a8a8080248
For more info see: https://blogs.kde.org/2015/05/13/simple-qt-container-optimization-you-should-do-your-code
131 lines
3.6 KiB
C++
131 lines
3.6 KiB
C++
#include "responsewaiter.h"
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#include <QDBusPendingCall>
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#include <QDBusPendingReply>
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#include <QDebug>
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#include <QCoreApplication>
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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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{
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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
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<< qRegisterMetaType<QDBusPendingReply<> >("QDBusPendingReply<>")
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<< qRegisterMetaType<QDBusPendingReply<QVariant> >("QDBusPendingReply<QVariant>")
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<< qRegisterMetaType<QDBusPendingReply<bool> >("QDBusPendingReply<bool>")
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<< qRegisterMetaType<QDBusPendingReply<int> >("QDBusPendingReply<int>")
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<< qRegisterMetaType<QDBusPendingReply<QString> >("QDBusPendingReply<QString>")
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;
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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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{
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call->waitForFinished();
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if (call->isError())
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{
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return QVariant("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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{
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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, SIGNAL(timeout()), this, SLOT(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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{
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QDBusPendingCallWatcher* watcher = new QDBusPendingCallWatcher(*call);
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watcher->setProperty("pengingCallVariant", variant);
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connect(watcher, SIGNAL(finished(QDBusPendingCallWatcher*)), this, SLOT(onCallFinished(QDBusPendingCallWatcher*)));
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connect(watcher, SIGNAL(finished(QDBusPendingCallWatcher*)), watcher, SLOT(deleteLater()));
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connect(&m_timeout, SIGNAL(timeout()), watcher, SLOT(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("pengingCallVariant");
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if (QDBusPendingCall* call = const_cast<QDBusPendingCall*>(DBusResponseWaiter::instance()->extractPendingCall(variant)))
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{
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if (call->isError())
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{
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Q_EMIT error(call->error().message());
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}
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else
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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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{
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Q_EMIT success(reply.arguments().at(0));
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}
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else
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{
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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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{
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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("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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Q_FOREACH(int type, m_registered)
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{
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if (variant.canConvert(QVariant::Type(type)))
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{
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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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