)
{
    Q_D(QFile);
    if (d->fileName.isEmpty()) {
        qWarning("QFile::rename: Empty or null file name");
        return false;
    }
    if (d->fileName == newName) {
        d->setError(QFile::RenameError, tr("Destination file is the same file."));
        return false;
    }
    if (!exists()) {
        d->setError(QFile::RenameError, tr("Source file does not exist."));
        return false;
    }
    // If the file exists and it is a case-changing rename ("foo" -> "Foo"),
    // compare Ids to make sure it really is a different file.
    if (QFile::exists(newName)) {
        if (d->fileName.compare(newName, Qt::CaseInsensitive)
            || QFileSystemEngine::id(QFileSystemEntry(d->fileName)) != QFileSystemEngine::id(QFileSystemEntry(newName))) {
            // ### Race condition. If a file is moved in after this, it /will/ be
            // overwritten. On Unix, the proper solution is to use hardlinks:
            // return ::link(old, new) && ::remove(old);
            d->setError(QFile::RenameError, tr("Destination file exists"));
            return false;
        }
#ifndef QT_NO_TEMPORARYFILE
        // This #ifndef disables the workaround it encloses. Therefore, this configuration is not recommended.
#ifdef Q_OS_LINUX
        // rename() on Linux simply does nothing when renaming "foo" to "Foo" on a case-insensitive
        // FS, such as FAT32. Move the file away and rename in 2 steps to work around.
        QTemporaryFile tempFile(d->fileName + QStringLiteral(".XXXXXX"));
        tempFile.setAutoRemove(false);
        if (!tempFile.open(QIODevice::ReadWrite)) {
            d->setError(QFile::RenameError, tempFile.errorString());
            return false;
        }
        tempFile.close();
        if (!d->engine()->rename(tempFile.fileName())) {
            d->setError(QFile::RenameError, tr("Error while renaming."));
            return false;
        }
        if (tempFile.rename(newName)) {
            d->fileEngine->setFileName(newName);
            d->fileName = newName;
            return true;
        }
        d->setError(QFile::RenameError, tempFile.errorString());
        // We need to restore the original file.
        if (!tempFile.rename(d->fileName)) {
            d->setError(QFile::RenameError, errorString() + QLatin1Char('\n')
                        + tr("Unable to restore from %1: %2").
                        arg(QDir::toNativeSeparators(tempFile.fileName()), tempFile.errorString()));
        }
        return false;
#endif // Q_OS_LINUX
#endif // QT_NO_TEMPORARYFILE
    }
    unsetError();
    close();
    if(error() == QFile::NoError) {
        if (d->engine()->rename(newName)) {
            unsetError();
            // engine was able to handle the new name so we just reset it
            d->fileEngine->setFileName(newName);
            d->fileName = newName;
            return true;
        }

        if (isSequential()) {
            d->setError(QFile::RenameError, tr("Will not rename sequential file using block copy"));
            return false;
        }

        QFile out(newName);
        if (open(QIODevice::ReadOnly)) {
            if (out.open(QIODevice::WriteOnly | QIODevice::Truncate)) {
                bool error = false;
                char block[4096];
                qint64 bytes;
                while ((bytes = read(block, sizeof(block))) > 0) {
                    if (bytes != out.write(block, bytes)) {
                        d->setError(QFile::RenameError, out.errorString());
                        error = true;
                        break;
                    }
                }
                if (bytes == -1) {
                    d->setError(QFile::RenameError, errorString());
                    error = true;
                }
                if(!error) {
                    if (!remove()) {
                        d->setError(QFile::RenameError, tr("Cannot remove source file"));
                        error = true;
                    }
                }
                if (error) {
                    out.remove();
//.........这里部分代码省略.........

bool QTemporaryFileEngine::open(QIODevice::OpenMode openMode)
{
    Q_D(QFSFileEngine);
    Q_ASSERT(!isReallyOpen());

    openMode |= QIODevice::ReadWrite;

    if (!filePathIsTemplate)
        return QFSFileEngine::open(openMode);

    QString qfilename = d->fileEntry.filePath();

    // Ensure there is a placeholder mask
    uint phPos = qfilename.length();
    uint phLength = 0;

    while (phPos != 0) {
        --phPos;

        if (qfilename[phPos] == QLatin1Char('X')) {
            ++phLength;
            continue;
        }

        if (phLength >= 6
                || qfilename[phPos] == QLatin1Char('/')) {
            ++phPos;
            break;
        }

        // start over
        phLength = 0;
    }

    if (phLength < 6)
        qfilename.append(QLatin1String(".XXXXXX"));

    // "Nativify" :-)
    QFileSystemEntry::NativePath filename = QFileSystemEngine::absoluteName(
            QFileSystemEntry(qfilename, QFileSystemEntry::FromInternalPath()))
        .nativeFilePath();

    // Find mask in native path
    phPos = filename.length();
    phLength = 0;
    while (phPos != 0) {
        --phPos;

        if (filename[phPos] == Latin1Char('X')) {
            ++phLength;
            continue;
        }

        if (phLength >= 6) {
            ++phPos;
            break;
        }

        // start over
        phLength = 0;
    }

    Q_ASSERT(phLength >= 6);

    QSystemError error;
#if defined(Q_OS_WIN)
    NativeFileHandle &file = d->fileHandle;
#else // POSIX
    NativeFileHandle &file = d->fd;
#endif

    if (!createFileFromTemplate(file, filename, phPos, phLength, error)) {
        setError(QFile::OpenError, error.toString());
        return false;
    }

    d->fileEntry = QFileSystemEntry(filename, QFileSystemEntry::FromNativePath());

#if !defined(Q_OS_WIN) || defined(Q_OS_WINRT)
    d->closeFileHandle = true;
#endif

    filePathIsTemplate = false;

    d->openMode = openMode;
    d->lastFlushFailed = false;
    d->tried_stat = 0;

    return true;
}

bool QFSFileEngine::rmdir(const QString &name, bool recurseParentDirectories) const
{
    return QFileSystemEngine::removeDirectory(QFileSystemEntry(name), recurseParentDirectories);
}

/*!
    Constructs a QDirIterator that can iterate over \a path. You can pass
    options via \a flags to decide how the directory should be iterated.

    By default, \a flags is NoIteratorFlags, which provides the same behavior
    as in QDir::entryList().

    \note To list symlinks that point to non existing files, QDir::System must be
     passed to the flags.

    \sa hasNext(), next(), IteratorFlags
*/
QDirIterator::QDirIterator(const QString &path, IteratorFlags flags)
    : d(new QDirIteratorPrivate(QFileSystemEntry(path), QStringList(), QDir::NoFilter, flags))
{
}

bool QFSFileEngine::mkdir(const QString &name, bool createParentDirectories) const
{
    return QFileSystemEngine::createDirectory(QFileSystemEntry(name), createParentDirectories);
}