| /**************************************************************************** |
| ** |
| ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). |
| ** All rights reserved. |
| ** Contact: Nokia Corporation (qt-info@nokia.com) |
| ** |
| ** This file is part of the QtCore module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** GNU Lesser General Public License Usage |
| ** This file may be used under the terms of the GNU Lesser General Public |
| ** License version 2.1 as published by the Free Software Foundation and |
| ** appearing in the file LICENSE.LGPL included in the packaging of this |
| ** file. Please review the following information to ensure the GNU Lesser |
| ** General Public License version 2.1 requirements will be met: |
| ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
| ** |
| ** In addition, as a special exception, Nokia gives you certain additional |
| ** rights. These rights are described in the Nokia Qt LGPL Exception |
| ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU General |
| ** Public License version 3.0 as published by the Free Software Foundation |
| ** and appearing in the file LICENSE.GPL included in the packaging of this |
| ** file. Please review the following information to ensure the GNU General |
| ** Public License version 3.0 requirements will be met: |
| ** http://www.gnu.org/copyleft/gpl.html. |
| ** |
| ** Other Usage |
| ** Alternatively, this file may be used in accordance with the terms and |
| ** conditions contained in a signed written agreement between you and Nokia. |
| ** |
| ** |
| ** |
| ** |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #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 |
| |
| QNotifyChangeEvent::QNotifyChangeEvent(RFs &fs, const TDesC &file, |
| QSymbianFileSystemWatcherEngine *e, bool aIsDir, |
| TInt aPriority) : |
| CActive(aPriority), |
| isDir(aIsDir), |
| fsSession(fs), |
| watchedPath(file), |
| engine(e), |
| failureCount(0) |
| { |
| if (isDir) { |
| fsSession.NotifyChange(ENotifyEntry, iStatus, file); |
| } else { |
| fsSession.NotifyChange(ENotifyAll, iStatus, file); |
| } |
| CActiveScheduler::Add(this); |
| SetActive(); |
| } |
| |
| QNotifyChangeEvent::~QNotifyChangeEvent() |
| { |
| Cancel(); |
| } |
| |
| void QNotifyChangeEvent::RunL() |
| { |
| if(iStatus.Int() == KErrNone) { |
| failureCount = 0; |
| } else { |
| qWarning("QNotifyChangeEvent::RunL() - Failed to order change notifications: %d", iStatus.Int()); |
| failureCount++; |
| } |
| |
| // Re-request failed notification once, but if it won't start working, |
| // we can't do much besides just not request any more notifications. |
| if (failureCount < 2) { |
| if (isDir) { |
| fsSession.NotifyChange(ENotifyEntry, iStatus, watchedPath); |
| } else { |
| fsSession.NotifyChange(ENotifyAll, iStatus, watchedPath); |
| } |
| SetActive(); |
| |
| if (!failureCount) { |
| QT_TRYCATCH_LEAVING(engine->emitPathChanged(this)); |
| } |
| } |
| } |
| |
| void QNotifyChangeEvent::DoCancel() |
| { |
| fsSession.NotifyChangeCancel(iStatus); |
| } |
| |
| 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; |
| |
| startWatcher(); |
| |
| 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(L'/')) { |
| filePath += QChar(L'/'); |
| } |
| |
| currentAddEvent = NULL; |
| QMetaObject::invokeMethod(this, |
| "addNativeListener", |
| Qt::QueuedConnection, |
| Q_ARG(QString, filePath)); |
| |
| syncCondition.wait(&mutex); |
| if (currentAddEvent) { |
| currentAddEvent->isDir = isDir; |
| |
| activeObjectToPath.insert(currentAddEvent, 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(); |
| |
| currentRemoveEvent = activeObjectToPath.key(path); |
| if (!currentRemoveEvent) |
| continue; |
| activeObjectToPath.remove(currentRemoveEvent); |
| |
| QMetaObject::invokeMethod(this, |
| "removeNativeListener", |
| Qt::QueuedConnection); |
| |
| syncCondition.wait(&mutex); |
| |
| it.remove(); |
| |
| files->removeAll(path); |
| directories->removeAll(path); |
| } |
| |
| return p; |
| } |
| |
| void QSymbianFileSystemWatcherEngine::emitPathChanged(QNotifyChangeEvent *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 |
| void QSymbianFileSystemWatcherEngine::startWatcher() |
| { |
| if (!watcherStarted) { |
| setStackSize(0x5000); |
| start(); |
| syncCondition.wait(&mutex); |
| watcherStarted = true; |
| } |
| } |
| |
| |
| void QSymbianFileSystemWatcherEngine::run() |
| { |
| mutex.lock(); |
| syncCondition.wakeOne(); |
| mutex.unlock(); |
| |
| exec(); |
| |
| foreach(QNotifyChangeEvent *e, activeObjectToPath.keys()) { |
| e->Cancel(); |
| delete e; |
| } |
| |
| activeObjectToPath.clear(); |
| } |
| |
| void QSymbianFileSystemWatcherEngine::addNativeListener(const QString &directoryPath) |
| { |
| QMutexLocker locker(&mutex); |
| QString nativeDir(QDir::toNativeSeparators(directoryPath)); |
| TPtrC ptr(qt_QString2TPtrC(nativeDir)); |
| currentAddEvent = new QNotifyChangeEvent(qt_s60GetRFs(), ptr, this, directoryPath.endsWith(QChar(L'/'), Qt::CaseSensitive)); |
| syncCondition.wakeOne(); |
| } |
| |
| void QSymbianFileSystemWatcherEngine::removeNativeListener() |
| { |
| QMutexLocker locker(&mutex); |
| currentRemoveEvent->Cancel(); |
| delete currentRemoveEvent; |
| currentRemoveEvent = NULL; |
| syncCondition.wakeOne(); |
| } |
| |
| |
| QT_END_NAMESPACE |
| #endif // QT_NO_FILESYSTEMWATCHER |