/***************************************************************************
- * Copyright (C) 2005-07 by The Quassel IRC Development Team *
+ * Copyright (C) 2005-07 by the Quassel IRC Team *
* devel@quassel-irc.org *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
+ * (at your option) version 3. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
***************************************************************************/
#include "signalproxy.h"
+#include <QObject>
+#include <QIODevice>
+#include <QAbstractSocket>
+#include <QHash>
+#include <QMultiHash>
+#include <QList>
+#include <QSet>
+#include <QDebug>
+#include <QMetaMethod>
+#include <QMetaProperty>
+#include <QMutexLocker>
+#include <QRegExp>
+#include "util.h"
-SignalProxy::SignalProxy(ProxyType _type, QIODevice *dev, QObject *parent) : QObject(parent), type(_type) {
- if(dev) {
- if(type != Client) {
- qWarning() << tr("Device given for ProxyType == Server, ignoring...").toAscii();
- } else {
- addPeer(dev);
+class SignalRelay: public QObject {
+
+/* Q_OBJECT is not necessary or even allowed, because we implement
+ qt_metacall ourselves (and don't use any other features of the meta
+ object system)
+*/
+public:
+ SignalRelay(SignalProxy* parent, QObject* source);
+ int qt_metacall(QMetaObject::Call _c, int _id, void **_a);
+
+ void attachSignal(int methodId, const QByteArray &func);
+
+ void setSynchronize(bool);
+ bool synchronize() const;
+
+ int sigCount() const;
+
+private:
+ SignalProxy* proxy;
+ QObject* caller;
+ QMultiHash<int, QByteArray> sigNames;
+ bool _sync;
+};
+
+SignalRelay::SignalRelay(SignalProxy* parent, QObject* source)
+ : QObject(parent),
+ proxy(parent),
+ caller(source),
+ _sync(false)
+{
+ QObject::connect(source, SIGNAL(destroyed()), parent, SLOT(detachSender()), Qt::DirectConnection);
+}
+
+int SignalRelay::qt_metacall(QMetaObject::Call _c, int _id, void **_a) {
+ _id = QObject::qt_metacall(_c, _id, _a);
+ if(_id < 0)
+ return _id;
+ if(_c == QMetaObject::InvokeMetaMethod) {
+ if(sigNames.contains(_id) || synchronize()) {
+ const QList<int> &argTypes = proxy->argTypes(caller, _id);
+ QVariantList params;
+ int n = argTypes.size();
+ for(int i=0; i<n; i++)
+ params.append(QVariant(argTypes[i], _a[i+1]));
+ QMultiHash<int, QByteArray>::const_iterator funcIter = sigNames.constFind(_id);
+ while(funcIter != sigNames.constEnd() && funcIter.key() == _id) {
+ proxy->dispatchSignal(funcIter.value(), params);
+ funcIter++;
+ }
+ if(synchronize() && proxy->syncMap(caller).contains(_id)) {
+ // qDebug() << "__SYNC__ >>>"
+ // << caller->metaObject()->className()
+ // << caller->objectName()
+ // << proxy->methodName(caller, _id)
+ // << params;
+ params.prepend(QVariant(_id));
+ params.prepend(caller->objectName());
+ params.prepend(caller->metaObject()->className());
+ proxy->dispatchSignal((int)SignalProxy::Sync, params);
+ }
+ }
+ _id -= 1;
+ }
+ return _id;
+}
+
+void SignalRelay::setSynchronize(bool sync) {
+ QHash<int, int>::const_iterator iter = proxy->syncMap(caller).constBegin();
+ if(!_sync && sync) {
+ while(iter != proxy->syncMap(caller).constEnd()) {
+ QMetaObject::connect(caller, iter.key(), this, QObject::staticMetaObject.methodCount() + iter.key());
+ iter++;
+ }
+ } else if (_sync && !sync) {
+ while(iter != proxy->syncMap(caller).constEnd()) {
+ QMetaObject::disconnect(caller, iter.key(), this, QObject::staticMetaObject.methodCount() + iter.key());
+ iter++;
}
}
+ _sync = sync;
}
+bool SignalRelay::synchronize() const {
+ return _sync;
+}
+
+int SignalRelay::sigCount() const {
+ // only for debuging purpose
+ return sigNames.count();
+}
+
+void SignalRelay::attachSignal(int methodId, const QByteArray &func) {
+ // we ride without safetybelts here... all checking for valid method etc pp has to be done by the caller
+ // all connected methodIds are offset by the standard methodCount of QObject
+ if(!sigNames.contains(methodId))
+ QMetaObject::connect(caller, methodId, this, QObject::staticMetaObject.methodCount() + methodId);
+
+ QByteArray fn;
+ if(!func.isEmpty()) {
+ fn = QMetaObject::normalizedSignature(func);
+ } else {
+ fn = QByteArray("2") + caller->metaObject()->method(methodId).signature();
+ }
+ sigNames.insert(methodId, fn);
+}
+// ====================
+// END SIGNALRELAY
+// ====================
+
+
+// ====================
+// SignalProxy
+// ====================
+SignalProxy::SignalProxy(QObject* parent)
+ : QObject(parent)
+{
+ setProxyMode(Client);
+}
+
+SignalProxy::SignalProxy(ProxyMode mode, QObject* parent)
+ : QObject(parent)
+{
+ setProxyMode(mode);
+}
+
+SignalProxy::SignalProxy(ProxyMode mode, QIODevice* device, QObject* parent)
+ : QObject(parent)
+{
+ setProxyMode(mode);
+ addPeer(device);
+}
+
SignalProxy::~SignalProxy() {
- foreach(Connection conn, peers) {
- conn.peer->deleteLater(); conn.device->deleteLater();
+ QList<QObject*> senders = _relayHash.keys();
+ foreach(QObject* sender, senders)
+ detachObject(sender);
+}
+
+void SignalProxy::setProxyMode(ProxyMode mode) {
+ foreach(QIODevice* peer, _peerByteCount.keys()) {
+ if(peer->isOpen()) {
+ qWarning() << "SignalProxy: Cannot change proxy mode while connected";
+ return;
+ }
}
+ _proxyMode = mode;
+ if(mode == Server)
+ initServer();
+ else
+ initClient();
+}
+
+SignalProxy::ProxyMode SignalProxy::proxyMode() const {
+ return _proxyMode;
+}
+
+void SignalProxy::initServer() {
+}
+
+void SignalProxy::initClient() {
+ attachSlot("__objectRenamed__", this, SLOT(objectRenamed(QByteArray, QString, QString)));
}
-void SignalProxy::addPeer(QIODevice *dev) {
- if(type == Client && peers.count()) {
- qWarning() << tr("Cannot add more than one peer to a SignalProxy in client mode!").toAscii();
+bool SignalProxy::addPeer(QIODevice* iodev) {
+ if(!iodev)
+ return false;
+
+ if(_peerByteCount.contains(iodev))
+ return true;
+
+ if(proxyMode() == Client && !_peerByteCount.isEmpty()) {
+ qWarning("SignalProxy: only one peer allowed in client mode!");
+ return false;
+ }
+
+ if(!iodev->isOpen())
+ qWarning("SignalProxy::the device you passed is not open!");
+
+ connect(iodev, SIGNAL(disconnected()), this, SLOT(removePeerBySender()));
+ connect(iodev, SIGNAL(readyRead()), this, SLOT(dataAvailable()));
+
+ QAbstractSocket* sock = qobject_cast<QAbstractSocket*>(iodev);
+ if(sock) {
+ connect(sock, SIGNAL(disconnected()), this, SLOT(removePeerBySender()));
+ }
+
+ _peerByteCount[iodev] = 0;
+
+ if(_peerByteCount.count() == 1)
+ emit connected();
+
+ return true;
+}
+
+void SignalProxy::removePeerBySender() {
+ // OK we're brutal here... but since it's a private slot we know what we've got connected to it...
+ QIODevice *ioDev = (QIODevice *)(sender());
+ removePeer(ioDev);
+}
+
+void SignalProxy::objectRenamed(QString oldname, QString newname) {
+ const QMetaObject *meta = sender()->metaObject();
+ const QByteArray className(meta->className());
+ objectRenamed(className, oldname, newname);
+
+ if(proxyMode() == Client)
+ return;
+
+ QVariantList params;
+ params << className << oldname << newname;
+ dispatchSignal("__objectRenamed__", params);
+}
+
+void SignalProxy::objectRenamed(QByteArray classname, QString oldname, QString newname) {
+ QMutexLocker locker(&slaveMutex);
+ if(_syncSlave.contains(classname) && _syncSlave[classname].contains(oldname) && oldname != newname)
+ _syncSlave[classname][newname] = _syncSlave[classname].take(oldname);
+}
+
+
+void SignalProxy::removePeer(QIODevice* iodev) {
+ if(_peerByteCount.isEmpty()) {
+ qWarning() << "SignalProxy: No peers in use!";
return;
}
- Connection conn;
- conn.device = dev;
- conn.peer = new QxtRPCPeer(dev, QxtRPCPeer::Peer, this);
- connect(conn.peer, SIGNAL(peerDisconnected()), this, SLOT(socketDisconnected()));
- foreach(SlotDesc slot, attachedSlots) {
- conn.peer->attachSlot(slot.rpcFunction, slot.recv, slot.slot);
+ if(proxyMode() == Server && !iodev) {
+ // disconnect all
+ QList<QIODevice *> peers = _peerByteCount.keys();
+ foreach(QIODevice *peer, peers)
+ removePeer(peer);
}
- foreach(SignalDesc sig, attachedSignals) {
- conn.peer->attachSignal(sig.sender, sig.signal, sig.rpcFunction);
+
+ if(proxyMode() != Server && !iodev)
+ iodev = _peerByteCount.keys().first();
+
+ Q_ASSERT(iodev);
+
+ if(!_peerByteCount.contains(iodev)) {
+ qWarning() << "SignalProxy: unknown QIODevice" << iodev;
+ return;
}
- peers.append(conn);
+
+ // take a last gasp
+ while(true) {
+ QVariant var;
+ if(readDataFromDevice(iodev, _peerByteCount[iodev], var))
+ receivePeerSignal(iodev, var);
+ else
+ break;
+ }
+ _peerByteCount.remove(iodev);
+
+ disconnect(iodev, 0, this, 0);
+ emit peerRemoved(iodev);
+
+ if(_peerByteCount.isEmpty())
+ emit disconnected();
+}
+
+void SignalProxy::setArgTypes(QObject* obj, int methodId) {
+ const QMetaObject *meta = obj->metaObject();
+ QList<QByteArray> p = meta->method(methodId).parameterTypes();
+ QList<int> argTypes;
+ int ct = p.count();
+ for(int i=0; i<ct; i++)
+ argTypes.append(QMetaType::type(p.value(i)));
+
+ Q_ASSERT(!_classInfo[meta]->argTypes.contains(methodId));
+ _classInfo[meta]->argTypes[methodId] = argTypes;
+}
+const QList<int> &SignalProxy::argTypes(QObject *obj, int methodId) {
+ Q_ASSERT(_classInfo.contains(obj->metaObject()));
+ if(!_classInfo[obj->metaObject()]->argTypes.contains(methodId))
+ setArgTypes(obj, methodId);
+ return _classInfo[obj->metaObject()]->argTypes[methodId];
}
-void SignalProxy::socketDisconnected() {
- for(int i = 0; i < peers.count(); i++) {
- Connection conn = peers[i];
- QAbstractSocket *sock = qobject_cast<QAbstractSocket*>(conn.device);
- if(!sock) continue;
- if(sock->state() == QAbstractSocket::UnconnectedState) {
- peers[i].peer->deleteLater(); peers[i].device->deleteLater();
- peers.removeAt(i);
- emit peerDisconnected();
- i--;
+void SignalProxy::setMethodName(QObject *obj, int methodId) {
+ const QMetaObject *meta = obj->metaObject();
+ QByteArray method(::methodName(meta->method(methodId)));
+ Q_ASSERT(!_classInfo[meta]->methodNames.contains(methodId));
+ _classInfo[meta]->methodNames[methodId] = method;
+}
+
+const QByteArray &SignalProxy::methodName(QObject *obj, int methodId) {
+ Q_ASSERT(_classInfo.contains(obj->metaObject()));
+ if(!_classInfo[obj->metaObject()]->methodNames.contains(methodId))
+ setMethodName(obj, methodId);
+ return _classInfo[obj->metaObject()]->methodNames[methodId];
+}
+
+
+void SignalProxy::setSyncMap(QObject *obj) {
+ const QMetaObject *meta = obj->metaObject();
+ QHash<int, int> syncMap;
+
+ QList<int> slotIndexes;
+ for(int i = 0; i < meta->methodCount(); i++) {
+ if(meta->method(i).methodType() == QMetaMethod::Slot)
+ slotIndexes << i;
+ }
+
+ 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.removeAt(slotIndexes.indexOf(matchIdx));
+ syncMap[signalIdx] = matchIdx;
}
}
+
+ Q_ASSERT(_classInfo[meta]->syncMap.isEmpty());
+ _classInfo[meta]->syncMap = syncMap;
}
-void SignalProxy::attachSignal(QObject* sender, const char* signal, const QByteArray& rpcFunction) {
- foreach(Connection conn, peers) {
- conn.peer->attachSignal(sender, signal, rpcFunction);
+const QHash<int,int> &SignalProxy::syncMap(QObject *obj) {
+ Q_ASSERT(_classInfo.contains(obj->metaObject()));
+ if(_classInfo[obj->metaObject()]->syncMap.isEmpty())
+ setSyncMap(obj);
+ return _classInfo[obj->metaObject()]->syncMap;
+}
+
+void SignalProxy::createClassInfo(QObject *obj) {
+ if(!_classInfo.contains(obj->metaObject()))
+ _classInfo[obj->metaObject()] = new ClassInfo();
+}
+
+bool SignalProxy::attachSignal(QObject* sender, const char* signal, const QByteArray& sigName) {
+ const QMetaObject* meta = sender->metaObject();
+ QByteArray sig(meta->normalizedSignature(signal).mid(1));
+ int methodId = meta->indexOfMethod(sig.constData());
+ if(methodId == -1 || meta->method(methodId).methodType() != QMetaMethod::Signal) {
+ qWarning() << "SignalProxy::attachSignal(): No such signal" << signal;
+ return false;
}
- attachedSignals.append(SignalDesc(sender, signal, rpcFunction));
+ createClassInfo(sender);
+
+ SignalRelay* relay;
+ if(_relayHash.contains(sender))
+ relay = _relayHash[sender];
+ else
+ relay = _relayHash[sender] = new SignalRelay(this, sender);
+
+ relay->attachSignal(methodId, sigName);
+
+ return true;
}
-void SignalProxy::attachSlot(const QByteArray& rpcFunction, QObject* recv, const char* slot) {
- foreach(Connection conn, peers) {
- conn.peer->attachSlot(rpcFunction, recv, slot);
+
+bool SignalProxy::attachSlot(const QByteArray& sigName, QObject* recv, const char* slot) {
+ const QMetaObject* meta = recv->metaObject();
+ int methodId = meta->indexOfMethod(meta->normalizedSignature(slot).mid(1));
+ if(methodId == -1 || meta->method(methodId).methodType() == QMetaMethod::Method) {
+ qWarning() << "SignalProxy::attachSlot(): No such slot" << slot;
+ return false;
}
- attachedSlots.append(SlotDesc(rpcFunction, recv, slot));
+
+ createClassInfo(recv);
+
+ QByteArray funcName = QMetaObject::normalizedSignature(sigName.constData());
+ _attachedSlots.insert(funcName, qMakePair(recv, methodId));
+
+ QObject::disconnect(recv, SIGNAL(destroyed()), this, SLOT(detachSender()));
+ QObject::connect(recv, SIGNAL(destroyed()), this, SLOT(detachSender()), Qt::DirectConnection);
+ return true;
+}
+
+void SignalProxy::synchronize(QObject *obj) {
+ if(proxyMode() == Server)
+ return synchronizeAsMaster(obj);
+ else
+ return synchronizeAsSlave(obj);
+}
+
+void SignalProxy::synchronizeAsMaster(QObject *sender) {
+ createClassInfo(sender);
+
+ SignalRelay* relay;
+ if(_relayHash.contains(sender))
+ relay = _relayHash[sender];
+ else
+ relay = _relayHash[sender] = new SignalRelay(this, sender);
+
+ relay->setSynchronize(true);
+
+ if(sender->metaObject()->indexOfSignal(QMetaObject::normalizedSignature("renameObject(QString, QString)")) != -1)
+ connect(sender, SIGNAL(renameObject(QString, QString)), this, SLOT(objectRenamed(QString, QString)), Qt::DirectConnection);
+
+ QByteArray className(sender->metaObject()->className());
+ _syncSlave[className][sender->objectName()] = sender;
+
+ setInitialized(sender);
+}
+
+void SignalProxy::synchronizeAsSlave(QObject *receiver) {
+ QByteArray className(receiver->metaObject()->className());
+ _syncSlave[className][receiver->objectName()] = receiver;
+
+ createClassInfo(receiver);
+
+ requestInit(receiver);
+}
+
+void SignalProxy::setInitialized(QObject *obj) {
+ QMetaObject::invokeMethod(obj, "setInitialized");
+}
+
+bool SignalProxy::initialized(QObject *obj) {
+ bool init;
+ if(!QMetaObject::invokeMethod(obj, "initialized", Q_RETURN_ARG(bool, init)))
+ init = false;
+ return init;
+}
+
+void SignalProxy::requestInit(QObject *obj) {
+ if(proxyMode() == Server || initialized(obj))
+ return;
+
+ QVariantList params;
+ params << obj->metaObject()->className()
+ << obj->objectName();
+ dispatchSignal((int)InitRequest, params);
+}
+
+void SignalProxy::detachSender() {
+ // this is a private slot. the reason for that is, that we enfoce Qt::DirectConnection.
+ // the result is, that we can be sure, that a registered receiver is removed immediately when it's destroyed.
+ // since we're guarding the the internal datastructures with mutexes this means,
+ // that the object destruction is deffered until we're finished delivering our sync/init/whatever request.
+ // all in all: thread safety! *sigh*
+ detachObject(sender());
}
+// detachObject/Signals/Slots() can be called as a result of an incoming call
+// this might destroy our the iterator used for delivery
+// thus we wrap the actual disconnection by using QueuedConnections
void SignalProxy::detachObject(QObject* obj) {
- Q_ASSERT(false); // not done yet
- foreach(Connection conn, peers) {
- conn.peer->detachObject(obj);
+ QMutexLocker locker(&slaveMutex);
+ _detachSignals(obj);
+ _detachSlots(obj);
+ _stopSync(obj);
+}
+
+void SignalProxy::detachSignals(QObject* sender) {
+ QMutexLocker locker(&slaveMutex);
+ _detachSignals(sender);
+}
+
+void SignalProxy::detachSlots(QObject* receiver) {
+ QMutexLocker locker(&slaveMutex);
+ _detachSlots(receiver);
+}
+
+void SignalProxy::stopSync(QObject* obj) {
+ QMutexLocker locker(&slaveMutex);
+ _stopSync(obj);
+}
+
+void SignalProxy::_detachSignals(QObject* sender) {
+ if(!_relayHash.contains(sender))
+ return;
+ _relayHash.take(sender)->deleteLater();
+}
+
+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) {
+ if(_relayHash.contains(obj))
+ _relayHash[obj]->setSynchronize(false);
+
+ // we can't use a className here, since it might be effed up, if we receive the call as a result of a decon
+ // gladly the objectName() is still valid. So we have only to iterate over the classes not each instance! *sigh*
+ QHash<QByteArray, ObjectId>::iterator classIter = _syncSlave.begin();
+ while(classIter != _syncSlave.end()) {
+ if(classIter->contains(obj->objectName())) {
+ classIter->remove(obj->objectName());
+ break;
+ }
+ classIter++;
+ }
+}
+
+void SignalProxy::dispatchSignal(QIODevice *receiver, const QVariant &identifier, const QVariantList ¶ms) {
+ QVariantList packedFunc;
+ packedFunc << identifier;
+ packedFunc << params;
+ writeDataToDevice(receiver, QVariant(packedFunc));
+}
+
+void SignalProxy::dispatchSignal(const QVariant &identifier, const QVariantList ¶ms) {
+ // yes I know we have a little code duplication here... it's for the sake of performance
+ QVariantList packedFunc;
+ packedFunc << identifier;
+ packedFunc << params;
+ foreach(QIODevice* dev, _peerByteCount.keys())
+ writeDataToDevice(dev, QVariant(packedFunc));
+}
+
+void SignalProxy::receivePeerSignal(QIODevice *sender, const QVariant &packedFunc) {
+ QVariantList params(packedFunc.toList());
+
+ QVariant call = params.takeFirst();
+ if(call.type() != QVariant::Int)
+ return handleSignal(call.toByteArray(), params);
+
+ // well yes we are locking code here and not only data.
+ // otherwise each handler would have to lock the data anyway. this leaves us on the safe side
+ // unable to forget a lock
+ QMutexLocker locker(&slaveMutex);
+
+ switch(call.toInt()) {
+ case Sync:
+ return handleSync(params);
+ case InitRequest:
+ return handleInitRequest(sender, params);
+ case InitData:
+ return handleInitData(sender, params);
+ default:
+ qWarning() << "received undefined CallType" << call.toInt();
+ return;
+ }
+}
+
+void SignalProxy::handleSync(QVariantList params) {
+ if(params.count() < 3) {
+ qWarning() << "received invalid Sync call" << params;
+ return;
+ }
+
+ QByteArray className = params.takeFirst().toByteArray();
+ QString objectName = params.takeFirst().toString();
+ int signalId = params.takeFirst().toInt();
+
+ if(!_syncSlave.contains(className) || !_syncSlave[className].contains(objectName)) {
+ qWarning() << "no registered receiver:" << className << objectName << "for Sync call" << signalId << params;
+ return;
}
- // FIXME: delete attached signal/slot info
+ QObject *receiver = _syncSlave[className][objectName];
+ if(!syncMap(receiver).contains(signalId)) {
+ const QMetaObject *meta = receiver->metaObject();
+ QString signalName;
+ if(signalId < meta->methodCount())
+ signalName = QString(meta->method(signalId).signature());
+ else
+ signalName = QString::number(signalId);
+
+ qWarning() << "received Sync Call for Object" << receiver
+ << "- no matching Slot for Signal:" << signalName;
+ return;
+ }
+
+ int slotId = syncMap(receiver)[signalId];
+ if(!invokeSlot(receiver, slotId, params))
+ qWarning("SignalProxy::handleSync(): invokeMethod for \"%s\" failed ", methodName(receiver, slotId).constData());
}
-void SignalProxy::sendSignal(const char *signal, QVariant p1, QVariant p2, QVariant p3, QVariant p4, QVariant p5, QVariant p6, QVariant p7, QVariant p8, QVariant p9) {
- foreach(Connection conn, peers) {
- conn.peer->call(signal, p1, p2, p3, p4, p5, p6, p7, p8, p9);
+void SignalProxy::handleInitRequest(QIODevice *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;
+ }
+
+ QObject *obj = _syncSlave[className][objectName];
+
+ QVariantList params_;
+ params_ << obj->metaObject()->className()
+ << obj->objectName()
+ << initData(obj);
+
+ dispatchSignal(sender, (int)InitData, params_);
}
+void SignalProxy::handleInitData(QIODevice *sender, const QVariantList ¶ms) {
+ Q_UNUSED(sender)
+ if(params.count() != 3) {
+ qWarning() << "SignalProxy::handleInitRequest() received initRequest 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::handleInitRequest() received initRequest for unregistered Class:"
+ << className;
+ return;
+ }
+
+ if(!_syncSlave[className].contains(objectName)) {
+ qWarning() << "SignalProxy::handleInitRequest() received initRequest for unregistered Object:"
+ << className << objectName;
+ return;
+ }
+
+ QObject *obj = _syncSlave[className][objectName];
+ setInitData(obj, propertyMap);
+}
+
+void SignalProxy::handleSignal(const QByteArray &funcName, const QVariantList ¶ms) {
+ QObject* receiver;
+ int methodId;
+ SlotHash::const_iterator slot = _attachedSlots.constFind(funcName);
+ while(slot != _attachedSlots.constEnd() && slot.key() == funcName) {
+ receiver = (*slot).first;
+ methodId = (*slot).second;
+ if(!invokeSlot(receiver, methodId, params))
+ qWarning("SignalProxy::handleSignal(): invokeMethod for \"%s\" failed ", methodName(receiver, methodId).constData());
+ slot++;
+ }
+}
+
+bool SignalProxy::invokeSlot(QObject *receiver, int methodId, const QVariantList ¶ms) {
+ int numParams = argTypes(receiver, methodId).count();
+ QGenericArgument args[9];
+ for(int i = 0; i < numParams; i++)
+ args[i] = QGenericArgument(params[i].typeName(), params[i].constData());
+ return QMetaObject::invokeMethod(receiver, methodName(receiver, methodId), args[0], args[1], args[2], args[3], args[4], args[5], args[6], args[7], args[8]);
+}
+
+void SignalProxy::dataAvailable() {
+ // yet again. it's a private slot. no need for checks.
+ QIODevice* ioDev = qobject_cast<QIODevice* >(sender());
+ QVariant var;
+ while(readDataFromDevice(ioDev, _peerByteCount[ioDev], var))
+ receivePeerSignal(ioDev, var);
+}
+
+void SignalProxy::writeDataToDevice(QIODevice *dev, const QVariant &item) {
+ QAbstractSocket* sock = qobject_cast<QAbstractSocket*>(dev);
+ if(!dev->isOpen() || (sock && sock->state()!=QAbstractSocket::ConnectedState)) {
+ qWarning("SignalProxy: Can't call on a closed device");
+ return;
+ }
+ QByteArray block;
+ QDataStream out(&block, QIODevice::WriteOnly);
+ out.setVersion(QDataStream::Qt_4_2);
+ out << (quint32)0 << item;
+ out.device()->seek(0);
+ out << (quint32)(block.size() - sizeof(quint32));
+ dev->write(block);
+}
+
+bool SignalProxy::readDataFromDevice(QIODevice *dev, quint32 &blockSize, QVariant &item) {
+ QDataStream in(dev);
+ in.setVersion(QDataStream::Qt_4_2);
+
+ if(blockSize == 0) {
+ if(dev->bytesAvailable() < (int)sizeof(quint32)) return false;
+ in >> blockSize;
+ }
+
+ if(dev->bytesAvailable() < blockSize)
+ return false;
+ in >> item;
+ blockSize = 0;
+ return true;
+}
+
+bool SignalProxy::methodsMatch(const QMetaMethod &signal, const QMetaMethod &slot) const {
+ // if we don't even have the same basename it's a sure NO
+ if(methodBaseName(signal) != 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).mid(QString(::methodName(signal)).lastIndexOf(QRegExp("[A-Z]"))).toLower();
+ QString slotprefix = ::methodName(slot).left(QString(::methodName(slot)).indexOf(QRegExp("[A-Z]"))).toLower();
+
+ uint sizediff = qAbs(slotprefix.size() - signalsuffix.size());
+ int ratio = editingDistance(slotprefix, signalsuffix) - sizediff;
+ return (ratio < 2);
+}
+
+QString SignalProxy::methodBaseName(const QMetaMethod &method) {
+ QString methodname = QString(method.signature()).section("(", 0, 0);
+
+ // determine where we have to chop:
+ if(method.methodType() == QMetaMethod::Slot) {
+ // we take evertyhing from the first uppercase char if it's slot
+ methodname = methodname.mid(methodname.indexOf(QRegExp("[A-Z]")));
+ } else {
+ // and if it's a signal we discard everything from the last uppercase char
+ methodname = methodname.left(methodname.lastIndexOf(QRegExp("[A-Z]")));
+ }
+
+ methodname[0] = methodname[0].toUpper();
+
+ return methodname;
+}
+
+QVariantMap SignalProxy::initData(QObject *obj) const {
+ QVariantMap properties;
+
+ const QMetaObject* meta = obj->metaObject();
+
+ // we collect data from properties
+ for(int i = 0; i < meta->propertyCount(); i++) {
+ QMetaProperty prop = meta->property(i);
+ properties[QString(prop.name())] = prop.read(obj);
+ }
+
+ // ...as well as methods, which have names starting with "init"
+ for(int i = 0; i < meta->methodCount(); i++) {
+ QMetaMethod method = meta->method(i);
+ QString methodname(::methodName(method));
+ if(!methodname.startsWith("init") || methodname.startsWith("initSet"))
+ continue;
+
+ QVariant value = QVariant(QVariant::nameToType(method.typeName()));
+ QGenericReturnArgument genericvalue = QGenericReturnArgument(method.typeName(), &value);
+ QMetaObject::invokeMethod(obj, methodname.toAscii(), genericvalue);
+
+ properties[methodBaseName(method)] = value;
+ // qDebug() << ">>> SYNC:" << methodBaseName(method) << value;
+ }
+
+ // properties["Payload"] = QByteArray(10000000, 'a'); // for testing purposes
+ return properties;
+}
+
+void SignalProxy::setInitData(QObject *obj, const QVariantMap &properties) {
+ if(initialized(obj))
+ return;
+
+ const QMetaObject *meta = obj->metaObject();
+
+ QVariantMap::const_iterator iterator = properties.constBegin();
+ while(iterator != properties.constEnd()) {
+ QString name = iterator.key();
+ int propertyIndex = meta->indexOfProperty(name.toAscii());
+
+ if(propertyIndex == -1 || !meta->property(propertyIndex).isWritable())
+ setInitValue(obj, name, iterator.value());
+ else
+ obj->setProperty(name.toAscii(), iterator.value());
+ // qDebug() << "<<< SYNC:" << name << iterator.value();
+ iterator++;
+ }
+ setInitialized(obj);
+}
+
+bool SignalProxy::setInitValue(QObject *obj, const QString &property, const QVariant &value) {
+ QString handlername = QString("initSet") + property;
+ handlername[7] = handlername[7].toUpper();
+ QGenericArgument param(value.typeName(), value.constData());
+ return QMetaObject::invokeMethod(obj, handlername.toAscii(), param);
+}
+
+void SignalProxy::dumpProxyStats() {
+ QString mode;
+ if(proxyMode() == Server)
+ mode = "Server";
+ else
+ mode = "Client";
+
+ int sigCount = 0;
+ foreach(SignalRelay *relay, _relayHash.values())
+ sigCount += relay->sigCount();
+
+ int slaveCount = 0;
+ foreach(ObjectId oid, _syncSlave.values())
+ slaveCount += oid.count();
+
+ qDebug() << this;
+ qDebug() << " Proxy Mode:" << mode;
+ qDebug() << "attached sending Objects:" << _relayHash.count();
+ qDebug() << " number of Signals:" << sigCount;
+ qDebug() << " attached Slots:" << _attachedSlots.count();
+ qDebug() << " number of synced Slaves:" << slaveCount;
+ qDebug() << "number of Classes cached:" << _classInfo.count();
+}
+
+void SignalProxy::dumpSyncMap(QObject *object) {
+ const QMetaObject *meta = object->metaObject();
+ qDebug() << "SignalProxy: SyncMap for Class" << meta->className();
+
+ QHash<int, int> syncMap_ = syncMap(object);
+ QHash<int, int>::const_iterator iter = syncMap_.constBegin();
+ while(iter != syncMap_.constEnd()) {
+ qDebug() << iter.key() << meta->method(iter.key()).signature() << "-->" << iter.value() << meta->method(iter.value()).signature();
+ iter++;
+ }
+}
projects / quassel.git / blobdiff