118 lines
3.7 KiB
C++
118 lines
3.7 KiB
C++
/**
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* SPDX-FileCopyrightText: 2013 Albert Vaca <albertvaka@gmail.com>
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*
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* SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
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*/
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#include "responsewaiter.h"
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#include <QCoreApplication>
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#include <QDBusPendingCall>
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#include <QDBusPendingReply>
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#include <QDebug>
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Q_DECLARE_METATYPE(QDBusPendingReply<>)
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Q_DECLARE_METATYPE(QDBusPendingReply<QVariant>)
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Q_DECLARE_METATYPE(QDBusPendingReply<bool>)
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Q_DECLARE_METATYPE(QDBusPendingReply<int>)
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Q_DECLARE_METATYPE(QDBusPendingReply<QString>)
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DBusResponseWaiter *DBusResponseWaiter::m_instance = nullptr;
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DBusResponseWaiter *DBusResponseWaiter::instance()
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{
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if (!m_instance) {
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m_instance = new DBusResponseWaiter();
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}
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return m_instance;
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}
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DBusResponseWaiter::DBusResponseWaiter()
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: QObject()
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{
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m_registered << qRegisterMetaType<QDBusPendingReply<>>("QDBusPendingReply<>")
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<< qRegisterMetaType<QDBusPendingReply<QVariant>>("QDBusPendingReply<QVariant>")
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<< qRegisterMetaType<QDBusPendingReply<bool>>("QDBusPendingReply<bool>") << qRegisterMetaType<QDBusPendingReply<int>>("QDBusPendingReply<int>")
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<< qRegisterMetaType<QDBusPendingReply<QString>>("QDBusPendingReply<QString>");
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}
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QVariant DBusResponseWaiter::waitForReply(QVariant variant) const
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{
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if (QDBusPendingCall *call = const_cast<QDBusPendingCall *>(extractPendingCall(variant))) {
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call->waitForFinished();
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if (call->isError()) {
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qWarning() << "error:" << call->error();
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return QVariant(QStringLiteral("error"));
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}
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QDBusMessage reply = call->reply();
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if (reply.arguments().count() > 0) {
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return reply.arguments().at(0);
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}
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}
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return QVariant();
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}
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DBusAsyncResponse::DBusAsyncResponse(QObject *parent)
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: QObject(parent)
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, m_autodelete(false)
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{
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m_timeout.setSingleShot(true);
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m_timeout.setInterval(15000);
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connect(&m_timeout, &QTimer::timeout, this, &DBusAsyncResponse::onTimeout);
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}
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void DBusAsyncResponse::setPendingCall(QVariant variant)
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{
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if (QDBusPendingCall *call = const_cast<QDBusPendingCall *>(DBusResponseWaiter::instance()->extractPendingCall(variant))) {
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QDBusPendingCallWatcher *watcher = new QDBusPendingCallWatcher(*call);
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watcher->setProperty("pendingCallVariant", variant);
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connect(watcher, &QDBusPendingCallWatcher::finished, this, &DBusAsyncResponse::onCallFinished);
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connect(watcher, &QDBusPendingCallWatcher::finished, watcher, &QObject::deleteLater);
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connect(&m_timeout, &QTimer::timeout, watcher, &QObject::deleteLater);
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m_timeout.start();
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}
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}
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void DBusAsyncResponse::onCallFinished(QDBusPendingCallWatcher *watcher)
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{
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m_timeout.stop();
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QVariant variant = watcher->property("pendingCallVariant");
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if (QDBusPendingCall *call = const_cast<QDBusPendingCall *>(DBusResponseWaiter::instance()->extractPendingCall(variant))) {
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if (call->isError()) {
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Q_EMIT error(call->error().message());
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} else {
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QDBusMessage reply = call->reply();
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if (reply.arguments().count() > 0) {
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Q_EMIT success(reply.arguments().at(0));
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} else {
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Q_EMIT success(QVariant());
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}
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}
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}
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if (m_autodelete) {
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deleteLater();
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}
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}
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void DBusAsyncResponse::onTimeout()
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{
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Q_EMIT error(QStringLiteral("timeout when waiting dbus response!"));
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}
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const QDBusPendingCall *DBusResponseWaiter::extractPendingCall(QVariant &variant) const
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{
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for (int type : std::as_const(m_registered)) {
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if (variant.typeId() == type) {
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return reinterpret_cast<const QDBusPendingCall *>(variant.constData());
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}
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}
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return nullptr;
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}
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#include "moc_responsewaiter.cpp"
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