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/*****************************************************************************
* $CAMITK_LICENCE_BEGIN$
*
* CamiTK - Computer Assisted Medical Intervention ToolKit
* (c) 2001-2025 Univ. Grenoble Alpes, CNRS, Grenoble INP - UGA, TIMC, 38000 Grenoble, France
*
* Visit http://camitk.imag.fr for more information
*
* This file is part of CamiTK.
*
* CamiTK is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* CamiTK is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with CamiTK. If not, see <http://www.gnu.org/licenses/>.
*
* $CAMITK_LICENCE_END$
****************************************************************************/
#ifndef __CPP_HOTPLUG_ACTION_EXTENSION__
#define __CPP_HOTPLUG_ACTION_EXTENSION__
#include "HotPlugActionExtension.h"
#include <QFileSystemWatcher>
#include <QMutex>
namespace camitk {
/**
* @brief An ActionExtension that can be created on the fly from a camitk extension file
*
*/
class CAMITK_API CppHotPlugActionExtension : public HotPlugActionExtension {
Q_OBJECT
public:
/// constructor
CppHotPlugActionExtension(const QString& camitkFilePath, bool forceRebuild = false);
/// destructor
~CppHotPlugActionExtension() override;
/// get the programming language of this extension
virtual QString getProgrammingLanguage() const override {
return "C++";
}
/// instantiate all the C++ actions (might generate some warnings).
/// @note this method must set the successfullyLoaded to false and return false when some action could not
/// be instantiated
/// @param progressMinimum is the current initial progress value
/// @param progressMaximum is the maximum progress bar value to use when all actions are initialized
virtual bool initActions(int progressMinimum = 0, int progressMaximum = 100) override;
/// add this file to the file system watcher
/// In fact only one library is watched (the last to register)
/// As all the library should be updated at the same time during a rebuild
/// only one file is to be watched: the extension only needs to be
/// informed once (this will avoid race condition in the
/// signal sent by fileSystemWatcher)
void watchActionLibrary(QString libraryPath, HotPlugAction* action);
private slots:
/// when the file watcher detect something changed
void extensionRebuilt(const QString& path, int timerCallCount = 0);
/// ensure all files in watchedUserActionLibraries are watched by fileSystemWatcher
void updateWatchedFiles();
private:
/// rebuild the extension using CMake to configure+build
virtual void rebuild();
/// block the extensionRebuilt() body instructions so that only one rebuild is done at the same time
QMutex reloadMutex;
/// @brief watch for the library changes and reload when needed
/// new HotPlugAction register themselves by calling watchActionLibrary()
QFileSystemWatcher fileSystemWatcher;
/// key = shared library file path to watch corresponding to the HotPlugAction
QMap<QString, HotPlugAction*> watchedUserActionLibraries;
};
} // namespace camitk
#endif // __CPP_HOTPLUG_ACTION_EXTENSION__
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