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main.cpp
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main.cpp
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/******************************************************************************
* Copyright 2011 Juan Carlos Cornejo jc2@paintblack.com
*
* This file is part of owncloud_sync_qt.
*
* owncloud_sync is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* owncloud_sync 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with owncloud_sync. If not, see <http://www.gnu.org/licenses/>.
******************************************************************************/
#include <QtGui/QApplication>
#include "SyncWindow.h"
#include <QSharedMemory>
#include <QMessageBox>
int quitOtherInstanceRunning()
{
QMessageBox box;
box.setText(QMessageBox::tr("Either another instance is already running or "
"the last instance crashed. You may try running"
" this again to clear it."));
box.setDefaultButton(QMessageBox::Ok);
box.exec();
return -1;
}
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
// Technique for having only one application running at the same time per
// computer.
QSharedMemory sharedMemory;
sharedMemory.setKey("8SyGEyz2kcI0UNrqxc7wcuKLjD1pSL8GezlBM1W0QckgpjMon0");
if(sharedMemory.attach()) {
return quitOtherInstanceRunning();
}
if (!sharedMemory.create(1)) {
return quitOtherInstanceRunning();
}
// Great. No other instance is running, so we can run the program.
SyncWindow w;
//w.show();
return a.exec();
}