/***************************************************************************
- * Copyright (C) 2005-07 by the Quassel IRC 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 *
***************************************************************************/
#include "signalproxy.h"
+
#include <QObject>
#include <QIODevice>
#include <QAbstractSocket>
+#include <QHostAddress>
#include <QHash>
#include <QMultiHash>
#include <QList>
#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"
-class SignalRelay: public QObject {
+// ==================================================
+// 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:
- SignalRelay(SignalProxy* parent, QObject* source);
+ 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(int methodId, const QByteArray &func);
+ void attachSignal(QObject *sender, int signalId, const QByteArray &funcName);
+ void detachSignal(QObject *sender, int signalId = -1);
- void setSynchronize(bool);
- bool synchronize() const;
-
- int sigCount() const;
-
private:
- SignalProxy* proxy;
- QObject* caller;
- QMultiHash<int, QByteArray> sigNames;
- bool _sync;
+ 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;
};
-SignalRelay::SignalRelay(SignalProxy* parent, QObject* source)
- : QObject(parent),
- proxy(parent),
- caller(source),
- _sync(false)
+SignalProxy::SyncRelay::SyncRelay(SignalProxy::ExtendedMetaObject *eMeta, SignalProxy *parent)
+ : Relay(parent),
+ _eMeta(eMeta)
{
- QObject::connect(source, SIGNAL(destroyed()), parent, SLOT(detachSender()));
+ 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 SignalRelay::qt_metacall(QMetaObject::Call _c, int _id, void **_a) {
+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(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);
+ 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]);
}
- _id -= 1;
+
+ proxy()->dispatchSignal(SignalProxy::Sync, params);
}
+ _id -= _signalCount;
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++;
+
+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;
}
- } else if (_sync && !sync) {
- while(iter != proxy->syncMap(caller).constEnd()) {
- QMetaObject::disconnect(caller, iter.key(), this, QObject::staticMetaObject.methodCount() + iter.key());
- iter++;
+ }
+
+ 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 {
+ slotIter++;
}
}
- _sync = sync;
}
-bool SignalRelay::synchronize() const {
- return _sync;
+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;
}
-int SignalRelay::sigCount() const {
- // only for debuging purpose
- return sigNames.count();
+// ==================================================
+// Peers
+// ==================================================
+void SignalProxy::IODevicePeer::dispatchSignal(const RequestType &requestType, const QVariantList ¶ms) {
+ QVariantList packedFunc;
+ packedFunc << (qint16)requestType
+ << params;
+ dispatchPackedFunc(QVariant(packedFunc));
}
-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);
+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
- QByteArray fn;
- if(!func.isEmpty()) {
- fn = QMetaObject::normalizedSignature(func);
+ 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 {
- fn = QByteArray("2") + caller->metaObject()->method(methodId).signature();
+ QCoreApplication::postEvent(receiver, new PeerSignalEvent(sender, requestType, params));
}
- sigNames.insert(methodId, fn);
}
-// ====================
-// END SIGNALRELAY
-// ====================
-
-// ====================
+// ==================================================
// 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)
{
setProxyMode(mode);
addPeer(device);
-}
+ init();
+}
SignalProxy::~SignalProxy() {
- QList<QObject*> senders = _relayHash.keys();
- foreach(QObject* sender, senders)
- detachObject(sender);
+ removeAllPeers();
}
void SignalProxy::setProxyMode(ProxyMode mode) {
- foreach(QIODevice* peer, _peerByteCount.keys()) {
- if(peer->isOpen()) {
- qWarning() << "SignalProxy: Cannot change proxy mode while connected";
+ 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();
initClient();
}
-SignalProxy::ProxyMode SignalProxy::proxyMode() const {
- return _proxyMode;
+void SignalProxy::init() {
+ _signalRelay = new SignalRelay(this);
+ connect(&_heartBeatTimer, SIGNAL(timeout()), this, SLOT(sendHeartBeat()));
+ _heartBeatTimer.start(30 * 1000);
+ _secure = false;
+ updateSecureState();
}
void SignalProxy::initServer() {
bool SignalProxy::addPeer(QIODevice* iodev) {
if(!iodev)
return false;
-
- if(_peerByteCount.contains(iodev))
+
+ if(_peers.contains(iodev))
return true;
- if(proxyMode() == Client && !_peerByteCount.isEmpty()) {
+ if(proxyMode() == Client && !_peers.isEmpty()) {
qWarning("SignalProxy: only one peer allowed in client mode!");
return false;
}
- if(!iodev->isOpen())
- qWarning("SignalProxy::the device you passed is not open!");
+ 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()));
- QAbstractSocket* sock = qobject_cast<QAbstractSocket*>(iodev);
- if(sock) {
- connect(sock, SIGNAL(disconnected()), this, SLOT(removePeerBySender()));
+#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);
- _peerByteCount[iodev] = 0;
+ _peers[iodev] = new IODevicePeer(iodev, iodev->property("UseCompression").toBool());
- if(_peerByteCount.count() == 1)
+ if(_peers.count() == 1)
emit connected();
+ updateSecureState();
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);
-}
+bool SignalProxy::addPeer(SignalProxy* proxy) {
+ if(!proxy)
+ return false;
-void SignalProxy::objectRenamed(QString oldname, QString newname) {
- const QMetaObject *meta = sender()->metaObject();
- const QByteArray className(meta->className());
- objectRenamed(className, oldname, newname);
+ if(proxyMode() == proxy->proxyMode()) {
+ qWarning() << "SignalProxy::addPeer(): adding a SignalProxy as peer requires one proxy to be server and one client!";
+ return false;
+ }
- if(proxyMode() == Client)
- return;
-
- QVariantList params;
- params << className << oldname << newname;
- dispatchSignal("__objectRenamed__", params);
-}
+ if(_peers.contains(proxy)) {
+ return true;
+ }
-void SignalProxy::objectRenamed(QByteArray classname, QString oldname, QString newname) {
- if(_syncSlave.contains(classname) && _syncSlave[classname].contains(oldname))
- _syncSlave[classname][newname] = _syncSlave[classname].take(oldname);
+ 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::removePeer(QIODevice* iodev) {
- if(_peerByteCount.isEmpty()) {
- qWarning() << "SignalProxy: No peers in use!";
+void SignalProxy::removePeer(QObject* dev) {
+ if(_peers.isEmpty()) {
+ qWarning() << "SignalProxy::removePeer(): No peers in use!";
return;
}
- if(proxyMode() == Server && !iodev) {
- // disconnect all
- QList<QIODevice *> peers = _peerByteCount.keys();
- foreach(QIODevice *peer, peers)
- removePeer(peer);
+ Q_ASSERT(dev);
+ if(!_peers.contains(dev)) {
+ qWarning() << "SignalProxy: unknown Peer" << dev;
+ return;
}
- if(proxyMode() != Server && !iodev)
- iodev = _peerByteCount.keys().first();
+ AbstractPeer *peer = _peers[dev];
+ _peers.remove(dev);
- Q_ASSERT(iodev);
+ disconnect(dev, 0, this, 0);
+ if(peer->type() == AbstractPeer::IODevicePeer)
+ emit peerRemoved(static_cast<QIODevice *>(dev));
- if(!_peerByteCount.contains(iodev)) {
- qWarning() << "SignalProxy: unknown QIODevice" << iodev;
- return;
- }
-
- // take a last gasp
- while(true) {
- QVariant var;
- if(readDataFromDevice(iodev, _peerByteCount[iodev], var))
- receivePeerSignal(iodev, var);
- else
- break;
+ if(peer->type() == AbstractPeer::SignalProxyPeer) {
+ SignalProxy *proxy = static_cast<SignalProxy *>(dev);
+ if(proxy->_peers.contains(this))
+ proxy->removePeer(this);
}
- _peerByteCount.remove(iodev);
-
- disconnect(iodev, 0, this, 0);
- emit peerRemoved(iodev);
- if(_peerByteCount.isEmpty())
- emit disconnected();
-}
+ if(dev->parent() == this)
+ dev->deleteLater();
-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)));
+ delete peer;
- Q_ASSERT(!_classInfo[meta]->argTypes.contains(methodId));
- _classInfo[meta]->argTypes[methodId] = argTypes;
-}
+ updateSecureState();
-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::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;
+ if(_peers.isEmpty())
+ emit disconnected();
}
-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::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);
-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;
- }
+ if(proxyMode() == Client)
+ return;
- QMetaMethod signal, slot;
- int matchIdx;
- for(int signalIdx = 0; signalIdx < meta->methodCount(); signalIdx++) {
- signal = meta->method(signalIdx);
- if(signal.methodType() != QMetaMethod::Signal)
- continue;
+ QVariantList params;
+ params << "__objectRenamed__" << className << newname << oldname;
+ dispatchSignal(RpcCall, params);
+}
- 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;
- }
+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);
}
+}
- Q_ASSERT(_classInfo[meta]->syncMap.isEmpty());
- _classInfo[meta]->syncMap = syncMap;
+const QMetaObject *SignalProxy::metaObject(const QObject *obj) {
+ if(const SyncableObject *syncObject = qobject_cast<const SyncableObject *>(obj))
+ return syncObject->syncMetaObject();
+ else
+ return obj->metaObject();
}
-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;
+SignalProxy::ExtendedMetaObject *SignalProxy::extendedMetaObject(const QMetaObject *meta) const {
+ if(_extendedMetaObjects.contains(meta))
+ return _extendedMetaObjects[meta];
+ else
+ return 0;
}
-void SignalProxy::createClassInfo(QObject *obj) {
- if(!_classInfo.contains(obj->metaObject()))
- _classInfo[obj->metaObject()] = new ClassInfo();
+SignalProxy::ExtendedMetaObject *SignalProxy::createExtendedMetaObject(const QMetaObject *meta) {
+ if(!_extendedMetaObjects.contains(meta)) {
+ _extendedMetaObjects[meta] = new ExtendedMetaObject(meta);
+ }
+ return _extendedMetaObjects[meta];
}
-bool SignalProxy::attachSignal(QObject* sender, const char* signal, const QByteArray& sigName) {
+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());
return false;
}
- createClassInfo(sender);
-
- SignalRelay* relay;
- if(_relayHash.contains(sender))
- relay = _relayHash[sender];
- else
- relay = _relayHash[sender] = new SignalRelay(this, sender);
-
- relay->attachSignal(methodId, sigName);
+ 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;
}
-
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));
return false;
}
- createClassInfo(recv);
+ createExtendedMetaObject(meta);
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()));
+ disconnect(recv, SIGNAL(destroyed(QObject *)), this, SLOT(detachObject(QObject *)));
+ connect(recv, SIGNAL(destroyed(QObject *)), this, SLOT(detachObject(QObject *)));
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)));
-
- 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::synchronize(SyncableObject *obj) {
+ ExtendedMetaObject *eMeta = createExtendedMetaObject(obj);
-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;
-}
+ SyncRelay *relay;
+ if(!_syncRelays.contains(obj->syncMetaObject())) {
+ _syncRelays[obj->syncMetaObject()] = new SyncRelay(eMeta, this);
+ }
+ relay = _syncRelays[obj->syncMetaObject()];
-void SignalProxy::requestInit(QObject *obj) {
- if(proxyMode() == Server || initialized(obj))
- return;
+ relay->synchronize(obj);
- QVariantList params;
- params << obj->metaObject()->className()
- << obj->objectName();
- dispatchSignal((int)InitRequest, params);
-}
+ // 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 *)));
-void SignalProxy::detachSender() {
- // this is a slot so we can bypass the QueuedConnection
- // and if someone is forcing direct connection in a multithreaded environment he's just nuts...
- _detachSignals(sender());
- _detachSlots(sender());
+ 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);
+ }
}
-// 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) {
+void SignalProxy::detachObject(QObject *obj) {
+ stopSync(obj);
detachSignals(obj);
detachSlots(obj);
}
-void SignalProxy::detachSignals(QObject* sender) {
- QMetaObject::invokeMethod(this, "_detachSignals",
- Qt::QueuedConnection,
- Q_ARG(QObject*, sender));
+void SignalProxy::detachSignals(QObject *sender) {
+ _signalRelay->detachSignal(sender);
}
void SignalProxy::detachSlots(QObject* receiver) {
- QMetaObject::invokeMethod(this, "_detachSlots",
- Qt::QueuedConnection,
- Q_ARG(QObject*, receiver));
-}
-
-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) {
}
}
-void SignalProxy::dispatchSignal(QIODevice *receiver, const QVariant &identifier, const QVariantList ¶ms) {
- QVariantList packedFunc;
- packedFunc << identifier;
- packedFunc << params;
- writeDataToDevice(receiver, QVariant(packedFunc));
+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 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::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::receivePeerSignal(QIODevice *sender, const QVariant &packedFunc) {
+void SignalProxy::receivePackedFunc(AbstractPeer *sender, const QVariant &packedFunc) {
QVariantList params(packedFunc.toList());
- QVariant call = params.takeFirst();
- if(call.type() != QVariant::Int)
- return handleSignal(call.toByteArray(), params);
+ 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;
- switch(call.toInt()) {
case Sync:
- return handleSync(params);
+ handleSync(sender, params);
+ break;
+
case InitRequest:
- return handleInitRequest(sender, params);
+ handleInitRequest(sender, params);
+ break;
+
case InitData:
- return handleInitData(sender, params);
+ handleInitData(sender, params);
+ break;
+
+ case HeartBeat:
+ receiveHeartBeat(sender, params);
+ break;
+
+ case HeartBeatReply:
+ receiveHeartBeatReply(sender, params);
+ break;
+
default:
- qWarning() << "received undefined CallType" << call.toInt();
+ 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(QVariantList params) {
+void SignalProxy::handleSync(AbstractPeer *sender, QVariantList params) {
if(params.count() < 3) {
qWarning() << "received invalid Sync call" << params;
return;
}
-
- QByteArray className =params.takeFirst().toByteArray();
+
+ QByteArray className = params.takeFirst().toByteArray();
QString objectName = params.takeFirst().toString();
- int signalId = params.takeFirst().toInt();
+ QByteArray signal = params.takeFirst().toByteArray();
if(!_syncSlave.contains(className) || !_syncSlave[className].contains(objectName)) {
- qWarning() << "no registered receiver:" << className << objectName << "for Sync call" << signalId << params;
+ qWarning() << QString("no registered receiver for sync call: %1::%2 (objectName=\"%3\"). Params are:").arg(QString(className)).arg(QString(signal)).arg(objectName)
+ << params;
return;
}
- 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;
+ 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;
- }
- int slotId = syncMap(receiver)[signalId];
- if(!invokeSlot(receiver, slotId, params))
- qWarning("SignalProxy::handleSync(): invokeMethod for \"%s\" failed ", methodName(receiver, slotId).constData());
+ }
+
+ 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(QIODevice *sender, const QVariantList ¶ms) {
+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;
<< className << objectName;
return;
}
-
- QObject *obj = _syncSlave[className][objectName];
+
+ SyncableObject *obj = _syncSlave[className][objectName];
QVariantList params_;
- params_ << obj->metaObject()->className()
- << obj->objectName()
+ params_ << className
+ << objectName
<< initData(obj);
- dispatchSignal(sender, (int)InitData, params_);
+ sender->dispatchSignal(InitData, params_);
}
-void SignalProxy::handleInitData(QIODevice *sender, const QVariantList ¶ms) {
+void SignalProxy::handleInitData(AbstractPeer *sender, const QVariantList ¶ms) {
Q_UNUSED(sender)
if(params.count() != 3) {
- qWarning() << "SignalProxy::handleInitRequest() received initRequest with invalid param Count:"
+ 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::handleInitRequest() received initRequest for unregistered Class:"
+ qWarning() << "SignalProxy::handleInitData() received initData for unregistered Class:"
<< className;
return;
}
if(!_syncSlave[className].contains(objectName)) {
- qWarning() << "SignalProxy::handleInitRequest() received initRequest for unregistered Object:"
+ qWarning() << "SignalProxy::handleInitData() received initData for unregistered Object:"
<< className << objectName;
return;
}
- QObject *obj = _syncSlave[className][objectName];
+ SyncableObject *obj = _syncSlave[className][objectName];
setInitData(obj, propertyMap);
}
-void SignalProxy::handleSignal(const QByteArray &funcName, const QVariantList ¶ms) {
+//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))
- qWarning("SignalProxy::handleSignal(): invokeMethod for \"%s\" failed ", methodName(receiver, methodId).constData());
+ 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) {
- 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]);
+ 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(readDataFromDevice(ioDev, _peerByteCount[ioDev], var))
- receivePeerSignal(ioDev, var);
+ while(peer->readData(var))
+ receivePackedFunc(peer, var);
}
-void SignalProxy::writeDataToDevice(QIODevice *dev, const QVariant &item) {
+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 on a closed device");
+ 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 << item;
+ 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 SignalProxy::readDataFromDevice(QIODevice *dev, quint32 &blockSize, QVariant &item, bool compressed) {
+ if(!dev)
+ return false;
+
QDataStream in(dev);
in.setVersion(QDataStream::Qt_4_2);
in >> blockSize;
}
- if(dev->bytesAvailable() < blockSize)
+ if(blockSize > 1 << 22) {
+ disconnectDevice(dev, tr("Peer tried to send package larger than max package size!"));
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))
+ if(blockSize == 0) {
+ disconnectDevice(dev, tr("Peer tried to send 0 byte package!"));
return false;
+ }
- // are the signatures compatible?
- if(!QObject::staticMetaObject.checkConnectArgs(signal.signature(), slot.signature()))
+ if(dev->bytesAvailable() < blockSize)
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();
+ blockSize = 0;
- uint sizediff = qAbs(slotprefix.size() - signalsuffix.size());
- int ratio = editingDistance(slotprefix, signalsuffix) - sizediff;
- return (ratio < 2);
-}
+ if(compressed) {
+ QByteArray rawItem;
+ in >> rawItem;
-QString SignalProxy::methodBaseName(const QMetaMethod &method) {
- QString methodname = QString(method.signature()).section("(", 0, 0);
+ 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;
+ }
+ }
- // 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]")));
+ rawItem = qUncompress(rawItem);
+
+ QDataStream itemStream(&rawItem, QIODevice::ReadOnly);
+ itemStream.setVersion(QDataStream::Qt_4_2);
+ itemStream >> item;
} else {
- // and if it's a signal we discard everything from the last uppercase char
- methodname = methodname.left(methodname.lastIndexOf(QRegExp("[A-Z]")));
+ in >> item;
}
- methodname[0] = methodname[0].toUpper();
+ if(!item.isValid()) {
+ disconnectDevice(dev, tr("Peer sent corrupt data: unable to load QVariant!"));
+ return false;
+ }
- return methodname;
+ return true;
}
-QVariantMap SignalProxy::initData(QObject *obj) const {
- QVariantMap properties;
-
- const QMetaObject* meta = obj->metaObject();
+void SignalProxy::requestInit(SyncableObject *obj) {
+ if(proxyMode() == Server || obj->isInitialized())
+ return;
- // 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);
- }
+ QVariantList params;
+ params << obj->syncMetaObject()->className()
+ << obj->objectName();
+ dispatchSignal(InitRequest, params);
+}
- // ...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;
+QVariantMap SignalProxy::initData(SyncableObject *obj) const {
+ return obj->toVariantMap();
+}
- QVariant value = QVariant(QVariant::nameToType(method.typeName()));
- QGenericReturnArgument genericvalue = QGenericReturnArgument(method.typeName(), &value);
- QMetaObject::invokeMethod(obj, methodname.toAscii(), genericvalue);
+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());
+}
- properties[methodBaseName(method)] = value;
- // qDebug() << ">>> SYNC:" << methodBaseName(method) << value;
+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++;
}
-
- // properties["Payload"] = QByteArray(10000000, 'a'); // for testing purposes
- return properties;
}
-void SignalProxy::setInitData(QObject *obj, const QVariantMap &properties) {
- if(initialized(obj))
+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;
+ }
- 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());
+ IODevicePeer *ioPeer = static_cast<IODevicePeer *>(peer);
+ ioPeer->sentHeartBeats = 0;
- 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++;
+ 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;
}
- 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::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() {
mode = "Client";
int sigCount = 0;
- foreach(SignalRelay *relay, _relayHash.values())
- sigCount += relay->sigCount();
+ 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() << "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();
+ qDebug() << "number of Classes cached:" << _extendedMetaObjects.count();
}
-void SignalProxy::dumpSyncMap(QObject *object) {
+void SignalProxy::dumpSyncMap(SyncableObject *object) {
const QMetaObject *meta = object->metaObject();
+ ExtendedMetaObject *eMeta = extendedMetaObject(object);
qDebug() << "SignalProxy: SyncMap for Class" << meta->className();
- QHash<int, int> syncMap_ = syncMap(object);
- QHash<int, int>::const_iterator iter = syncMap_.constBegin();
+ QHash<QByteArray, int> syncMap_ = eMeta->syncMap();
+ QHash<QByteArray, 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();
+ 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;
+ }
+ return _syncMap;
+}
+
+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;
+ }
+ return _receiveMap;
+}
+
+int SignalProxy::ExtendedMetaObject::updatedRemotelyId() {
+ if(_updatedRemotelyId == -1) {
+ _updatedRemotelyId = _meta->indexOfSignal("updatedRemotely()");
+ }
+ 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();
+ }
+
+ uint sizediff = qAbs(slotprefix.size() - signalsuffix.size());
+ int ratio = editingDistance(slotprefix, signalsuffix) - sizediff;
+ return (ratio < 2);
+}
+
+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