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/*
SPDX-FileCopyrightText: 2017 Valerio Pilo <vpilo@coldshock.net>
SPDX-License-Identifier: LGPL-2.0-only
*/
#include <QCommandLineParser>
#include <QDebug>
#include <QDBusConnection>
#include <QDBusConnectionInterface>
#include <QDBusServiceWatcher>
#include <unistd.h>
#include "debug_p.h"
#include "waiter.h"
constexpr static const char dbusServiceName[] = "org.freedesktop.Notifications";
Waiter::Waiter(int argc, char **argv)
: QCoreApplication(argc, argv)
, mService(dbusServiceName)
{
setApplicationName(QStringLiteral("plasma_waitforname"));
setApplicationVersion(QStringLiteral("1.0"));
QCommandLineParser parser;
parser.setApplicationDescription(
QStringLiteral("Waits for D-Bus registration of the Notifications service.\n"
"Prevents notifications from being processed before the desktop is ready."));
parser.addHelpOption();
parser.addVersionOption();
parser.addPositionalArgument(QStringLiteral("service"),
QStringLiteral("Optionally listen for a service different than '%1'").arg(mService),
QStringLiteral("[service]"));
parser.process(*this);
const QStringList args = parser.positionalArguments();
if (!args.isEmpty()) {
mService = args.at(0);
}
}
bool Waiter::waitForService()
{
QDBusConnection sessionBus = QDBusConnection::sessionBus();
if (sessionBus.interface()->isServiceRegistered(mService)) {
qCDebug(LOG_PLASMA) << "WaitForName: Service" << mService << "is already registered";
return false;
}
qCDebug(LOG_PLASMA) << "WaitForName: Waiting for appearance of service" << mService << "for" << dbusTimeoutSec << "seconds";
QDBusServiceWatcher *watcher = new QDBusServiceWatcher(this);
watcher->setConnection(sessionBus);
watcher->setWatchMode(QDBusServiceWatcher::WatchForRegistration);
watcher->addWatchedService(mService);
connect(watcher, &QDBusServiceWatcher::serviceRegistered, this, &Waiter::registered);
mTimeoutTimer.setSingleShot(true);
mTimeoutTimer.setInterval(dbusTimeoutSec * 1000);
connect(&mTimeoutTimer, &QTimer::timeout, this, &Waiter::timeout);
mTimeoutTimer.start();
return true;
}
void Waiter::registered()
{
qCDebug(LOG_PLASMA) << "WaitForName: Service was registered after" << (dbusTimeoutSec - (mTimeoutTimer.remainingTime() / 1000)) << "seconds";
mTimeoutTimer.stop();
exit(0);
}
void Waiter::timeout()
{
qCInfo(LOG_PLASMA) << "WaitForName: Service was not registered within timeout";
exit(1);
}
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