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Diffstat (limited to 'src/libs/kdtools/selfrestarter.cpp')
-rw-r--r-- | src/libs/kdtools/selfrestarter.cpp | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/src/libs/kdtools/selfrestarter.cpp b/src/libs/kdtools/selfrestarter.cpp new file mode 100644 index 000000000..e94d0fea7 --- /dev/null +++ b/src/libs/kdtools/selfrestarter.cpp @@ -0,0 +1,93 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Klaralvdalens Datakonsult AB (KDAB) +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the Qt Installer Framework. +** +** $QT_BEGIN_LICENSE:GPL-EXCEPT$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 as published by the Free Software +** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "selfrestarter.h" + +#include <QtCore/QCoreApplication> +#include <QtCore/QDir> +#include <QtCore/QProcess> + +class SelfRestarter::Private +{ +public: + Private(int argc, char *argv[]) + : restartOnQuit(false) + { + executable = QString::fromLocal8Bit(argv[0]); + workingPath = QDir::currentPath(); + for (int i = 1; i < argc; ++i) + args << QString::fromLocal8Bit(argv[i]); + } + + Private() + { + executable = qApp->applicationFilePath(); + workingPath = QDir::currentPath(); + args = qApp->arguments().mid(1); + } + + ~Private() + { + if (restartOnQuit) + QProcess::startDetached(executable, args, workingPath); + } + + QString executable; + QStringList args; + bool restartOnQuit; + QString workingPath; + static SelfRestarter *instance; +}; + +SelfRestarter *SelfRestarter::Private::instance = 0; + +SelfRestarter::SelfRestarter(int argc, char *argv[]) + : d(new Private(argc, argv)) +{ + Q_ASSERT_X(!Private::instance, Q_FUNC_INFO, "Cannot create more than one SelfRestarter instance"); + Private::instance = this; +} + +SelfRestarter::~SelfRestarter() +{ + Q_ASSERT_X(Private::instance == this, Q_FUNC_INFO, "Cannot create more than one SelfRestarter instance"); + delete d; + Private::instance = 0; +} + +void SelfRestarter::setRestartOnQuit(bool restart) +{ + Q_ASSERT_X(Private::instance, Q_FUNC_INFO, "SelfRestarter instance must be created in main()"); + if (Private::instance) + Private::instance->d->restartOnQuit = restart; +} + +bool SelfRestarter::restartOnQuit() +{ + return Private::instance ? Private::instance->d->restartOnQuit : false; +} |