/***************************************************************************
- * Copyright (C) 2005-07 by the Quassel IRC Team *
+ * Copyright (C) 2005-08 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 *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
- ***************************************************************************
- * SignalProxy has been inspired by QxtRPCPeer, part of libqxt, *
- * the Qt eXTension Library <http://www.libqxt.org>. We would like to *
- * thank Arvid "aep" Picciani and Adam "ahigerd" Higerd for providing *
- * QxtRPCPeer, valuable input and the genius idea to (ab)use Qt's *
- * Meta Object System for transmitting signals over the network. *
- * *
- * To make contribution back into libqxt possible, redistribution and *
- * modification of this file is additionally allowed under the terms of *
- * the Common Public License, version 1.0, as published by IBM. *
***************************************************************************/
#include "signalproxy.h"
+
#include <QObject>
#include <QIODevice>
#include <QAbstractSocket>
#include <QSet>
#include <QDebug>
#include <QMetaMethod>
+#include <QMetaProperty>
+#include <QRegExp>
+#include <QThread>
+
+#include "syncableobject.h"
+#include "util.h"
class SignalRelay: public QObject {
int qt_metacall(QMetaObject::Call _c, int _id, void **_a);
void attachSignal(int methodId, const QByteArray &func);
+
+ void setSynchronize(bool);
+ bool synchronize() const;
+
+ int sigCount() const;
private:
+ bool isSyncMethod(int i);
+
SignalProxy* proxy;
QObject* caller;
QMultiHash<int, QByteArray> sigNames;
+ bool _sync;
};
SignalRelay::SignalRelay(SignalProxy* parent, QObject* source)
: QObject(parent),
proxy(parent),
- caller(source)
+ caller(source),
+ _sync(false)
{
QObject::connect(source, SIGNAL(destroyed()), parent, SLOT(detachSender()));
}
if(_id < 0)
return _id;
if(_c == QMetaObject::InvokeMetaMethod) {
- if(sigNames.contains(_id)) {
+ 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]));
+ for(int i=0; i<n; 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.append(QVariant(argTypes[i], _a[i+1]));
+ }
QMultiHash<int, QByteArray>::const_iterator funcIter = sigNames.constFind(_id);
while(funcIter != sigNames.constEnd() && funcIter.key() == _id) {
- proxy->call(funcIter.value(), params);
+ proxy->dispatchSignal(SignalProxy::RpcCall, QVariantList() << funcIter.value() << params);
funcIter++;
}
+
+ // dispatch Sync Signal if necessary
+ QByteArray signature(caller->metaObject()->method(_id).signature());
+ SyncableObject *syncObject = qobject_cast<SyncableObject *>(caller);
+ if(synchronize() && proxy->syncMap(syncObject).contains(signature)) {
+ //qDebug() << "__SYNC__ >>>"
+ // << caller->metaObject()->className()
+ // << caller->objectName()
+ // << signature
+ // << params;
+ // params.prepend(QVariant(_id));
+ params.prepend(signature);
+ params.prepend(syncObject->objectName());
+ params.prepend(syncObject->syncMetaObject()->className());
+ proxy->dispatchSignal(SignalProxy::Sync, params);
+ }
}
- _id -= 1;
+ _id -= QObject::staticMetaObject.methodCount();
}
return _id;
}
+void SignalRelay::setSynchronize(bool sync) {
+ SyncableObject *syncObject = qobject_cast<SyncableObject *>(caller);
+ if(!syncObject)
+ return;
+
+ const QMetaObject *meta = syncObject->syncMetaObject();
+ if(!_sync && sync) {
+ // enable Sync
+ for(int i = 0; i < meta->methodCount(); i++ ) {
+ if(isSyncMethod(i))
+ QMetaObject::connect(caller, i, this, QObject::staticMetaObject.methodCount() + i);
+ }
+ } else if (_sync && !sync) {
+ // disable Sync
+ for(int i = 0; i < meta->methodCount(); i++ ) {
+ if(isSyncMethod(i))
+ QMetaObject::disconnect(caller, i, this, QObject::staticMetaObject.methodCount() + i);
+ }
+ }
+ _sync = sync;
+}
+
+bool SignalRelay::isSyncMethod(int i) {
+ SyncableObject *syncObject = qobject_cast<SyncableObject *>(caller);
+ if(!syncObject)
+ return false;
+
+ QByteArray signature = syncObject->syncMetaObject()->method(i).signature();
+ if(!proxy->syncMap(syncObject).contains(signature))
+ return false;
+
+ if(proxy->proxyMode() == SignalProxy::Server && !signature.contains("Requested"))
+ return true;
+
+ if(proxy->proxyMode() == SignalProxy::Client && signature.contains("Requested"))
+ return true;
+
+ return false;
+}
+
+bool SignalRelay::synchronize() const {
+ return _sync;
+}
+
+int SignalRelay::sigCount() const {
+ // only for debuging purpose
+ return sigNames.count();
+}
+
void SignalRelay::attachSignal(int methodId, const QByteArray &func) {
// we ride without safetybelts here... all checking for valid method etc pp has to be done by the caller
// all connected methodIds are offset by the standard methodCount of QObject
sigNames.insert(methodId, fn);
}
// ====================
-// END SIGNALRELAY
+// /SIGNALRELAY
// ====================
// SignalProxy
// ====================
SignalProxy::SignalProxy(QObject* parent)
- : QObject(parent),
- _proxyMode(Client),
- _maxClients(-1)
+ : QObject(parent)
{
+ setProxyMode(Client);
}
SignalProxy::SignalProxy(ProxyMode mode, QObject* parent)
- : QObject(parent),
- _proxyMode(mode),
- _maxClients(-1)
+ : QObject(parent)
{
+ setProxyMode(mode);
}
SignalProxy::SignalProxy(ProxyMode mode, QIODevice* device, QObject* parent)
- : QObject(parent),
- _proxyMode(mode),
- _maxClients(-1)
+ : QObject(parent)
{
+ setProxyMode(mode);
addPeer(device);
}
QList<QObject*> senders = _relayHash.keys();
foreach(QObject* sender, senders)
detachObject(sender);
+
+ // close peer connections
+ foreach(QIODevice *device, _peers.keys()) {
+ device->close();
+ delete device;
+ }
}
void SignalProxy::setProxyMode(ProxyMode mode) {
- foreach(QIODevice* peer, _peerByteCount.keys()) {
+ foreach(QIODevice* peer, _peers.keys()) {
if(peer->isOpen()) {
qWarning() << "SignalProxy: Cannot change proxy mode while connected";
return;
}
}
_proxyMode = mode;
+ if(mode == Server)
+ initServer();
+ else
+ initClient();
}
-
SignalProxy::ProxyMode SignalProxy::proxyMode() const {
return _proxyMode;
}
-bool SignalProxy::maxPeersReached() {
- if(_peerByteCount.empty())
- return false;
- if(proxyMode() != Server)
- return true;
- if(_maxClients == -1)
- return false;
+void SignalProxy::initServer() {
+ disconnect(&_heartBeatTimer, 0, this, 0);
+ _heartBeatTimer.stop();
+}
- return (_maxClients <= _peerByteCount.count());
+void SignalProxy::initClient() {
+ attachSlot("__objectRenamed__", this, SLOT(objectRenamed(QByteArray, QString, QString)));
+ connect(&_heartBeatTimer, SIGNAL(timeout()),
+ this, SLOT(sendHeartBeat()));
+ _heartBeatTimer.start(60 * 1000); // msecs: one beep per minute
}
bool SignalProxy::addPeer(QIODevice* iodev) {
if(!iodev)
return false;
- if(_peerByteCount.contains(iodev))
+ if(_peers.contains(iodev))
return true;
- if(maxPeersReached()) {
- qWarning("SignalProxy: max peer count reached");
+ if(proxyMode() == Client && !_peers.isEmpty()) {
+ qWarning("SignalProxy: only one peer allowed in client mode!");
return false;
}
connect(sock, SIGNAL(disconnected()), this, SLOT(removePeerBySender()));
}
- _peerByteCount[iodev] = 0;
+ _peers[iodev] = peerInfo();
+ if(iodev->property("UseCompression").toBool())
+ _peers[iodev].usesCompression = true;
- if(_peerByteCount.count() == 1)
+ if(_peers.count() == 1)
emit connected();
return true;
}
-void SignalProxy::removePeerBySender() {
- // OK we're brutal here... but since it's a private slot we know what we've got connected to it...
- QIODevice *ioDev = (QIODevice *)(sender());
- removePeer(ioDev);
-}
-
void SignalProxy::removePeer(QIODevice* iodev) {
- if(_peerByteCount.isEmpty()) {
- qWarning() << "SignalProxy: No peers in use!";
+ if(_peers.isEmpty()) {
+ qWarning() << "SignalProxy::removePeer(): No peers in use!";
return;
}
if(proxyMode() == Server && !iodev) {
// disconnect all
- QList<QIODevice *> peers = _peerByteCount.keys();
+ QList<QIODevice *> peers = _peers.keys();
foreach(QIODevice *peer, peers)
removePeer(peer);
}
if(proxyMode() != Server && !iodev)
- iodev = _peerByteCount.keys().first();
+ iodev = _peers.keys().first();
Q_ASSERT(iodev);
- if(!_peerByteCount.contains(iodev)) {
+ if(!_peers.contains(iodev)) {
qWarning() << "SignalProxy: unknown QIODevice" << iodev;
return;
}
-
- // take a last gasp
- while(true) {
- QVariant var;
- if(readDataFromDevice(iodev, _peerByteCount[iodev], var))
- receivePeerSignal(var);
- else
- break;
- }
- _peerByteCount.remove(iodev);
+
+ _peers.remove(iodev);
disconnect(iodev, 0, this, 0);
emit peerRemoved(iodev);
- if(_peerByteCount.isEmpty())
+ if(_peers.isEmpty())
emit disconnected();
}
+void SignalProxy::removePeerBySender() {
+ // OK we're brutal here... but since it's a private slot we know what we've got connected to it...
+ // this Slot is not triggered by destroyed, so the object is still alive and can be used!
+ QIODevice *ioDev = (QIODevice *)(sender());
+ removePeer(ioDev);
+}
+
+void SignalProxy::objectRenamed(const QString &newname, const QString &oldname) {
+ SyncableObject *syncObject = qobject_cast<SyncableObject *>(sender());
+ const QMetaObject *meta = syncObject->metaObject();
+ 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);
+ }
+}
+
void SignalProxy::setArgTypes(QObject* obj, int methodId) {
- QList<QByteArray> p = obj->metaObject()->method(methodId).parameterTypes();
+ const QMetaObject *meta = metaObject(obj);
+ 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)));
- const QByteArray &className(obj->metaObject()->className());
- Q_ASSERT(_classInfo.contains(className));
- Q_ASSERT(!_classInfo[className]->argTypes.contains(methodId));
- _classInfo[className]->argTypes[methodId] = argTypes;
+ Q_ASSERT(!_classInfo[meta]->argTypes.contains(methodId));
+ _classInfo[meta]->argTypes[methodId] = argTypes;
}
const QList<int> &SignalProxy::argTypes(QObject *obj, int methodId) {
- const QByteArray &className(obj->metaObject()->className());
- Q_ASSERT(_classInfo.contains(className));
- if(!_classInfo[className]->argTypes.contains(methodId))
+ const QMetaObject *meta = metaObject(obj);
+ Q_ASSERT(_classInfo.contains(meta));
+ if(!_classInfo[meta]->argTypes.contains(methodId))
setArgTypes(obj, methodId);
- return _classInfo[className]->argTypes[methodId];
+ return _classInfo[meta]->argTypes[methodId];
}
-void SignalProxy::setMethodName(QObject *obj, int methodId) {
- const QByteArray &className(obj->metaObject()->className());
- QByteArray method = obj->metaObject()->method(methodId).signature();
- method = method.left(method.indexOf('('));
+void SignalProxy::setReturnType(QObject *obj, int methodId) {
+ const QMetaObject *meta = metaObject(obj);
+ int returnType = QMetaType::type(meta->method(methodId).typeName());
- Q_ASSERT(_classInfo.contains(className));
- Q_ASSERT(!_classInfo[className]->methodNames.contains(methodId));
- _classInfo[className]->methodNames[methodId] = method;
+ Q_ASSERT(!_classInfo[meta]->returnType.contains(methodId));
+ _classInfo[meta]->returnType[methodId] = returnType;
+}
+
+const int &SignalProxy::returnType(QObject *obj, int methodId) {
+ const QMetaObject *meta = metaObject(obj);
+ Q_ASSERT(_classInfo.contains(meta));
+ if(!_classInfo[meta]->returnType.contains(methodId))
+ setReturnType(obj, methodId);
+ return _classInfo[meta]->returnType[methodId];
+}
+
+void SignalProxy::setMinArgCount(QObject *obj, int methodId) {
+ const QMetaObject *meta = metaObject(obj);
+ QString signature(meta->method(methodId).signature());
+ int minCount = meta->method(methodId).parameterTypes().count() - signature.count("=");
+ Q_ASSERT(!_classInfo[meta]->minArgCount.contains(methodId));
+ _classInfo[meta]->minArgCount[methodId] = minCount;
+}
+
+const int &SignalProxy::minArgCount(QObject *obj, int methodId) {
+ const QMetaObject *meta = metaObject(obj);
+ Q_ASSERT(_classInfo.contains(meta));
+ if(!_classInfo[meta]->minArgCount.contains(methodId))
+ setMinArgCount(obj, methodId);
+ return _classInfo[meta]->minArgCount[methodId];
+}
+
+void SignalProxy::setMethodName(QObject *obj, int methodId) {
+ const QMetaObject *meta = metaObject(obj);
+ QByteArray method(::methodName(meta->method(methodId)));
+ Q_ASSERT(!_classInfo[meta]->methodNames.contains(methodId));
+ _classInfo[meta]->methodNames[methodId] = method;
}
const QByteArray &SignalProxy::methodName(QObject *obj, int methodId) {
- QByteArray className(obj->metaObject()->className());
- Q_ASSERT(_classInfo.contains(className));
- if(!_classInfo[className]->methodNames.contains(methodId))
+ const QMetaObject *meta = metaObject(obj);
+ Q_ASSERT(_classInfo.contains(meta));
+ if(!_classInfo[meta]->methodNames.contains(methodId))
setMethodName(obj, methodId);
- return _classInfo[className]->methodNames[methodId];
+ return _classInfo[meta]->methodNames[methodId];
+}
+
+
+void SignalProxy::setSyncMap(SyncableObject *obj) {
+ const QMetaObject *meta = obj->syncMetaObject();
+ 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
+ QByteArray slotSignature;
+ foreach(int slotIdx, slotIndexes) {
+ slotSignature = QByteArray(meta->method(slotIdx).signature());
+ if(!slotSignature.startsWith("receive"))
+ continue;
+ syncMap[slotSignature] = slotIdx;
+ }
+
+ QMetaMethod signal, slot;
+ int matchIdx;
+ for(int signalIdx = 0; signalIdx < meta->methodCount(); signalIdx++) {
+ signal = meta->method(signalIdx);
+ if(signal.methodType() != QMetaMethod::Signal)
+ continue;
+
+ matchIdx = -1;
+ foreach(int slotIdx, slotIndexes) {
+ slot = meta->method(slotIdx);
+ if(methodsMatch(signal, slot)) {
+ matchIdx = slotIdx;
+ break;
+ }
+ }
+ if(matchIdx != -1) {
+ slotIndexes.removeAt(slotIndexes.indexOf(matchIdx));
+ syncMap[QByteArray(signal.signature())] = matchIdx;
+ }
+ }
+
+ Q_ASSERT(_classInfo[meta]->syncMap.isEmpty());
+ _classInfo[meta]->syncMap = syncMap;
+}
+
+const QHash<QByteArray,int> &SignalProxy::syncMap(SyncableObject *obj) {
+ const QMetaObject *meta = obj->syncMetaObject();
+ Q_ASSERT(_classInfo.contains(meta));
+ if(_classInfo[meta]->syncMap.isEmpty())
+ setSyncMap(obj);
+ return _classInfo[meta]->syncMap;
+}
+
+void SignalProxy::setReceiveMap(SyncableObject *obj) {
+ const QMetaObject *meta = obj->syncMetaObject();
+ Q_ASSERT(_classInfo.contains(meta));
+
+ 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(obj, 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;
+ }
+ _classInfo[meta]->receiveMap = receiveMap;
+}
+
+const QHash<int, int> &SignalProxy::receiveMap(SyncableObject *obj) {
+ const QMetaObject *meta = obj->syncMetaObject();
+ Q_ASSERT(_classInfo.contains(meta));
+ if(_classInfo[meta]->receiveMap.isEmpty())
+ setReceiveMap(obj);
+ return _classInfo[meta]->receiveMap;
+}
+
+void SignalProxy::setUpdatedRemotelyId(SyncableObject *obj) {
+ const QMetaObject *meta = obj->syncMetaObject();
+ Q_ASSERT(_classInfo.contains(meta));
+ _classInfo[meta]->updatedRemotelyId = meta->indexOfSignal("updatedRemotely()");
+}
+
+int SignalProxy::updatedRemotelyId(SyncableObject *obj) {
+ Q_ASSERT(_classInfo.contains(obj->syncMetaObject()));
+ return _classInfo[obj->syncMetaObject()]->updatedRemotelyId;
}
+const QMetaObject *SignalProxy::metaObject(QObject *obj) {
+ if(SyncableObject *syncObject = qobject_cast<SyncableObject *>(obj))
+ return syncObject->syncMetaObject();
+ else
+ return obj->metaObject();
+}
void SignalProxy::createClassInfo(QObject *obj) {
- QByteArray className(obj->metaObject()->className());
- if(!_classInfo.contains(className))
- _classInfo[className] = new ClassInfo();
+ const QMetaObject *meta = metaObject(obj);
+ if(_classInfo.contains(meta))
+ return;
+
+ ClassInfo *classInfo = new ClassInfo();
+ _classInfo[meta] = classInfo;
}
bool SignalProxy::attachSignal(QObject* sender, const char* signal, const QByteArray& sigName) {
- const QMetaObject* meta = sender->metaObject();
+ const QMetaObject* meta = metaObject(sender);
QByteArray sig(meta->normalizedSignature(signal).mid(1));
int methodId = meta->indexOfMethod(sig.constData());
if(methodId == -1 || meta->method(methodId).methodType() != QMetaMethod::Signal) {
return true;
}
+void SignalProxy::synchronize(SyncableObject *obj) {
+ createClassInfo(obj);
+ setUpdatedRemotelyId(obj);
+
+ // attaching all the Signals
+ SignalRelay* relay;
+ if(_relayHash.contains(obj))
+ relay = _relayHash[obj];
+ else
+ relay = _relayHash[obj] = new SignalRelay(this, obj);
+
+ relay->setSynchronize(true);
+
+ // attaching as slave to receive sync Calls
+ QByteArray className(obj->syncMetaObject()->className());
+ _syncSlave[className][obj->objectName()] = obj;
+
+ if(proxyMode() == Server) {
+ connect(obj, SIGNAL(objectRenamed(QString, QString)), this, SLOT(objectRenamed(QString, QString)));
+ setInitialized(obj);
+ } else {
+ requestInit(obj);
+ }
+}
+
+void SignalProxy::setInitialized(SyncableObject *obj) {
+ obj->setInitialized();
+ emit objectInitialized(obj);
+}
+
+bool SignalProxy::isInitialized(SyncableObject *obj) const {
+ return obj->isInitialized();
+}
+
+void SignalProxy::requestInit(SyncableObject *obj) {
+ if(proxyMode() == Server || isInitialized(obj))
+ return;
+
+ QVariantList params;
+ params << obj->syncMetaObject()->className()
+ << obj->objectName();
+ dispatchSignal(InitRequest, params);
+}
void SignalProxy::detachSender() {
- // this is a slot so we can bypass the QueuedConnection
- _detachSignals(sender());
- _detachSlots(sender());
+ detachObject(sender());
}
-// detachObject/Signals/Slots() can be called as a result of an incoming call
-// this might destroy our the iterator used for delivery
-// thus we wrap the actual disconnection by using QueuedConnections
void SignalProxy::detachObject(QObject* obj) {
detachSignals(obj);
detachSlots(obj);
+ stopSync(static_cast<SyncableObject *>(obj));
}
void SignalProxy::detachSignals(QObject* sender) {
- QMetaObject::invokeMethod(this, "_detachSignals",
- Qt::QueuedConnection,
- Q_ARG(QObject*, sender));
-}
-
-void SignalProxy::_detachSignals(QObject* sender) {
if(!_relayHash.contains(sender))
return;
_relayHash.take(sender)->deleteLater();
}
void SignalProxy::detachSlots(QObject* receiver) {
- QMetaObject::invokeMethod(this, "_detachSlots",
- Qt::QueuedConnection,
- Q_ARG(QObject*, receiver));
-}
-
-void SignalProxy::_detachSlots(QObject* receiver) {
SlotHash::iterator slotIter = _attachedSlots.begin();
while(slotIter != _attachedSlots.end()) {
if(slotIter.value().first == receiver) {
}
}
+void SignalProxy::stopSync(SyncableObject* obj) {
+ if(_relayHash.contains(obj))
+ _relayHash[obj]->setSynchronize(false);
-void SignalProxy::call(const char* signal, QVariant p1, QVariant p2, QVariant p3, QVariant p4, QVariant p5, QVariant p6, QVariant p7, QVariant p8, QVariant p9) {
- QByteArray func = QMetaObject::normalizedSignature(signal);
- QVariantList params;
- params << p1 << p2 << p3 << p4 << p5 << p6 << p7 << p8 << p9;
- call(func, params);
+ // 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(QIODevice *receiver, const RequestType &requestType, const QVariantList ¶ms) {
+ Q_ASSERT(_peers.contains(receiver));
+ QVariantList packedFunc;
+ packedFunc << (qint16)requestType;
+ packedFunc << params;
+ writeDataToDevice(receiver, QVariant(packedFunc), _peers[receiver].usesCompression);
}
-void SignalProxy::call(const QByteArray &funcName, const QVariantList ¶ms) {
+void SignalProxy::dispatchSignal(const RequestType &requestType, const QVariantList ¶ms) {
+ // yes I know we have a little code duplication here... it's for the sake of performance
QVariantList packedFunc;
- packedFunc << funcName;
+ packedFunc << (qint16)requestType;
packedFunc << params;
- foreach(QIODevice* dev, _peerByteCount.keys())
- writeDataToDevice(dev, QVariant(packedFunc));
+ foreach(QIODevice* dev, _peers.keys()) {
+ Q_ASSERT(_peers.contains(dev));
+ writeDataToDevice(dev, QVariant(packedFunc), _peers[dev].usesCompression);
+ }
}
-void SignalProxy::receivePeerSignal(const QVariant &packedFunc) {
+void SignalProxy::receivePeerSignal(QIODevice *sender, const QVariant &packedFunc) {
QVariantList params(packedFunc.toList());
- QByteArray funcName = params.takeFirst().toByteArray();
- int numParams, methodId;
- QObject* receiver;
+ if(params.isEmpty()) {
+ qWarning() << "SignalProxy::receivePeerSignal(): received incompatible Data:" << packedFunc;
+ return;
+ }
+
+ int callType = params.takeFirst().value<int>();
+
+ switch(callType) {
+ case RpcCall:
+ if(params.empty()) {
+ qWarning() << "SignalProxy::receivePeerSignal(): received empty RPC-Call";
+ return;
+ } else {
+ return handleSignal(params.takeFirst().toByteArray(), params);
+ }
+ case Sync:
+ return handleSync(sender, params);
+ case InitRequest:
+ return handleInitRequest(sender, params);
+ case InitData:
+ return handleInitData(sender, params);
+ case HeartBeat:
+ return;
+ default:
+ qWarning() << "SignalProxy::receivePeerSignal(): received undefined CallType" << callType << params;
+ return;
+ }
+}
+
+void SignalProxy::handleSync(QIODevice *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];
+ if(!syncMap(receiver).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 = syncMap(receiver)[signal];
+
+ QVariant returnValue((QVariant::Type)returnType(receiver, slotId));
+ if(!invokeSlot(receiver, slotId, params, returnValue)) {
+ qWarning("SignalProxy::handleSync(): invokeMethod for \"%s\" failed ", methodName(receiver, slotId).constData());
+ return;
+ }
+
+ if(returnValue.type() != QVariant::Invalid && receiveMap(receiver).contains(slotId)) {
+ int receiverId = receiveMap(receiver)[slotId];
+ QVariantList returnParams;
+ returnParams << className
+ << objectName
+ << QByteArray(receiver->metaObject()->method(receiverId).signature());
+ if(argTypes(receiver, receiverId).count() > 1)
+ returnParams << params;
+ returnParams << returnValue;
+ dispatchSignal(sender, Sync, returnParams);
+ }
+
+ // send emit update signal
+ invokeSlot(receiver, updatedRemotelyId(receiver));
+}
+
+void SignalProxy::handleInitRequest(QIODevice *sender, const QVariantList ¶ms) {
+ if(params.count() != 2) {
+ qWarning() << "SignalProxy::handleInitRequest() received initRequest with invalid param Count:"
+ << params;
+ return;
+ }
+
+ QByteArray className(params[0].toByteArray());
+ QString objectName(params[1].toString());
+
+ if(!_syncSlave.contains(className)) {
+ qWarning() << "SignalProxy::handleInitRequest() received initRequest for unregistered Class:"
+ << className;
+ return;
+ }
+
+ if(!_syncSlave[className].contains(objectName)) {
+ qWarning() << "SignalProxy::handleInitRequest() received initRequest for unregistered Object:"
+ << className << objectName;
+ return;
+ }
+
+ SyncableObject *obj = _syncSlave[className][objectName];
+
+ QVariantList params_;
+ params_ << className
+ << objectName
+ << initData(obj);
+
+ dispatchSignal(sender, InitData, params_);
+}
+
+void SignalProxy::handleInitData(QIODevice *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) {
+ QObject* receiver;
+ int methodId;
SlotHash::const_iterator slot = _attachedSlots.constFind(funcName);
while(slot != _attachedSlots.constEnd() && slot.key() == funcName) {
receiver = (*slot).first;
methodId = (*slot).second;
- numParams = argTypes(receiver, methodId).count();
- QGenericArgument args[9];
- for(int i = 0; i < numParams; i++)
- args[i] = QGenericArgument(params[i].typeName(), params[i].constData());
- if(!QMetaObject::invokeMethod(receiver, methodName(receiver, methodId),
- args[0], args[1], args[2], args[3], args[4], args[5], args[6], args[7], args[8])) {
- qWarning("SignalProxy::receivePeerSignal(): invokeMethod for \"%s\" failed ", methodName(receiver, methodId).constData());
- }
+ if(!invokeSlot(receiver, methodId, params))
+ qWarning("SignalProxy::handleSignal(): invokeMethod for \"%s\" failed ", methodName(receiver, methodId).constData());
slot++;
}
}
-void SignalProxy::dataAvailable() {
- QIODevice* ioDev = qobject_cast<QIODevice* >(sender());
- Q_ASSERT(ioDev);
- if(!_peerByteCount.contains(ioDev)) {
- qWarning() << "SignalProxy: Unrecognized client object connected to dataAvailable";
- return;
+bool SignalProxy::invokeSlot(QObject *receiver, int methodId, const QVariantList ¶ms, QVariant &returnValue) {
+ const QList<int> args = argTypes(receiver, methodId);
+ const int numArgs = params.count() < args.count()
+ ? params.count()
+ : args.count();
+
+ if(minArgCount(receiver, methodId) > params.count()) {
+ qWarning() << "SignalProxy::invokeSlot(): not enough params to invoke" << methodName(receiver, 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" << methodName(receiver, 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 {
- QVariant var;
- while(readDataFromDevice(ioDev, _peerByteCount[ioDev], var))
- receivePeerSignal(var);
+ 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::writeDataToDevice(QIODevice *dev, const QVariant &item) {
+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));
+ QVariant var;
+ while(readDataFromDevice(ioDev, _peers[ioDev].byteCount, var, _peers[ioDev].usesCompression))
+ receivePeerSignal(ioDev, 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 on a closed device");
return;
}
+
QByteArray block;
QDataStream out(&block, QIODevice::WriteOnly);
out.setVersion(QDataStream::Qt_4_2);
- out << (quint32)0 << item;
- out.device()->seek(0);
- out << (quint32)(block.size() - sizeof(quint32));
+
+ if(compressed) {
+ QByteArray rawItem;
+ QDataStream itemStream(&rawItem, QIODevice::WriteOnly);
+
+ itemStream.setVersion(QDataStream::Qt_4_2);
+ itemStream << item;
+
+ rawItem = qCompress(rawItem);
+
+ out << (quint32)rawItem.size() << rawItem;
+ } else {
+ out << (quint32)0 << item;
+ out.device()->seek(0);
+ out << (quint32)(block.size() - sizeof(quint32));
+ }
+
dev->write(block);
}
-bool SignalProxy::readDataFromDevice(QIODevice *dev, quint32 &blockSize, QVariant &item) {
+bool SignalProxy::readDataFromDevice(QIODevice *dev, quint32 &blockSize, QVariant &item, bool compressed) {
QDataStream in(dev);
in.setVersion(QDataStream::Qt_4_2);
if(dev->bytesAvailable() < blockSize)
return false;
- in >> item;
+
+ if(compressed) {
+ QByteArray rawItem;
+ in >> rawItem;
+ rawItem = qUncompress(rawItem);
+
+ QDataStream itemStream(&rawItem, QIODevice::ReadOnly);
+ itemStream.setVersion(QDataStream::Qt_4_2);
+ itemStream >> item;
+ } else {
+ in >> item;
+ }
+
blockSize = 0;
+
return true;
}
+
+bool SignalProxy::methodsMatch(const QMetaMethod &signal, const QMetaMethod &slot) const {
+ // if we don't even have the same basename it's a sure NO
+ if(methodBaseName(signal) != methodBaseName(slot))
+ return false;
+
+ // are the signatures compatible?
+ if(!QObject::staticMetaObject.checkConnectArgs(signal.signature(), slot.signature()))
+ return false;
+
+ // we take an educated guess if the signals and slots match
+ QString signalsuffix = ::methodName(signal).mid(QString(::methodName(signal)).lastIndexOf(QRegExp("[A-Z]"))).toLower();
+ QString slotprefix = ::methodName(slot).left(QString(::methodName(slot)).indexOf(QRegExp("[A-Z]"))).toLower();
+
+ uint sizediff = qAbs(slotprefix.size() - signalsuffix.size());
+ int ratio = editingDistance(slotprefix, signalsuffix) - sizediff;
+ return (ratio < 2);
+}
+
+QString SignalProxy::methodBaseName(const QMetaMethod &method) {
+ QString methodname = QString(method.signature()).section("(", 0, 0);
+
+ // determine where we have to chop:
+ 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;
+}
+
+QVariantMap SignalProxy::initData(SyncableObject *obj) const {
+ return obj->toVariantMap();
+}
+
+void SignalProxy::setInitData(SyncableObject *obj, const QVariantMap &properties) {
+ if(isInitialized(obj))
+ return;
+ obj->fromVariantMap(properties);
+ setInitialized(obj);
+ invokeSlot(obj, updatedRemotelyId(obj));
+}
+
+void SignalProxy::sendHeartBeat() {
+ dispatchSignal(SignalProxy::HeartBeat, QVariantList());
+}
+
+void SignalProxy::dumpProxyStats() {
+ QString mode;
+ if(proxyMode() == Server)
+ mode = "Server";
+ else
+ mode = "Client";
+
+ int sigCount = 0;
+ foreach(SignalRelay *relay, _relayHash.values())
+ sigCount += relay->sigCount();
+
+ int slaveCount = 0;
+ foreach(ObjectId oid, _syncSlave.values())
+ slaveCount += oid.count();
+
+ qDebug() << this;
+ qDebug() << " Proxy Mode:" << mode;
+ qDebug() << "attached sending Objects:" << _relayHash.count();
+ qDebug() << " number of Signals:" << sigCount;
+ qDebug() << " attached Slots:" << _attachedSlots.count();
+ qDebug() << " number of synced Slaves:" << slaveCount;
+ qDebug() << "number of Classes cached:" << _classInfo.count();
+}
+
+void SignalProxy::dumpSyncMap(SyncableObject *object) {
+ const QMetaObject *meta = object->metaObject();
+ qDebug() << "SignalProxy: SyncMap for Class" << meta->className();
+
+ QHash<QByteArray, int> syncMap_ = syncMap(object);
+ QHash<QByteArray, int>::const_iterator iter = syncMap_.constBegin();
+ while(iter != syncMap_.constEnd()) {
+ qDebug() << iter.key() << "-->" << iter.value() << meta->method(iter.value()).signature();
+ iter++;
+ }
+// QHash<int, int> syncMap_ = syncMap(object);
+// QHash<int, int>::const_iterator iter = syncMap_.constBegin();
+// while(iter != syncMap_.constEnd()) {
+// qDebug() << iter.key() << meta->method(iter.key()).signature() << "-->" << iter.value() << meta->method(iter.value()).signature();
+// iter++;
+// }
+}
projects / quassel.git / blobdiff