1 files changed, 109 insertions, 0 deletions
diff --git a/src/libs/kdtools/runoncechecker.cpp b/src/libs/kdtools/runoncechecker.cpp
new file mode 100644
index 000000000..21b17ed81
--- /dev/null
+++ b/src/libs/kdtools/runoncechecker.cpp
@@ -0,0 +1,109 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Klaralvdalens Datakonsult AB (KDAB)
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Installer Framework.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** 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 http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "runoncechecker.h"
+#include "lockfile.h"
+#include "sysinfo.h"
+
+#include <QCoreApplication>
+#include <QDebug>
+#include <QDir>
+#include <QFileInfo>
+#include <QList>
+
+#include <algorithm>
+
+using namespace KDUpdater;
+
+RunOnceChecker::RunOnceChecker(const QString &filename)
+    : m_lockfile(filename)
+{
+}
+
+RunOnceChecker::~RunOnceChecker()
+{
+    if (!m_lockfile.unlock())
+        qWarning().noquote() << m_lockfile.errorString();
+}
+
+class ProcessnameEquals
+{
+public:
+    ProcessnameEquals(const QString &name)
+#ifdef Q_OS_WIN
+        : m_name(name.toLower())
+#else
+        : m_name(name)
+#endif
+    {}
+
+    bool operator()(const ProcessInfo &info)
+    {
+#ifdef Q_OS_WIN
+        const QString infoName = info.name.toLower();
+        if (infoName == QDir::toNativeSeparators(m_name))
+            return true;
+#else
+        const QString infoName = info.name;
+#endif
+        if (infoName == m_name)
+            return true;
+
+        const QFileInfo fi(infoName);
+        if (fi.fileName() == m_name || fi.baseName() == m_name)
+            return true;
+        return false;
+    }
+
+private:
+    QString m_name;
+};
+
+bool RunOnceChecker::isRunning(RunOnceChecker::ConditionFlags flags)
+{
+    if (flags.testFlag(ConditionFlag::ProcessList)) {
+        const QList<ProcessInfo> allProcesses = runningProcesses();
+        const int count = std::count_if(allProcesses.constBegin(), allProcesses.constEnd(),
+            ProcessnameEquals(QCoreApplication::applicationFilePath()));
+        return (count > 1);
+    }
+
+    if (flags.testFlag(ConditionFlag::Lockfile)) {
+        const bool locked = m_lockfile.lock();
+        if (!locked)
+            qWarning().noquote() << m_lockfile.errorString();
+        return !locked;
+    }
+    return false;
+}