+}
+
+void SignalProxy::detachObject(QObject *obj) {
+ stopSync(obj);
+ detachSignals(obj);
+ detachSlots(obj);
+}
+
+void SignalProxy::detachSignals(QObject *sender) {
+ _signalRelay->detachSignal(sender);
+}
+
+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::stopSync(QObject *obj) {
+ SyncableObject *syncableObject = qobject_cast<SyncableObject *>(obj);
+ if(syncableObject && _syncRelays.contains(syncableObject->syncMetaObject())) {
+ QObject::disconnect(syncableObject, 0, _syncRelays[syncableObject->syncMetaObject()], 0);
+ }
+
+ // 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++;
+ }
+}
+
+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
+ }
+ 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);
+}
+
+void SignalProxy::receivePeerSignal(AbstractPeer *sender, const RequestType &requestType, const QVariantList ¶ms) {
+ switch(requestType) {
+ // list all RequestTypes that shouldnot trigger a heartbeat counter reset here
+ case HeartBeatReply:
+ break;
+ default:
+ if(sender->type() == AbstractPeer::IODevicePeer) {
+ IODevicePeer *ioPeer = static_cast<IODevicePeer *>(sender);
+ ioPeer->sentHeartBeats = 0;
+ }
+ }
+
+ 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;
+
+ case InitData:
+ handleInitData(sender, params);
+ break;
+
+ case HeartBeat:
+ receiveHeartBeat(sender, params);
+ break;
+
+ case HeartBeatReply:
+ receiveHeartBeatReply(sender, params);
+ break;
+
+ default:
+ qWarning() << "SignalProxy::receivePeerSignal(): received undefined CallType" << requestType << params;
+ }
+}
+
+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);
+}
+
+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];
+ ExtendedMetaObject *eMeta = extendedMetaObject(receiver);
+ if(!eMeta->syncMap().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 = eMeta->syncMap()[signal];
+
+ QVariant returnValue((QVariant::Type)eMeta->returnType(slotId));
+ if(!invokeSlot(receiver, slotId, params, returnValue)) {
+ qWarning("SignalProxy::handleSync(): invokeMethod for \"%s\" failed ", eMeta->methodName(slotId).constData());
+ return;
+ }
+
+ if(returnValue.type() != QVariant::Invalid && eMeta->receiveMap().contains(slotId)) {
+ int receiverId = eMeta->receiveMap()[slotId];
+ QVariantList returnParams;
+ returnParams << className
+ << objectName
+ << QByteArray(receiver->metaObject()->method(receiverId).signature());
+ if(eMeta->argTypes(receiverId).count() > 1)
+ returnParams << params;
+ returnParams << returnValue;
+ sender->dispatchSignal(Sync, returnParams);
+ }
+
+ // send emit update signal
+ invokeSlot(receiver, eMeta->updatedRemotelyId());
+}
+
+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);
+
+ sender->dispatchSignal(InitData, params_);
+}
+
+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);
+}
+
+//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)) {
+ ExtendedMetaObject *eMeta = extendedMetaObject(receiver);
+ qWarning("SignalProxy::handleSignal(): invokeMethod for \"%s\" failed ", eMeta->methodName(methodId).constData());
+ }
+ slot++;
+ }
+}
+
+bool SignalProxy::invokeSlot(QObject *receiver, int methodId, const QVariantList ¶ms, QVariant &returnValue) {
+ ExtendedMetaObject *eMeta = extendedMetaObject(receiver);
+ const QList<int> args = eMeta->argTypes(methodId);
+ const int numArgs = params.count() < args.count()
+ ? params.count()
+ : args.count();
+
+ if(eMeta->minArgCount(methodId) > params.count()) {
+ qWarning() << "SignalProxy::invokeSlot(): not enough params to invoke" << eMeta->methodName(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;
+ }
+ 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());
+ }
+
+ if(returnValue.type() != QVariant::Invalid)
+ _a[0] = const_cast<void *>(returnValue.constData());
+
+ Qt::ConnectionType type = QThread::currentThread() == receiver->thread()
+ ? Qt::DirectConnection
+ : Qt::QueuedConnection;
+
+ 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;
+ }
+
+}
+
+bool SignalProxy::invokeSlot(QObject *receiver, int methodId, const QVariantList ¶ms) {
+ QVariant ret;
+ return invokeSlot(receiver, methodId, params, ret);
+}
+
+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);
+}
+
+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;
+
+ if(compressed) {
+ QByteArray rawItem;
+ QDataStream itemStream(&rawItem, QIODevice::WriteOnly);
+
+ itemStream.setVersion(QDataStream::Qt_4_2);
+ itemStream << item;
+
+ rawItem = qCompress(rawItem);
+
+ out << rawItem;
+ } else {
+ out << item;
+ }
+
+ out.device()->seek(0);
+ out << (quint32)(block.size() - sizeof(quint32));
+
+ dev->write(block);
+}
+
+bool SignalProxy::readDataFromDevice(QIODevice *dev, quint32 &blockSize, QVariant &item, bool compressed) {
+ if(!dev)
+ return false;
+
+ 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("Peer tried to send package larger than max package size!"));
+ return false;
+ }
+
+ if(blockSize == 0) {
+ disconnectDevice(dev, tr("Peer 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("Peer sent corrupted compressed data!"));
+ return false;
+ }
+ }
+
+ rawItem = qUncompress(rawItem);
+
+ QDataStream itemStream(&rawItem, QIODevice::ReadOnly);
+ itemStream.setVersion(QDataStream::Qt_4_2);
+ itemStream >> item;
+ } else {
+ in >> item;
+ }
+
+ if(!item.isValid()) {
+ disconnectDevice(dev, tr("Peer sent corrupt data: unable to load QVariant!"));
+ return false;
+ }
+
+ return true;
+}
+
+void SignalProxy::requestInit(SyncableObject *obj) {
+ if(proxyMode() == Server || obj->isInitialized())
+ return;
+
+ QVariantList params;
+ params << obj->syncMetaObject()->className()
+ << obj->objectName();
+ dispatchSignal(InitRequest, params);
+}
+
+QVariantMap SignalProxy::initData(SyncableObject *obj) const {
+ return obj->toVariantMap();
+}
+
+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());
+}
+
+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::receiveHeartBeat(AbstractPeer *peer, const QVariantList ¶ms) {
+ peer->dispatchSignal(SignalProxy::HeartBeatReply, params);
+}
+
+void SignalProxy::receiveHeartBeatReply(AbstractPeer *peer, const QVariantList ¶ms) {
+ if(peer->type() != AbstractPeer::IODevicePeer) {
+ qWarning() << "SignalProxy::receiveHeartBeatReply: received heart beat from a non IODevicePeer!";
+ return;
+ }
+
+ IODevicePeer *ioPeer = static_cast<IODevicePeer *>(peer);
+ ioPeer->sentHeartBeats = 0;
+
+ if(params.isEmpty()) {
+ qWarning() << "SignalProxy: received heart beat reply with less params then sent from:" << ioPeer->address();
+ return;
+ }
+
+ QTime sendTime = params[0].value<QTime>();
+ updateLag(ioPeer, sendTime.msecsTo(QTime::currentTime()) / 2);
+}
+
+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);
+ }
+ event->accept();
+ default:
+ return;
+ }
+}
+
+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();
+}
+
+void SignalProxy::updateLag(IODevicePeer *peer, int lag) {
+ peer->lag = lag;
+ if(proxyMode() == Client) {
+ emit lagUpdated(lag);
+ }
+}
+
+void SignalProxy::dumpProxyStats() {
+ QString mode;
+ if(proxyMode() == Server)
+ mode = "Server";
+ else
+ mode = "Client";
+
+ int sigCount = 0;
+ foreach(SyncRelay *relay, _syncRelays.values())
+ sigCount += relay->signalCount();
+
+ 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:" << _extendedMetaObjects.count();
+}
+
+void SignalProxy::dumpSyncMap(SyncableObject *object) {
+ const QMetaObject *meta = object->metaObject();
+ ExtendedMetaObject *eMeta = extendedMetaObject(object);
+ qDebug() << "SignalProxy: SyncMap for Class" << meta->className();
+
+ QHash<QByteArray, int> syncMap_ = eMeta->syncMap();
+ 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++;
+ }
+}
+
+void SignalProxy::updateSecureState() {
+ bool wasSecure = _secure;
+
+ _secure = !_peers.isEmpty();
+ PeerHash::const_iterator peerIter;
+ for(peerIter = _peers.constBegin(); peerIter != _peers.constEnd(); peerIter++) {
+ _secure &= (*peerIter)->isSecure();
+ }
+
+ if(wasSecure != _secure)
+ emit secureStateChanged(_secure);
+}
+
+
+// ==================================================
+// ExtendedMetaObject
+// ==================================================
+SignalProxy::ExtendedMetaObject::ExtendedMetaObject(const QMetaObject *meta)
+ : _meta(meta),
+ _updatedRemotelyId(-1)
+{
+}
+
+const QList<int> &SignalProxy::ExtendedMetaObject::argTypes(int methodId) {
+ if(!_argTypes.contains(methodId)) {
+ QList<QByteArray> paramTypes = _meta->method(methodId).parameterTypes();
+ QList<int> argTypes;
+ for(int i = 0; i < paramTypes.count(); i++) {
+ argTypes.append(QMetaType::type(paramTypes[i]));
+ }
+ _argTypes[methodId] = argTypes;
+ }
+ return _argTypes[methodId];
+}
+
+const int &SignalProxy::ExtendedMetaObject::returnType(int methodId) {
+ if(!_returnType.contains(methodId)) {
+ _returnType[methodId] = QMetaType::type(_meta->method(methodId).typeName());
+ }
+ return _returnType[methodId];
+}
+
+const int &SignalProxy::ExtendedMetaObject::minArgCount(int methodId) {
+ if(!_minArgCount.contains(methodId)) {
+ QString signature(_meta->method(methodId).signature());
+ _minArgCount[methodId] = _meta->method(methodId).parameterTypes().count() - signature.count("=");
+ }
+ return _minArgCount[methodId];
+}
+
+const QByteArray &SignalProxy::ExtendedMetaObject::methodName(int methodId) {
+ if(!_methodNames.contains(methodId)) {
+ _methodNames[methodId] = methodName(_meta->method(methodId));
+ }
+ return _methodNames[methodId];
+}
+
+const QHash<QByteArray, int> &SignalProxy::ExtendedMetaObject::syncMap() {
+ if(_syncMap.isEmpty()) {
+ 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
+ // --> we deliver to every slot starting with "receive"
+ QByteArray slotSignature;
+ QList<int>::iterator slotIter = slotIndexes.begin();
+ while(slotIter != slotIndexes.end()) {
+ slotSignature = QByteArray(_meta->method(*slotIter).signature());
+ if(slotSignature.startsWith("receive")) {
+ syncMap[slotSignature] = *slotIter;
+ slotIter = slotIndexes.erase(slotIter);
+ } else {
+ slotIter++;
+ }
+ }
+
+ // find the proper sig -> slot matches
+ 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(matchIdx != -1) {
+ slotIndexes.removeAll(matchIdx);
+ syncMap[QByteArray(signal.signature())] = matchIdx;
+ }
+ }
+ _syncMap = syncMap;
+ }
+ return _syncMap;
+}
+
+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 = 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);
+ }
+
+ if(receiverId != -1)
+ receiveMap[i] = receiverId;
+ }
+ _receiveMap = receiveMap;
+ }
+ return _receiveMap;
+}
+
+int SignalProxy::ExtendedMetaObject::updatedRemotelyId() {
+ if(_updatedRemotelyId == -1) {
+ _updatedRemotelyId = _meta->indexOfSignal("updatedRemotely()");
+ }
+ return _updatedRemotelyId;
+}
+
+QByteArray SignalProxy::ExtendedMetaObject::methodName(const QMetaMethod &method) {
+ QByteArray sig(method.signature());
+ return sig.left(sig.indexOf("("));
+}
+
+bool SignalProxy::ExtendedMetaObject::methodsMatch(const QMetaMethod &signal, const QMetaMethod &slot) {
+ // 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;
+ return (ratio < 2);
+}
+
+QString SignalProxy::ExtendedMetaObject::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();