1 /***************************************************************************
2 * Copyright (C) 2005-08 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 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
21 #include "signalproxy.h"
25 #include <QAbstractSocket>
31 #include <QMetaMethod>
32 #include <QMetaProperty>
36 #include "syncableobject.h"
39 class SignalRelay: public QObject {
41 /* Q_OBJECT is not necessary or even allowed, because we implement
42 qt_metacall ourselves (and don't use any other features of the meta
46 SignalRelay(SignalProxy* parent, QObject* source);
47 int qt_metacall(QMetaObject::Call _c, int _id, void **_a);
49 void attachSignal(int methodId, const QByteArray &func);
51 void setSynchronize(bool);
52 bool synchronize() const;
57 bool isSyncMethod(int i);
61 QMultiHash<int, QByteArray> sigNames;
65 SignalRelay::SignalRelay(SignalProxy* parent, QObject* source)
71 QObject::connect(source, SIGNAL(destroyed()), parent, SLOT(detachSender()));
74 int SignalRelay::qt_metacall(QMetaObject::Call _c, int _id, void **_a) {
75 _id = QObject::qt_metacall(_c, _id, _a);
78 if(_c == QMetaObject::InvokeMetaMethod) {
79 if(sigNames.contains(_id) || synchronize()) {
80 const QList<int> &argTypes = proxy->argTypes(caller, _id);
82 int n = argTypes.size();
83 for(int i=0; i<n; i++) {
84 if(argTypes[i] == 0) {
85 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());
86 qWarning() << " - make sure all your data types are known by the Qt MetaSystem";
89 params.append(QVariant(argTypes[i], _a[i+1]));
91 QMultiHash<int, QByteArray>::const_iterator funcIter = sigNames.constFind(_id);
92 while(funcIter != sigNames.constEnd() && funcIter.key() == _id) {
93 proxy->dispatchSignal(SignalProxy::RpcCall, QVariantList() << funcIter.value() << params);
97 // dispatch Sync Signal if necessary
98 QByteArray signature(caller->metaObject()->method(_id).signature());
99 if(synchronize() && proxy->syncMap(qobject_cast<SyncableObject *>(caller)).contains(signature)) {
100 //qDebug() << "__SYNC__ >>>"
101 // << caller->metaObject()->className()
102 // << caller->objectName()
105 // params.prepend(QVariant(_id));
106 params.prepend(signature);
107 params.prepend(caller->objectName());
108 params.prepend(caller->metaObject()->className());
109 proxy->dispatchSignal(SignalProxy::Sync, params);
112 _id -= QObject::staticMetaObject.methodCount();
117 void SignalRelay::setSynchronize(bool sync) {
118 const QMetaObject *meta = caller->metaObject();
121 for(int i = 0; i < meta->methodCount(); i++ ) {
123 QMetaObject::connect(caller, i, this, QObject::staticMetaObject.methodCount() + i);
125 } else if (_sync && !sync) {
127 for(int i = 0; i < meta->methodCount(); i++ ) {
129 QMetaObject::disconnect(caller, i, this, QObject::staticMetaObject.methodCount() + i);
135 bool SignalRelay::isSyncMethod(int i) {
136 QByteArray signature = caller->metaObject()->method(i).signature();
137 if(!proxy->syncMap(qobject_cast<SyncableObject *>(caller)).contains(signature))
140 if(proxy->proxyMode() == SignalProxy::Server && !signature.contains("Requested"))
143 if(proxy->proxyMode() == SignalProxy::Client && signature.contains("Requested"))
149 bool SignalRelay::synchronize() const {
153 int SignalRelay::sigCount() const {
154 // only for debuging purpose
155 return sigNames.count();
158 void SignalRelay::attachSignal(int methodId, const QByteArray &func) {
159 // we ride without safetybelts here... all checking for valid method etc pp has to be done by the caller
160 // all connected methodIds are offset by the standard methodCount of QObject
161 if(!sigNames.contains(methodId))
162 QMetaObject::connect(caller, methodId, this, QObject::staticMetaObject.methodCount() + methodId);
165 if(!func.isEmpty()) {
166 fn = QMetaObject::normalizedSignature(func);
168 fn = QByteArray("2") + caller->metaObject()->method(methodId).signature();
170 sigNames.insert(methodId, fn);
172 // ====================
174 // ====================
177 // ====================
179 // ====================
180 SignalProxy::SignalProxy(QObject* parent)
183 setProxyMode(Client);
186 SignalProxy::SignalProxy(ProxyMode mode, QObject* parent)
192 SignalProxy::SignalProxy(ProxyMode mode, QIODevice* device, QObject* parent)
199 SignalProxy::~SignalProxy() {
200 QList<QObject*> senders = _relayHash.keys();
201 foreach(QObject* sender, senders)
202 detachObject(sender);
204 // close peer connections
205 foreach(QIODevice *device, _peerByteCount.keys()) {
211 void SignalProxy::setProxyMode(ProxyMode mode) {
212 foreach(QIODevice* peer, _peerByteCount.keys()) {
214 qWarning() << "SignalProxy: Cannot change proxy mode while connected";
225 SignalProxy::ProxyMode SignalProxy::proxyMode() const {
229 void SignalProxy::initServer() {
230 disconnect(&_heartBeatTimer, 0, this, 0);
231 _heartBeatTimer.stop();
234 void SignalProxy::initClient() {
235 attachSlot("__objectRenamed__", this, SLOT(objectRenamed(QByteArray, QString, QString)));
236 connect(&_heartBeatTimer, SIGNAL(timeout()),
237 this, SLOT(sendHeartBeat()));
238 _heartBeatTimer.start(60 * 1000); // msecs: one beep per minute
241 bool SignalProxy::addPeer(QIODevice* iodev) {
245 if(_peerByteCount.contains(iodev))
248 if(proxyMode() == Client && !_peerByteCount.isEmpty()) {
249 qWarning("SignalProxy: only one peer allowed in client mode!");
254 qWarning("SignalProxy::the device you passed is not open!");
256 connect(iodev, SIGNAL(disconnected()), this, SLOT(removePeerBySender()));
257 connect(iodev, SIGNAL(readyRead()), this, SLOT(dataAvailable()));
259 QAbstractSocket* sock = qobject_cast<QAbstractSocket*>(iodev);
261 connect(sock, SIGNAL(disconnected()), this, SLOT(removePeerBySender()));
264 _peerByteCount[iodev] = 0;
266 if(_peerByteCount.count() == 1)
272 void SignalProxy::removePeerBySender() {
273 // OK we're brutal here... but since it's a private slot we know what we've got connected to it...
274 QIODevice *ioDev = (QIODevice *)(sender());
276 qDebug() << "Client disconnected.";
279 void SignalProxy::objectRenamed(QString oldname, QString newname) {
280 const QMetaObject *meta = sender()->metaObject();
281 const QByteArray className(meta->className());
282 objectRenamed(className, oldname, newname);
284 if(proxyMode() == Client)
288 params << "__objectRenamed__" << className << oldname << newname;
289 dispatchSignal(RpcCall, params);
292 void SignalProxy::objectRenamed(QByteArray classname, QString oldname, QString newname) {
293 if(_syncSlave.contains(classname) && _syncSlave[classname].contains(oldname) && oldname != newname) {
294 SyncableObject *obj = _syncSlave[classname][newname] = _syncSlave[classname].take(oldname);
295 if(!obj->isInitialized())
301 void SignalProxy::removePeer(QIODevice* iodev) {
302 if(_peerByteCount.isEmpty()) {
303 qWarning() << "SignalProxy: No peers in use!";
307 if(proxyMode() == Server && !iodev) {
309 QList<QIODevice *> peers = _peerByteCount.keys();
310 foreach(QIODevice *peer, peers)
314 if(proxyMode() != Server && !iodev)
315 iodev = _peerByteCount.keys().first();
319 if(!_peerByteCount.contains(iodev)) {
320 qWarning() << "SignalProxy: unknown QIODevice" << iodev;
327 if(readDataFromDevice(iodev, _peerByteCount[iodev], var))
328 receivePeerSignal(iodev, var);
332 _peerByteCount.remove(iodev);
334 disconnect(iodev, 0, this, 0);
335 emit peerRemoved(iodev);
337 if(_peerByteCount.isEmpty())
341 void SignalProxy::setArgTypes(QObject* obj, int methodId) {
342 const QMetaObject *meta = obj->metaObject();
343 QList<QByteArray> p = meta->method(methodId).parameterTypes();
346 for(int i=0; i<ct; i++)
347 argTypes.append(QMetaType::type(p.value(i)));
349 Q_ASSERT(!_classInfo[meta]->argTypes.contains(methodId));
350 _classInfo[meta]->argTypes[methodId] = argTypes;
353 const QList<int> &SignalProxy::argTypes(QObject *obj, int methodId) {
354 Q_ASSERT(_classInfo.contains(obj->metaObject()));
355 if(!_classInfo[obj->metaObject()]->argTypes.contains(methodId))
356 setArgTypes(obj, methodId);
357 return _classInfo[obj->metaObject()]->argTypes[methodId];
360 void SignalProxy::setMinArgCount(QObject *obj, int methodId) {
361 const QMetaObject *meta = obj->metaObject();
362 QString signature(meta->method(methodId).signature());
363 int minCount = meta->method(methodId).parameterTypes().count() - signature.count("=");
364 Q_ASSERT(!_classInfo[meta]->minArgCount.contains(methodId));
365 _classInfo[meta]->minArgCount[methodId] = minCount;
368 const int &SignalProxy::minArgCount(QObject *obj, int methodId) {
369 Q_ASSERT(_classInfo.contains(obj->metaObject()));
370 if(!_classInfo[obj->metaObject()]->minArgCount.contains(methodId))
371 setMinArgCount(obj, methodId);
372 return _classInfo[obj->metaObject()]->minArgCount[methodId];
375 void SignalProxy::setMethodName(QObject *obj, int methodId) {
376 const QMetaObject *meta = obj->metaObject();
377 QByteArray method(::methodName(meta->method(methodId)));
378 Q_ASSERT(!_classInfo[meta]->methodNames.contains(methodId));
379 _classInfo[meta]->methodNames[methodId] = method;
382 const QByteArray &SignalProxy::methodName(QObject *obj, int methodId) {
383 Q_ASSERT(_classInfo.contains(obj->metaObject()));
384 if(!_classInfo[obj->metaObject()]->methodNames.contains(methodId))
385 setMethodName(obj, methodId);
386 return _classInfo[obj->metaObject()]->methodNames[methodId];
390 void SignalProxy::setSyncMap(SyncableObject *obj) {
391 const QMetaObject *meta = obj->metaObject();
392 QHash<QByteArray, int> syncMap;
394 QList<int> slotIndexes;
395 for(int i = 0; i < meta->methodCount(); i++) {
396 if(meta->method(i).methodType() == QMetaMethod::Slot)
400 QMetaMethod signal, slot;
402 for(int signalIdx = 0; signalIdx < meta->methodCount(); signalIdx++) {
403 signal = meta->method(signalIdx);
404 if(signal.methodType() != QMetaMethod::Signal)
408 foreach(int slotIdx, slotIndexes) {
409 slot = meta->method(slotIdx);
410 if(methodsMatch(signal, slot)) {
416 slotIndexes.removeAt(slotIndexes.indexOf(matchIdx));
417 syncMap[QByteArray(signal.signature())] = matchIdx;
421 Q_ASSERT(_classInfo[meta]->syncMap.isEmpty());
422 _classInfo[meta]->syncMap = syncMap;
425 const QHash<QByteArray,int> &SignalProxy::syncMap(SyncableObject *obj) {
426 Q_ASSERT(_classInfo.contains(obj->metaObject()));
427 if(_classInfo[obj->metaObject()]->syncMap.isEmpty())
429 return _classInfo[obj->metaObject()]->syncMap;
432 void SignalProxy::setUpdatedRemotelyId(QObject *obj) {
433 const QMetaObject *meta = obj->metaObject();
434 Q_ASSERT(_classInfo.contains(meta));
435 _classInfo[meta]->updatedRemotelyId = meta->indexOfSignal("updatedRemotely()");
438 int SignalProxy::updatedRemotelyId(SyncableObject *obj) {
439 Q_ASSERT(_classInfo.contains(obj->metaObject()));
440 return _classInfo[obj->metaObject()]->updatedRemotelyId;
443 void SignalProxy::createClassInfo(QObject *obj) {
444 if(_classInfo.contains(obj->metaObject()))
447 ClassInfo *classInfo = new ClassInfo();
448 _classInfo[obj->metaObject()] = classInfo;
449 setUpdatedRemotelyId(obj);
452 bool SignalProxy::attachSignal(QObject* sender, const char* signal, const QByteArray& sigName) {
453 const QMetaObject* meta = sender->metaObject();
454 QByteArray sig(meta->normalizedSignature(signal).mid(1));
455 int methodId = meta->indexOfMethod(sig.constData());
456 if(methodId == -1 || meta->method(methodId).methodType() != QMetaMethod::Signal) {
457 qWarning() << "SignalProxy::attachSignal(): No such signal" << signal;
461 createClassInfo(sender);
464 if(_relayHash.contains(sender))
465 relay = _relayHash[sender];
467 relay = _relayHash[sender] = new SignalRelay(this, sender);
469 relay->attachSignal(methodId, sigName);
475 bool SignalProxy::attachSlot(const QByteArray& sigName, QObject* recv, const char* slot) {
476 const QMetaObject* meta = recv->metaObject();
477 int methodId = meta->indexOfMethod(meta->normalizedSignature(slot).mid(1));
478 if(methodId == -1 || meta->method(methodId).methodType() == QMetaMethod::Method) {
479 qWarning() << "SignalProxy::attachSlot(): No such slot" << slot;
483 createClassInfo(recv);
485 QByteArray funcName = QMetaObject::normalizedSignature(sigName.constData());
486 _attachedSlots.insert(funcName, qMakePair(recv, methodId));
488 QObject::disconnect(recv, SIGNAL(destroyed()), this, SLOT(detachSender()));
489 QObject::connect(recv, SIGNAL(destroyed()), this, SLOT(detachSender()));
493 void SignalProxy::synchronize(SyncableObject *obj) {
494 createClassInfo(obj);
496 // attaching all the Signals
498 if(_relayHash.contains(obj))
499 relay = _relayHash[obj];
501 relay = _relayHash[obj] = new SignalRelay(this, obj);
503 relay->setSynchronize(true);
505 // attaching as slave to receive sync Calls
506 QByteArray className(obj->metaObject()->className());
507 _syncSlave[className][obj->objectName()] = obj;
509 if(proxyMode() == Server) {
510 if(obj->metaObject()->indexOfSignal(QMetaObject::normalizedSignature("renameObject(QString, QString)")) != -1)
511 connect(obj, SIGNAL(renameObject(QString, QString)), this, SLOT(objectRenamed(QString, QString)));
519 void SignalProxy::setInitialized(SyncableObject *obj) {
520 obj->setInitialized();
521 emit objectInitialized(obj);
524 bool SignalProxy::isInitialized(SyncableObject *obj) const {
525 return obj->isInitialized();
528 void SignalProxy::requestInit(SyncableObject *obj) {
529 if(proxyMode() == Server || isInitialized(obj))
533 params << obj->metaObject()->className()
534 << obj->objectName();
535 dispatchSignal(InitRequest, params);
538 void SignalProxy::detachSender() {
539 detachObject(sender());
542 void SignalProxy::detachObject(QObject* obj) {
545 stopSync(static_cast<SyncableObject *>(obj));
548 void SignalProxy::detachSignals(QObject* sender) {
549 if(!_relayHash.contains(sender))
551 _relayHash.take(sender)->deleteLater();
554 void SignalProxy::detachSlots(QObject* receiver) {
555 SlotHash::iterator slotIter = _attachedSlots.begin();
556 while(slotIter != _attachedSlots.end()) {
557 if(slotIter.value().first == receiver) {
558 slotIter = _attachedSlots.erase(slotIter);
564 void SignalProxy::stopSync(SyncableObject* obj) {
565 if(_relayHash.contains(obj))
566 _relayHash[obj]->setSynchronize(false);
568 // we can't use a className here, since it might be effed up, if we receive the call as a result of a decon
569 // gladly the objectName() is still valid. So we have only to iterate over the classes not each instance! *sigh*
570 QHash<QByteArray, ObjectId>::iterator classIter = _syncSlave.begin();
571 while(classIter != _syncSlave.end()) {
572 if(classIter->contains(obj->objectName()) && classIter.value()[obj->objectName()] == obj) {
573 classIter->remove(obj->objectName());
580 void SignalProxy::dispatchSignal(QIODevice *receiver, const RequestType &requestType, const QVariantList ¶ms) {
581 QVariantList packedFunc;
582 packedFunc << (qint16)requestType;
583 packedFunc << params;
584 writeDataToDevice(receiver, QVariant(packedFunc));
587 void SignalProxy::dispatchSignal(const RequestType &requestType, const QVariantList ¶ms) {
588 // yes I know we have a little code duplication here... it's for the sake of performance
589 QVariantList packedFunc;
590 packedFunc << (qint16)requestType;
591 packedFunc << params;
592 foreach(QIODevice* dev, _peerByteCount.keys())
593 writeDataToDevice(dev, QVariant(packedFunc));
596 void SignalProxy::receivePeerSignal(QIODevice *sender, const QVariant &packedFunc) {
597 QVariantList params(packedFunc.toList());
599 if(params.isEmpty()) {
600 qWarning() << "SignalProxy::receivePeerSignal(): received incompatible Data:" << packedFunc;
604 int callType = params.takeFirst().value<int>();
609 qWarning() << "SignalProxy::receivePeerSignal(): received empty RPC-Call";
612 return handleSignal(params.takeFirst().toByteArray(), params);
615 return handleSync(params);
617 return handleInitRequest(sender, params);
619 return handleInitData(sender, params);
623 qWarning() << "SignalProxy::receivePeerSignal(): received undefined CallType" << callType << params;
628 void SignalProxy::handleSync(QVariantList params) {
629 if(params.count() < 3) {
630 qWarning() << "received invalid Sync call" << params;
634 QByteArray className = params.takeFirst().toByteArray();
635 QString objectName = params.takeFirst().toString();
636 QByteArray signal = params.takeFirst().toByteArray();
638 if(!_syncSlave.contains(className) || !_syncSlave[className].contains(objectName)) {
639 qWarning() << QString("no registered receiver for sync call: %1::%2 (objectName=\"%3\"). Params are:").arg(QString(className)).arg(QString(signal)).arg(objectName)
644 SyncableObject *receiver = _syncSlave[className][objectName];
645 if(!syncMap(receiver).contains(signal)) {
646 qWarning() << QString("no matching slot for sync call: %1::%2 (objectName=\"%3\"). Params are:").arg(QString(className)).arg(QString(signal)).arg(objectName)
651 int slotId = syncMap(receiver)[signal];
652 if(!invokeSlot(receiver, slotId, params)) {
653 qWarning("SignalProxy::handleSync(): invokeMethod for \"%s\" failed ", methodName(receiver, slotId).constData());
656 invokeSlot(receiver, updatedRemotelyId(receiver));
659 void SignalProxy::handleInitRequest(QIODevice *sender, const QVariantList ¶ms) {
660 if(params.count() != 2) {
661 qWarning() << "SignalProxy::handleInitRequest() received initRequest with invalid param Count:"
666 QByteArray className(params[0].toByteArray());
667 QString objectName(params[1].toString());
669 if(!_syncSlave.contains(className)) {
670 qWarning() << "SignalProxy::handleInitRequest() received initRequest for unregistered Class:"
675 if(!_syncSlave[className].contains(objectName)) {
676 qWarning() << "SignalProxy::handleInitRequest() received initRequest for unregistered Object:"
677 << className << objectName;
681 SyncableObject *obj = _syncSlave[className][objectName];
683 QVariantList params_;
684 params_ << obj->metaObject()->className()
688 dispatchSignal(sender, InitData, params_);
691 void SignalProxy::handleInitData(QIODevice *sender, const QVariantList ¶ms) {
693 if(params.count() != 3) {
694 qWarning() << "SignalProxy::handleInitData() received initData with invalid param Count:"
699 QByteArray className(params[0].toByteArray());
700 QString objectName(params[1].toString());
701 QVariantMap propertyMap(params[2].toMap());
703 if(!_syncSlave.contains(className)) {
704 qWarning() << "SignalProxy::handleInitData() received initData for unregistered Class:"
709 if(!_syncSlave[className].contains(objectName)) {
710 qWarning() << "SignalProxy::handleInitData() received initData for unregistered Object:"
711 << className << objectName;
715 SyncableObject *obj = _syncSlave[className][objectName];
716 setInitData(obj, propertyMap);
719 void SignalProxy::handleSignal(const QByteArray &funcName, const QVariantList ¶ms) {
722 SlotHash::const_iterator slot = _attachedSlots.constFind(funcName);
723 while(slot != _attachedSlots.constEnd() && slot.key() == funcName) {
724 receiver = (*slot).first;
725 methodId = (*slot).second;
726 if(!invokeSlot(receiver, methodId, params))
727 qWarning("SignalProxy::handleSignal(): invokeMethod for \"%s\" failed ", methodName(receiver, methodId).constData());
732 bool SignalProxy::invokeSlot(QObject *receiver, int methodId, const QVariantList ¶ms) {
733 const QList<int> args = argTypes(receiver, methodId);
734 const int numArgs = params.count() < args.count()
738 if(minArgCount(receiver, methodId) > params.count()) {
739 qWarning() << "SignalProxy::invokeSlot(): not enough params to invoke" << methodName(receiver, methodId);
743 void *_a[] = {0, // return type
744 0, 0, 0, 0 , 0, // and 10 args - that's the max size qt can handle with signals and slots
746 // check for argument compatibility and build params array
747 for(int i = 0; i < numArgs; i++) {
748 if(!params[i].isValid()) {
749 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());
750 qWarning() << " - make sure all your data types are known by the Qt MetaSystem";
753 if(args[i] != QMetaType::type(params[i].typeName())) {
754 qWarning() << "SignalProxy::invokeSlot(): incompatible param types to invoke" << methodName(receiver, methodId);
757 _a[i+1] = const_cast<void *>(params[i].constData());
761 Qt::ConnectionType type = QThread::currentThread() == receiver->thread()
762 ? Qt::DirectConnection
763 : Qt::QueuedConnection;
765 if (type == Qt::DirectConnection) {
766 return receiver->qt_metacall(QMetaObject::InvokeMetaMethod, methodId, _a) < 0;
768 qWarning() << "Queued Connections are not implemented yet";
769 // not to self: qmetaobject.cpp:990 ff
775 void SignalProxy::dataAvailable() {
776 // yet again. it's a private slot. no need for checks.
777 QIODevice* ioDev = qobject_cast<QIODevice* >(sender());
779 while(readDataFromDevice(ioDev, _peerByteCount[ioDev], var))
780 receivePeerSignal(ioDev, var);
783 void SignalProxy::writeDataToDevice(QIODevice *dev, const QVariant &item) {
784 QAbstractSocket* sock = qobject_cast<QAbstractSocket*>(dev);
785 if(!dev->isOpen() || (sock && sock->state()!=QAbstractSocket::ConnectedState)) {
786 qWarning("SignalProxy: Can't call on a closed device");
790 QDataStream out(&block, QIODevice::WriteOnly);
791 out.setVersion(QDataStream::Qt_4_2);
792 out << (quint32)0 << item;
793 out.device()->seek(0);
794 out << (quint32)(block.size() - sizeof(quint32));
798 bool SignalProxy::readDataFromDevice(QIODevice *dev, quint32 &blockSize, QVariant &item) {
800 in.setVersion(QDataStream::Qt_4_2);
803 if(dev->bytesAvailable() < (int)sizeof(quint32)) return false;
807 if(dev->bytesAvailable() < blockSize)
814 bool SignalProxy::methodsMatch(const QMetaMethod &signal, const QMetaMethod &slot) const {
815 // if we don't even have the same basename it's a sure NO
816 if(methodBaseName(signal) != methodBaseName(slot))
819 // are the signatures compatible?
820 if(!QObject::staticMetaObject.checkConnectArgs(signal.signature(), slot.signature()))
823 // we take an educated guess if the signals and slots match
824 QString signalsuffix = ::methodName(signal).mid(QString(::methodName(signal)).lastIndexOf(QRegExp("[A-Z]"))).toLower();
825 QString slotprefix = ::methodName(slot).left(QString(::methodName(slot)).indexOf(QRegExp("[A-Z]"))).toLower();
827 uint sizediff = qAbs(slotprefix.size() - signalsuffix.size());
828 int ratio = editingDistance(slotprefix, signalsuffix) - sizediff;
832 QString SignalProxy::methodBaseName(const QMetaMethod &method) {
833 QString methodname = QString(method.signature()).section("(", 0, 0);
835 // determine where we have to chop:
836 if(method.methodType() == QMetaMethod::Slot) {
837 // we take evertyhing from the first uppercase char if it's slot
838 methodname = methodname.mid(methodname.indexOf(QRegExp("[A-Z]")));
840 // and if it's a signal we discard everything from the last uppercase char
841 methodname = methodname.left(methodname.lastIndexOf(QRegExp("[A-Z]")));
844 methodname[0] = methodname[0].toUpper();
849 QVariantMap SignalProxy::initData(SyncableObject *obj) const {
850 return obj->toVariantMap();
853 void SignalProxy::setInitData(SyncableObject *obj, const QVariantMap &properties) {
854 if(isInitialized(obj))
856 obj->fromVariantMap(properties);
858 invokeSlot(obj, updatedRemotelyId(obj));
861 void SignalProxy::sendHeartBeat() {
862 dispatchSignal(SignalProxy::HeartBeat, QVariantList());
865 void SignalProxy::dumpProxyStats() {
867 if(proxyMode() == Server)
873 foreach(SignalRelay *relay, _relayHash.values())
874 sigCount += relay->sigCount();
877 foreach(ObjectId oid, _syncSlave.values())
878 slaveCount += oid.count();
881 qDebug() << " Proxy Mode:" << mode;
882 qDebug() << "attached sending Objects:" << _relayHash.count();
883 qDebug() << " number of Signals:" << sigCount;
884 qDebug() << " attached Slots:" << _attachedSlots.count();
885 qDebug() << " number of synced Slaves:" << slaveCount;
886 qDebug() << "number of Classes cached:" << _classInfo.count();
889 void SignalProxy::dumpSyncMap(SyncableObject *object) {
890 const QMetaObject *meta = object->metaObject();
891 qDebug() << "SignalProxy: SyncMap for Class" << meta->className();
893 QHash<QByteArray, int> syncMap_ = syncMap(object);
894 QHash<QByteArray, int>::const_iterator iter = syncMap_.constBegin();
895 while(iter != syncMap_.constEnd()) {
896 qDebug() << iter.key() << "-->" << iter.value() << meta->method(iter.value()).signature();
899 // QHash<int, int> syncMap_ = syncMap(object);
900 // QHash<int, int>::const_iterator iter = syncMap_.constBegin();
901 // while(iter != syncMap_.constEnd()) {
902 // qDebug() << iter.key() << meta->method(iter.key()).signature() << "-->" << iter.value() << meta->method(iter.value()).signature();