/*!
\internal
*/
void QDirIteratorPrivate::advance()
{
// Store the current entry
if (!fileEngineIterators.isEmpty())
currentFilePath = fileEngineIterators.top()->currentFilePath();
// Advance to the next entry
if (followNextDir) {
// Start by navigating into the current directory.
followNextDir = false;
QAbstractFileEngineIterator *it = fileEngineIterators.top();
QString subDir = it->currentFilePath();
#ifdef Q_OS_WIN
if (currentFileInfo.isSymLink())
subDir = currentFileInfo.canonicalFilePath();
#endif
pushSubDirectory(subDir, it->nameFilters(), it->filters());
}
while (!fileEngineIterators.isEmpty()) {
QAbstractFileEngineIterator *it = fileEngineIterators.top();
// Find the next valid iterator that matches the filters.
bool foundDirectory = false;
while (it->hasNext()) {
it->next();
if (matchesFilters(it)) {
currentFileInfo = nextFileInfo;
nextFileInfo = it->currentFileInfo();
// Signal that we want to follow this entry.
followNextDir = shouldFollowDirectory(nextFileInfo);
//We found a matching entry.
return;
} else if (iteratorFlags & QDirIterator::Subdirectories) {
QFileInfo fileInfo = it->currentFileInfo();
if (!shouldFollowDirectory(fileInfo))
continue;
QString subDir = it->currentFilePath();
#ifdef Q_OS_WIN
if (fileInfo.isSymLink())
subDir = fileInfo.canonicalFilePath();
#endif
pushSubDirectory(subDir, it->nameFilters(), it->filters());
foundDirectory = true;
break;
}
}
if (!foundDirectory)
delete fileEngineIterators.pop();
}
currentFileInfo = nextFileInfo;
done = true;
}
/*!
\internal
*/
QDirIteratorPrivate::QDirIteratorPrivate(const QString &path, const QStringList &nameFilters,
QDir::Filters filters, QDirIterator::IteratorFlags flags)
: engine(0), path(path), iteratorFlags(flags), followNextDir(false), first(true), done(false)
{
if (filters == QDir::NoFilter)
filters = QDir::AllEntries;
this->filters = filters;
this->nameFilters = nameFilters;
nextFileInfo.setFile(path);
pushSubDirectory(nextFileInfo.isSymLink() ? nextFileInfo.canonicalFilePath() : path,
nameFilters, filters);
}
/*!
\internal
*/
QFileSystemIteratorPrivate::QFileSystemIteratorPrivate(const QString &path,
const QStringList &nameFilters, QDir::Filters filters,
QFileSystemIterator::IteratorFlags flags)
: iteratorFlags(flags)
{
if (filters == QDir::NoFilter)
filters = QDir::AllEntries;
this->filters = filters;
this->nameFilters = nameFilters;
fileInfo.setFile(path);
QString dir = fileInfo.isSymLink() ? fileInfo.canonicalFilePath() : path;
pushSubDirectory(dir.toLocal8Bit());
// skip to acceptable entry
while (true) {
if (atEnd())
return;
if (isAcceptable())
return;
if (advanceHelper())
return;
}
}
bool QFileSystemIteratorPrivate::advanceHelper()
{
if (m_dirStructs.isEmpty())
return true;
//printf("ADV %d %d\n", int(m_currentDirShown), int(m_nextDirShown));
if ((filters & QDir::Dirs)) {
m_currentDirShown = m_nextDirShown;
if (m_nextDirShown == ShowDir) {
//printf("RESTING ON DIR %s %x\n", m_dirPaths.top().constData(), int(filters));
m_nextDirShown = (filters & QDir::NoDotAndDotDot) ? DontShowDir : ShowDotDir;
// skip start directory itself
if (m_dirStructs.size() == 1 && m_currentDirShown == ShowDir)
return advanceHelper();
return true;
}
if (m_nextDirShown == ShowDotDir) {
//printf("RESTING ON DOT %s %x\n", m_dirPaths.top().constData(), int(filters));
m_nextDirShown = ShowDotDotDir;
return true;
}
if (m_nextDirShown == ShowDotDotDir) {
//printf("RESTING ON DOTDOT %s %x\n", m_dirPaths.top().constData(), int(filters));
m_nextDirShown = DontShowDir;
return true;
}
m_currentDirShown = DontShowDir;
}
#ifdef Q_OS_WIN
m_entry = &m_fileSearchResult;
if (m_bFirstSearchResult) {
m_bFirstSearchResult = false;
} else {
if (!FindNextFile(m_dirStructs.top(), m_entry))
m_entry = 0;
}
while (m_entry && isDotOrDotDot(m_entry->cFileName))
if (!FindNextFile(m_dirStructs.top(), m_entry))
m_entry = 0;
if (!m_entry) {
m_dirPaths.pop();
FindClose(m_dirStructs.pop());
return false;
}
if (m_entry->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
QByteArray ba = m_dirPaths.top();
ba += '\\';
ba += QString::fromWCharArray(m_entry->cFileName);
pushSubDirectory(ba);
}
#else
m_entry = ::readdir(m_dirStructs.top());
while (m_entry && isDotOrDotDot(m_entry->d_name))
m_entry = ::readdir(m_dirStructs.top());
//return false; // further iteration possibly needed
//printf("READ %p %s\n", m_entry, m_entry ? m_entry->d_name : "");
if (!m_entry) {
m_dirPaths.pop();
DIR *dir = m_dirStructs.pop();
::closedir(dir);
return false; // further iteration possibly needed
}
const char *name = m_entry->d_name;
QByteArray ba = m_dirPaths.top();
ba += '/';
ba += name;
struct stat st;
lstat(ba.constData(), &st);
if (S_ISDIR(st.st_mode)) {
pushSubDirectory(ba);
return false; // further iteration possibly needed
}
#endif
return false; // further iteration possiblye needed
}
/*!
\internal
*/
void QDirIteratorPrivate::advance()
{
// Store the current entry
if (!fileEngineIterators.isEmpty())
currentFilePath = fileEngineIterators.top()->currentFilePath();
// Advance to the next entry
if (followNextDir) {
// Start by navigating into the current directory.
followNextDir = false;
QAbstractFileEngineIterator *it = fileEngineIterators.top();
QString subDir = it->currentFilePath();
#ifdef Q_OS_WIN
if (fileInfo.isSymLink())
subDir = fileInfo.canonicalFilePath();
#endif
pushSubDirectory(subDir, it->nameFilters(), it->filters());
}
if (fileEngineIterators.isEmpty())
done = true;
bool foundValidEntry = false;
while (!fileEngineIterators.isEmpty()) {
QAbstractFileEngineIterator *it = fileEngineIterators.top();
// Find the next valid iterator that matches the filters.
foundValidEntry = false;
while (it->hasNext()) {
it->next();
if (matchesFilters(it)) {
foundValidEntry = true;
break;
}
}
if (!foundValidEntry) {
// If this iterator is done, pop and delete it, and continue
// iteration on the parent. Otherwise break, we're done.
if (!fileEngineIterators.isEmpty()) {
delete it;
it = fileEngineIterators.pop();
continue;
}
break;
}
fileInfo = it->currentFileInfo();
// If we're doing flat iteration, we're done.
if (!(iteratorFlags & QDirIterator::Subdirectories))
break;
// Subdirectory iteration.
QString filePath = fileInfo.filePath();
// Never follow . and ..
if (fileInfo.fileName() == QLatin1String(".") || fileInfo.fileName() == QLatin1String(".."))
break;
// Never follow non-directory entries
if (!fileInfo.isDir())
break;
// Check symlinks
if (fileInfo.isSymLink() && !(iteratorFlags & QDirIterator::FollowSymlinks)) {
// Follow symlinks only if FollowSymlinks was passed
break;
}
// Stop link loops
if (visitedLinks.contains(fileInfo.canonicalFilePath()))
break;
// Signal that we want to follow this entry.
followNextDir = true;
break;
}
if (!foundValidEntry)
done = true;
}
