1 /***************************************************************************
2 * Copyright (C) 2005-2016 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 #if QT_VERSION >= 0x050000
100 fn = fn.replace("fakeMethodSignature()", sender->metaObject()->method(signalId).methodSignature());
102 fn = fn.replace("fakeMethodSignature()", sender->metaObject()->method(signalId).signature());
106 _slots[slotId] = Signal(sender, signalId, fn);
108 QMetaObject::connect(sender, signalId, this, QObject::staticMetaObject.methodCount() + slotId);
112 void SignalProxy::SignalRelay::detachSignal(QObject *sender, int signalId)
114 QHash<int, Signal>::iterator slotIter = _slots.begin();
115 while (slotIter != _slots.end()) {
116 if (slotIter->sender == sender && (signalId == -1 || slotIter->signalId == signalId)) {
117 slotIter = _slots.erase(slotIter);
128 int SignalProxy::SignalRelay::qt_metacall(QMetaObject::Call _c, int _id, void **_a)
130 _id = QObject::qt_metacall(_c, _id, _a);
134 if (_c == QMetaObject::InvokeMetaMethod) {
135 if (_slots.contains(_id)) {
136 QObject *caller = sender();
138 SignalProxy::ExtendedMetaObject *eMeta = proxy()->extendedMetaObject(caller->metaObject());
141 const Signal &signal = _slots[_id];
145 const QList<int> &argTypes = eMeta->argTypes(signal.signalId);
146 for (int i = 0; i < argTypes.size(); i++) {
147 if (argTypes[i] == 0) {
148 #if QT_VERSION >= 0x050000
149 qWarning() << "SignalRelay::qt_metacall(): received invalid data for argument number" << i << "of signal" << QString("%1::%2").arg(caller->metaObject()->className()).arg(caller->metaObject()->method(signal.signalId).methodSignature().constData());
151 qWarning() << "SignalRelay::qt_metacall(): received invalid data for argument number" << i << "of signal" << QString("%1::%2").arg(caller->metaObject()->className()).arg(caller->metaObject()->method(signal.signalId).signature());
153 qWarning() << " - make sure all your data types are known by the Qt MetaSystem";
156 params << QVariant(argTypes[i], _a[i+1]);
159 if (proxy()->_restrictMessageTarget) {
160 for (auto peer : proxy()->_restrictedTargets) {
162 proxy()->dispatch(peer, RpcCall(signal.signature, params));
165 proxy()->dispatch(RpcCall(signal.signature, params));
167 _id -= _slots.count();
173 // ==================================================
175 // ==================================================
176 SignalProxy::SignalProxy(QObject *parent)
179 setProxyMode(Client);
184 SignalProxy::SignalProxy(ProxyMode mode, QObject *parent)
192 SignalProxy::~SignalProxy()
194 QHash<QByteArray, ObjectId>::iterator classIter = _syncSlave.begin();
195 while (classIter != _syncSlave.end()) {
196 ObjectId::iterator objIter = classIter->begin();
197 while (objIter != classIter->end()) {
198 SyncableObject *obj = objIter.value();
199 objIter = classIter->erase(objIter);
200 obj->stopSynchronize(this);
210 void SignalProxy::setProxyMode(ProxyMode mode)
212 if (!_peerMap.empty()) {
213 qWarning() << Q_FUNC_INFO << "Cannot change proxy mode while connected";
224 thread_local SignalProxy *SignalProxy::_current;
227 void SignalProxy::init()
229 _heartBeatInterval = 0;
230 _maxHeartBeatCount = 0;
231 _signalRelay = new SignalRelay(this);
232 setHeartBeatInterval(30);
233 setMaxHeartBeatCount(2);
240 void SignalProxy::initServer()
245 void SignalProxy::initClient()
247 attachSlot("__objectRenamed__", this, SLOT(objectRenamed(QByteArray,QString,QString)));
251 void SignalProxy::setHeartBeatInterval(int secs)
253 if (_heartBeatInterval != secs) {
254 _heartBeatInterval = secs;
255 emit heartBeatIntervalChanged(secs);
260 void SignalProxy::setMaxHeartBeatCount(int max)
262 if (_maxHeartBeatCount != max) {
263 _maxHeartBeatCount = max;
264 emit maxHeartBeatCountChanged(max);
269 bool SignalProxy::addPeer(Peer *peer)
274 if (_peerMap.values().contains(peer))
277 if (!peer->isOpen()) {
278 qWarning("SignalProxy: peer needs to be open!");
282 if (proxyMode() == Client) {
283 if (!_peerMap.isEmpty()) {
284 qWarning("SignalProxy: only one peer allowed in client mode!");
287 connect(peer, SIGNAL(lagUpdated(int)), SIGNAL(lagUpdated(int)));
290 connect(peer, SIGNAL(disconnected()), SLOT(removePeerBySender()));
291 connect(peer, SIGNAL(secureStateChanged(bool)), SLOT(updateSecureState()));
294 peer->setParent(this);
296 if (peer->id() < 0) {
297 peer->setId(nextPeerId());
298 peer->setConnectedSince(QDateTime::currentDateTimeUtc());
301 _peerMap[peer->id()] = peer;
303 peer->setSignalProxy(this);
305 if (peerCount() == 1)
313 void SignalProxy::removeAllPeers()
315 Q_ASSERT(proxyMode() == Server || peerCount() <= 1);
316 // wee need to copy that list since we modify it in the loop
317 QList<Peer *> peers = _peerMap.values();
318 for (auto peer : peers) {
324 void SignalProxy::removePeer(Peer *peer)
327 qWarning() << Q_FUNC_INFO << "Trying to remove a null peer!";
331 if (_peerMap.isEmpty()) {
332 qWarning() << "SignalProxy::removePeer(): No peers in use!";
336 if (!_peerMap.values().contains(peer)) {
337 qWarning() << "SignalProxy: unknown Peer" << peer;
341 disconnect(peer, 0, this, 0);
342 peer->setSignalProxy(0);
344 _peerMap.remove(peer->id());
345 emit peerRemoved(peer);
347 if (peer->parent() == this)
352 if (_peerMap.isEmpty())
357 void SignalProxy::removePeerBySender()
359 removePeer(qobject_cast<Peer *>(sender()));
363 void SignalProxy::renameObject(const SyncableObject *obj, const QString &newname, const QString &oldname)
365 if (proxyMode() == Client)
368 const QMetaObject *meta = obj->syncMetaObject();
369 const QByteArray className(meta->className());
370 objectRenamed(className, newname, oldname);
372 dispatch(RpcCall("__objectRenamed__", QVariantList() << className << newname << oldname));
376 void SignalProxy::objectRenamed(const QByteArray &classname, const QString &newname, const QString &oldname)
378 if (_syncSlave.contains(classname) && _syncSlave[classname].contains(oldname) && oldname != newname) {
379 SyncableObject *obj = _syncSlave[classname][newname] = _syncSlave[classname].take(oldname);
385 const QMetaObject *SignalProxy::metaObject(const QObject *obj)
387 if (const SyncableObject *syncObject = qobject_cast<const SyncableObject *>(obj))
388 return syncObject->syncMetaObject();
390 return obj->metaObject();
394 SignalProxy::ExtendedMetaObject *SignalProxy::extendedMetaObject(const QMetaObject *meta) const
396 if (_extendedMetaObjects.contains(meta))
397 return _extendedMetaObjects[meta];
403 SignalProxy::ExtendedMetaObject *SignalProxy::createExtendedMetaObject(const QMetaObject *meta, bool checkConflicts)
405 if (!_extendedMetaObjects.contains(meta)) {
406 _extendedMetaObjects[meta] = new ExtendedMetaObject(meta, checkConflicts);
408 return _extendedMetaObjects[meta];
412 bool SignalProxy::attachSignal(QObject *sender, const char *signal, const QByteArray &sigName)
414 const QMetaObject *meta = sender->metaObject();
415 QByteArray sig(meta->normalizedSignature(signal).mid(1));
416 int methodId = meta->indexOfMethod(sig.constData());
417 if (methodId == -1 || meta->method(methodId).methodType() != QMetaMethod::Signal) {
418 qWarning() << "SignalProxy::attachSignal(): No such signal" << signal;
422 createExtendedMetaObject(meta);
423 _signalRelay->attachSignal(sender, methodId, sigName);
425 disconnect(sender, SIGNAL(destroyed(QObject *)), this, SLOT(detachObject(QObject *)));
426 connect(sender, SIGNAL(destroyed(QObject *)), this, SLOT(detachObject(QObject *)));
431 bool SignalProxy::attachSlot(const QByteArray &sigName, QObject *recv, const char *slot)
433 const QMetaObject *meta = recv->metaObject();
434 int methodId = meta->indexOfMethod(meta->normalizedSignature(slot).mid(1));
435 if (methodId == -1 || meta->method(methodId).methodType() == QMetaMethod::Method) {
436 qWarning() << "SignalProxy::attachSlot(): No such slot" << slot;
440 createExtendedMetaObject(meta);
442 QByteArray funcName = QMetaObject::normalizedSignature(sigName.constData());
443 _attachedSlots.insert(funcName, qMakePair(recv, methodId));
445 disconnect(recv, SIGNAL(destroyed(QObject *)), this, SLOT(detachObject(QObject *)));
446 connect(recv, SIGNAL(destroyed(QObject *)), this, SLOT(detachObject(QObject *)));
451 void SignalProxy::synchronize(SyncableObject *obj)
453 createExtendedMetaObject(obj, true);
455 // attaching as slave to receive sync Calls
456 QByteArray className(obj->syncMetaObject()->className());
457 _syncSlave[className][obj->objectName()] = obj;
459 if (proxyMode() == Server) {
460 obj->setInitialized();
461 emit objectInitialized(obj);
464 if (obj->isInitialized())
465 emit objectInitialized(obj);
470 obj->synchronize(this);
474 void SignalProxy::detachObject(QObject *obj)
481 void SignalProxy::detachSignals(QObject *sender)
483 _signalRelay->detachSignal(sender);
487 void SignalProxy::detachSlots(QObject *receiver)
489 SlotHash::iterator slotIter = _attachedSlots.begin();
490 while (slotIter != _attachedSlots.end()) {
491 if (slotIter.value().first == receiver) {
492 slotIter = _attachedSlots.erase(slotIter);
500 void SignalProxy::stopSynchronize(SyncableObject *obj)
502 // we can't use a className here, since it might be effed up, if we receive the call as a result of a decon
503 // gladly the objectName() is still valid. So we have only to iterate over the classes not each instance! *sigh*
504 QHash<QByteArray, ObjectId>::iterator classIter = _syncSlave.begin();
505 while (classIter != _syncSlave.end()) {
506 if (classIter->contains(obj->objectName()) && classIter.value()[obj->objectName()] == obj) {
507 classIter->remove(obj->objectName());
512 obj->stopSynchronize(this);
517 void SignalProxy::dispatch(const T &protoMessage)
519 for (auto peer : _peerMap.values()) {
523 peer->dispatch(protoMessage);
525 QCoreApplication::postEvent(this, new ::RemovePeerEvent(peer));
527 _targetPeer = nullptr;
532 void SignalProxy::dispatch(Peer *peer, const T &protoMessage)
536 if (peer && peer->isOpen())
537 peer->dispatch(protoMessage);
539 QCoreApplication::postEvent(this, new ::RemovePeerEvent(peer));
541 _targetPeer = nullptr;
545 void SignalProxy::handle(Peer *peer, const SyncMessage &syncMessage)
547 if (!_syncSlave.contains(syncMessage.className) || !_syncSlave[syncMessage.className].contains(syncMessage.objectName)) {
548 qWarning() << QString("no registered receiver for sync call: %1::%2 (objectName=\"%3\"). Params are:").arg(syncMessage.className, syncMessage.slotName, syncMessage.objectName)
549 << syncMessage.params;
553 SyncableObject *receiver = _syncSlave[syncMessage.className][syncMessage.objectName];
554 ExtendedMetaObject *eMeta = extendedMetaObject(receiver);
555 if (!eMeta->slotMap().contains(syncMessage.slotName)) {
556 qWarning() << QString("no matching slot for sync call: %1::%2 (objectName=\"%3\"). Params are:").arg(syncMessage.className, syncMessage.slotName, syncMessage.objectName)
557 << syncMessage.params;
561 int slotId = eMeta->slotMap()[syncMessage.slotName];
562 if (proxyMode() != eMeta->receiverMode(slotId)) {
563 qWarning("SignalProxy::handleSync(): invokeMethod for \"%s\" failed. Wrong ProxyMode!", eMeta->methodName(slotId).constData());
567 // We can no longer construct a QVariant from QMetaType::Void
568 QVariant returnValue;
569 int returnType = eMeta->returnType(slotId);
570 if (returnType != QMetaType::Void)
571 returnValue = QVariant(static_cast<QVariant::Type>(returnType));
573 if (!invokeSlot(receiver, slotId, syncMessage.params, returnValue, peer)) {
574 qWarning("SignalProxy::handleSync(): invokeMethod for \"%s\" failed ", eMeta->methodName(slotId).constData());
578 if (returnValue.type() != QVariant::Invalid && eMeta->receiveMap().contains(slotId)) {
579 int receiverId = eMeta->receiveMap()[slotId];
580 QVariantList returnParams;
581 if (eMeta->argTypes(receiverId).count() > 1)
582 returnParams << syncMessage.params;
583 returnParams << returnValue;
585 peer->dispatch(SyncMessage(syncMessage.className, syncMessage.objectName, eMeta->methodName(receiverId), returnParams));
586 _targetPeer = nullptr;
589 // send emit update signal
590 invokeSlot(receiver, eMeta->updatedRemotelyId());
594 void SignalProxy::handle(Peer *peer, const InitRequest &initRequest)
596 if (!_syncSlave.contains(initRequest.className)) {
597 qWarning() << "SignalProxy::handleInitRequest() received initRequest for unregistered Class:"
598 << initRequest.className;
602 if (!_syncSlave[initRequest.className].contains(initRequest.objectName)) {
603 qWarning() << "SignalProxy::handleInitRequest() received initRequest for unregistered Object:"
604 << initRequest.className << initRequest.objectName;
608 SyncableObject *obj = _syncSlave[initRequest.className][initRequest.objectName];
610 peer->dispatch(InitData(initRequest.className, initRequest.objectName, initData(obj)));
611 _targetPeer = nullptr;
615 void SignalProxy::handle(Peer *peer, const InitData &initData)
619 if (!_syncSlave.contains(initData.className)) {
620 qWarning() << "SignalProxy::handleInitData() received initData for unregistered Class:"
621 << initData.className;
625 if (!_syncSlave[initData.className].contains(initData.objectName)) {
626 qWarning() << "SignalProxy::handleInitData() received initData for unregistered Object:"
627 << initData.className << initData.objectName;
631 SyncableObject *obj = _syncSlave[initData.className][initData.objectName];
632 setInitData(obj, initData.initData);
636 void SignalProxy::handle(Peer *peer, const RpcCall &rpcCall)
640 SlotHash::const_iterator slot = _attachedSlots.constFind(rpcCall.slotName);
641 while (slot != _attachedSlots.constEnd() && slot.key() == rpcCall.slotName) {
642 receiver = (*slot).first;
643 methodId = (*slot).second;
644 if (!invokeSlot(receiver, methodId, rpcCall.params, peer)) {
645 ExtendedMetaObject *eMeta = extendedMetaObject(receiver);
646 qWarning("SignalProxy::handleSignal(): invokeMethod for \"%s\" failed ", eMeta->methodName(methodId).constData());
653 bool SignalProxy::invokeSlot(QObject *receiver, int methodId, const QVariantList ¶ms, QVariant &returnValue, Peer *peer)
655 ExtendedMetaObject *eMeta = extendedMetaObject(receiver);
656 const QList<int> args = eMeta->argTypes(methodId);
657 const int numArgs = params.count() < args.count()
661 if (eMeta->minArgCount(methodId) > params.count()) {
662 qWarning() << "SignalProxy::invokeSlot(): not enough params to invoke" << eMeta->methodName(methodId);
666 void *_a[] = { 0, // return type...
667 0, 0, 0, 0, 0, // and 10 args - that's the max size qt can handle with signals and slots
670 // check for argument compatibility and build params array
671 for (int i = 0; i < numArgs; i++) {
672 if (!params[i].isValid()) {
673 #if QT_VERSION >= 0x050000
674 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());
676 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());
678 qWarning() << " - make sure all your data types are known by the Qt MetaSystem";
681 if (args[i] != QMetaType::type(params[i].typeName())) {
682 qWarning() << "SignalProxy::invokeSlot(): incompatible param types to invoke" << eMeta->methodName(methodId);
686 _a[i+1] = const_cast<void *>(params[i].constData());
689 if (returnValue.type() != QVariant::Invalid)
690 _a[0] = const_cast<void *>(returnValue.constData());
692 Qt::ConnectionType type = QThread::currentThread() == receiver->thread()
693 ? Qt::DirectConnection
694 : Qt::QueuedConnection;
696 if (type == Qt::DirectConnection) {
698 auto result = receiver->qt_metacall(QMetaObject::InvokeMetaMethod, methodId, _a) < 0;
699 _sourcePeer = nullptr;
702 qWarning() << "Queued Connections are not implemented yet";
703 // note to self: qmetaobject.cpp:990 ff
709 bool SignalProxy::invokeSlot(QObject *receiver, int methodId, const QVariantList ¶ms, Peer *peer)
712 return invokeSlot(receiver, methodId, params, ret, peer);
716 void SignalProxy::requestInit(SyncableObject *obj)
718 if (proxyMode() == Server || obj->isInitialized())
721 dispatch(InitRequest(obj->syncMetaObject()->className(), obj->objectName()));
725 QVariantMap SignalProxy::initData(SyncableObject *obj) const
727 return obj->toVariantMap();
731 void SignalProxy::setInitData(SyncableObject *obj, const QVariantMap &properties)
733 if (obj->isInitialized())
735 obj->fromVariantMap(properties);
736 obj->setInitialized();
737 emit objectInitialized(obj);
738 invokeSlot(obj, extendedMetaObject(obj)->updatedRemotelyId());
742 void SignalProxy::customEvent(QEvent *event)
744 switch ((int)event->type()) {
745 case RemovePeerEvent: {
746 ::RemovePeerEvent *e = static_cast< ::RemovePeerEvent *>(event);
753 qWarning() << Q_FUNC_INFO << "Received unknown custom event:" << event->type();
759 void SignalProxy::sync_call__(const SyncableObject *obj, SignalProxy::ProxyMode modeType, const char *funcname, va_list ap)
761 // qDebug() << obj << modeType << "(" << _proxyMode << ")" << funcname;
762 if (modeType != _proxyMode)
765 ExtendedMetaObject *eMeta = extendedMetaObject(obj);
769 const QList<int> &argTypes = eMeta->argTypes(eMeta->methodId(QByteArray(funcname)));
771 for (int i = 0; i < argTypes.size(); i++) {
772 if (argTypes[i] == 0) {
773 qWarning() << Q_FUNC_INFO << "received invalid data for argument number" << i << "of signal" << QString("%1::%2").arg(eMeta->metaObject()->className()).arg(funcname);
774 qWarning() << " - make sure all your data types are known by the Qt MetaSystem";
777 params << QVariant(argTypes[i], va_arg(ap, void *));
780 if (_restrictMessageTarget) {
781 for (auto peer : _restrictedTargets) {
783 dispatch(peer, SyncMessage(eMeta->metaObject()->className(), obj->objectName(), QByteArray(funcname), params));
786 dispatch(SyncMessage(eMeta->metaObject()->className(), obj->objectName(), QByteArray(funcname), params));
790 void SignalProxy::disconnectDevice(QIODevice *dev, const QString &reason)
792 if (!reason.isEmpty())
793 qWarning() << qPrintable(reason);
794 QAbstractSocket *sock = qobject_cast<QAbstractSocket *>(dev);
796 qWarning() << qPrintable(tr("Disconnecting")) << qPrintable(sock->peerAddress().toString());
801 void SignalProxy::dumpProxyStats()
804 if (proxyMode() == Server)
810 foreach(ObjectId oid, _syncSlave.values())
811 slaveCount += oid.count();
814 qDebug() << " Proxy Mode:" << mode;
815 qDebug() << " attached Slots:" << _attachedSlots.count();
816 qDebug() << " number of synced Slaves:" << slaveCount;
817 qDebug() << "number of Classes cached:" << _extendedMetaObjects.count();
821 void SignalProxy::updateSecureState()
823 bool wasSecure = _secure;
825 _secure = !_peerMap.isEmpty();
826 for (auto peer : _peerMap.values()) {
827 _secure &= peer->isSecure();
830 if (wasSecure != _secure)
831 emit secureStateChanged(_secure);
834 QVariantList SignalProxy::peerData() {
836 for (auto peer : _peerMap.values()) {
838 data["id"] = peer->id();
839 data["clientVersion"] = peer->clientVersion();
840 // We explicitly rename this, as, due to the Debian reproducability changes, buildDate isn’t actually the build
841 // date anymore, but on newer clients the date of the last git commit
842 data["clientVersionDate"] = peer->buildDate();
843 data["remoteAddress"] = peer->address();
844 data["connectedSince"] = peer->connectedSince();
845 data["secure"] = peer->isSecure();
851 Peer *SignalProxy::peerById(int peerId) {
852 return _peerMap[peerId];
855 void SignalProxy::restrictTargetPeers(QSet<Peer*> peers, std::function<void()> closure)
857 auto previousRestrictMessageTarget = _restrictMessageTarget;
858 auto previousRestrictedTargets = _restrictedTargets;
859 _restrictMessageTarget = true;
860 _restrictedTargets = peers;
864 _restrictMessageTarget = previousRestrictMessageTarget;
865 _restrictedTargets = previousRestrictedTargets;
868 Peer *SignalProxy::sourcePeer() {
872 void SignalProxy::setSourcePeer(Peer *sourcePeer) {
873 _sourcePeer = sourcePeer;
876 Peer *SignalProxy::targetPeer() {
880 void SignalProxy::setTargetPeer(Peer *targetPeer) {
881 _targetPeer = targetPeer;
884 // ==================================================
885 // ExtendedMetaObject
886 // ==================================================
887 SignalProxy::ExtendedMetaObject::ExtendedMetaObject(const QMetaObject *meta, bool checkConflicts)
889 _updatedRemotelyId(_meta->indexOfSignal("updatedRemotely()"))
891 for (int i = 0; i < _meta->methodCount(); i++) {
892 if (_meta->method(i).methodType() != QMetaMethod::Slot)
895 #if QT_VERSION >= 0x050000
896 if (_meta->method(i).methodSignature().contains('*'))
898 if (QByteArray(_meta->method(i).signature()).contains('*'))
900 continue; // skip methods with ptr params
902 QByteArray method = methodName(_meta->method(i));
903 if (method.startsWith("init"))
904 continue; // skip initializers
906 if (_methodIds.contains(method)) {
907 /* funny... moc creates for methods containing default parameters multiple metaMethod with separate methodIds.
908 we don't care... we just need the full fledged version
910 const QMetaMethod ¤t = _meta->method(_methodIds[method]);
911 const QMetaMethod &candidate = _meta->method(i);
912 if (current.parameterTypes().count() > candidate.parameterTypes().count()) {
913 int minCount = candidate.parameterTypes().count();
914 QList<QByteArray> commonParams = current.parameterTypes().mid(0, minCount);
915 if (commonParams == candidate.parameterTypes())
916 continue; // we already got the full featured version
919 int minCount = current.parameterTypes().count();
920 QList<QByteArray> commonParams = candidate.parameterTypes().mid(0, minCount);
921 if (commonParams == current.parameterTypes()) {
922 _methodIds[method] = i; // use the new one
926 if (checkConflicts) {
927 qWarning() << "class" << meta->className() << "contains overloaded methods which is currently not supported!";
928 #if QT_VERSION >= 0x050000
929 qWarning() << " - " << _meta->method(i).methodSignature() << "conflicts with" << _meta->method(_methodIds[method]).methodSignature();
931 qWarning() << " - " << _meta->method(i).signature() << "conflicts with" << _meta->method(_methodIds[method]).signature();
936 _methodIds[method] = i;
941 const SignalProxy::ExtendedMetaObject::MethodDescriptor &SignalProxy::ExtendedMetaObject::methodDescriptor(int methodId)
943 if (!_methods.contains(methodId)) {
944 _methods[methodId] = MethodDescriptor(_meta->method(methodId));
946 return _methods[methodId];
950 const QHash<int, int> &SignalProxy::ExtendedMetaObject::receiveMap()
952 if (_receiveMap.isEmpty()) {
953 QHash<int, int> receiveMap;
955 QMetaMethod requestSlot;
956 QByteArray returnTypeName;
957 QByteArray signature;
958 QByteArray methodName;
962 const int methodCount = _meta->methodCount();
963 for (int i = 0; i < methodCount; i++) {
964 requestSlot = _meta->method(i);
965 if (requestSlot.methodType() != QMetaMethod::Slot)
968 returnTypeName = requestSlot.typeName();
969 if (QMetaType::Void == (QMetaType::Type)returnType(i))
972 #if QT_VERSION >= 0x050000
973 signature = requestSlot.methodSignature();
975 signature = QByteArray(requestSlot.signature());
977 if (!signature.startsWith("request"))
980 paramsPos = signature.indexOf('(');
984 methodName = signature.left(paramsPos);
985 params = signature.mid(paramsPos);
987 methodName = methodName.replace("request", "receive");
988 params = params.left(params.count() - 1) + ", " + returnTypeName + ")";
990 signature = QMetaObject::normalizedSignature(methodName + params);
991 receiverId = _meta->indexOfSlot(signature);
993 if (receiverId == -1) {
994 signature = QMetaObject::normalizedSignature(methodName + "(" + returnTypeName + ")");
995 receiverId = _meta->indexOfSlot(signature);
998 if (receiverId != -1) {
999 receiveMap[i] = receiverId;
1002 _receiveMap = receiveMap;
1008 QByteArray SignalProxy::ExtendedMetaObject::methodName(const QMetaMethod &method)
1010 #if QT_VERSION >= 0x050000
1011 QByteArray sig(method.methodSignature());
1013 QByteArray sig(method.signature());
1015 return sig.left(sig.indexOf("("));
1019 QString SignalProxy::ExtendedMetaObject::methodBaseName(const QMetaMethod &method)
1021 #if QT_VERSION >= 0x050000
1022 QString methodname = QString(method.methodSignature()).section("(", 0, 0);
1024 QString methodname = QString(method.signature()).section("(", 0, 0);
1027 // determine where we have to chop:
1029 if (method.methodType() == QMetaMethod::Slot) {
1030 // we take evertyhing from the first uppercase char if it's slot
1031 upperCharPos = methodname.indexOf(QRegExp("[A-Z]"));
1032 if (upperCharPos == -1)
1034 methodname = methodname.mid(upperCharPos);
1037 // and if it's a signal we discard everything from the last uppercase char
1038 upperCharPos = methodname.lastIndexOf(QRegExp("[A-Z]"));
1039 if (upperCharPos == -1)
1041 methodname = methodname.left(upperCharPos);
1044 methodname[0] = methodname[0].toUpper();
1050 SignalProxy::ExtendedMetaObject::MethodDescriptor::MethodDescriptor(const QMetaMethod &method)
1051 : _methodName(SignalProxy::ExtendedMetaObject::methodName(method)),
1052 _returnType(QMetaType::type(method.typeName()))
1054 // determine argTypes
1055 QList<QByteArray> paramTypes = method.parameterTypes();
1056 QList<int> argTypes;
1057 for (int i = 0; i < paramTypes.count(); i++) {
1058 argTypes.append(QMetaType::type(paramTypes[i]));
1060 _argTypes = argTypes;
1062 // determine minArgCount
1063 #if QT_VERSION >= 0x050000
1064 QString signature(method.methodSignature());
1066 QString signature(method.signature());
1068 _minArgCount = method.parameterTypes().count() - signature.count("=");
1070 _receiverMode = (_methodName.startsWith("request"))
1071 ? SignalProxy::Server
1072 : SignalProxy::Client;