/***************************************************************************
- * Copyright (C) 2005-08 by the Quassel Project *
+ * Copyright (C) 2005-2018 by the Quassel Project *
* devel@quassel-irc.org *
* *
* This program is free software; you can redistribute it and/or modify *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
-#include "signalproxy.h"
+#include <algorithm>
+#include <utility>
-#include <QObject>
-#include <QIODevice>
-#include <QAbstractSocket>
+#include <QCoreApplication>
#include <QHostAddress>
-#include <QHash>
-#include <QMultiHash>
-#include <QList>
-#include <QSet>
-#include <QDebug>
#include <QMetaMethod>
#include <QMetaProperty>
-#include <QRegExp>
-#include <QSslSocket>
#include <QThread>
-#include <QTime>
-#include <QEvent>
-#include <QCoreApplication>
+#ifdef HAVE_SSL
+# include <QSslSocket>
+#endif
+
+#include "peer.h"
+#include "protocol.h"
+#include "signalproxy.h"
#include "syncableobject.h"
+#include "types.h"
#include "util.h"
-// ==================================================
-// PeerSignalEvent
-// ==================================================
-class PeerSignalEvent : public QEvent {
-public:
- PeerSignalEvent(SignalProxy *sender, SignalProxy::RequestType requestType, const QVariantList ¶ms) : QEvent(QEvent::Type(SignalProxy::PeerSignal)), sender(sender), requestType(requestType), params(params) {}
- SignalProxy *sender;
- SignalProxy::RequestType requestType;
- QVariantList params;
-};
+using namespace Protocol;
-class RemovePeerEvent : public QEvent {
+class RemovePeerEvent : public QEvent
+{
public:
- RemovePeerEvent(QObject *peer) : QEvent(QEvent::Type(SignalProxy::RemovePeer)), peer(peer) {}
- QObject *peer;
+ RemovePeerEvent(Peer* peer)
+ : QEvent(QEvent::Type(SignalProxy::RemovePeerEvent))
+ , peer(peer)
+ {}
+ Peer* peer;
};
// ==================================================
-// SIGNALRELAY
+// SignalProxy
// ==================================================
-class SignalRelay: public QObject {
-/* Q_OBJECT is not necessary or even allowed, because we implement
- qt_metacall ourselves (and don't use any other features of the meta
- object system)
-*/
-public:
- SignalRelay(SignalProxy* parent, QObject* source);
- int qt_metacall(QMetaObject::Call _c, int _id, void **_a);
-
- void attachSignal(int methodId, const QByteArray &func);
-
- void setSynchronize(bool);
- bool synchronize() const;
- int sigCount() const;
-
-private:
- bool isSyncMethod(int i);
-
- SignalProxy* proxy;
- QObject* caller;
- QMultiHash<int, QByteArray> sigNames;
- bool _sync;
-};
+namespace {
+thread_local SignalProxy* _current{nullptr};
+}
-SignalRelay::SignalRelay(SignalProxy* parent, QObject* source)
- : QObject(parent),
- proxy(parent),
- caller(source),
- _sync(false)
+SignalProxy::SignalProxy(QObject* parent)
+ : QObject(parent)
{
- QObject::connect(source, SIGNAL(destroyed()), parent, SLOT(detachSender()));
+ setProxyMode(Client);
+ init();
}
-int SignalRelay::qt_metacall(QMetaObject::Call _c, int _id, void **_a) {
- _id = QObject::qt_metacall(_c, _id, _a);
- if(_id < 0)
- return _id;
- if(_c == QMetaObject::InvokeMetaMethod) {
- if(sigNames.contains(_id) || synchronize()) {
- const QList<int> &argTypes = proxy->argTypes(caller, _id);
- QVariantList params;
- int n = argTypes.size();
- for(int i=0; i<n; i++) {
- if(argTypes[i] == 0) {
- qWarning() << "SignalRelay::qt_metacall(): received invalid data for argument number" << i << "of signal" << QString("%1::%2").arg(caller->metaObject()->className()).arg(caller->metaObject()->method(_id).signature());
- qWarning() << " - make sure all your data types are known by the Qt MetaSystem";
- return _id;
- }
- params.append(QVariant(argTypes[i], _a[i+1]));
- }
- QMultiHash<int, QByteArray>::const_iterator funcIter = sigNames.constFind(_id);
- while(funcIter != sigNames.constEnd() && funcIter.key() == _id) {
- proxy->dispatchSignal(SignalProxy::RpcCall, QVariantList() << funcIter.value() << params);
- funcIter++;
- }
-
- // dispatch Sync Signal if necessary
- QByteArray signature(caller->metaObject()->method(_id).signature());
- SyncableObject *syncObject = qobject_cast<SyncableObject *>(caller);
- if(synchronize() && proxy->syncMap(syncObject).contains(signature)) {
- //qDebug() << "__SYNC__ >>>"
- // << caller->metaObject()->className()
- // << caller->objectName()
- // << signature
- // << params;
- // params.prepend(QVariant(_id));
- params.prepend(signature);
- params.prepend(syncObject->objectName());
- params.prepend(syncObject->syncMetaObject()->className());
- proxy->dispatchSignal(SignalProxy::Sync, params);
- }
- }
- _id -= QObject::staticMetaObject.methodCount();
- }
- return _id;
+SignalProxy::SignalProxy(ProxyMode mode, QObject* parent)
+ : QObject(parent)
+{
+ setProxyMode(mode);
+ init();
}
-void SignalRelay::setSynchronize(bool sync) {
- SyncableObject *syncObject = qobject_cast<SyncableObject *>(caller);
- if(!syncObject)
- return;
-
- const QMetaObject *meta = syncObject->syncMetaObject();
- if(!_sync && sync) {
- // enable Sync
- for(int i = 0; i < meta->methodCount(); i++ ) {
- if(isSyncMethod(i))
- QMetaObject::connect(caller, i, this, QObject::staticMetaObject.methodCount() + i);
- }
- } else if (_sync && !sync) {
- // disable Sync
- for(int i = 0; i < meta->methodCount(); i++ ) {
- if(isSyncMethod(i))
- QMetaObject::disconnect(caller, i, this, QObject::staticMetaObject.methodCount() + i);
+SignalProxy::~SignalProxy()
+{
+ QHash<QByteArray, ObjectId>::iterator classIter = _syncSlave.begin();
+ while (classIter != _syncSlave.end()) {
+ ObjectId::iterator objIter = classIter->begin();
+ while (objIter != classIter->end()) {
+ SyncableObject* obj = objIter.value();
+ objIter = classIter->erase(objIter);
+ obj->stopSynchronize(this);
+ }
+ ++classIter;
}
- }
- _sync = sync;
-}
-
-bool SignalRelay::isSyncMethod(int i) {
- SyncableObject *syncObject = qobject_cast<SyncableObject *>(caller);
- if(!syncObject)
- return false;
-
- QByteArray signature = syncObject->syncMetaObject()->method(i).signature();
- if(!proxy->syncMap(syncObject).contains(signature))
- return false;
+ _syncSlave.clear();
- if(proxy->proxyMode() == SignalProxy::Server && !signature.contains("Requested"))
- return true;
-
- if(proxy->proxyMode() == SignalProxy::Client && signature.contains("Requested"))
- return true;
-
- return false;
-}
-
-bool SignalRelay::synchronize() const {
- return _sync;
-}
+ removeAllPeers();
-int SignalRelay::sigCount() const {
- // only for debuging purpose
- return sigNames.count();
-}
+ // Ensure that we don't try to clean up while destroying ourselves
+ disconnect(this, &QObject::destroyed, this, &SignalProxy::detachSlotObjects);
-void SignalRelay::attachSignal(int methodId, const QByteArray &func) {
- // we ride without safetybelts here... all checking for valid method etc pp has to be done by the caller
- // all connected methodIds are offset by the standard methodCount of QObject
- if(!sigNames.contains(methodId))
- QMetaObject::connect(caller, methodId, this, QObject::staticMetaObject.methodCount() + methodId);
-
- QByteArray fn;
- if(!func.isEmpty()) {
- fn = QMetaObject::normalizedSignature(func);
- } else {
- fn = QByteArray("2") + caller->metaObject()->method(methodId).signature();
- }
- sigNames.insert(methodId, fn);
+ _current = nullptr;
}
-// ==================================================
-// Peers
-// ==================================================
-void SignalProxy::IODevicePeer::dispatchSignal(const RequestType &requestType, const QVariantList ¶ms) {
- QVariantList packedFunc;
- packedFunc << (qint16)requestType
- << params;
- dispatchPackedFunc(QVariant(packedFunc));
+SignalProxy* SignalProxy::current()
+{
+ return _current;
}
-bool SignalProxy::IODevicePeer::isSecure() const {
- QSslSocket *sslSocket = qobject_cast<QSslSocket *>(_device);
- if(sslSocket)
- return sslSocket->isEncrypted() || sslSocket->localAddress() == QHostAddress::LocalHost || sslSocket->localAddress() == QHostAddress::LocalHostIPv6;
-
- QAbstractSocket *socket = qobject_cast<QAbstractSocket *>(_device);
- if(socket)
- return socket->localAddress() == QHostAddress::LocalHost || socket->localAddress() == QHostAddress::LocalHostIPv6;
+void SignalProxy::setProxyMode(ProxyMode mode)
+{
+ if (!_peerMap.empty()) {
+ qWarning() << Q_FUNC_INFO << "Cannot change proxy mode while connected";
+ return;
+ }
- return false;
+ _proxyMode = mode;
+ if (mode == Server)
+ initServer();
+ else
+ initClient();
}
-QString SignalProxy::IODevicePeer::address() const {
- QAbstractSocket *socket = qobject_cast<QAbstractSocket *>(_device);
- if(socket)
- return socket->peerAddress().toString();
- else
- return QString();
+void SignalProxy::init()
+{
+ _heartBeatInterval = 0;
+ _maxHeartBeatCount = 0;
+ setHeartBeatInterval(30);
+ setMaxHeartBeatCount(2);
+ _secure = false;
+ _current = this;
+ updateSecureState();
}
-void SignalProxy::SignalProxyPeer::dispatchSignal(const RequestType &requestType, const QVariantList ¶ms) {
- Qt::ConnectionType type = QThread::currentThread() == receiver->thread()
- ? Qt::DirectConnection
- : Qt::QueuedConnection;
-
- if(type == Qt::DirectConnection) {
- receiver->receivePeerSignal(sender, requestType, params);
- } else {
- QCoreApplication::postEvent(receiver, new PeerSignalEvent(sender, requestType, params));
- }
-}
+void SignalProxy::initServer() {}
-// ==================================================
-// SignalProxy
-// ==================================================
-SignalProxy::SignalProxy(QObject* parent)
- : QObject(parent)
+void SignalProxy::initClient()
{
- setProxyMode(Client);
- init();
+ attachSlot("__objectRenamed__", this, &SignalProxy::objectRenamed);
}
-SignalProxy::SignalProxy(ProxyMode mode, QObject* parent)
- : QObject(parent)
+void SignalProxy::setHeartBeatInterval(int secs)
{
- setProxyMode(mode);
- init();
+ if (_heartBeatInterval != secs) {
+ _heartBeatInterval = secs;
+ emit heartBeatIntervalChanged(secs);
+ }
}
-SignalProxy::SignalProxy(ProxyMode mode, QIODevice* device, QObject* parent)
- : QObject(parent)
+void SignalProxy::setMaxHeartBeatCount(int max)
{
- setProxyMode(mode);
- addPeer(device);
- init();
-}
-
-SignalProxy::~SignalProxy() {
- QList<QObject*> senders = _relayHash.keys();
- foreach(QObject* sender, senders)
- detachObject(sender);
- removeAllPeers();
-}
-
-void SignalProxy::setProxyMode(ProxyMode mode) {
- PeerHash::iterator peer = _peers.begin();
- while(peer != _peers.end()) {
- if((*peer)->type() != AbstractPeer::IODevicePeer) {
- IODevicePeer *ioPeer = static_cast<IODevicePeer *>(*peer);
- if(ioPeer->isOpen()) {
- qWarning() << "SignalProxy: Cannot change proxy mode while connected";
- return;
- }
- }
- if((*peer)->type() != AbstractPeer::SignalProxyPeer) {
- qWarning() << "SignalProxy: Cannot change proxy mode while connected to another internal SignalProxy";
- return;
+ if (_maxHeartBeatCount != max) {
+ _maxHeartBeatCount = max;
+ emit maxHeartBeatCountChanged(max);
}
- peer++;
- }
-
- _proxyMode = mode;
- if(mode == Server)
- initServer();
- else
- initClient();
-}
-
-void SignalProxy::init() {
- connect(&_heartBeatTimer, SIGNAL(timeout()), this, SLOT(sendHeartBeat()));
- _heartBeatTimer.start(30 * 1000);
- _secure = false;
- updateSecureState();
-}
-
-void SignalProxy::initServer() {
-}
-
-void SignalProxy::initClient() {
- attachSlot("__objectRenamed__", this, SLOT(objectRenamed(QByteArray, QString, QString)));
}
-bool SignalProxy::addPeer(QIODevice* iodev) {
- if(!iodev)
- return false;
-
- if(_peers.contains(iodev))
- return true;
-
- if(proxyMode() == Client && !_peers.isEmpty()) {
- qWarning("SignalProxy: only one peer allowed in client mode!");
- return false;
- }
+bool SignalProxy::addPeer(Peer* peer)
+{
+ if (!peer)
+ return false;
- if(!iodev->isOpen()) {
- qWarning("SignalProxy::addPeer(QIODevice *iodev): iodev needs to be open!");
- return false;
- }
+ if (_peerMap.values().contains(peer))
+ return true;
- connect(iodev, SIGNAL(disconnected()), this, SLOT(removePeerBySender()));
- connect(iodev, SIGNAL(readyRead()), this, SLOT(dataAvailable()));
+ if (!peer->isOpen()) {
+ qWarning("SignalProxy: peer needs to be open!");
+ return false;
+ }
- QSslSocket *sslSocket = qobject_cast<QSslSocket *>(iodev);
- if(sslSocket) {
- connect(iodev, SIGNAL(encrypted()), this, SLOT(updateSecureState()));
- }
+ if (proxyMode() == Client) {
+ if (!_peerMap.isEmpty()) {
+ qWarning("SignalProxy: only one peer allowed in client mode!");
+ return false;
+ }
+ connect(peer, &Peer::lagUpdated, this, &SignalProxy::lagUpdated);
+ }
- if(!iodev->parent())
- iodev->setParent(this);
+ connect(peer, &Peer::disconnected, this, &SignalProxy::removePeerBySender);
+ connect(peer, &Peer::secureStateChanged, this, &SignalProxy::updateSecureState);
- _peers[iodev] = new IODevicePeer(iodev, iodev->property("UseCompression").toBool());
+ if (!peer->parent())
+ peer->setParent(this);
- if(_peers.count() == 1)
- emit connected();
+ if (peer->id() < 0) {
+ peer->setId(nextPeerId());
+ peer->setConnectedSince(QDateTime::currentDateTimeUtc());
+ }
- updateSecureState();
- return true;
-}
+ _peerMap[peer->id()] = peer;
-bool SignalProxy::addPeer(SignalProxy* proxy) {
- if(!proxy)
- return false;
+ peer->setSignalProxy(this);
- if(proxyMode() == proxy->proxyMode()) {
- qWarning() << "SignalProxy::addPeer(): adding a SignalProxy as peer requires one proxy to be server and one client!";
- return false;
- }
+ if (peerCount() == 1)
+ emit connected();
- if(_peers.contains(proxy)) {
+ updateSecureState();
return true;
- }
-
- if(proxyMode() == Client && !_peers.isEmpty()) {
- qWarning("SignalProxy: only one peer allowed in client mode!");
- return false;
- }
-
- _peers[proxy] = new SignalProxyPeer(this, proxy);
- proxy->addPeer(this);
-
- if(_peers.count() == 1)
- emit connected();
-
- updateSecureState();
- return true;
}
-void SignalProxy::removeAllPeers() {
- Q_ASSERT(proxyMode() == Server || _peers.count() <= 1);
- // wee need to copy that list since we modify it in the loop
- QList<QObject *> peers = _peers.keys();
- foreach(QObject *peer, peers) {
- removePeer(peer);
- }
+void SignalProxy::removeAllPeers()
+{
+ Q_ASSERT(proxyMode() == Server || peerCount() <= 1);
+ // wee need to copy that list since we modify it in the loop
+ QList<Peer*> peers = _peerMap.values();
+ for (auto peer : peers) {
+ removePeer(peer);
+ }
}
-void SignalProxy::removePeer(QObject* dev) {
- if(_peers.isEmpty()) {
- qWarning() << "SignalProxy::removePeer(): No peers in use!";
- return;
- }
-
- Q_ASSERT(dev);
- if(!_peers.contains(dev)) {
- qWarning() << "SignalProxy: unknown Peer" << dev;
- return;
- }
+void SignalProxy::removePeer(Peer* peer)
+{
+ if (!peer) {
+ qWarning() << Q_FUNC_INFO << "Trying to remove a null peer!";
+ return;
+ }
- AbstractPeer *peer = _peers[dev];
- _peers.remove(dev);
+ if (_peerMap.isEmpty()) {
+ qWarning() << "SignalProxy::removePeer(): No peers in use!";
+ return;
+ }
- disconnect(dev, 0, this, 0);
- if(peer->type() == AbstractPeer::IODevicePeer)
- emit peerRemoved(static_cast<QIODevice *>(dev));
+ if (!_peerMap.values().contains(peer)) {
+ qWarning() << "SignalProxy: unknown Peer" << peer;
+ return;
+ }
- if(peer->type() == AbstractPeer::SignalProxyPeer) {
- SignalProxy *proxy = static_cast<SignalProxy *>(dev);
- if(proxy->_peers.contains(this))
- proxy->removePeer(this);
- }
+ disconnect(peer, nullptr, this, nullptr);
+ peer->setSignalProxy(nullptr);
- if(dev->parent() == this)
- dev->deleteLater();
+ _peerMap.remove(peer->id());
+ emit peerRemoved(peer);
- delete peer;
+ if (peer->parent() == this)
+ peer->deleteLater();
- updateSecureState();
+ updateSecureState();
- if(_peers.isEmpty())
- emit disconnected();
+ if (_peerMap.isEmpty())
+ emit disconnected();
}
-void SignalProxy::removePeerBySender() {
- removePeer(sender());
+void SignalProxy::removePeerBySender()
+{
+ removePeer(qobject_cast<Peer*>(sender()));
}
-void SignalProxy::objectRenamed(const QString &newname, const QString &oldname) {
- SyncableObject *syncObject = qobject_cast<SyncableObject *>(sender());
- const QMetaObject *meta = syncObject->syncMetaObject();
- const QByteArray className(meta->className());
- objectRenamed(className, newname, oldname);
-
- if(proxyMode() == Client)
- return;
+void SignalProxy::renameObject(const SyncableObject* obj, const QString& newname, const QString& oldname)
+{
+ if (proxyMode() == Client)
+ return;
- QVariantList params;
- params << "__objectRenamed__" << className << newname << oldname;
- dispatchSignal(RpcCall, params);
-}
+ const QMetaObject* meta = obj->syncMetaObject();
+ const QByteArray className(meta->className());
+ objectRenamed(className, newname, oldname);
-void SignalProxy::objectRenamed(const QByteArray &classname, const QString &newname, const QString &oldname) {
- if(_syncSlave.contains(classname) && _syncSlave[classname].contains(oldname) && oldname != newname) {
- SyncableObject *obj = _syncSlave[classname][newname] = _syncSlave[classname].take(oldname);
- requestInit(obj);
- }
+ dispatch(RpcCall("__objectRenamed__", QVariantList() << className << newname << oldname));
}
-void SignalProxy::setArgTypes(QObject* obj, int methodId) {
- const QMetaObject *meta = metaObject(obj);
- QList<QByteArray> p = meta->method(methodId).parameterTypes();
- QList<int> argTypes;
- int ct = p.count();
- for(int i=0; i<ct; i++)
- argTypes.append(QMetaType::type(p.value(i)));
-
- Q_ASSERT(!_classInfo[meta]->argTypes.contains(methodId));
- _classInfo[meta]->argTypes[methodId] = argTypes;
+void SignalProxy::objectRenamed(const QByteArray& classname, const QString& newname, const QString& oldname)
+{
+ if (newname != oldname) {
+ if (_syncSlave.contains(classname) && _syncSlave[classname].contains(oldname)) {
+ SyncableObject* obj = _syncSlave[classname][newname] = _syncSlave[classname].take(oldname);
+ obj->setObjectName(newname);
+ requestInit(obj);
+ }
+ }
}
-const QList<int> &SignalProxy::argTypes(QObject *obj, int methodId) {
- const QMetaObject *meta = metaObject(obj);
- Q_ASSERT(_classInfo.contains(meta));
- if(!_classInfo[meta]->argTypes.contains(methodId))
- setArgTypes(obj, methodId);
- return _classInfo[meta]->argTypes[methodId];
+const QMetaObject* SignalProxy::metaObject(const QObject* obj)
+{
+ if (const auto* syncObject = qobject_cast<const SyncableObject*>(obj))
+ return syncObject->syncMetaObject();
+ else
+ return obj->metaObject();
}
-void SignalProxy::setReturnType(QObject *obj, int methodId) {
- const QMetaObject *meta = metaObject(obj);
- int returnType = QMetaType::type(meta->method(methodId).typeName());
-
- Q_ASSERT(!_classInfo[meta]->returnType.contains(methodId));
- _classInfo[meta]->returnType[methodId] = returnType;
+SignalProxy::ExtendedMetaObject* SignalProxy::extendedMetaObject(const QMetaObject* meta) const
+{
+ if (_extendedMetaObjects.contains(meta))
+ return _extendedMetaObjects[meta];
+ else
+ return nullptr;
}
-const int &SignalProxy::returnType(QObject *obj, int methodId) {
- const QMetaObject *meta = metaObject(obj);
- Q_ASSERT(_classInfo.contains(meta));
- if(!_classInfo[meta]->returnType.contains(methodId))
- setReturnType(obj, methodId);
- return _classInfo[meta]->returnType[methodId];
+SignalProxy::ExtendedMetaObject* SignalProxy::createExtendedMetaObject(const QMetaObject* meta, bool checkConflicts)
+{
+ if (!_extendedMetaObjects.contains(meta)) {
+ _extendedMetaObjects[meta] = new ExtendedMetaObject(meta, checkConflicts);
+ }
+ return _extendedMetaObjects[meta];
}
-void SignalProxy::setMinArgCount(QObject *obj, int methodId) {
- const QMetaObject *meta = metaObject(obj);
- QString signature(meta->method(methodId).signature());
- int minCount = meta->method(methodId).parameterTypes().count() - signature.count("=");
- Q_ASSERT(!_classInfo[meta]->minArgCount.contains(methodId));
- _classInfo[meta]->minArgCount[methodId] = minCount;
-}
+void SignalProxy::attachSlotObject(const QByteArray& signalName, std::unique_ptr<SlotObjectBase> slotObject)
+{
+ // Remove all attached slots related to the context upon its destruction
+ connect(slotObject->context(), &QObject::destroyed, this, &SignalProxy::detachSlotObjects, Qt::UniqueConnection);
-const int &SignalProxy::minArgCount(QObject *obj, int methodId) {
- const QMetaObject *meta = metaObject(obj);
- Q_ASSERT(_classInfo.contains(meta));
- if(!_classInfo[meta]->minArgCount.contains(methodId))
- setMinArgCount(obj, methodId);
- return _classInfo[meta]->minArgCount[methodId];
+ _attachedSlots.emplace(QMetaObject::normalizedSignature(signalName.constData()), std::move(slotObject));
}
-void SignalProxy::setMethodName(QObject *obj, int methodId) {
- const QMetaObject *meta = metaObject(obj);
- QByteArray method(::methodName(meta->method(methodId)));
- Q_ASSERT(!_classInfo[meta]->methodNames.contains(methodId));
- _classInfo[meta]->methodNames[methodId] = method;
+void SignalProxy::detachSlotObjects(const QObject *context)
+{
+ for (auto&& it = _attachedSlots.begin(); it != _attachedSlots.end(); ) {
+ if (it->second->context() == context) {
+ it = _attachedSlots.erase(it);
+ }
+ else {
+ ++it;
+ }
+ }
}
-const QByteArray &SignalProxy::methodName(QObject *obj, int methodId) {
- const QMetaObject *meta = metaObject(obj);
- Q_ASSERT(_classInfo.contains(meta));
- if(!_classInfo[meta]->methodNames.contains(methodId))
- setMethodName(obj, methodId);
- return _classInfo[meta]->methodNames[methodId];
-}
+void SignalProxy::synchronize(SyncableObject* obj)
+{
+ createExtendedMetaObject(obj, true);
+ // attaching as slave to receive sync Calls
+ QByteArray className(obj->syncMetaObject()->className());
+ _syncSlave[className][obj->objectName()] = obj;
-void SignalProxy::setSyncMap(SyncableObject *obj) {
- const QMetaObject *meta = obj->syncMetaObject();
- QHash<QByteArray, int> syncMap;
-
- QList<int> slotIndexes;
- for(int i = 0; i < meta->methodCount(); i++) {
- if(meta->method(i).methodType() == QMetaMethod::Slot)
- slotIndexes << i;
- }
-
- // we're faking sync pairs for sync replies
- QByteArray slotSignature;
- foreach(int slotIdx, slotIndexes) {
- slotSignature = QByteArray(meta->method(slotIdx).signature());
- if(!slotSignature.startsWith("receive"))
- continue;
- syncMap[slotSignature] = slotIdx;
- }
-
- QMetaMethod signal, slot;
- int matchIdx;
- for(int signalIdx = 0; signalIdx < meta->methodCount(); signalIdx++) {
- signal = meta->method(signalIdx);
- if(signal.methodType() != QMetaMethod::Signal)
- continue;
-
- matchIdx = -1;
- foreach(int slotIdx, slotIndexes) {
- slot = meta->method(slotIdx);
- if(methodsMatch(signal, slot)) {
- matchIdx = slotIdx;
- break;
- }
+ if (proxyMode() == Server) {
+ obj->setInitialized();
+ emit objectInitialized(obj);
}
- if(matchIdx != -1) {
- slotIndexes.removeAt(slotIndexes.indexOf(matchIdx));
- syncMap[QByteArray(signal.signature())] = matchIdx;
+ else {
+ if (obj->isInitialized())
+ emit objectInitialized(obj);
+ else
+ requestInit(obj);
}
- }
- Q_ASSERT(_classInfo[meta]->syncMap.isEmpty());
- _classInfo[meta]->syncMap = syncMap;
+ obj->synchronize(this);
}
-const QHash<QByteArray,int> &SignalProxy::syncMap(SyncableObject *obj) {
- const QMetaObject *meta = obj->syncMetaObject();
- Q_ASSERT(_classInfo.contains(meta));
- if(_classInfo[meta]->syncMap.isEmpty())
- setSyncMap(obj);
- return _classInfo[meta]->syncMap;
-}
-
-void SignalProxy::setReceiveMap(SyncableObject *obj) {
- const QMetaObject *meta = obj->syncMetaObject();
- Q_ASSERT(_classInfo.contains(meta));
-
- QHash<int, int> receiveMap;
-
- QMetaMethod requestSlot;
- QByteArray returnTypeName;
- QByteArray signature;
- QByteArray methodName;
- QByteArray params;
- int paramsPos;
- int receiverId;
- const int methodCount = meta->methodCount();
- for(int i = 0; i < methodCount; i++) {
- requestSlot = meta->method(i);
- if(requestSlot.methodType() != QMetaMethod::Slot)
- continue;
-
- returnTypeName = requestSlot.typeName();
- if(QMetaType::Void == (QMetaType::Type)returnType(obj, i))
- continue;
-
- signature = QByteArray(requestSlot.signature());
- if(!signature.startsWith("request"))
- continue;
-
- paramsPos = signature.indexOf('(');
- if(paramsPos == -1)
- continue;
-
- methodName = signature.left(paramsPos);
- params = signature.mid(paramsPos);
-
- methodName = methodName.replace("request", "receive");
- params = params.left(params.count() - 1) + ", " + returnTypeName + ")";
-
- signature = QMetaObject::normalizedSignature(methodName + params);
- receiverId = meta->indexOfSlot(signature);
-
- if(receiverId == -1) {
- signature = QMetaObject::normalizedSignature(methodName + "(" + returnTypeName + ")");
- receiverId = meta->indexOfSlot(signature);
+void SignalProxy::stopSynchronize(SyncableObject* obj)
+{
+ // we can't use a className here, since it might be effed up, if we receive the call as a result of a decon
+ // gladly the objectName() is still valid. So we have only to iterate over the classes not each instance! *sigh*
+ QHash<QByteArray, ObjectId>::iterator classIter = _syncSlave.begin();
+ while (classIter != _syncSlave.end()) {
+ if (classIter->contains(obj->objectName()) && classIter.value()[obj->objectName()] == obj) {
+ classIter->remove(obj->objectName());
+ break;
+ }
+ ++classIter;
}
-
- if(receiverId != -1)
- receiveMap[i] = receiverId;
- }
- _classInfo[meta]->receiveMap = receiveMap;
-}
-
-const QHash<int, int> &SignalProxy::receiveMap(SyncableObject *obj) {
- const QMetaObject *meta = obj->syncMetaObject();
- Q_ASSERT(_classInfo.contains(meta));
- if(_classInfo[meta]->receiveMap.isEmpty())
- setReceiveMap(obj);
- return _classInfo[meta]->receiveMap;
+ obj->stopSynchronize(this);
}
-void SignalProxy::setUpdatedRemotelyId(SyncableObject *obj) {
- const QMetaObject *meta = obj->syncMetaObject();
- Q_ASSERT(_classInfo.contains(meta));
- _classInfo[meta]->updatedRemotelyId = meta->indexOfSignal("updatedRemotely()");
-}
-
-int SignalProxy::updatedRemotelyId(SyncableObject *obj) {
- Q_ASSERT(_classInfo.contains(obj->syncMetaObject()));
- return _classInfo[obj->syncMetaObject()]->updatedRemotelyId;
-}
-
-const QMetaObject *SignalProxy::metaObject(QObject *obj) {
- if(SyncableObject *syncObject = qobject_cast<SyncableObject *>(obj))
- return syncObject->syncMetaObject();
- else
- return obj->metaObject();
+void SignalProxy::dispatchSignal(QByteArray sigName, QVariantList params)
+{
+ RpcCall rpcCall{std::move(sigName), std::move(params)};
+ if (_restrictMessageTarget) {
+ for (auto&& peer : _restrictedTargets) {
+ dispatch(peer, rpcCall);
+ }
+ }
+ else {
+ dispatch(rpcCall);
+ }
}
-void SignalProxy::createClassInfo(QObject *obj) {
- const QMetaObject *meta = metaObject(obj);
- if(_classInfo.contains(meta))
- return;
-
- ClassInfo *classInfo = new ClassInfo();
- _classInfo[meta] = classInfo;
+template<class T>
+void SignalProxy::dispatch(const T& protoMessage)
+{
+ for (auto&& peer : _peerMap.values()) {
+ dispatch(peer, protoMessage);
+ }
}
-bool SignalProxy::attachSignal(QObject* sender, const char* signal, const QByteArray& sigName) {
- const QMetaObject* meta = metaObject(sender);
- QByteArray sig(meta->normalizedSignature(signal).mid(1));
- int methodId = meta->indexOfMethod(sig.constData());
- if(methodId == -1 || meta->method(methodId).methodType() != QMetaMethod::Signal) {
- qWarning() << "SignalProxy::attachSignal(): No such signal" << signal;
- return false;
- }
-
- createClassInfo(sender);
-
- SignalRelay* relay;
- if(_relayHash.contains(sender))
- relay = _relayHash[sender];
- else
- relay = _relayHash[sender] = new SignalRelay(this, sender);
+template<class T>
+void SignalProxy::dispatch(Peer* peer, const T& protoMessage)
+{
+ _targetPeer = peer;
- relay->attachSignal(methodId, sigName);
+ if (peer && peer->isOpen())
+ peer->dispatch(protoMessage);
+ else
+ QCoreApplication::postEvent(this, new ::RemovePeerEvent(peer));
- return true;
+ _targetPeer = nullptr;
}
+void SignalProxy::handle(Peer* peer, const SyncMessage& syncMessage)
+{
+ if (!_syncSlave.contains(syncMessage.className) || !_syncSlave[syncMessage.className].contains(syncMessage.objectName)) {
+ qWarning() << QString("no registered receiver for sync call: %1::%2 (objectName=\"%3\"). Params are:")
+ .arg(syncMessage.className, syncMessage.slotName, syncMessage.objectName)
+ << syncMessage.params;
+ return;
+ }
-bool SignalProxy::attachSlot(const QByteArray& sigName, QObject* recv, const char* slot) {
- const QMetaObject* meta = recv->metaObject();
- int methodId = meta->indexOfMethod(meta->normalizedSignature(slot).mid(1));
- if(methodId == -1 || meta->method(methodId).methodType() == QMetaMethod::Method) {
- qWarning() << "SignalProxy::attachSlot(): No such slot" << slot;
- return false;
- }
-
- createClassInfo(recv);
-
- QByteArray funcName = QMetaObject::normalizedSignature(sigName.constData());
- _attachedSlots.insert(funcName, qMakePair(recv, methodId));
-
- QObject::disconnect(recv, SIGNAL(destroyed()), this, SLOT(detachSender()));
- QObject::connect(recv, SIGNAL(destroyed()), this, SLOT(detachSender()));
- return true;
-}
+ SyncableObject* receiver = _syncSlave[syncMessage.className][syncMessage.objectName];
+ ExtendedMetaObject* eMeta = extendedMetaObject(receiver);
+ if (!eMeta->slotMap().contains(syncMessage.slotName)) {
+ qWarning() << QString("no matching slot for sync call: %1::%2 (objectName=\"%3\"). Params are:")
+ .arg(syncMessage.className, syncMessage.slotName, syncMessage.objectName)
+ << syncMessage.params;
+ return;
+ }
-void SignalProxy::synchronize(SyncableObject *obj) {
- createClassInfo(obj);
- setUpdatedRemotelyId(obj);
+ int slotId = eMeta->slotMap()[syncMessage.slotName];
+ if (proxyMode() != eMeta->receiverMode(slotId)) {
+ qWarning("SignalProxy::handleSync(): invokeMethod for \"%s\" failed. Wrong ProxyMode!", eMeta->methodName(slotId).constData());
+ return;
+ }
- // attaching all the Signals
- SignalRelay* relay;
- if(_relayHash.contains(obj))
- relay = _relayHash[obj];
- else
- relay = _relayHash[obj] = new SignalRelay(this, obj);
+ // We can no longer construct a QVariant from QMetaType::Void
+ QVariant returnValue;
+ int returnType = eMeta->returnType(slotId);
+ if (returnType != QMetaType::Void)
+ returnValue = QVariant(static_cast<QVariant::Type>(returnType));
- relay->setSynchronize(true);
+ if (!invokeSlot(receiver, slotId, syncMessage.params, returnValue, peer)) {
+ qWarning("SignalProxy::handleSync(): invokeMethod for \"%s\" failed ", eMeta->methodName(slotId).constData());
+ return;
+ }
- // attaching as slave to receive sync Calls
- QByteArray className(obj->syncMetaObject()->className());
- _syncSlave[className][obj->objectName()] = obj;
+ if (returnValue.type() != QVariant::Invalid && eMeta->receiveMap().contains(slotId)) {
+ int receiverId = eMeta->receiveMap()[slotId];
+ QVariantList returnParams;
+ if (eMeta->argTypes(receiverId).count() > 1)
+ returnParams << syncMessage.params;
+ returnParams << returnValue;
+ _targetPeer = peer;
+ peer->dispatch(SyncMessage(syncMessage.className, syncMessage.objectName, eMeta->methodName(receiverId), returnParams));
+ _targetPeer = nullptr;
+ }
- if(proxyMode() == Server) {
- connect(obj, SIGNAL(objectRenamed(QString, QString)), this, SLOT(objectRenamed(QString, QString)));
- obj->setInitialized();
- emit objectInitialized(obj);
- } else {
- if(obj->isInitialized())
- emit objectInitialized(obj);
- else
- requestInit(obj);
- }
+ // send emit update signal
+ invokeSlot(receiver, eMeta->updatedRemotelyId());
}
-void SignalProxy::requestInit(SyncableObject *obj) {
- if(proxyMode() == Server || obj->isInitialized())
- return;
+void SignalProxy::handle(Peer* peer, const RpcCall& rpcCall)
+{
+ Q_UNUSED(peer)
- QVariantList params;
- params << obj->syncMetaObject()->className()
- << obj->objectName();
- dispatchSignal(InitRequest, params);
+ auto range = _attachedSlots.equal_range(rpcCall.signalName);
+ std::for_each(range.first, range.second, [&rpcCall](const auto& p) {
+ if (!p.second->invoke(rpcCall.params)) {
+ qWarning() << "Could not invoke slot for remote signal" << rpcCall.signalName;
+ }
+ });
}
-void SignalProxy::detachSender() {
- detachObject(sender());
-}
+void SignalProxy::handle(Peer* peer, const InitRequest& initRequest)
+{
+ if (!_syncSlave.contains(initRequest.className)) {
+ qWarning() << "SignalProxy::handleInitRequest() received initRequest for unregistered Class:" << initRequest.className;
+ return;
+ }
-void SignalProxy::detachObject(QObject* obj) {
- stopSync(static_cast<SyncableObject *>(obj));
- detachSignals(obj);
- detachSlots(obj);
-}
+ if (!_syncSlave[initRequest.className].contains(initRequest.objectName)) {
+ qWarning() << "SignalProxy::handleInitRequest() received initRequest for unregistered Object:" << initRequest.className
+ << initRequest.objectName;
+ return;
+ }
-void SignalProxy::detachSignals(QObject* sender) {
- if(!_relayHash.contains(sender))
- return;
- _relayHash.take(sender)->deleteLater();
+ SyncableObject* obj = _syncSlave[initRequest.className][initRequest.objectName];
+ _targetPeer = peer;
+ peer->dispatch(InitData(initRequest.className, initRequest.objectName, initData(obj)));
+ _targetPeer = nullptr;
}
-void SignalProxy::detachSlots(QObject* receiver) {
- SlotHash::iterator slotIter = _attachedSlots.begin();
- while(slotIter != _attachedSlots.end()) {
- if(slotIter.value().first == receiver) {
- slotIter = _attachedSlots.erase(slotIter);
- } else
- slotIter++;
- }
-}
+void SignalProxy::handle(Peer* peer, const InitData& initData)
+{
+ Q_UNUSED(peer)
-void SignalProxy::stopSync(SyncableObject* obj) {
- if(_relayHash.contains(obj))
- _relayHash[obj]->setSynchronize(false);
-
- // we can't use a className here, since it might be effed up, if we receive the call as a result of a decon
- // gladly the objectName() is still valid. So we have only to iterate over the classes not each instance! *sigh*
- QHash<QByteArray, ObjectId>::iterator classIter = _syncSlave.begin();
- while(classIter != _syncSlave.end()) {
- if(classIter->contains(obj->objectName()) && classIter.value()[obj->objectName()] == obj) {
- classIter->remove(obj->objectName());
- break;
+ if (!_syncSlave.contains(initData.className)) {
+ qWarning() << "SignalProxy::handleInitData() received initData for unregistered Class:" << initData.className;
+ return;
}
- classIter++;
- }
-}
-void SignalProxy::dispatchSignal(const RequestType &requestType, const QVariantList ¶ms) {
- QVariant packedFunc(QVariantList() << (qint16)requestType << params);
- PeerHash::iterator peer = _peers.begin();
- while(peer != _peers.end()) {
- switch((*peer)->type()) {
- case AbstractPeer::IODevicePeer:
- {
- IODevicePeer *ioPeer = static_cast<IODevicePeer *>(*peer);
- if(ioPeer->isOpen())
- ioPeer->dispatchPackedFunc(packedFunc);
- else
- QCoreApplication::postEvent(this, new RemovePeerEvent(peer.key()));
- }
- break;
- case AbstractPeer::SignalProxyPeer:
- (*peer)->dispatchSignal(requestType, params);
- break;
- default:
- Q_ASSERT(false); // there shouldn't be any peers with wrong / unknown type
+ if (!_syncSlave[initData.className].contains(initData.objectName)) {
+ qWarning() << "SignalProxy::handleInitData() received initData for unregistered Object:" << initData.className << initData.objectName;
+ return;
}
- peer++;
- }
-}
-void SignalProxy::receivePackedFunc(AbstractPeer *sender, const QVariant &packedFunc) {
- QVariantList params(packedFunc.toList());
-
- if(params.isEmpty()) {
- qWarning() << "SignalProxy::receivePeerSignal(): received incompatible Data:" << packedFunc;
- return;
- }
-
- RequestType requestType = (RequestType)params.takeFirst().value<int>();
- receivePeerSignal(sender, requestType, params);
+ SyncableObject* obj = _syncSlave[initData.className][initData.objectName];
+ setInitData(obj, initData.initData);
}
-void SignalProxy::receivePeerSignal(AbstractPeer *sender, const RequestType &requestType, const QVariantList ¶ms) {
- switch(requestType) {
- case RpcCall:
- if(params.empty())
- qWarning() << "SignalProxy::receivePeerSignal(): received empty RPC-Call";
- else
- handleSignal(params);
- //handleSignal(params.takeFirst().toByteArray(), params);
- break;
-
- case Sync:
- handleSync(sender, params);
- break;
-
- case InitRequest:
- handleInitRequest(sender, params);
- break;
+bool SignalProxy::invokeSlot(QObject* receiver, int methodId, const QVariantList& params, QVariant& returnValue, Peer* peer)
+{
+ ExtendedMetaObject* eMeta = extendedMetaObject(receiver);
+ const QList<int> args = eMeta->argTypes(methodId);
+ const int numArgs = params.count() < args.count() ? params.count() : args.count();
- case InitData:
- handleInitData(sender, params);
- break;
+ if (eMeta->minArgCount(methodId) > params.count()) {
+ qWarning() << "SignalProxy::invokeSlot(): not enough params to invoke" << eMeta->methodName(methodId);
+ return false;
+ }
- case HeartBeat:
- receiveHeartBeat(sender, params);
- break;
+ void* _a[] = {nullptr, // return type...
+ nullptr,
+ nullptr,
+ nullptr,
+ nullptr,
+ nullptr, // and 10 args - that's the max size qt can handle with signals and slots
+ nullptr,
+ nullptr,
+ nullptr,
+ nullptr,
+ nullptr};
+
+ // check for argument compatibility and build params array
+ for (int i = 0; i < numArgs; i++) {
+ if (!params[i].isValid()) {
+ qWarning() << "SignalProxy::invokeSlot(): received invalid data for argument number" << i << "of method"
+ << QString("%1::%2()")
+ .arg(receiver->metaObject()->className())
+ .arg(receiver->metaObject()->method(methodId).methodSignature().constData());
+ qWarning() << " - make sure all your data types are known by the Qt MetaSystem";
+ return false;
+ }
+ if (args[i] != QMetaType::type(params[i].typeName())) {
+ qWarning() << "SignalProxy::invokeSlot(): incompatible param types to invoke" << eMeta->methodName(methodId);
+ return false;
+ }
+
+ _a[i + 1] = const_cast<void*>(params[i].constData());
+ }
- case HeartBeatReply:
- receiveHeartBeatReply(sender, params);
- break;
+ if (returnValue.type() != QVariant::Invalid)
+ _a[0] = const_cast<void*>(returnValue.constData());
- default:
- qWarning() << "SignalProxy::receivePeerSignal(): received undefined CallType" << requestType << params;
- }
-}
+ Qt::ConnectionType type = QThread::currentThread() == receiver->thread() ? Qt::DirectConnection : Qt::QueuedConnection;
-void SignalProxy::receivePeerSignal(SignalProxy *sender, const RequestType &requestType, const QVariantList ¶ms) {
- if(!_peers.contains(sender)) {
- // we output only the pointer value. otherwise Qt would try to pretty print. As the object might already been destroyed, this is not a good idea.
- qWarning() << "SignalProxy::receivePeerSignal(): received Signal from unknown Proxy" << reinterpret_cast<void *>(sender);
- return;
- }
- receivePeerSignal(_peers[sender], requestType, params);
+ if (type == Qt::DirectConnection) {
+ _sourcePeer = peer;
+ auto result = receiver->qt_metacall(QMetaObject::InvokeMetaMethod, methodId, _a) < 0;
+ _sourcePeer = nullptr;
+ return result;
+ }
+ else {
+ qWarning() << "Queued Connections are not implemented yet";
+ // note to self: qmetaobject.cpp:990 ff
+ return false;
+ }
}
-void SignalProxy::handleSync(AbstractPeer *sender, QVariantList params) {
- if(params.count() < 3) {
- qWarning() << "received invalid Sync call" << params;
- return;
- }
-
- QByteArray className = params.takeFirst().toByteArray();
- QString objectName = params.takeFirst().toString();
- QByteArray signal = params.takeFirst().toByteArray();
-
- if(!_syncSlave.contains(className) || !_syncSlave[className].contains(objectName)) {
- qWarning() << QString("no registered receiver for sync call: %1::%2 (objectName=\"%3\"). Params are:").arg(QString(className)).arg(QString(signal)).arg(objectName)
- << params;
- return;
- }
-
- SyncableObject *receiver = _syncSlave[className][objectName];
- if(!syncMap(receiver).contains(signal)) {
- qWarning() << QString("no matching slot for sync call: %1::%2 (objectName=\"%3\"). Params are:").arg(QString(className)).arg(QString(signal)).arg(objectName)
- << params;
- return;
- }
-
- int slotId = syncMap(receiver)[signal];
-
- QVariant returnValue((QVariant::Type)returnType(receiver, slotId));
- if(!invokeSlot(receiver, slotId, params, returnValue)) {
- qWarning("SignalProxy::handleSync(): invokeMethod for \"%s\" failed ", methodName(receiver, slotId).constData());
- return;
- }
-
- if(returnValue.type() != QVariant::Invalid && receiveMap(receiver).contains(slotId)) {
- int receiverId = receiveMap(receiver)[slotId];
- QVariantList returnParams;
- returnParams << className
- << objectName
- << QByteArray(receiver->metaObject()->method(receiverId).signature());
- if(argTypes(receiver, receiverId).count() > 1)
- returnParams << params;
- returnParams << returnValue;
- sender->dispatchSignal(Sync, returnParams);
- }
-
- // send emit update signal
- invokeSlot(receiver, updatedRemotelyId(receiver));
+bool SignalProxy::invokeSlot(QObject* receiver, int methodId, const QVariantList& params, Peer* peer)
+{
+ QVariant ret;
+ return invokeSlot(receiver, methodId, params, ret, peer);
}
-void SignalProxy::handleInitRequest(AbstractPeer *sender, const QVariantList ¶ms) {
- if(params.count() != 2) {
- qWarning() << "SignalProxy::handleInitRequest() received initRequest with invalid param Count:"
- << params;
- return;
- }
-
- QByteArray className(params[0].toByteArray());
- QString objectName(params[1].toString());
-
- if(!_syncSlave.contains(className)) {
- qWarning() << "SignalProxy::handleInitRequest() received initRequest for unregistered Class:"
- << className;
- return;
- }
-
- if(!_syncSlave[className].contains(objectName)) {
- qWarning() << "SignalProxy::handleInitRequest() received initRequest for unregistered Object:"
- << className << objectName;
- return;
- }
-
- SyncableObject *obj = _syncSlave[className][objectName];
-
- QVariantList params_;
- params_ << className
- << objectName
- << initData(obj);
+void SignalProxy::requestInit(SyncableObject* obj)
+{
+ if (proxyMode() == Server || obj->isInitialized())
+ return;
- sender->dispatchSignal(InitData, params_);
+ dispatch(InitRequest(obj->syncMetaObject()->className(), obj->objectName()));
}
-void SignalProxy::handleInitData(AbstractPeer *sender, const QVariantList ¶ms) {
- Q_UNUSED(sender)
- if(params.count() != 3) {
- qWarning() << "SignalProxy::handleInitData() received initData with invalid param Count:"
- << params;
- return;
- }
-
- QByteArray className(params[0].toByteArray());
- QString objectName(params[1].toString());
- QVariantMap propertyMap(params[2].toMap());
-
- if(!_syncSlave.contains(className)) {
- qWarning() << "SignalProxy::handleInitData() received initData for unregistered Class:"
- << className;
- return;
- }
-
- if(!_syncSlave[className].contains(objectName)) {
- qWarning() << "SignalProxy::handleInitData() received initData for unregistered Object:"
- << className << objectName;
- return;
- }
-
- SyncableObject *obj = _syncSlave[className][objectName];
- setInitData(obj, propertyMap);
+QVariantMap SignalProxy::initData(SyncableObject* obj) const
+{
+ return obj->toVariantMap();
}
-//void SignalProxy::handleSignal(const QByteArray &funcName, const QVariantList ¶ms) {
-void SignalProxy::handleSignal(const QVariantList &data) {
- QVariantList params = data;
- QByteArray funcName = params.takeFirst().toByteArray();
-
- QObject* receiver;
- int methodId;
- SlotHash::const_iterator slot = _attachedSlots.constFind(funcName);
- while(slot != _attachedSlots.constEnd() && slot.key() == funcName) {
- receiver = (*slot).first;
- methodId = (*slot).second;
- if(!invokeSlot(receiver, methodId, params))
- qWarning("SignalProxy::handleSignal(): invokeMethod for \"%s\" failed ", methodName(receiver, methodId).constData());
- slot++;
- }
+void SignalProxy::setInitData(SyncableObject* obj, const QVariantMap& properties)
+{
+ if (obj->isInitialized())
+ return;
+ obj->fromVariantMap(properties);
+ obj->setInitialized();
+ emit objectInitialized(obj);
+ invokeSlot(obj, extendedMetaObject(obj)->updatedRemotelyId());
}
-bool SignalProxy::invokeSlot(QObject *receiver, int methodId, const QVariantList ¶ms, QVariant &returnValue) {
- const QList<int> args = argTypes(receiver, methodId);
- const int numArgs = params.count() < args.count()
- ? params.count()
- : args.count();
-
- if(minArgCount(receiver, methodId) > params.count()) {
- qWarning() << "SignalProxy::invokeSlot(): not enough params to invoke" << methodName(receiver, methodId);
- return false;
- }
-
- void *_a[] = {0, // return type...
- 0, 0, 0, 0 , 0, // and 10 args - that's the max size qt can handle with signals and slots
- 0, 0, 0, 0 , 0};
-
- // check for argument compatibility and build params array
- for(int i = 0; i < numArgs; i++) {
- if(!params[i].isValid()) {
- qWarning() << "SignalProxy::invokeSlot(): received invalid data for argument number" << i << "of method" << QString("%1::%2()").arg(receiver->metaObject()->className()).arg(receiver->metaObject()->method(methodId).signature());
- qWarning() << " - make sure all your data types are known by the Qt MetaSystem";
- return false;
+void SignalProxy::customEvent(QEvent* event)
+{
+ switch ((int)event->type()) {
+ case RemovePeerEvent: {
+ auto* e = static_cast<::RemovePeerEvent*>(event);
+ removePeer(e->peer);
+ event->accept();
+ break;
}
- if(args[i] != QMetaType::type(params[i].typeName())) {
- qWarning() << "SignalProxy::invokeSlot(): incompatible param types to invoke" << methodName(receiver, methodId);
- return false;
+
+ default:
+ qWarning() << Q_FUNC_INFO << "Received unknown custom event:" << event->type();
+ return;
}
- _a[i+1] = const_cast<void *>(params[i].constData());
- }
+}
- if(returnValue.type() != QVariant::Invalid)
- _a[0] = const_cast<void *>(returnValue.constData());
+void SignalProxy::sync_call__(const SyncableObject* obj, SignalProxy::ProxyMode modeType, const char* funcname, va_list ap)
+{
+ // qDebug() << obj << modeType << "(" << _proxyMode << ")" << funcname;
+ if (modeType != _proxyMode)
+ return;
- Qt::ConnectionType type = QThread::currentThread() == receiver->thread()
- ? Qt::DirectConnection
- : Qt::QueuedConnection;
+ ExtendedMetaObject* eMeta = extendedMetaObject(obj);
- if (type == Qt::DirectConnection) {
- return receiver->qt_metacall(QMetaObject::InvokeMetaMethod, methodId, _a) < 0;
- } else {
- qWarning() << "Queued Connections are not implemented yet";
- // note to self: qmetaobject.cpp:990 ff
- return false;
- }
+ QVariantList params;
-}
+ const QList<int>& argTypes = eMeta->argTypes(eMeta->methodId(QByteArray(funcname)));
-bool SignalProxy::invokeSlot(QObject *receiver, int methodId, const QVariantList ¶ms) {
- QVariant ret;
- return invokeSlot(receiver, methodId, params, ret);
-}
+ for (int i = 0; i < argTypes.size(); i++) {
+ if (argTypes[i] == 0) {
+ qWarning() << Q_FUNC_INFO << "received invalid data for argument number" << i << "of signal"
+ << QString("%1::%2").arg(eMeta->metaObject()->className()).arg(funcname);
+ qWarning() << " - make sure all your data types are known by the Qt MetaSystem";
+ return;
+ }
+ params << QVariant(argTypes[i], va_arg(ap, void*));
+ }
-void SignalProxy::dataAvailable() {
- // yet again. it's a private slot. no need for checks.
- QIODevice* ioDev = qobject_cast<QIODevice* >(sender());
- Q_ASSERT(_peers.contains(ioDev) && _peers[ioDev]->type() == AbstractPeer::IODevicePeer);
- IODevicePeer *peer = static_cast<IODevicePeer *>(_peers[ioDev]);
- QVariant var;
- while(peer->readData(var))
- receivePackedFunc(peer, var);
+ if (_restrictMessageTarget) {
+ for (auto peer : _restrictedTargets) {
+ if (peer != nullptr)
+ dispatch(peer, SyncMessage(eMeta->metaObject()->className(), obj->objectName(), QByteArray(funcname), params));
+ }
+ }
+ else
+ dispatch(SyncMessage(eMeta->metaObject()->className(), obj->objectName(), QByteArray(funcname), params));
}
-void SignalProxy::writeDataToDevice(QIODevice *dev, const QVariant &item, bool compressed) {
- QAbstractSocket* sock = qobject_cast<QAbstractSocket*>(dev);
- if(!dev->isOpen() || (sock && sock->state()!=QAbstractSocket::ConnectedState)) {
- qWarning("SignalProxy: Can't call write on a closed device");
- return;
- }
-
- QByteArray block;
- QDataStream out(&block, QIODevice::WriteOnly);
- out.setVersion(QDataStream::Qt_4_2);
- out << (quint32)0;
+void SignalProxy::disconnectDevice(QIODevice* dev, const QString& reason)
+{
+ if (!reason.isEmpty())
+ qWarning() << qPrintable(reason);
+ auto* sock = qobject_cast<QAbstractSocket*>(dev);
+ if (sock)
+ qWarning() << qPrintable(tr("Disconnecting")) << qPrintable(sock->peerAddress().toString());
+ dev->close();
+}
- if(compressed) {
- QByteArray rawItem;
- QDataStream itemStream(&rawItem, QIODevice::WriteOnly);
+void SignalProxy::dumpProxyStats()
+{
+ QString mode;
+ if (proxyMode() == Server)
+ mode = "Server";
+ else
+ mode = "Client";
- itemStream.setVersion(QDataStream::Qt_4_2);
- itemStream << item;
+ int slaveCount = 0;
+ foreach (ObjectId oid, _syncSlave.values())
+ slaveCount += oid.count();
- rawItem = qCompress(rawItem);
+ qDebug() << this;
+ qDebug() << " Proxy Mode:" << mode;
+ qDebug() << " attached Slots:" << _attachedSlots.size();
+ qDebug() << " number of synced Slaves:" << slaveCount;
+ qDebug() << "number of Classes cached:" << _extendedMetaObjects.count();
+}
- out << rawItem;
- } else {
- out << item;
- }
+void SignalProxy::updateSecureState()
+{
+ bool wasSecure = _secure;
- out.device()->seek(0);
- out << (quint32)(block.size() - sizeof(quint32));
+ _secure = !_peerMap.isEmpty();
+ for (auto peer : _peerMap.values()) {
+ _secure &= peer->isSecure();
+ }
- dev->write(block);
+ if (wasSecure != _secure)
+ emit secureStateChanged(_secure);
}
-bool SignalProxy::readDataFromDevice(QIODevice *dev, quint32 &blockSize, QVariant &item, bool compressed) {
- QDataStream in(dev);
- in.setVersion(QDataStream::Qt_4_2);
-
- if(blockSize == 0) {
- if(dev->bytesAvailable() < (int)sizeof(quint32)) return false;
- in >> blockSize;
- }
-
- if(blockSize > 1 << 22) {
- disconnectDevice(dev, tr("Client tried to send package larger than max package size!"));
- return false;
- }
-
- if(blockSize == 0) {
- disconnectDevice(dev, tr("Client tried to send 0 byte package!"));
- return false;
- }
-
- if(dev->bytesAvailable() < blockSize)
- return false;
-
- blockSize = 0;
-
- if(compressed) {
- QByteArray rawItem;
- in >> rawItem;
-
- int nbytes = rawItem.size();
- if(nbytes <= 4) {
- const char *data = rawItem.constData();
- if(nbytes < 4 || (data[0]!=0 || data[1]!=0 || data[2]!=0 || data[3]!=0)) {
- disconnectDevice(dev, tr("Client sent corrupted compressed data!"));
- return false;
- }
+QVariantList SignalProxy::peerData()
+{
+ QVariantList result;
+ for (auto&& peer : _peerMap.values()) {
+ QVariantMap data;
+ data["id"] = peer->id();
+ data["clientVersion"] = peer->clientVersion();
+ // We explicitly rename this, as, due to the Debian reproducability changes, buildDate isn’t actually the build
+ // date anymore, but on newer clients the date of the last git commit
+ data["clientVersionDate"] = peer->buildDate();
+ data["remoteAddress"] = peer->address();
+ data["connectedSince"] = peer->connectedSince();
+ data["secure"] = peer->isSecure();
+ data["features"] = static_cast<quint32>(peer->features().toLegacyFeatures());
+ data["featureList"] = peer->features().toStringList();
+ result << data;
}
+ return result;
+}
- rawItem = qUncompress(rawItem);
-
- QDataStream itemStream(&rawItem, QIODevice::ReadOnly);
- itemStream.setVersion(QDataStream::Qt_4_2);
- itemStream >> item;
- } else {
- in >> item;
- }
+Peer* SignalProxy::peerById(int peerId)
+{
+ // We use ::value() here instead of the [] operator because the latter has the side-effect
+ // of automatically inserting a null value with the passed key into the map. See
+ // https://doc.qt.io/qt-5/qhash.html#operator-5b-5d and https://doc.qt.io/qt-5/qhash.html#value.
+ return _peerMap.value(peerId);
+}
- if(!item.isValid()) {
- disconnectDevice(dev, tr("Client sent corrupt data: unable to load QVariant!"));
- return false;
- }
+void SignalProxy::restrictTargetPeers(QSet<Peer*> peers, std::function<void()> closure)
+{
+ auto previousRestrictMessageTarget = _restrictMessageTarget;
+ auto previousRestrictedTargets = _restrictedTargets;
+ _restrictMessageTarget = true;
+ _restrictedTargets = peers;
- return true;
-}
+ closure();
-bool SignalProxy::methodsMatch(const QMetaMethod &signal, const QMetaMethod &slot) const {
- // if we don't even have the same basename it's a sure NO
- QString baseName = methodBaseName(signal);
- if(baseName != methodBaseName(slot))
- return false;
-
- // are the signatures compatible?
- if(!QObject::staticMetaObject.checkConnectArgs(signal.signature(), slot.signature()))
- return false;
-
- // we take an educated guess if the signals and slots match
- QString signalsuffix = ::methodName(signal);
- QString slotprefix = ::methodName(slot);
- if(!baseName.isEmpty()) {
- signalsuffix = signalsuffix.mid(baseName.count()).toLower();
- slotprefix = slotprefix.left(slotprefix.count() - baseName.count()).toLower();
- }
-
- uint sizediff = qAbs(slotprefix.size() - signalsuffix.size());
- int ratio = editingDistance(slotprefix, signalsuffix) - sizediff;
-// if(ratio < 2) {
-// qDebug() << Q_FUNC_INFO;
-// qDebug() << methodBaseName(signal) << methodBaseName(slot);
-// qDebug() << signalsuffix << slotprefix << sizediff << ratio;
-// }
- return (ratio < 2);
+ _restrictMessageTarget = previousRestrictMessageTarget;
+ _restrictedTargets = previousRestrictedTargets;
}
-QString SignalProxy::methodBaseName(const QMetaMethod &method) {
- QString methodname = QString(method.signature()).section("(", 0, 0);
-
- // determine where we have to chop:
- int upperCharPos;
- if(method.methodType() == QMetaMethod::Slot) {
- // we take evertyhing from the first uppercase char if it's slot
- upperCharPos = methodname.indexOf(QRegExp("[A-Z]"));
- if(upperCharPos == -1)
- return QString();
- methodname = methodname.mid(upperCharPos);
- } else {
- // and if it's a signal we discard everything from the last uppercase char
- upperCharPos = methodname.lastIndexOf(QRegExp("[A-Z]"));
- if(upperCharPos == -1)
- return QString();
- methodname = methodname.left(upperCharPos);
- }
-
- methodname[0] = methodname[0].toUpper();
-
- return methodname;
+Peer* SignalProxy::sourcePeer()
+{
+ return _sourcePeer;
}
-QVariantMap SignalProxy::initData(SyncableObject *obj) const {
- return obj->toVariantMap();
+void SignalProxy::setSourcePeer(Peer* sourcePeer)
+{
+ _sourcePeer = sourcePeer;
}
-void SignalProxy::setInitData(SyncableObject *obj, const QVariantMap &properties) {
- if(obj->isInitialized())
- return;
- obj->fromVariantMap(properties);
- obj->setInitialized();
- emit objectInitialized(obj);
- invokeSlot(obj, updatedRemotelyId(obj));
+Peer* SignalProxy::targetPeer()
+{
+ return _targetPeer;
}
-void SignalProxy::sendHeartBeat() {
- QVariantList heartBeatParams;
- heartBeatParams << QTime::currentTime();
- PeerHash::iterator peer = _peers.begin();
- while(peer != _peers.end()) {
- if((*peer)->type() == AbstractPeer::IODevicePeer) {
- IODevicePeer *ioPeer = static_cast<IODevicePeer *>(*peer);
- ioPeer->dispatchSignal(SignalProxy::HeartBeat, heartBeatParams);
- if(ioPeer->sentHeartBeats > 0) {
- updateLag(ioPeer, ioPeer->sentHeartBeats * _heartBeatTimer.interval());
- }
- if(ioPeer->sentHeartBeats > 1) {
- qWarning() << "SignalProxy: Disconnecting peer:" << ioPeer->address()
- << "(didn't receive a heartbeat for over" << ioPeer->sentHeartBeats * _heartBeatTimer.interval() / 1000 << "seconds)";
- ioPeer->close();
- } else {
- ioPeer->sentHeartBeats++;
- }
- }
- peer++;
- }
+void SignalProxy::setTargetPeer(Peer* targetPeer)
+{
+ _targetPeer = targetPeer;
}
-void SignalProxy::receiveHeartBeat(AbstractPeer *peer, const QVariantList ¶ms) {
- peer->dispatchSignal(SignalProxy::HeartBeatReply, params);
-}
+// ---- SlotObjectBase ---------------------------------------------------------------------------------------------------------------------
-void SignalProxy::receiveHeartBeatReply(AbstractPeer *peer, const QVariantList ¶ms) {
- if(peer->type() != AbstractPeer::IODevicePeer) {
- qWarning() << "SignalProxy::receiveHeartBeatReply: received heart beat from a non IODevicePeer!";
- return;
- }
+SignalProxy::SlotObjectBase::SlotObjectBase(const QObject* context)
+ : _context{context}
+{}
- IODevicePeer *ioPeer = static_cast<IODevicePeer *>(peer);
- ioPeer->sentHeartBeats = 0;
+const QObject* SignalProxy::SlotObjectBase::context() const
+{
+ return _context;
+}
- if(params.isEmpty()) {
- qWarning() << "SignalProxy: received heart beat reply with less params then sent from:" << ioPeer->address();
- return;
- }
+// ---- ExtendedMetaObject ----------------------------------------------------------------------------------------------------------------
- QTime sendTime = params[0].value<QTime>();
- updateLag(ioPeer, sendTime.msecsTo(QTime::currentTime()) / 2);
+SignalProxy::ExtendedMetaObject::ExtendedMetaObject(const QMetaObject* meta, bool checkConflicts)
+ : _meta(meta)
+ , _updatedRemotelyId(_meta->indexOfSignal("updatedRemotely()"))
+{
+ for (int i = 0; i < _meta->methodCount(); i++) {
+ if (_meta->method(i).methodType() != QMetaMethod::Slot)
+ continue;
+
+ if (_meta->method(i).methodSignature().contains('*'))
+ continue; // skip methods with ptr params
+
+ QByteArray method = methodName(_meta->method(i));
+ if (method.startsWith("init"))
+ continue; // skip initializers
+
+ if (_methodIds.contains(method)) {
+ /* funny... moc creates for methods containing default parameters multiple metaMethod with separate methodIds.
+ we don't care... we just need the full fledged version
+ */
+ const QMetaMethod& current = _meta->method(_methodIds[method]);
+ const QMetaMethod& candidate = _meta->method(i);
+ if (current.parameterTypes().count() > candidate.parameterTypes().count()) {
+ int minCount = candidate.parameterTypes().count();
+ QList<QByteArray> commonParams = current.parameterTypes().mid(0, minCount);
+ if (commonParams == candidate.parameterTypes())
+ continue; // we already got the full featured version
+ }
+ else {
+ int minCount = current.parameterTypes().count();
+ QList<QByteArray> commonParams = candidate.parameterTypes().mid(0, minCount);
+ if (commonParams == current.parameterTypes()) {
+ _methodIds[method] = i; // use the new one
+ continue;
+ }
+ }
+ if (checkConflicts) {
+ qWarning() << "class" << meta->className() << "contains overloaded methods which is currently not supported!";
+ qWarning() << " - " << _meta->method(i).methodSignature() << "conflicts with"
+ << _meta->method(_methodIds[method]).methodSignature();
+ }
+ continue;
+ }
+ _methodIds[method] = i;
+ }
}
-void SignalProxy::customEvent(QEvent *event) {
- switch(event->type()) {
- case PeerSignal:
- {
- PeerSignalEvent *e = static_cast<PeerSignalEvent *>(event);
- receivePeerSignal(e->sender, e->requestType, e->params);
- }
- event->accept();
- break;
- case RemovePeer:
- {
- RemovePeerEvent *e = static_cast<RemovePeerEvent *>(event);
- removePeer(e->peer);
+const SignalProxy::ExtendedMetaObject::MethodDescriptor& SignalProxy::ExtendedMetaObject::methodDescriptor(int methodId)
+{
+ if (!_methods.contains(methodId)) {
+ _methods[methodId] = MethodDescriptor(_meta->method(methodId));
}
- event->accept();
- default:
- return;
- }
+ return _methods[methodId];
}
-void SignalProxy::disconnectDevice(QIODevice *dev, const QString &reason) {
- if(!reason.isEmpty())
- qWarning() << qPrintable(reason);
- QAbstractSocket *sock = qobject_cast<QAbstractSocket *>(dev);
- if(sock)
- qWarning() << qPrintable(tr("Disconnecting")) << qPrintable(sock->peerAddress().toString());
- dev->close();
+const QHash<int, int>& SignalProxy::ExtendedMetaObject::receiveMap()
+{
+ if (_receiveMap.isEmpty()) {
+ QHash<int, int> receiveMap;
+
+ QMetaMethod requestSlot;
+ QByteArray returnTypeName;
+ QByteArray signature;
+ QByteArray methodName;
+ QByteArray params;
+ int paramsPos;
+ int receiverId;
+ const int methodCount = _meta->methodCount();
+ for (int i = 0; i < methodCount; i++) {
+ requestSlot = _meta->method(i);
+ if (requestSlot.methodType() != QMetaMethod::Slot)
+ continue;
+
+ returnTypeName = requestSlot.typeName();
+ if (QMetaType::Void == (QMetaType::Type)returnType(i))
+ continue;
+
+ signature = requestSlot.methodSignature();
+ if (!signature.startsWith("request"))
+ continue;
+
+ paramsPos = signature.indexOf('(');
+ if (paramsPos == -1)
+ continue;
+
+ methodName = signature.left(paramsPos);
+ params = signature.mid(paramsPos);
+
+ methodName = methodName.replace("request", "receive");
+ params = params.left(params.count() - 1) + ", " + returnTypeName + ")";
+
+ signature = QMetaObject::normalizedSignature(methodName + params);
+ receiverId = _meta->indexOfSlot(signature);
+
+ if (receiverId == -1) {
+ signature = QMetaObject::normalizedSignature(methodName + "(" + returnTypeName + ")");
+ receiverId = _meta->indexOfSlot(signature);
+ }
+
+ if (receiverId != -1) {
+ receiveMap[i] = receiverId;
+ }
+ }
+ _receiveMap = receiveMap;
+ }
+ return _receiveMap;
}
-void SignalProxy::updateLag(IODevicePeer *peer, int lag) {
- peer->lag = lag;
- if(proxyMode() == Client) {
- emit lagUpdated(lag);
- }
+QByteArray SignalProxy::ExtendedMetaObject::methodName(const QMetaMethod& method)
+{
+ QByteArray sig(method.methodSignature());
+ return sig.left(sig.indexOf("("));
}
+QString SignalProxy::ExtendedMetaObject::methodBaseName(const QMetaMethod& method)
+{
+ QString methodname = QString(method.methodSignature()).section("(", 0, 0);
+
+ // determine where we have to chop:
+ int upperCharPos;
+ if (method.methodType() == QMetaMethod::Slot) {
+ // we take evertyhing from the first uppercase char if it's slot
+ upperCharPos = methodname.indexOf(QRegExp("[A-Z]"));
+ if (upperCharPos == -1)
+ return QString();
+ methodname = methodname.mid(upperCharPos);
+ }
+ else {
+ // and if it's a signal we discard everything from the last uppercase char
+ upperCharPos = methodname.lastIndexOf(QRegExp("[A-Z]"));
+ if (upperCharPos == -1)
+ return QString();
+ methodname = methodname.left(upperCharPos);
+ }
-void SignalProxy::dumpProxyStats() {
- QString mode;
- if(proxyMode() == Server)
- mode = "Server";
- else
- mode = "Client";
-
- int sigCount = 0;
- foreach(SignalRelay *relay, _relayHash.values())
- sigCount += relay->sigCount();
-
- int slaveCount = 0;
- foreach(ObjectId oid, _syncSlave.values())
- slaveCount += oid.count();
-
- qDebug() << this;
- qDebug() << " Proxy Mode:" << mode;
- qDebug() << "attached sending Objects:" << _relayHash.count();
- qDebug() << " number of Signals:" << sigCount;
- qDebug() << " attached Slots:" << _attachedSlots.count();
- qDebug() << " number of synced Slaves:" << slaveCount;
- qDebug() << "number of Classes cached:" << _classInfo.count();
-}
-
-void SignalProxy::dumpSyncMap(SyncableObject *object) {
- const QMetaObject *meta = object->metaObject();
- qDebug() << "SignalProxy: SyncMap for Class" << meta->className();
+ methodname[0] = methodname[0].toUpper();
- QHash<QByteArray, int> syncMap_ = syncMap(object);
- QHash<QByteArray, int>::const_iterator iter = syncMap_.constBegin();
- while(iter != syncMap_.constEnd()) {
- qDebug() << qPrintable(QString("%1 --> %2 %3").arg(QString(iter.key()), 40).arg(iter.value()).arg(QString(meta->method(iter.value()).signature())));
- iter++;
- }
+ return methodname;
}
-void SignalProxy::updateSecureState() {
- bool wasSecure = _secure;
+SignalProxy::ExtendedMetaObject::MethodDescriptor::MethodDescriptor(const QMetaMethod& method)
+ : _methodName(SignalProxy::ExtendedMetaObject::methodName(method))
+ , _returnType(QMetaType::type(method.typeName()))
+{
+ // determine argTypes
+ QList<QByteArray> paramTypes = method.parameterTypes();
+ QList<int> argTypes;
+ for (int i = 0; i < paramTypes.count(); i++) {
+ argTypes.append(QMetaType::type(paramTypes[i]));
+ }
+ _argTypes = argTypes;
- _secure = !_peers.isEmpty();
- PeerHash::const_iterator peerIter;
- for(peerIter = _peers.constBegin(); peerIter != _peers.constEnd(); peerIter++) {
- _secure &= (*peerIter)->isSecure();
- }
+ // determine minArgCount
+ QString signature(method.methodSignature());
+ _minArgCount = method.parameterTypes().count() - signature.count("=");
- if(wasSecure != _secure)
- emit secureStateChanged(_secure);
+ _receiverMode = (_methodName.startsWith("request")) ? SignalProxy::Server : SignalProxy::Client;
}
projects / quassel.git / blobdiff