/***************************************************************************
- * Copyright (C) 2005-07 by The Quassel IRC Development Team *
+ * Copyright (C) 2005-09 by the Quassel Project *
* 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"
-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();
+#include <QObject>
+#include <QIODevice>
+#include <QAbstractSocket>
+#include <QHostAddress>
+#include <QHash>
+#include <QMultiHash>
+#include <QList>
+#include <QSet>
+#include <QDebug>
+#include <QMetaMethod>
+#include <QMetaProperty>
+#include <QRegExp>
+#ifdef HAVE_SSL
+#include <QSslSocket>
+#endif
+#include <QThread>
+#include <QTime>
+#include <QEvent>
+#include <QCoreApplication>
+
+#include "syncableobject.h"
+#include "util.h"
+
+// ==================================================
+// PeerSignalEvent
+// ==================================================
+class PeerSignalEvent : public QEvent {
+public:
+ PeerSignalEvent(SignalProxy *sender, SignalProxy::RequestType requestType, const QVariantList ¶ms) : QEvent(QEvent::Type(SignalProxy::PeerSignal)), sender(sender), requestType(requestType), params(params) {}
+ SignalProxy *sender;
+ SignalProxy::RequestType requestType;
+ QVariantList params;
+};
+
+class RemovePeerEvent : public QEvent {
+public:
+ RemovePeerEvent(QObject *peer) : QEvent(QEvent::Type(SignalProxy::RemovePeer)), peer(peer) {}
+ QObject *peer;
+};
+
+// ==================================================
+// Relays
+// ==================================================
+class SignalProxy::Relay : 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:
+ Relay(SignalProxy *parent) : QObject(parent), _proxy(parent) {}
+
+ inline SignalProxy *proxy() const { return _proxy; }
+
+private:
+ SignalProxy *_proxy;
+};
+
+class SignalProxy::SyncRelay : public SignalProxy::Relay {
+public:
+ SyncRelay(SignalProxy::ExtendedMetaObject *eMeta, SignalProxy *parent);
+
+ int qt_metacall(QMetaObject::Call _c, int _id, void **_a);
+
+ void synchronize(SyncableObject *object);
+
+ int signalCount() const { return _signalCount; }
+
+private:
+ ExtendedMetaObject *_eMeta;
+ QSet<int> _signalIds;
+ int _signalCount;
+};
+
+class SignalProxy::SignalRelay : public SignalProxy::Relay {
+public:
+ SignalRelay(SignalProxy *parent) : Relay(parent) {}
+
+ int qt_metacall(QMetaObject::Call _c, int _id, void **_a);
+
+ void attachSignal(QObject *sender, int signalId, const QByteArray &funcName);
+ void detachSignal(QObject *sender, int signalId = -1);
+
+private:
+ struct Signal {
+ QObject *sender;
+ int signalId;
+ QByteArray signature;
+ Signal(QObject *sender, int sigId, const QByteArray &signature) : sender(sender), signalId(sigId), signature(signature) {}
+ Signal() : sender(0), signalId(-1) {}
+ };
+
+ QHash<int, Signal> _slots;
+};
+
+SignalProxy::SyncRelay::SyncRelay(SignalProxy::ExtendedMetaObject *eMeta, SignalProxy *parent)
+ : Relay(parent),
+ _eMeta(eMeta)
+{
+ QByteArray signature;
+ for(int i = 0; i < eMeta->metaObject()->methodCount(); i++ ) {
+ signature = eMeta->metaObject()->method(i).signature();
+ if(!eMeta->syncMap().contains(signature))
+ continue;
+
+ if((proxy()->proxyMode() == SignalProxy::Server && !signature.contains("Requested")) ||
+ (proxy()->proxyMode() == SignalProxy::Client && signature.contains("Requested"))) {
+ _signalIds << i;
+ }
+ }
+ _signalCount = _signalIds.count();
+}
+
+void SignalProxy::SyncRelay::synchronize(SyncableObject *object) {
+ if(object->syncMetaObject() != _eMeta->metaObject()) {
+ qWarning() << Q_FUNC_INFO << "can't use SyncRelay of class" << _eMeta->metaObject()->className()
+ << "for SyncableObject" << object << "with syncMetaObject of class" << object->syncMetaObject()->className();
+ return;
+ }
+
+ QSet<int>::const_iterator sigIter = _signalIds.constBegin();
+ while(sigIter != _signalIds.constEnd()) {
+ QMetaObject::connect(object, *sigIter, this, QObject::staticMetaObject.methodCount() + *sigIter);
+ sigIter++;
+ }
+}
+
+int SignalProxy::SyncRelay::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(!_signalIds.contains(_id)) {
+ qWarning() << Q_FUNC_INFO << "_id" << _id << "is not a valid SyncMethod!";
+ return _id;
+ }
+
+ QVariantList params;
+
+ params << _eMeta->metaObject()->className()
+ << sender()->objectName()
+ << _eMeta->metaObject()->method(_id).signature();
+
+ const QList<int> &argTypes = _eMeta->argTypes(_id);
+ for(int i = 0; i < argTypes.size(); i++) {
+ if(argTypes[i] == 0) {
+ qWarning() << Q_FUNC_INFO << "received invalid data for argument number" << i << "of signal" << QString("%1::%2").arg(_eMeta->metaObject()->className()).arg(_eMeta->metaObject()->method(_id).signature());
+ qWarning() << " - make sure all your data types are known by the Qt MetaSystem";
+ return _id;
+ }
+ params << QVariant(argTypes[i], _a[i+1]);
+ }
+
+ proxy()->dispatchSignal(SignalProxy::Sync, params);
+ }
+ _id -= _signalCount;
+ return _id;
+}
+
+
+void SignalProxy::SignalRelay::attachSignal(QObject *sender, int signalId, const QByteArray &funcName) {
+ // 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
+ int slotId;
+ for(int i = 0;; i++) {
+ if(!_slots.contains(i)) {
+ slotId = i;
+ break;
+ }
+ }
+
+ QByteArray fn;
+ if(!funcName.isEmpty()) {
+ fn = QMetaObject::normalizedSignature(funcName);
+ } else {
+ fn = SIGNAL(fakeMethodSignature());
+ fn = fn.replace("fakeMethodSignature()", sender->metaObject()->method(signalId).signature());
+ }
+
+ _slots[slotId] = Signal(sender, signalId, fn);
+
+ QMetaObject::connect(sender, signalId, this, QObject::staticMetaObject.methodCount() + slotId);
+}
+
+void SignalProxy::SignalRelay::detachSignal(QObject *sender, int signalId) {
+ QHash<int, Signal>::iterator slotIter = _slots.begin();
+ while(slotIter != _slots.end()) {
+ if(slotIter->sender == sender && (signalId == -1 || slotIter->signalId == signalId)) {
+ slotIter = _slots.erase(slotIter);
+ if(signalId != -1)
+ break;
} else {
- addPeer(dev);
+ slotIter++;
+ }
+ }
+}
+
+int SignalProxy::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(_slots.contains(_id)) {
+ QObject *caller = sender();
+
+ SignalProxy::ExtendedMetaObject *eMeta = proxy()->extendedMetaObject(caller->metaObject());
+ Q_ASSERT(eMeta);
+
+ const Signal &signal = _slots[_id];
+
+ QVariantList params;
+ params << signal.signature;
+
+ const QList<int> &argTypes = eMeta->argTypes(signal.signalId);
+ for(int i = 0; i < argTypes.size(); i++) {
+ if(argTypes[i] == 0) {
+ 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());
+ qWarning() << " - make sure all your data types are known by the Qt MetaSystem";
+ return _id;
+ }
+ params << QVariant(argTypes[i], _a[i+1]);
+ }
+
+ proxy()->dispatchSignal(SignalProxy::RpcCall, params);
}
+ _id -= _slots.count();
+ }
+ return _id;
+}
+
+// ==================================================
+// Peers
+// ==================================================
+void SignalProxy::IODevicePeer::dispatchSignal(const RequestType &requestType, const QVariantList ¶ms) {
+ QVariantList packedFunc;
+ packedFunc << (qint16)requestType
+ << params;
+ dispatchPackedFunc(QVariant(packedFunc));
+}
+
+bool SignalProxy::IODevicePeer::isSecure() const {
+#ifdef HAVE_SSL
+ QSslSocket *sslSocket = qobject_cast<QSslSocket *>(_device);
+ if(sslSocket)
+ return sslSocket->isEncrypted() || sslSocket->localAddress() == QHostAddress::LocalHost || sslSocket->localAddress() == QHostAddress::LocalHostIPv6;
+#endif
+
+ QAbstractSocket *socket = qobject_cast<QAbstractSocket *>(_device);
+ if(socket)
+ return socket->localAddress() == QHostAddress::LocalHost || socket->localAddress() == QHostAddress::LocalHostIPv6;
+
+ return false;
+}
+
+QString SignalProxy::IODevicePeer::address() const {
+ QAbstractSocket *socket = qobject_cast<QAbstractSocket *>(_device);
+ if(socket)
+ return socket->peerAddress().toString();
+ else
+ return QString();
+}
+
+void SignalProxy::SignalProxyPeer::dispatchSignal(const RequestType &requestType, const QVariantList ¶ms) {
+ Qt::ConnectionType type = QThread::currentThread() == receiver->thread()
+ ? Qt::DirectConnection
+ : Qt::QueuedConnection;
+
+ if(type == Qt::DirectConnection) {
+ receiver->receivePeerSignal(sender, requestType, params);
+ } else {
+ QCoreApplication::postEvent(receiver, new PeerSignalEvent(sender, requestType, params));
}
}
+// ==================================================
+// SignalProxy
+// ==================================================
+SignalProxy::SignalProxy(QObject* parent)
+ : QObject(parent)
+{
+ setProxyMode(Client);
+ init();
+}
+
+SignalProxy::SignalProxy(ProxyMode mode, QObject* parent)
+ : QObject(parent)
+{
+ setProxyMode(mode);
+ init();
+}
+
+SignalProxy::SignalProxy(ProxyMode mode, QIODevice* device, QObject* parent)
+ : QObject(parent)
+{
+ setProxyMode(mode);
+ addPeer(device);
+ init();
+}
+
SignalProxy::~SignalProxy() {
- //qDebug() << "peers:" << peers.count();
- foreach(Connection conn, peers) {
- conn.peer->deleteLater(); conn.device->deleteLater();
+ removeAllPeers();
+}
+
+void SignalProxy::setProxyMode(ProxyMode mode) {
+ PeerHash::iterator peer = _peers.begin();
+ while(peer != _peers.end()) {
+ if((*peer)->type() != AbstractPeer::IODevicePeer) {
+ IODevicePeer *ioPeer = static_cast<IODevicePeer *>(*peer);
+ if(ioPeer->isOpen()) {
+ qWarning() << "SignalProxy: Cannot change proxy mode while connected";
+ return;
+ }
+ }
+ if((*peer)->type() != AbstractPeer::SignalProxyPeer) {
+ qWarning() << "SignalProxy: Cannot change proxy mode while connected to another internal SignalProxy";
+ return;
+ }
+ peer++;
+ }
+
+ _proxyMode = mode;
+ if(mode == Server)
+ initServer();
+ else
+ initClient();
+}
+
+void SignalProxy::init() {
+ _signalRelay = new SignalRelay(this);
+ connect(&_heartBeatTimer, SIGNAL(timeout()), this, SLOT(sendHeartBeat()));
+ _heartBeatTimer.start(30 * 1000);
+ _secure = false;
+ updateSecureState();
+}
+
+void SignalProxy::initServer() {
+}
+
+void SignalProxy::initClient() {
+ attachSlot("__objectRenamed__", this, SLOT(objectRenamed(QByteArray, QString, QString)));
+}
+
+bool SignalProxy::addPeer(QIODevice* iodev) {
+ if(!iodev)
+ return false;
+
+ if(_peers.contains(iodev))
+ return true;
+
+ if(proxyMode() == Client && !_peers.isEmpty()) {
+ qWarning("SignalProxy: only one peer allowed in client mode!");
+ return false;
+ }
+
+ if(!iodev->isOpen()) {
+ qWarning("SignalProxy::addPeer(QIODevice *iodev): iodev needs to be open!");
+ return false;
+ }
+
+ connect(iodev, SIGNAL(disconnected()), this, SLOT(removePeerBySender()));
+ connect(iodev, SIGNAL(readyRead()), this, SLOT(dataAvailable()));
+
+#ifdef HAVE_SSL
+ QSslSocket *sslSocket = qobject_cast<QSslSocket *>(iodev);
+ if(sslSocket) {
+ connect(iodev, SIGNAL(encrypted()), this, SLOT(updateSecureState()));
+ }
+#endif
+
+ if(!iodev->parent())
+ iodev->setParent(this);
+
+ _peers[iodev] = new IODevicePeer(iodev, iodev->property("UseCompression").toBool());
+
+ if(_peers.count() == 1)
+ emit connected();
+
+ updateSecureState();
+ return true;
+}
+
+bool SignalProxy::addPeer(SignalProxy* proxy) {
+ if(!proxy)
+ return false;
+
+ if(proxyMode() == proxy->proxyMode()) {
+ qWarning() << "SignalProxy::addPeer(): adding a SignalProxy as peer requires one proxy to be server and one client!";
+ return false;
+ }
+
+ if(_peers.contains(proxy)) {
+ return true;
+ }
+
+ if(proxyMode() == Client && !_peers.isEmpty()) {
+ qWarning("SignalProxy: only one peer allowed in client mode!");
+ return false;
+ }
+
+ _peers[proxy] = new SignalProxyPeer(this, proxy);
+ proxy->addPeer(this);
+
+ if(_peers.count() == 1)
+ emit connected();
+
+ updateSecureState();
+ return true;
+}
+
+void SignalProxy::removeAllPeers() {
+ Q_ASSERT(proxyMode() == Server || _peers.count() <= 1);
+ // wee need to copy that list since we modify it in the loop
+ QList<QObject *> peers = _peers.keys();
+ foreach(QObject *peer, peers) {
+ removePeer(peer);
}
}
-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();
+void SignalProxy::removePeer(QObject* dev) {
+ if(_peers.isEmpty()) {
+ qWarning() << "SignalProxy::removePeer(): 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);
+ Q_ASSERT(dev);
+ if(!_peers.contains(dev)) {
+ qWarning() << "SignalProxy: unknown Peer" << dev;
+ return;
+ }
+
+ AbstractPeer *peer = _peers[dev];
+ _peers.remove(dev);
+
+ disconnect(dev, 0, this, 0);
+ if(peer->type() == AbstractPeer::IODevicePeer)
+ emit peerRemoved(static_cast<QIODevice *>(dev));
+
+ if(peer->type() == AbstractPeer::SignalProxyPeer) {
+ SignalProxy *proxy = static_cast<SignalProxy *>(dev);
+ if(proxy->_peers.contains(this))
+ proxy->removePeer(this);
}
- foreach(SignalDesc sig, attachedSignals) {
- conn.peer->attachSignal(sig.sender, sig.signal, sig.rpcFunction);
+
+ if(dev->parent() == this)
+ dev->deleteLater();
+
+ delete peer;
+
+ updateSecureState();
+
+ if(_peers.isEmpty())
+ emit disconnected();
+}
+
+void SignalProxy::removePeerBySender() {
+ removePeer(sender());
+}
+
+void SignalProxy::objectRenamed(const QString &newname, const QString &oldname) {
+ SyncableObject *syncObject = qobject_cast<SyncableObject *>(sender());
+ const QMetaObject *meta = syncObject->syncMetaObject();
+ const QByteArray className(meta->className());
+ objectRenamed(className, newname, oldname);
+
+ if(proxyMode() == Client)
+ return;
+
+ QVariantList params;
+ params << "__objectRenamed__" << className << newname << oldname;
+ dispatchSignal(RpcCall, params);
+}
+
+void SignalProxy::objectRenamed(const QByteArray &classname, const QString &newname, const QString &oldname) {
+ if(_syncSlave.contains(classname) && _syncSlave[classname].contains(oldname) && oldname != newname) {
+ SyncableObject *obj = _syncSlave[classname][newname] = _syncSlave[classname].take(oldname);
+ requestInit(obj);
}
- peers.append(conn);
+}
+const QMetaObject *SignalProxy::metaObject(const QObject *obj) {
+ if(const SyncableObject *syncObject = qobject_cast<const SyncableObject *>(obj))
+ return syncObject->syncMetaObject();
+ else
+ return obj->metaObject();
}
-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--;
- }
+SignalProxy::ExtendedMetaObject *SignalProxy::extendedMetaObject(const QMetaObject *meta) const {
+ if(_extendedMetaObjects.contains(meta))
+ return _extendedMetaObjects[meta];
+ else
+ return 0;
+}
+
+SignalProxy::ExtendedMetaObject *SignalProxy::createExtendedMetaObject(const QMetaObject *meta) {
+ if(!_extendedMetaObjects.contains(meta)) {
+ _extendedMetaObjects[meta] = new ExtendedMetaObject(meta);
}
+ return _extendedMetaObjects[meta];
}
-void SignalProxy::attachSignal(QObject* sender, const char* signal, const QByteArray& rpcFunction) {
+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;
+ }
+
+ createExtendedMetaObject(meta);
+ _signalRelay->attachSignal(sender, methodId, sigName);
+
disconnect(sender, SIGNAL(destroyed(QObject *)), this, SLOT(detachObject(QObject *)));
connect(sender, SIGNAL(destroyed(QObject *)), this, SLOT(detachObject(QObject *)));
+ return true;
+}
- foreach(Connection conn, peers) {
- conn.peer->attachSignal(sender, signal, rpcFunction);
+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;
}
- attachedSignals.append(SignalDesc(sender, signal, rpcFunction));
-}
-void SignalProxy::attachSlot(const QByteArray& rpcFunction, QObject* recv, const char* slot) {
+ createExtendedMetaObject(meta);
+
+ QByteArray funcName = QMetaObject::normalizedSignature(sigName.constData());
+ _attachedSlots.insert(funcName, qMakePair(recv, methodId));
+
disconnect(recv, SIGNAL(destroyed(QObject *)), this, SLOT(detachObject(QObject *)));
connect(recv, SIGNAL(destroyed(QObject *)), this, SLOT(detachObject(QObject *)));
+ return true;
+}
+
+void SignalProxy::synchronize(SyncableObject *obj) {
+ ExtendedMetaObject *eMeta = createExtendedMetaObject(obj);
+
+ SyncRelay *relay;
+ if(!_syncRelays.contains(obj->syncMetaObject())) {
+ _syncRelays[obj->syncMetaObject()] = new SyncRelay(eMeta, this);
+ }
+ relay = _syncRelays[obj->syncMetaObject()];
+
+ relay->synchronize(obj);
+
+ // attaching as slave to receive sync Calls
+ QByteArray className(obj->syncMetaObject()->className());
+ _syncSlave[className][obj->objectName()] = obj;
+ disconnect(obj, SIGNAL(destroyed(QObject *)), this, SLOT(detachObject(QObject *)));
+ connect(obj, SIGNAL(destroyed(QObject *)), this, SLOT(detachObject(QObject *)));
+
+ if(proxyMode() == Server) {
+ connect(obj, SIGNAL(objectRenamed(QString, QString)), this, SLOT(objectRenamed(QString, QString)));
+ obj->setInitialized();
+ emit objectInitialized(obj);
+ } else {
+ if(obj->isInitialized())
+ emit objectInitialized(obj);
+ else
+ requestInit(obj);
+ }
+}
+
+void SignalProxy::detachObject(QObject *obj) {
+ stopSync(obj);
+ detachSignals(obj);
+ detachSlots(obj);
+}
+
+void SignalProxy::detachSignals(QObject *sender) {
+ _signalRelay->detachSignal(sender);
+}
+
+void SignalProxy::detachSlots(QObject* receiver) {
+ SlotHash::iterator slotIter = _attachedSlots.begin();
+ while(slotIter != _attachedSlots.end()) {
+ if(slotIter.value().first == receiver) {
+ slotIter = _attachedSlots.erase(slotIter);
+ } else
+ slotIter++;
+ }
+}
+
+void SignalProxy::stopSync(QObject *obj) {
+ SyncableObject *syncableObject = qobject_cast<SyncableObject *>(obj);
+ if(syncableObject && _syncRelays.contains(syncableObject->syncMetaObject())) {
+ QObject::disconnect(syncableObject, 0, _syncRelays[syncableObject->syncMetaObject()], 0);
+ }
+
+ // we can't use a className here, since it might be effed up, if we receive the call as a result of a decon
+ // gladly the objectName() is still valid. So we have only to iterate over the classes not each instance! *sigh*
+ QHash<QByteArray, ObjectId>::iterator classIter = _syncSlave.begin();
+ while(classIter != _syncSlave.end()) {
+ if(classIter->contains(obj->objectName()) && classIter.value()[obj->objectName()] == obj) {
+ classIter->remove(obj->objectName());
+ break;
+ }
+ classIter++;
+ }
+}
+
+void SignalProxy::dispatchSignal(const RequestType &requestType, const QVariantList ¶ms) {
+ QVariant packedFunc(QVariantList() << (qint16)requestType << params);
+ PeerHash::iterator peer = _peers.begin();
+ while(peer != _peers.end()) {
+ switch((*peer)->type()) {
+ case AbstractPeer::IODevicePeer:
+ {
+ IODevicePeer *ioPeer = static_cast<IODevicePeer *>(*peer);
+ if(ioPeer->isOpen())
+ ioPeer->dispatchPackedFunc(packedFunc);
+ else
+ QCoreApplication::postEvent(this, new RemovePeerEvent(peer.key()));
+ }
+ break;
+ case AbstractPeer::SignalProxyPeer:
+ (*peer)->dispatchSignal(requestType, params);
+ break;
+ default:
+ Q_ASSERT(false); // there shouldn't be any peers with wrong / unknown type
+ }
+ peer++;
+ }
+}
+
+void SignalProxy::receivePackedFunc(AbstractPeer *sender, const QVariant &packedFunc) {
+ QVariantList params(packedFunc.toList());
+
+ if(params.isEmpty()) {
+ qWarning() << "SignalProxy::receivePeerSignal(): received incompatible Data:" << packedFunc;
+ return;
+ }
+
+ RequestType requestType = (RequestType)params.takeFirst().value<int>();
+ receivePeerSignal(sender, requestType, params);
+}
+
+void SignalProxy::receivePeerSignal(AbstractPeer *sender, const RequestType &requestType, const QVariantList ¶ms) {
+ switch(requestType) {
+ // list all RequestTypes that shouldnot trigger a heartbeat counter reset here
+ case HeartBeatReply:
+ break;
+ default:
+ if(sender->type() == AbstractPeer::IODevicePeer) {
+ IODevicePeer *ioPeer = static_cast<IODevicePeer *>(sender);
+ ioPeer->sentHeartBeats = 0;
+ }
+ }
+
+ switch(requestType) {
+ case RpcCall:
+ if(params.empty())
+ qWarning() << "SignalProxy::receivePeerSignal(): received empty RPC-Call";
+ else
+ handleSignal(params);
+ //handleSignal(params.takeFirst().toByteArray(), params);
+ break;
+
+ case Sync:
+ handleSync(sender, params);
+ break;
+
+ case InitRequest:
+ handleInitRequest(sender, params);
+ break;
+
+ case InitData:
+ handleInitData(sender, params);
+ break;
+
+ case HeartBeat:
+ receiveHeartBeat(sender, params);
+ break;
+
+ case HeartBeatReply:
+ receiveHeartBeatReply(sender, params);
+ break;
+
+ default:
+ qWarning() << "SignalProxy::receivePeerSignal(): received undefined CallType" << requestType << params;
+ }
+}
+
+void SignalProxy::receivePeerSignal(SignalProxy *sender, const RequestType &requestType, const QVariantList ¶ms) {
+ if(!_peers.contains(sender)) {
+ // we output only the pointer value. otherwise Qt would try to pretty print. As the object might already been destroyed, this is not a good idea.
+ qWarning() << "SignalProxy::receivePeerSignal(): received Signal from unknown Proxy" << reinterpret_cast<void *>(sender);
+ return;
+ }
+ receivePeerSignal(_peers[sender], requestType, params);
+}
+
+void SignalProxy::handleSync(AbstractPeer *sender, QVariantList params) {
+ if(params.count() < 3) {
+ qWarning() << "received invalid Sync call" << params;
+ return;
+ }
+
+ QByteArray className = params.takeFirst().toByteArray();
+ QString objectName = params.takeFirst().toString();
+ QByteArray signal = params.takeFirst().toByteArray();
+
+ if(!_syncSlave.contains(className) || !_syncSlave[className].contains(objectName)) {
+ qWarning() << QString("no registered receiver for sync call: %1::%2 (objectName=\"%3\"). Params are:").arg(QString(className)).arg(QString(signal)).arg(objectName)
+ << params;
+ return;
+ }
+
+ SyncableObject *receiver = _syncSlave[className][objectName];
+ ExtendedMetaObject *eMeta = extendedMetaObject(receiver);
+ if(!eMeta->syncMap().contains(signal)) {
+ qWarning() << QString("no matching slot for sync call: %1::%2 (objectName=\"%3\"). Params are:").arg(QString(className)).arg(QString(signal)).arg(objectName)
+ << params;
+ return;
+ }
+
+ int slotId = eMeta->syncMap()[signal];
+
+ QVariant returnValue((QVariant::Type)eMeta->returnType(slotId));
+ if(!invokeSlot(receiver, slotId, params, returnValue)) {
+ qWarning("SignalProxy::handleSync(): invokeMethod for \"%s\" failed ", eMeta->methodName(slotId).constData());
+ return;
+ }
+
+ if(returnValue.type() != QVariant::Invalid && eMeta->receiveMap().contains(slotId)) {
+ int receiverId = eMeta->receiveMap()[slotId];
+ QVariantList returnParams;
+ returnParams << className
+ << objectName
+ << QByteArray(receiver->metaObject()->method(receiverId).signature());
+ if(eMeta->argTypes(receiverId).count() > 1)
+ returnParams << params;
+ returnParams << returnValue;
+ sender->dispatchSignal(Sync, returnParams);
+ }
+
+ // send emit update signal
+ invokeSlot(receiver, eMeta->updatedRemotelyId());
+}
+
+void SignalProxy::handleInitRequest(AbstractPeer *sender, const QVariantList ¶ms) {
+ if(params.count() != 2) {
+ qWarning() << "SignalProxy::handleInitRequest() received initRequest with invalid param Count:"
+ << params;
+ return;
+ }
+
+ QByteArray className(params[0].toByteArray());
+ QString objectName(params[1].toString());
+
+ if(!_syncSlave.contains(className)) {
+ qWarning() << "SignalProxy::handleInitRequest() received initRequest for unregistered Class:"
+ << className;
+ return;
+ }
+
+ if(!_syncSlave[className].contains(objectName)) {
+ qWarning() << "SignalProxy::handleInitRequest() received initRequest for unregistered Object:"
+ << className << objectName;
+ return;
+ }
+
+ SyncableObject *obj = _syncSlave[className][objectName];
+
+ QVariantList params_;
+ params_ << className
+ << objectName
+ << initData(obj);
+
+ sender->dispatchSignal(InitData, params_);
+}
+
+void SignalProxy::handleInitData(AbstractPeer *sender, const QVariantList ¶ms) {
+ Q_UNUSED(sender)
+ if(params.count() != 3) {
+ qWarning() << "SignalProxy::handleInitData() received initData with invalid param Count:"
+ << params;
+ return;
+ }
+
+ QByteArray className(params[0].toByteArray());
+ QString objectName(params[1].toString());
+ QVariantMap propertyMap(params[2].toMap());
+
+ if(!_syncSlave.contains(className)) {
+ qWarning() << "SignalProxy::handleInitData() received initData for unregistered Class:"
+ << className;
+ return;
+ }
+
+ if(!_syncSlave[className].contains(objectName)) {
+ qWarning() << "SignalProxy::handleInitData() received initData for unregistered Object:"
+ << className << objectName;
+ return;
+ }
+
+ SyncableObject *obj = _syncSlave[className][objectName];
+ setInitData(obj, propertyMap);
+}
+
+//void SignalProxy::handleSignal(const QByteArray &funcName, const QVariantList ¶ms) {
+void SignalProxy::handleSignal(const QVariantList &data) {
+ QVariantList params = data;
+ QByteArray funcName = params.takeFirst().toByteArray();
+
+ QObject* receiver;
+ int methodId;
+ SlotHash::const_iterator slot = _attachedSlots.constFind(funcName);
+ while(slot != _attachedSlots.constEnd() && slot.key() == funcName) {
+ receiver = (*slot).first;
+ methodId = (*slot).second;
+ if(!invokeSlot(receiver, methodId, params)) {
+ ExtendedMetaObject *eMeta = extendedMetaObject(receiver);
+ qWarning("SignalProxy::handleSignal(): invokeMethod for \"%s\" failed ", eMeta->methodName(methodId).constData());
+ }
+ slot++;
+ }
+}
+
+bool SignalProxy::invokeSlot(QObject *receiver, int methodId, const QVariantList ¶ms, QVariant &returnValue) {
+ ExtendedMetaObject *eMeta = extendedMetaObject(receiver);
+ const QList<int> args = eMeta->argTypes(methodId);
+ const int numArgs = params.count() < args.count()
+ ? params.count()
+ : args.count();
+
+ if(eMeta->minArgCount(methodId) > params.count()) {
+ qWarning() << "SignalProxy::invokeSlot(): not enough params to invoke" << eMeta->methodName(methodId);
+ return false;
+ }
+
+ void *_a[] = {0, // return type...
+ 0, 0, 0, 0 , 0, // and 10 args - that's the max size qt can handle with signals and slots
+ 0, 0, 0, 0 , 0};
+
+ // check for argument compatibility and build params array
+ for(int i = 0; i < numArgs; i++) {
+ if(!params[i].isValid()) {
+ qWarning() << "SignalProxy::invokeSlot(): received invalid data for argument number" << i << "of method" << QString("%1::%2()").arg(receiver->metaObject()->className()).arg(receiver->metaObject()->method(methodId).signature());
+ qWarning() << " - make sure all your data types are known by the Qt MetaSystem";
+ return false;
+ }
+ if(args[i] != QMetaType::type(params[i].typeName())) {
+ qWarning() << "SignalProxy::invokeSlot(): incompatible param types to invoke" << eMeta->methodName(methodId);
+ return false;
+ }
+ _a[i+1] = const_cast<void *>(params[i].constData());
+ }
+
+ if(returnValue.type() != QVariant::Invalid)
+ _a[0] = const_cast<void *>(returnValue.constData());
+
+ Qt::ConnectionType type = QThread::currentThread() == receiver->thread()
+ ? Qt::DirectConnection
+ : Qt::QueuedConnection;
+
+ if(type == Qt::DirectConnection) {
+ return receiver->qt_metacall(QMetaObject::InvokeMetaMethod, methodId, _a) < 0;
+ } else {
+ qWarning() << "Queued Connections are not implemented yet";
+ // note to self: qmetaobject.cpp:990 ff
+ return false;
+ }
+
+}
+
+bool SignalProxy::invokeSlot(QObject *receiver, int methodId, const QVariantList ¶ms) {
+ QVariant ret;
+ return invokeSlot(receiver, methodId, params, ret);
+}
+
+void SignalProxy::dataAvailable() {
+ // yet again. it's a private slot. no need for checks.
+ QIODevice* ioDev = qobject_cast<QIODevice* >(sender());
+ Q_ASSERT(_peers.contains(ioDev) && _peers[ioDev]->type() == AbstractPeer::IODevicePeer);
+ IODevicePeer *peer = static_cast<IODevicePeer *>(_peers[ioDev]);
+ QVariant var;
+ while(peer->readData(var))
+ receivePackedFunc(peer, var);
+}
+
+void SignalProxy::writeDataToDevice(QIODevice *dev, const QVariant &item, bool compressed) {
+ QAbstractSocket* sock = qobject_cast<QAbstractSocket*>(dev);
+ if(!dev->isOpen() || (sock && sock->state()!=QAbstractSocket::ConnectedState)) {
+ qWarning("SignalProxy: Can't call write on a closed device");
+ return;
+ }
+
+ QByteArray block;
+ QDataStream out(&block, QIODevice::WriteOnly);
+ out.setVersion(QDataStream::Qt_4_2);
+ out << (quint32)0;
+
+ if(compressed) {
+ QByteArray rawItem;
+ QDataStream itemStream(&rawItem, QIODevice::WriteOnly);
+
+ itemStream.setVersion(QDataStream::Qt_4_2);
+ itemStream << item;
+
+ rawItem = qCompress(rawItem);
+
+ out << rawItem;
+ } else {
+ out << item;
+ }
+
+ out.device()->seek(0);
+ out << (quint32)(block.size() - sizeof(quint32));
+
+ dev->write(block);
+}
+
+bool SignalProxy::readDataFromDevice(QIODevice *dev, quint32 &blockSize, QVariant &item, bool compressed) {
+ if(!dev)
+ return false;
+
+ QDataStream in(dev);
+ in.setVersion(QDataStream::Qt_4_2);
+
+ if(blockSize == 0) {
+ if(dev->bytesAvailable() < (int)sizeof(quint32)) return false;
+ in >> blockSize;
+ }
+
+ if(blockSize > 1 << 22) {
+ disconnectDevice(dev, tr("Peer tried to send package larger than max package size!"));
+ return false;
+ }
+
+ if(blockSize == 0) {
+ disconnectDevice(dev, tr("Peer tried to send 0 byte package!"));
+ return false;
+ }
+
+ if(dev->bytesAvailable() < blockSize)
+ return false;
+
+ blockSize = 0;
+
+ if(compressed) {
+ QByteArray rawItem;
+ in >> rawItem;
+
+ int nbytes = rawItem.size();
+ if(nbytes <= 4) {
+ const char *data = rawItem.constData();
+ if(nbytes < 4 || (data[0]!=0 || data[1]!=0 || data[2]!=0 || data[3]!=0)) {
+ disconnectDevice(dev, tr("Peer sent corrupted compressed data!"));
+ return false;
+ }
+ }
+
+ rawItem = qUncompress(rawItem);
+
+ QDataStream itemStream(&rawItem, QIODevice::ReadOnly);
+ itemStream.setVersion(QDataStream::Qt_4_2);
+ itemStream >> item;
+ } else {
+ in >> item;
+ }
+
+ if(!item.isValid()) {
+ disconnectDevice(dev, tr("Peer sent corrupt data: unable to load QVariant!"));
+ return false;
+ }
- foreach(Connection conn, peers) {
- conn.peer->attachSlot(rpcFunction, recv, slot);
+ return true;
+}
+
+void SignalProxy::requestInit(SyncableObject *obj) {
+ if(proxyMode() == Server || obj->isInitialized())
+ return;
+
+ QVariantList params;
+ params << obj->syncMetaObject()->className()
+ << obj->objectName();
+ dispatchSignal(InitRequest, params);
+}
+
+QVariantMap SignalProxy::initData(SyncableObject *obj) const {
+ return obj->toVariantMap();
+}
+
+void SignalProxy::setInitData(SyncableObject *obj, const QVariantMap &properties) {
+ if(obj->isInitialized())
+ return;
+ obj->fromVariantMap(properties);
+ obj->setInitialized();
+ emit objectInitialized(obj);
+ invokeSlot(obj, extendedMetaObject(obj)->updatedRemotelyId());
+}
+
+void SignalProxy::sendHeartBeat() {
+ QVariantList heartBeatParams;
+ heartBeatParams << QTime::currentTime();
+ PeerHash::iterator peer = _peers.begin();
+ while(peer != _peers.end()) {
+ if((*peer)->type() == AbstractPeer::IODevicePeer) {
+ IODevicePeer *ioPeer = static_cast<IODevicePeer *>(*peer);
+ ioPeer->dispatchSignal(SignalProxy::HeartBeat, heartBeatParams);
+ if(ioPeer->sentHeartBeats > 0) {
+ updateLag(ioPeer, ioPeer->sentHeartBeats * _heartBeatTimer.interval());
+ }
+ if(ioPeer->sentHeartBeats > 1) {
+ qWarning() << "SignalProxy: Disconnecting peer:" << ioPeer->address()
+ << "(didn't receive a heartbeat for over" << ioPeer->sentHeartBeats * _heartBeatTimer.interval() / 1000 << "seconds)";
+ ioPeer->close();
+ } else {
+ ioPeer->sentHeartBeats++;
+ }
+ }
+ peer++;
+ }
+}
+
+void SignalProxy::receiveHeartBeat(AbstractPeer *peer, const QVariantList ¶ms) {
+ peer->dispatchSignal(SignalProxy::HeartBeatReply, params);
+}
+
+void SignalProxy::receiveHeartBeatReply(AbstractPeer *peer, const QVariantList ¶ms) {
+ if(peer->type() != AbstractPeer::IODevicePeer) {
+ qWarning() << "SignalProxy::receiveHeartBeatReply: received heart beat from a non IODevicePeer!";
+ return;
+ }
+
+ IODevicePeer *ioPeer = static_cast<IODevicePeer *>(peer);
+ ioPeer->sentHeartBeats = 0;
+
+ if(params.isEmpty()) {
+ qWarning() << "SignalProxy: received heart beat reply with less params then sent from:" << ioPeer->address();
+ return;
+ }
+
+ QTime sendTime = params[0].value<QTime>();
+ updateLag(ioPeer, sendTime.msecsTo(QTime::currentTime()) / 2);
+}
+
+void SignalProxy::customEvent(QEvent *event) {
+ switch(event->type()) {
+ case PeerSignal:
+ {
+ PeerSignalEvent *e = static_cast<PeerSignalEvent *>(event);
+ receivePeerSignal(e->sender, e->requestType, e->params);
+ }
+ event->accept();
+ break;
+ case RemovePeer:
+ {
+ RemovePeerEvent *e = static_cast<RemovePeerEvent *>(event);
+ removePeer(e->peer);
+ }
+ event->accept();
+ default:
+ return;
+ }
+}
+
+void SignalProxy::disconnectDevice(QIODevice *dev, const QString &reason) {
+ if(!reason.isEmpty())
+ qWarning() << qPrintable(reason);
+ QAbstractSocket *sock = qobject_cast<QAbstractSocket *>(dev);
+ if(sock)
+ qWarning() << qPrintable(tr("Disconnecting")) << qPrintable(sock->peerAddress().toString());
+ dev->close();
+}
+
+void SignalProxy::updateLag(IODevicePeer *peer, int lag) {
+ peer->lag = lag;
+ if(proxyMode() == Client) {
+ emit lagUpdated(lag);
+ }
+}
+
+void SignalProxy::dumpProxyStats() {
+ QString mode;
+ if(proxyMode() == Server)
+ mode = "Server";
+ else
+ mode = "Client";
+
+ int sigCount = 0;
+ foreach(SyncRelay *relay, _syncRelays.values())
+ sigCount += relay->signalCount();
+
+ int slaveCount = 0;
+ foreach(ObjectId oid, _syncSlave.values())
+ slaveCount += oid.count();
+
+ qDebug() << this;
+ qDebug() << " Proxy Mode:" << mode;
+ // qDebug() << "attached sending Objects:" << _relayHash.count();
+ qDebug() << " number of Signals:" << sigCount;
+ qDebug() << " attached Slots:" << _attachedSlots.count();
+ qDebug() << " number of synced Slaves:" << slaveCount;
+ qDebug() << "number of Classes cached:" << _extendedMetaObjects.count();
+}
+
+void SignalProxy::dumpSyncMap(SyncableObject *object) {
+ const QMetaObject *meta = object->metaObject();
+ ExtendedMetaObject *eMeta = extendedMetaObject(object);
+ qDebug() << "SignalProxy: SyncMap for Class" << meta->className();
+
+ QHash<QByteArray, int> syncMap_ = eMeta->syncMap();
+ QHash<QByteArray, int>::const_iterator iter = syncMap_.constBegin();
+ while(iter != syncMap_.constEnd()) {
+ qDebug() << qPrintable(QString("%1 --> %2 %3").arg(QString(iter.key()), 40).arg(iter.value()).arg(QString(meta->method(iter.value()).signature())));
+ iter++;
+ }
+}
+
+void SignalProxy::updateSecureState() {
+ bool wasSecure = _secure;
+
+ _secure = !_peers.isEmpty();
+ PeerHash::const_iterator peerIter;
+ for(peerIter = _peers.constBegin(); peerIter != _peers.constEnd(); peerIter++) {
+ _secure &= (*peerIter)->isSecure();
+ }
+
+ if(wasSecure != _secure)
+ emit secureStateChanged(_secure);
+}
+
+
+// ==================================================
+// ExtendedMetaObject
+// ==================================================
+SignalProxy::ExtendedMetaObject::ExtendedMetaObject(const QMetaObject *meta)
+ : _meta(meta),
+ _updatedRemotelyId(-1)
+{
+}
+
+const QList<int> &SignalProxy::ExtendedMetaObject::argTypes(int methodId) {
+ if(!_argTypes.contains(methodId)) {
+ QList<QByteArray> paramTypes = _meta->method(methodId).parameterTypes();
+ QList<int> argTypes;
+ for(int i = 0; i < paramTypes.count(); i++) {
+ argTypes.append(QMetaType::type(paramTypes[i]));
+ }
+ _argTypes[methodId] = argTypes;
+ }
+ return _argTypes[methodId];
+}
+
+const int &SignalProxy::ExtendedMetaObject::returnType(int methodId) {
+ if(!_returnType.contains(methodId)) {
+ _returnType[methodId] = QMetaType::type(_meta->method(methodId).typeName());
+ }
+ return _returnType[methodId];
+}
+
+const int &SignalProxy::ExtendedMetaObject::minArgCount(int methodId) {
+ if(!_minArgCount.contains(methodId)) {
+ QString signature(_meta->method(methodId).signature());
+ _minArgCount[methodId] = _meta->method(methodId).parameterTypes().count() - signature.count("=");
+ }
+ return _minArgCount[methodId];
+}
+
+const QByteArray &SignalProxy::ExtendedMetaObject::methodName(int methodId) {
+ if(!_methodNames.contains(methodId)) {
+ _methodNames[methodId] = methodName(_meta->method(methodId));
+ }
+ return _methodNames[methodId];
+}
+
+const QHash<QByteArray, int> &SignalProxy::ExtendedMetaObject::syncMap() {
+ if(_syncMap.isEmpty()) {
+ QHash<QByteArray, int> syncMap;
+
+ QList<int> slotIndexes;
+ for(int i = 0; i < _meta->methodCount(); i++) {
+ if(_meta->method(i).methodType() == QMetaMethod::Slot)
+ slotIndexes << i;
+ }
+
+ // we're faking sync pairs for sync replies
+ // --> we deliver to every slot starting with "receive"
+ QByteArray slotSignature;
+ QList<int>::iterator slotIter = slotIndexes.begin();
+ while(slotIter != slotIndexes.end()) {
+ slotSignature = QByteArray(_meta->method(*slotIter).signature());
+ if(slotSignature.startsWith("receive")) {
+ syncMap[slotSignature] = *slotIter;
+ slotIter = slotIndexes.erase(slotIter);
+ } else {
+ slotIter++;
+ }
+ }
+
+ // find the proper sig -> slot matches
+ QMetaMethod signal, slot;
+ int matchIdx;
+ for(int signalIdx = 0; signalIdx < _meta->methodCount(); signalIdx++) {
+ signal = _meta->method(signalIdx);
+ if(signal.methodType() != QMetaMethod::Signal)
+ continue;
+
+ matchIdx = -1;
+ foreach(int slotIdx, slotIndexes) {
+ slot = _meta->method(slotIdx);
+ if(methodsMatch(signal, slot)) {
+ matchIdx = slotIdx;
+ break;
+ }
+ }
+ if(matchIdx != -1) {
+ slotIndexes.removeAll(matchIdx);
+ syncMap[QByteArray(signal.signature())] = matchIdx;
+ }
+ }
+ _syncMap = syncMap;
}
- attachedSlots.append(SlotDesc(rpcFunction, recv, slot));
+ return _syncMap;
}
-void SignalProxy::detachObject(QObject* obj) {
- //Q_ASSERT(false); // not done yet
- foreach(Connection conn, peers) {
- conn.peer->detachObject(obj);
+const QHash<int, int> &SignalProxy::ExtendedMetaObject::receiveMap() {
+ if(_receiveMap.isEmpty()) {
+ QHash<int, int> receiveMap;
+
+ QMetaMethod requestSlot;
+ QByteArray returnTypeName;
+ QByteArray signature;
+ QByteArray methodName;
+ QByteArray params;
+ int paramsPos;
+ int receiverId;
+ const int methodCount = _meta->methodCount();
+ for(int i = 0; i < methodCount; i++) {
+ requestSlot = _meta->method(i);
+ if(requestSlot.methodType() != QMetaMethod::Slot)
+ continue;
+
+ returnTypeName = requestSlot.typeName();
+ if(QMetaType::Void == (QMetaType::Type)returnType(i))
+ continue;
+
+ signature = QByteArray(requestSlot.signature());
+ if(!signature.startsWith("request"))
+ continue;
+
+ paramsPos = signature.indexOf('(');
+ if(paramsPos == -1)
+ continue;
+
+ methodName = signature.left(paramsPos);
+ params = signature.mid(paramsPos);
+
+ methodName = methodName.replace("request", "receive");
+ params = params.left(params.count() - 1) + ", " + returnTypeName + ")";
+
+ signature = QMetaObject::normalizedSignature(methodName + params);
+ receiverId = _meta->indexOfSlot(signature);
+
+ if(receiverId == -1) {
+ signature = QMetaObject::normalizedSignature(methodName + "(" + returnTypeName + ")");
+ receiverId = _meta->indexOfSlot(signature);
+ }
+
+ if(receiverId != -1)
+ receiveMap[i] = receiverId;
+ }
+ _receiveMap = receiveMap;
}
- QList<SignalDesc> sigs;
- foreach(SignalDesc desc, attachedSignals) {
- if(desc.sender != obj) sigs << desc;
+ return _receiveMap;
+}
+
+int SignalProxy::ExtendedMetaObject::updatedRemotelyId() {
+ if(_updatedRemotelyId == -1) {
+ _updatedRemotelyId = _meta->indexOfSignal("updatedRemotely()");
}
- attachedSignals = sigs;
- QList<SlotDesc> slot;
- foreach(SlotDesc desc, attachedSlots) {
- if(desc.recv != obj) slot << desc;
+ return _updatedRemotelyId;
+}
+
+QByteArray SignalProxy::ExtendedMetaObject::methodName(const QMetaMethod &method) {
+ QByteArray sig(method.signature());
+ return sig.left(sig.indexOf("("));
+}
+
+bool SignalProxy::ExtendedMetaObject::methodsMatch(const QMetaMethod &signal, const QMetaMethod &slot) {
+ // if we don't even have the same basename it's a sure NO
+ QString baseName = methodBaseName(signal);
+ if(baseName != methodBaseName(slot))
+ return false;
+
+ // are the signatures compatible?
+ if(!QObject::staticMetaObject.checkConnectArgs(signal.signature(), slot.signature()))
+ return false;
+
+ // we take an educated guess if the signals and slots match
+ QString signalsuffix = methodName(signal);
+ QString slotprefix = methodName(slot);
+ if(!baseName.isEmpty()) {
+ signalsuffix = signalsuffix.mid(baseName.count()).toLower();
+ slotprefix = slotprefix.left(slotprefix.count() - baseName.count()).toLower();
}
- attachedSlots = slot;
- // FIXME: test this!
+
+ uint sizediff = qAbs(slotprefix.size() - signalsuffix.size());
+ int ratio = editingDistance(slotprefix, signalsuffix) - sizediff;
+ return (ratio < 2);
}
-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);
+QString SignalProxy::ExtendedMetaObject::methodBaseName(const QMetaMethod &method) {
+ QString methodname = QString(method.signature()).section("(", 0, 0);
+
+ // determine where we have to chop:
+ int upperCharPos;
+ if(method.methodType() == QMetaMethod::Slot) {
+ // we take evertyhing from the first uppercase char if it's slot
+ upperCharPos = methodname.indexOf(QRegExp("[A-Z]"));
+ if(upperCharPos == -1)
+ return QString();
+ methodname = methodname.mid(upperCharPos);
+ } else {
+ // and if it's a signal we discard everything from the last uppercase char
+ upperCharPos = methodname.lastIndexOf(QRegExp("[A-Z]"));
+ if(upperCharPos == -1)
+ return QString();
+ methodname = methodname.left(upperCharPos);
}
+
+ methodname[0] = methodname[0].toUpper();
+
+ return methodname;
}
projects / quassel.git / blobdiff