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90 lines
2.5 KiB
C++
90 lines
2.5 KiB
C++
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/*
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This file is part of the KDE
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Copyright (C) 2009 Tobias Koenig (tokoe@kde.org)
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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version 2 as published by the Free Software Foundation.
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This software is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this library; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include "kinterprocesslock.h"
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#include <QtCore/QEventLoop>
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#include <QtDBus/QDBusConnectionInterface>
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#include <QtCore/QDebug>
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class KInterProcessLock::Private
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{
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public:
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Private(const QString &resource, KInterProcessLock *parent)
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: m_resource(resource), m_parent(parent)
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{
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m_serviceName = QString::fromLatin1("org.kde.private.lock-%1").arg(m_resource);
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m_parent->connect(QDBusConnection::sessionBus().interface(), SIGNAL(serviceRegistered(const QString&)),
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m_parent, SLOT(_k_serviceRegistered(const QString&)));
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}
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~Private()
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{
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}
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void _k_serviceRegistered(const QString &service)
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{
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if (service == m_serviceName)
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emit m_parent->lockGranted(m_parent);
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}
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QString m_resource;
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QString m_serviceName;
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KInterProcessLock *m_parent;
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};
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KInterProcessLock::KInterProcessLock(const QString &resource)
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: d(new Private(resource, this))
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{
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}
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KInterProcessLock::~KInterProcessLock()
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{
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delete d;
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}
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QString KInterProcessLock::resource() const
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{
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return d->m_resource;
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}
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void KInterProcessLock::lock()
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{
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QDBusConnection::sessionBus().interface()->registerService(d->m_serviceName,
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QDBusConnectionInterface::QueueService,
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QDBusConnectionInterface::DontAllowReplacement);
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}
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void KInterProcessLock::unlock()
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{
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QDBusConnection::sessionBus().interface()->unregisterService(d->m_serviceName);
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}
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void KInterProcessLock::waitForLockGranted()
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{
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QEventLoop loop;
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connect(this, SIGNAL(lockGranted(KInterProcessLock*)), &loop, SLOT(quit()));
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loop.exec();
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}
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#include "kinterprocesslock.moc"
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