QFileSystemIterator Class Reference

#include <qfilesystemiterator_p.h>

Public Functions
bool	advance (QFileSystemEntry &fileEntry, QFileSystemMetaData &metaData)
	QFileSystemIterator (const QFileSystemEntry &entry, QDir::Filters filters, const QStringList &nameFilters, QDirIterator::IteratorFlags flags=QDirIterator::FollowSymlinks|QDirIterator::Subdirectories)
	~QFileSystemIterator ()

Properties
QFileSystemEntry::NativePath	dirPath
HANDLE	findFileHandle
QFileSystemEntry::NativePath	nativePath
bool	onlyDirs
bool	uncFallback
int	uncShareIndex
QStringList	uncShares

Detailed Description

Definition at line 77 of file qfilesystemiterator_p.h.

Constructors and Destructors

QFileSystemIterator()

QFileSystemIterator::QFileSystemIterator	(	const QFileSystemEntry &	entry,
		QDir::Filters	filters,
		const QStringList &	nameFilters,
		QDirIterator::IteratorFlags	flags = QDirIterator::FollowSymlinks | QDirIterator::Subdirectories
	)

Definition at line 52 of file qfilesystemiterator_unix.cpp.

    : nativePath(entry.nativeFilePath())
    , dir(0)
    , dirEntry(0)
#if defined(Q_OS_QNX) && defined(__EXT_QNX__READDIR_R)
    , direntSize(0)
#endif
    , 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);
#if defined(Q_OS_QNX) && defined(__EXT_QNX__READDIR_R)
        direntSize = maxPathName;

        // Include extra stat information in the readdir() call (d_stat member of dirent_extra_stat).
        // This is used in QFileSystemMetaData::fillFromDirEnt() to avoid extra stat() calls when iterating
        // over directories
        if (dircntl(dir, D_SETFLAG, D_FLAG_STAT) == -1)
            lastError = errno;
#endif
#endif
    }
}

~QFileSystemIterator()

QFileSystemIterator::~QFileSystemIterator

(

)

Definition at line 97 of file qfilesystemiterator_unix.cpp.

{
    if (dir)
        QT_CLOSEDIR(dir);
}

Functions

advance()

bool QFileSystemIterator::advance	(	QFileSystemEntry &	fileEntry,
		QFileSystemMetaData &	metaData
	)

Definition at line 103 of file qfilesystemiterator_unix.cpp.

Referenced by QFSFileEngineIterator::advance(), and QDirIteratorPrivate::advance().

{
    if (!dir)
        return false;

#if defined(Q_OS_QNX) && defined(QT_EXT_QNX_READDIR_R)
    lastError = QT_EXT_QNX_READDIR_R(dir, mt_file.data(), &dirEntry, direntSize);
    if (lastError)
        return false;
#elif 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;
}

Properties

dirPath

QFileSystemEntry::NativePath QFileSystemIterator::dirPath

private

Definition at line 92 of file qfilesystemiterator_p.h.

findFileHandle

HANDLE QFileSystemIterator::findFileHandle

private

Definition at line 93 of file qfilesystemiterator_p.h.

nativePath

QFileSystemEntry::NativePath QFileSystemIterator::nativePath

private

Definition at line 88 of file qfilesystemiterator_p.h.

Referenced by advance(), and QFileSystemIterator().

onlyDirs

bool QFileSystemIterator::onlyDirs

private

Definition at line 97 of file qfilesystemiterator_p.h.

uncFallback

bool QFileSystemIterator::uncFallback

private

Definition at line 95 of file qfilesystemiterator_p.h.

uncShareIndex

int QFileSystemIterator::uncShareIndex

private

Definition at line 96 of file qfilesystemiterator_p.h.

uncShares

QStringList QFileSystemIterator::uncShares

private

Definition at line 94 of file qfilesystemiterator_p.h.

---

The documentation for this class was generated from the following files:

• /src/corelib/io/qfilesystemiterator_p.h
• /src/corelib/io/qfilesystemiterator_unix.cpp
• /src/corelib/io/qfilesystemiterator_win.cpp