1 /***************************************************************************
2 * Copyright (C) 2005-2014 by the Quassel Project *
3 * devel@quassel-irc.org *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) version 3. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
19 ***************************************************************************/
21 #include <QCoreApplication>
22 #include <QHostAddress>
23 #include <QMetaMethod>
24 #include <QMetaProperty>
31 #include "signalproxy.h"
35 #include "syncableobject.h"
39 using namespace Protocol;
41 class RemovePeerEvent : public QEvent
44 RemovePeerEvent(Peer *peer) : QEvent(QEvent::Type(SignalProxy::RemovePeerEvent)), peer(peer) {}
49 // ==================================================
51 // ==================================================
52 class SignalProxy::SignalRelay : public QObject
54 /* Q_OBJECT is not necessary or even allowed, because we implement
55 qt_metacall ourselves (and don't use any other features of the meta
59 SignalRelay(SignalProxy *parent) : QObject(parent), _proxy(parent) {}
60 inline SignalProxy *proxy() const { return _proxy; }
62 int qt_metacall(QMetaObject::Call _c, int _id, void **_a);
64 void attachSignal(QObject *sender, int signalId, const QByteArray &funcName);
65 void detachSignal(QObject *sender, int signalId = -1);
72 Signal(QObject *sender, int sigId, const QByteArray &signature) : sender(sender), signalId(sigId), signature(signature) {}
73 Signal() : sender(0), signalId(-1) {}
77 QHash<int, Signal> _slots;
81 void SignalProxy::SignalRelay::attachSignal(QObject *sender, int signalId, const QByteArray &funcName)
83 // we ride without safetybelts here... all checking for valid method etc pp has to be done by the caller
84 // all connected methodIds are offset by the standard methodCount of QObject
86 for (int i = 0;; i++) {
87 if (!_slots.contains(i)) {
94 if (!funcName.isEmpty()) {
95 fn = QMetaObject::normalizedSignature(funcName);
98 fn = SIGNAL(fakeMethodSignature());
99 fn = fn.replace("fakeMethodSignature()", sender->metaObject()->method(signalId).signature());
102 _slots[slotId] = Signal(sender, signalId, fn);
104 QMetaObject::connect(sender, signalId, this, QObject::staticMetaObject.methodCount() + slotId);
108 void SignalProxy::SignalRelay::detachSignal(QObject *sender, int signalId)
110 QHash<int, Signal>::iterator slotIter = _slots.begin();
111 while (slotIter != _slots.end()) {
112 if (slotIter->sender == sender && (signalId == -1 || slotIter->signalId == signalId)) {
113 slotIter = _slots.erase(slotIter);
124 int SignalProxy::SignalRelay::qt_metacall(QMetaObject::Call _c, int _id, void **_a)
126 _id = QObject::qt_metacall(_c, _id, _a);
130 if (_c == QMetaObject::InvokeMetaMethod) {
131 if (_slots.contains(_id)) {
132 QObject *caller = sender();
134 SignalProxy::ExtendedMetaObject *eMeta = proxy()->extendedMetaObject(caller->metaObject());
137 const Signal &signal = _slots[_id];
141 const QList<int> &argTypes = eMeta->argTypes(signal.signalId);
142 for (int i = 0; i < argTypes.size(); i++) {
143 if (argTypes[i] == 0) {
144 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());
145 qWarning() << " - make sure all your data types are known by the Qt MetaSystem";
148 params << QVariant(argTypes[i], _a[i+1]);
151 if (argTypes.size() >= 1 && argTypes[0] == qMetaTypeId<PeerPtr>() && proxy()->proxyMode() == SignalProxy::Server) {
152 Peer *peer = params[0].value<PeerPtr>();
153 proxy()->dispatch(peer, RpcCall(signal.signature, params));
155 proxy()->dispatch(RpcCall(signal.signature, params));
157 _id -= _slots.count();
163 // ==================================================
165 // ==================================================
166 SignalProxy::SignalProxy(QObject *parent)
169 setProxyMode(Client);
174 SignalProxy::SignalProxy(ProxyMode mode, QObject *parent)
182 SignalProxy::~SignalProxy()
184 QHash<QByteArray, ObjectId>::iterator classIter = _syncSlave.begin();
185 while (classIter != _syncSlave.end()) {
186 ObjectId::iterator objIter = classIter->begin();
187 while (objIter != classIter->end()) {
188 SyncableObject *obj = objIter.value();
189 objIter = classIter->erase(objIter);
190 obj->stopSynchronize(this);
200 void SignalProxy::setProxyMode(ProxyMode mode)
202 if (_peers.count()) {
203 qWarning() << Q_FUNC_INFO << "Cannot change proxy mode while connected";
215 void SignalProxy::init()
217 _heartBeatInterval = 0;
218 _maxHeartBeatCount = 0;
219 _signalRelay = new SignalRelay(this);
220 setHeartBeatInterval(30);
221 setMaxHeartBeatCount(2);
227 void SignalProxy::initServer()
232 void SignalProxy::initClient()
234 attachSlot("__objectRenamed__", this, SLOT(objectRenamed(QByteArray,QString,QString)));
238 void SignalProxy::setHeartBeatInterval(int secs)
240 if (_heartBeatInterval != secs) {
241 _heartBeatInterval = secs;
242 emit heartBeatIntervalChanged(secs);
247 void SignalProxy::setMaxHeartBeatCount(int max)
249 if (_maxHeartBeatCount != max) {
250 _maxHeartBeatCount = max;
251 emit maxHeartBeatCountChanged(max);
256 bool SignalProxy::addPeer(Peer *peer)
261 if (_peers.contains(peer))
264 if (!peer->isOpen()) {
265 qWarning("SignalProxy: peer needs to be open!");
269 if (proxyMode() == Client) {
270 if (!_peers.isEmpty()) {
271 qWarning("SignalProxy: only one peer allowed in client mode!");
274 connect(peer, SIGNAL(lagUpdated(int)), SIGNAL(lagUpdated(int)));
277 connect(peer, SIGNAL(disconnected()), SLOT(removePeerBySender()));
278 connect(peer, SIGNAL(secureStateChanged(bool)), SLOT(updateSecureState()));
281 peer->setParent(this);
285 peer->setSignalProxy(this);
287 if (_peers.count() == 1)
295 void SignalProxy::removeAllPeers()
297 Q_ASSERT(proxyMode() == Server || _peers.count() <= 1);
298 // wee need to copy that list since we modify it in the loop
299 QSet<Peer *> peers = _peers;
300 foreach(Peer *peer, peers) {
306 void SignalProxy::removePeer(Peer *peer)
309 qWarning() << Q_FUNC_INFO << "Trying to remove a null peer!";
313 if (_peers.isEmpty()) {
314 qWarning() << "SignalProxy::removePeer(): No peers in use!";
318 if (!_peers.contains(peer)) {
319 qWarning() << "SignalProxy: unknown Peer" << peer;
323 disconnect(peer, 0, this, 0);
324 peer->setSignalProxy(0);
327 emit peerRemoved(peer);
329 if (peer->parent() == this)
334 if (_peers.isEmpty())
339 void SignalProxy::removePeerBySender()
341 removePeer(qobject_cast<Peer *>(sender()));
345 void SignalProxy::renameObject(const SyncableObject *obj, const QString &newname, const QString &oldname)
347 if (proxyMode() == Client)
350 const QMetaObject *meta = obj->syncMetaObject();
351 const QByteArray className(meta->className());
352 objectRenamed(className, newname, oldname);
354 dispatch(RpcCall("__objectRenamed__", QVariantList() << className << newname << oldname));
358 void SignalProxy::objectRenamed(const QByteArray &classname, const QString &newname, const QString &oldname)
360 if (_syncSlave.contains(classname) && _syncSlave[classname].contains(oldname) && oldname != newname) {
361 SyncableObject *obj = _syncSlave[classname][newname] = _syncSlave[classname].take(oldname);
367 const QMetaObject *SignalProxy::metaObject(const QObject *obj)
369 if (const SyncableObject *syncObject = qobject_cast<const SyncableObject *>(obj))
370 return syncObject->syncMetaObject();
372 return obj->metaObject();
376 SignalProxy::ExtendedMetaObject *SignalProxy::extendedMetaObject(const QMetaObject *meta) const
378 if (_extendedMetaObjects.contains(meta))
379 return _extendedMetaObjects[meta];
385 SignalProxy::ExtendedMetaObject *SignalProxy::createExtendedMetaObject(const QMetaObject *meta, bool checkConflicts)
387 if (!_extendedMetaObjects.contains(meta)) {
388 _extendedMetaObjects[meta] = new ExtendedMetaObject(meta, checkConflicts);
390 return _extendedMetaObjects[meta];
394 bool SignalProxy::attachSignal(QObject *sender, const char *signal, const QByteArray &sigName)
396 const QMetaObject *meta = sender->metaObject();
397 QByteArray sig(meta->normalizedSignature(signal).mid(1));
398 int methodId = meta->indexOfMethod(sig.constData());
399 if (methodId == -1 || meta->method(methodId).methodType() != QMetaMethod::Signal) {
400 qWarning() << "SignalProxy::attachSignal(): No such signal" << signal;
404 createExtendedMetaObject(meta);
405 _signalRelay->attachSignal(sender, methodId, sigName);
407 disconnect(sender, SIGNAL(destroyed(QObject *)), this, SLOT(detachObject(QObject *)));
408 connect(sender, SIGNAL(destroyed(QObject *)), this, SLOT(detachObject(QObject *)));
413 bool SignalProxy::attachSlot(const QByteArray &sigName, QObject *recv, const char *slot)
415 const QMetaObject *meta = recv->metaObject();
416 int methodId = meta->indexOfMethod(meta->normalizedSignature(slot).mid(1));
417 if (methodId == -1 || meta->method(methodId).methodType() == QMetaMethod::Method) {
418 qWarning() << "SignalProxy::attachSlot(): No such slot" << slot;
422 createExtendedMetaObject(meta);
424 QByteArray funcName = QMetaObject::normalizedSignature(sigName.constData());
425 _attachedSlots.insert(funcName, qMakePair(recv, methodId));
427 disconnect(recv, SIGNAL(destroyed(QObject *)), this, SLOT(detachObject(QObject *)));
428 connect(recv, SIGNAL(destroyed(QObject *)), this, SLOT(detachObject(QObject *)));
433 void SignalProxy::synchronize(SyncableObject *obj)
435 createExtendedMetaObject(obj, true);
437 // attaching as slave to receive sync Calls
438 QByteArray className(obj->syncMetaObject()->className());
439 _syncSlave[className][obj->objectName()] = obj;
441 if (proxyMode() == Server) {
442 obj->setInitialized();
443 emit objectInitialized(obj);
446 if (obj->isInitialized())
447 emit objectInitialized(obj);
452 obj->synchronize(this);
456 void SignalProxy::detachObject(QObject *obj)
463 void SignalProxy::detachSignals(QObject *sender)
465 _signalRelay->detachSignal(sender);
469 void SignalProxy::detachSlots(QObject *receiver)
471 SlotHash::iterator slotIter = _attachedSlots.begin();
472 while (slotIter != _attachedSlots.end()) {
473 if (slotIter.value().first == receiver) {
474 slotIter = _attachedSlots.erase(slotIter);
482 void SignalProxy::stopSynchronize(SyncableObject *obj)
484 // we can't use a className here, since it might be effed up, if we receive the call as a result of a decon
485 // gladly the objectName() is still valid. So we have only to iterate over the classes not each instance! *sigh*
486 QHash<QByteArray, ObjectId>::iterator classIter = _syncSlave.begin();
487 while (classIter != _syncSlave.end()) {
488 if (classIter->contains(obj->objectName()) && classIter.value()[obj->objectName()] == obj) {
489 classIter->remove(obj->objectName());
494 obj->stopSynchronize(this);
499 void SignalProxy::dispatch(const T &protoMessage)
501 foreach (Peer *peer, _peers) {
503 peer->dispatch(protoMessage);
505 QCoreApplication::postEvent(this, new ::RemovePeerEvent(peer));
511 void SignalProxy::dispatch(Peer *peer, const T &protoMessage)
513 if (peer && peer->isOpen())
514 peer->dispatch(protoMessage);
516 QCoreApplication::postEvent(this, new ::RemovePeerEvent(peer));
520 void SignalProxy::handle(Peer *peer, const SyncMessage &syncMessage)
522 if (!_syncSlave.contains(syncMessage.className) || !_syncSlave[syncMessage.className].contains(syncMessage.objectName)) {
523 qWarning() << QString("no registered receiver for sync call: %1::%2 (objectName=\"%3\"). Params are:").arg(syncMessage.className, syncMessage.slotName, syncMessage.objectName)
524 << syncMessage.params;
528 SyncableObject *receiver = _syncSlave[syncMessage.className][syncMessage.objectName];
529 ExtendedMetaObject *eMeta = extendedMetaObject(receiver);
530 if (!eMeta->slotMap().contains(syncMessage.slotName)) {
531 qWarning() << QString("no matching slot for sync call: %1::%2 (objectName=\"%3\"). Params are:").arg(syncMessage.className, syncMessage.slotName, syncMessage.objectName)
532 << syncMessage.params;
536 int slotId = eMeta->slotMap()[syncMessage.slotName];
537 if (proxyMode() != eMeta->receiverMode(slotId)) {
538 qWarning("SignalProxy::handleSync(): invokeMethod for \"%s\" failed. Wrong ProxyMode!", eMeta->methodName(slotId).constData());
542 QVariant returnValue((QVariant::Type)eMeta->returnType(slotId));
543 if (!invokeSlot(receiver, slotId, syncMessage.params, returnValue, peer)) {
544 qWarning("SignalProxy::handleSync(): invokeMethod for \"%s\" failed ", eMeta->methodName(slotId).constData());
548 if (returnValue.type() != QVariant::Invalid && eMeta->receiveMap().contains(slotId)) {
549 int receiverId = eMeta->receiveMap()[slotId];
550 QVariantList returnParams;
551 if (eMeta->argTypes(receiverId).count() > 1)
552 returnParams << syncMessage.params;
553 returnParams << returnValue;
554 peer->dispatch(SyncMessage(syncMessage.className, syncMessage.objectName, eMeta->methodName(receiverId), returnParams));
557 // send emit update signal
558 invokeSlot(receiver, eMeta->updatedRemotelyId());
562 void SignalProxy::handle(Peer *peer, const InitRequest &initRequest)
564 if (!_syncSlave.contains(initRequest.className)) {
565 qWarning() << "SignalProxy::handleInitRequest() received initRequest for unregistered Class:"
566 << initRequest.className;
570 if (!_syncSlave[initRequest.className].contains(initRequest.objectName)) {
571 qWarning() << "SignalProxy::handleInitRequest() received initRequest for unregistered Object:"
572 << initRequest.className << initRequest.objectName;
576 SyncableObject *obj = _syncSlave[initRequest.className][initRequest.objectName];
577 peer->dispatch(InitData(initRequest.className, initRequest.objectName, initData(obj)));
581 void SignalProxy::handle(Peer *peer, const InitData &initData)
585 if (!_syncSlave.contains(initData.className)) {
586 qWarning() << "SignalProxy::handleInitData() received initData for unregistered Class:"
587 << initData.className;
591 if (!_syncSlave[initData.className].contains(initData.objectName)) {
592 qWarning() << "SignalProxy::handleInitData() received initData for unregistered Object:"
593 << initData.className << initData.objectName;
597 SyncableObject *obj = _syncSlave[initData.className][initData.objectName];
598 setInitData(obj, initData.initData);
602 void SignalProxy::handle(Peer *peer, const RpcCall &rpcCall)
606 SlotHash::const_iterator slot = _attachedSlots.constFind(rpcCall.slotName);
607 while (slot != _attachedSlots.constEnd() && slot.key() == rpcCall.slotName) {
608 receiver = (*slot).first;
609 methodId = (*slot).second;
610 if (!invokeSlot(receiver, methodId, rpcCall.params, peer)) {
611 ExtendedMetaObject *eMeta = extendedMetaObject(receiver);
612 qWarning("SignalProxy::handleSignal(): invokeMethod for \"%s\" failed ", eMeta->methodName(methodId).constData());
619 bool SignalProxy::invokeSlot(QObject *receiver, int methodId, const QVariantList ¶ms, QVariant &returnValue, Peer *peer)
621 ExtendedMetaObject *eMeta = extendedMetaObject(receiver);
622 const QList<int> args = eMeta->argTypes(methodId);
623 const int numArgs = params.count() < args.count()
627 if (eMeta->minArgCount(methodId) > params.count()) {
628 qWarning() << "SignalProxy::invokeSlot(): not enough params to invoke" << eMeta->methodName(methodId);
632 void *_a[] = { 0, // return type...
633 0, 0, 0, 0, 0, // and 10 args - that's the max size qt can handle with signals and slots
636 // check for argument compatibility and build params array
637 for (int i = 0; i < numArgs; i++) {
638 if (!params[i].isValid()) {
639 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());
640 qWarning() << " - make sure all your data types are known by the Qt MetaSystem";
643 if (args[i] != QMetaType::type(params[i].typeName())) {
644 qWarning() << "SignalProxy::invokeSlot(): incompatible param types to invoke" << eMeta->methodName(methodId);
647 // if first arg is a PeerPtr, replace it by the address of the peer originally receiving the RpcCall
648 if (peer && i == 0 && args[0] == qMetaTypeId<PeerPtr>()) {
649 QVariant v = QVariant::fromValue<PeerPtr>(peer);
650 _a[1] = const_cast<void*>(v.constData());
652 _a[i+1] = const_cast<void *>(params[i].constData());
655 if (returnValue.type() != QVariant::Invalid)
656 _a[0] = const_cast<void *>(returnValue.constData());
658 Qt::ConnectionType type = QThread::currentThread() == receiver->thread()
659 ? Qt::DirectConnection
660 : Qt::QueuedConnection;
662 if (type == Qt::DirectConnection) {
663 return receiver->qt_metacall(QMetaObject::InvokeMetaMethod, methodId, _a) < 0;
666 qWarning() << "Queued Connections are not implemented yet";
667 // note to self: qmetaobject.cpp:990 ff
673 bool SignalProxy::invokeSlot(QObject *receiver, int methodId, const QVariantList ¶ms, Peer *peer)
676 return invokeSlot(receiver, methodId, params, ret, peer);
680 void SignalProxy::requestInit(SyncableObject *obj)
682 if (proxyMode() == Server || obj->isInitialized())
685 dispatch(InitRequest(obj->syncMetaObject()->className(), obj->objectName()));
689 QVariantMap SignalProxy::initData(SyncableObject *obj) const
691 return obj->toVariantMap();
695 void SignalProxy::setInitData(SyncableObject *obj, const QVariantMap &properties)
697 if (obj->isInitialized())
699 obj->fromVariantMap(properties);
700 obj->setInitialized();
701 emit objectInitialized(obj);
702 invokeSlot(obj, extendedMetaObject(obj)->updatedRemotelyId());
706 void SignalProxy::customEvent(QEvent *event)
708 switch ((int)event->type()) {
709 case RemovePeerEvent: {
710 ::RemovePeerEvent *e = static_cast< ::RemovePeerEvent *>(event);
717 qWarning() << Q_FUNC_INFO << "Received unknown custom event:" << event->type();
723 void SignalProxy::sync_call__(const SyncableObject *obj, SignalProxy::ProxyMode modeType, const char *funcname, va_list ap)
725 // qDebug() << obj << modeType << "(" << _proxyMode << ")" << funcname;
726 if (modeType != _proxyMode)
729 ExtendedMetaObject *eMeta = extendedMetaObject(obj);
733 const QList<int> &argTypes = eMeta->argTypes(eMeta->methodId(QByteArray(funcname)));
735 for (int i = 0; i < argTypes.size(); i++) {
736 if (argTypes[i] == 0) {
737 qWarning() << Q_FUNC_INFO << "received invalid data for argument number" << i << "of signal" << QString("%1::%2").arg(eMeta->metaObject()->className()).arg(funcname);
738 qWarning() << " - make sure all your data types are known by the Qt MetaSystem";
741 params << QVariant(argTypes[i], va_arg(ap, void *));
744 if (argTypes.size() >= 1 && argTypes[0] == qMetaTypeId<PeerPtr>() && proxyMode() == SignalProxy::Server) {
745 Peer *peer = params[0].value<PeerPtr>();
746 dispatch(peer, SyncMessage(eMeta->metaObject()->className(), obj->objectName(), QByteArray(funcname), params));
748 dispatch(SyncMessage(eMeta->metaObject()->className(), obj->objectName(), QByteArray(funcname), params));
752 void SignalProxy::disconnectDevice(QIODevice *dev, const QString &reason)
754 if (!reason.isEmpty())
755 qWarning() << qPrintable(reason);
756 QAbstractSocket *sock = qobject_cast<QAbstractSocket *>(dev);
758 qWarning() << qPrintable(tr("Disconnecting")) << qPrintable(sock->peerAddress().toString());
763 void SignalProxy::dumpProxyStats()
766 if (proxyMode() == Server)
772 foreach(ObjectId oid, _syncSlave.values())
773 slaveCount += oid.count();
776 qDebug() << " Proxy Mode:" << mode;
777 qDebug() << " attached Slots:" << _attachedSlots.count();
778 qDebug() << " number of synced Slaves:" << slaveCount;
779 qDebug() << "number of Classes cached:" << _extendedMetaObjects.count();
783 void SignalProxy::updateSecureState()
785 bool wasSecure = _secure;
787 _secure = !_peers.isEmpty();
788 foreach (const Peer *peer, _peers) {
789 _secure &= peer->isSecure();
792 if (wasSecure != _secure)
793 emit secureStateChanged(_secure);
797 // ==================================================
798 // ExtendedMetaObject
799 // ==================================================
800 SignalProxy::ExtendedMetaObject::ExtendedMetaObject(const QMetaObject *meta, bool checkConflicts)
802 _updatedRemotelyId(_meta->indexOfSignal("updatedRemotely()"))
804 for (int i = 0; i < _meta->methodCount(); i++) {
805 if (_meta->method(i).methodType() != QMetaMethod::Slot)
808 if (QByteArray(_meta->method(i).signature()).contains('*'))
809 continue; // skip methods with ptr params
811 QByteArray method = methodName(_meta->method(i));
812 if (method.startsWith("init"))
813 continue; // skip initializers
815 if (_methodIds.contains(method)) {
816 /* funny... moc creates for methods containing default parameters multiple metaMethod with separate methodIds.
817 we don't care... we just need the full fledged version
819 const QMetaMethod ¤t = _meta->method(_methodIds[method]);
820 const QMetaMethod &candidate = _meta->method(i);
821 if (current.parameterTypes().count() > candidate.parameterTypes().count()) {
822 int minCount = candidate.parameterTypes().count();
823 QList<QByteArray> commonParams = current.parameterTypes().mid(0, minCount);
824 if (commonParams == candidate.parameterTypes())
825 continue; // we already got the full featured version
828 int minCount = current.parameterTypes().count();
829 QList<QByteArray> commonParams = candidate.parameterTypes().mid(0, minCount);
830 if (commonParams == current.parameterTypes()) {
831 _methodIds[method] = i; // use the new one
835 if (checkConflicts) {
836 qWarning() << "class" << meta->className() << "contains overloaded methods which is currently not supported!";
837 qWarning() << " - " << _meta->method(i).signature() << "conflicts with" << _meta->method(_methodIds[method]).signature();
841 _methodIds[method] = i;
846 const SignalProxy::ExtendedMetaObject::MethodDescriptor &SignalProxy::ExtendedMetaObject::methodDescriptor(int methodId)
848 if (!_methods.contains(methodId)) {
849 _methods[methodId] = MethodDescriptor(_meta->method(methodId));
851 return _methods[methodId];
855 const QHash<int, int> &SignalProxy::ExtendedMetaObject::receiveMap()
857 if (_receiveMap.isEmpty()) {
858 QHash<int, int> receiveMap;
860 QMetaMethod requestSlot;
861 QByteArray returnTypeName;
862 QByteArray signature;
863 QByteArray methodName;
867 const int methodCount = _meta->methodCount();
868 for (int i = 0; i < methodCount; i++) {
869 requestSlot = _meta->method(i);
870 if (requestSlot.methodType() != QMetaMethod::Slot)
873 returnTypeName = requestSlot.typeName();
874 if (QMetaType::Void == (QMetaType::Type)returnType(i))
877 signature = QByteArray(requestSlot.signature());
878 if (!signature.startsWith("request"))
881 paramsPos = signature.indexOf('(');
885 methodName = signature.left(paramsPos);
886 params = signature.mid(paramsPos);
888 methodName = methodName.replace("request", "receive");
889 params = params.left(params.count() - 1) + ", " + returnTypeName + ")";
891 signature = QMetaObject::normalizedSignature(methodName + params);
892 receiverId = _meta->indexOfSlot(signature);
894 if (receiverId == -1) {
895 signature = QMetaObject::normalizedSignature(methodName + "(" + returnTypeName + ")");
896 receiverId = _meta->indexOfSlot(signature);
899 if (receiverId != -1) {
900 receiveMap[i] = receiverId;
903 _receiveMap = receiveMap;
909 QByteArray SignalProxy::ExtendedMetaObject::methodName(const QMetaMethod &method)
911 QByteArray sig(method.signature());
912 return sig.left(sig.indexOf("("));
916 QString SignalProxy::ExtendedMetaObject::methodBaseName(const QMetaMethod &method)
918 QString methodname = QString(method.signature()).section("(", 0, 0);
920 // determine where we have to chop:
922 if (method.methodType() == QMetaMethod::Slot) {
923 // we take evertyhing from the first uppercase char if it's slot
924 upperCharPos = methodname.indexOf(QRegExp("[A-Z]"));
925 if (upperCharPos == -1)
927 methodname = methodname.mid(upperCharPos);
930 // and if it's a signal we discard everything from the last uppercase char
931 upperCharPos = methodname.lastIndexOf(QRegExp("[A-Z]"));
932 if (upperCharPos == -1)
934 methodname = methodname.left(upperCharPos);
937 methodname[0] = methodname[0].toUpper();
943 SignalProxy::ExtendedMetaObject::MethodDescriptor::MethodDescriptor(const QMetaMethod &method)
944 : _methodName(SignalProxy::ExtendedMetaObject::methodName(method)),
945 _returnType(QMetaType::type(method.typeName()))
947 // determine argTypes
948 QList<QByteArray> paramTypes = method.parameterTypes();
950 for (int i = 0; i < paramTypes.count(); i++) {
951 argTypes.append(QMetaType::type(paramTypes[i]));
953 _argTypes = argTypes;
955 // determine minArgCount
956 QString signature(method.signature());
957 _minArgCount = method.parameterTypes().count() - signature.count("=");
959 _receiverMode = (_methodName.startsWith("request"))
960 ? SignalProxy::Server
961 : SignalProxy::Client;