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/****************************************************************************
**
** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the $MODULE$ of the Qt Toolkit.
**
** $TROLLTECH_DUAL_EMBEDDED_LICENSE$
**
****************************************************************************/
#include "qfilesystemwatcher.h"
#include "qfilesystemwatcher_symbian_p.h"
#include "qfileinfo.h"
#include "qdebug.h"
#include "private/qcore_symbian_p.h"
#include <QDir>
#ifndef QT_NO_FILESYSTEMWATCHER
QT_BEGIN_NAMESPACE
CNotifyChangeEvent* CNotifyChangeEvent::New(RFs &fs, const TDesC& file,
QSymbianFileSystemWatcherEngine* e)
{
CNotifyChangeEvent* self = new CNotifyChangeEvent(fs, file, e);
return self;
}
CNotifyChangeEvent::CNotifyChangeEvent(RFs &fs, const TDesC& file,
QSymbianFileSystemWatcherEngine* e, TInt aPriority) :
CActive(aPriority),
fsSession(fs),
watchedPath(file),
engine(e)
{
fsSession.NotifyChange(ENotifyAll, iStatus, file);
CActiveScheduler::Add(this);
SetActive();
}
CNotifyChangeEvent::~CNotifyChangeEvent()
{
Cancel();
}
void CNotifyChangeEvent::RunL()
{
if (iStatus.Int() == KErrNone){
fsSession.NotifyChange(ENotifyAll, iStatus, watchedPath);
SetActive();
engine->emitPathChanged(this);
} else {
qWarning("CNotifyChangeEvent::RunL() - Failed to order change notifications: %d", iStatus.Int());
}
}
void CNotifyChangeEvent::DoCancel()
{
fsSession.NotifyChangeCancel();
}
QSymbianFileSystemWatcherEngine::QSymbianFileSystemWatcherEngine() :
watcherStarted(false)
{
moveToThread(this);
}
QSymbianFileSystemWatcherEngine::~QSymbianFileSystemWatcherEngine()
{
stop();
}
QStringList QSymbianFileSystemWatcherEngine::addPaths(const QStringList &paths,
QStringList *files, QStringList *directories)
{
QMutexLocker locker(&mutex);
QStringList p = paths;
if (!startWatcher()) {
qWarning("Could not start QSymbianFileSystemWatcherEngine thread");
return p;
}
QMutableListIterator<QString> it(p);
while (it.hasNext()) {
QString path = it.next();
QFileInfo fi(path);
if (!fi.exists())
continue;
bool isDir = fi.isDir();
if (isDir) {
if (directories->contains(path))
continue;
} else {
if (files->contains(path))
continue;
}
// Use absolute filepath as relative paths seem to have some issues.
QString filePath = fi.absoluteFilePath();
if(isDir && filePath.at(filePath.size()-1) != QChar('/')) {
filePath += QChar('/');
}
currentEvent = NULL;
QMetaObject::invokeMethod(this,
"addNativeListener",
Qt::QueuedConnection,
Q_ARG(QString, filePath));
syncCondition.wait(&mutex);
if (currentEvent) {
currentEvent->isDir = isDir;
activeObjectToPath.insert(currentEvent, path);
it.remove();
if (isDir)
directories->append(path);
else
files->append(path);
}
}
return p;
}
QStringList QSymbianFileSystemWatcherEngine::removePaths(const QStringList &paths,
QStringList *files, QStringList *directories)
{
QMutexLocker locker(&mutex);
QStringList p = paths;
QMutableListIterator<QString> it(p);
while (it.hasNext()) {
QString path = it.next();
currentEvent = activeObjectToPath.key(path);
if (!currentEvent)
continue;
activeObjectToPath.remove(currentEvent);
QMetaObject::invokeMethod(this,
"removeNativeListener",
Qt::QueuedConnection);
syncCondition.wait(&mutex);
it.remove();
files->removeAll(path);
directories->removeAll(path);
}
if (activeObjectToPath.size() == 0)
stop();
return p;
}
void QSymbianFileSystemWatcherEngine::emitPathChanged(CNotifyChangeEvent *e)
{
QMutexLocker locker(&mutex);
QString path = activeObjectToPath.value(e);
QFileInfo fi(path);
if (e->isDir) {
emit directoryChanged(path, !fi.exists());
} else {
emit fileChanged(path, !fi.exists());
}
}
void QSymbianFileSystemWatcherEngine::stop()
{
QMetaObject::invokeMethod(this, "quit");
wait();
}
// This method must be called inside mutex
bool QSymbianFileSystemWatcherEngine::startWatcher()
{
bool retval = true;
if (!watcherStarted) {
#if defined(Q_OS_SYMBIAN)
setStackSize(0x5000);
#endif
start();
syncCondition.wait(&mutex);
if (errorCode != KErrNone) {
retval = false;
} else {
watcherStarted = true;
}
}
return retval;
}
void QSymbianFileSystemWatcherEngine::run()
{
// Initialize file session
errorCode = fsSession.Connect();
mutex.lock();
syncCondition.wakeOne();
mutex.unlock();
if (errorCode == KErrNone) {
exec();
foreach(CNotifyChangeEvent* e, activeObjectToPath.keys()) {
e->Cancel();
delete e;
}
activeObjectToPath.clear();
fsSession.Close();
watcherStarted = false;
}
}
void QSymbianFileSystemWatcherEngine::addNativeListener(const QString &directoryPath)
{
QMutexLocker locker(&mutex);
HBufC* buffer = qt_QString2HBufCNewL(QDir::toNativeSeparators(directoryPath));
currentEvent = CNotifyChangeEvent::New(fsSession, *buffer, this);
delete buffer;
syncCondition.wakeOne();
}
void QSymbianFileSystemWatcherEngine::removeNativeListener()
{
QMutexLocker locker(&mutex);
currentEvent->Cancel();
delete currentEvent;
currentEvent = NULL;
syncCondition.wakeOne();
}
QT_END_NAMESPACE
#endif // QT_NO_FILESYSTEMWATCHER
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