/***************************************************************************
- * Copyright (C) 2005-07 by The Quassel IRC Development Team *
+ * Copyright (C) 2005-2013 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 *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
-#ifndef _RPCPEER_H_
-#define _RPCPEER_H_
+#ifndef SIGNALPROXY_H
+#define SIGNALPROXY_H
-#include <QtCore>
+#include <QEvent>
+#include <QSet>
-class QxtRPCPeer;
+#include "protocol.h"
-class SignalProxy : public QObject {
- Q_OBJECT
+struct QMetaObject;
- public:
+class Peer;
+class SyncableObject;
- enum ProxyType { Client, Server };
+class SignalProxy : public QObject
+{
+ Q_OBJECT
- SignalProxy(ProxyType type, QIODevice *device = 0, QObject *parent = 0);
- ~SignalProxy();
+ class SignalRelay;
- ProxyType proxyType() const { return type; }
- void attachSignal(QObject* sender, const char* signal, const QByteArray& rpcFunction = QByteArray());
- void attachSlot(const QByteArray& rpcFunction, QObject* recv, const char* slot);
+public:
+ enum ProxyMode {
+ Server,
+ Client
+ };
- public slots:
- void addPeer(QIODevice *device);
+ enum EventType {
+ RemovePeerEvent = QEvent::User
+ };
- void sendSignal(const char *signal, QVariant p1 = QVariant(), QVariant p2 = QVariant(), QVariant p3 = QVariant(), QVariant p4 = QVariant(),
- QVariant p5 = QVariant(), QVariant p6 = QVariant(), QVariant p7 = QVariant(), QVariant p8 = QVariant(), QVariant p9 = QVariant());
-
- //void detachSender();
- void detachObject(QObject *);
+ SignalProxy(QObject *parent);
+ SignalProxy(ProxyMode mode, QObject *parent);
+ virtual ~SignalProxy();
- signals:
- void peerDisconnected();
+ void setProxyMode(ProxyMode mode);
+ inline ProxyMode proxyMode() const { return _proxyMode; }
- private slots:
- void socketDisconnected();
+ void setHeartBeatInterval(int secs);
+ inline int heartBeatInterval() const { return _heartBeatInterval; }
+ void setMaxHeartBeatCount(int max);
+ inline int maxHeartBeatCount() const { return _maxHeartBeatCount; }
- private:
- struct Connection {
- QPointer<QxtRPCPeer> peer;
- QPointer<QIODevice> device;
- };
+ bool addPeer(Peer *peer);
- struct SignalDesc {
- QObject *sender;
- QByteArray signal;
- QByteArray rpcFunction;
+ bool attachSignal(QObject *sender, const char *signal, const QByteArray &sigName = QByteArray());
+ bool attachSlot(const QByteArray &sigName, QObject *recv, const char *slot);
- SignalDesc(QObject *sndr, const char *sig, const QByteArray &func) : sender(sndr), signal(sig), rpcFunction(func) {}
- };
+ void synchronize(SyncableObject *obj);
+ void stopSynchronize(SyncableObject *obj);
- struct SlotDesc {
- QByteArray rpcFunction;
- QObject *recv;
- QByteArray slot;
+ class ExtendedMetaObject;
+ ExtendedMetaObject *extendedMetaObject(const QMetaObject *meta) const;
+ ExtendedMetaObject *createExtendedMetaObject(const QMetaObject *meta, bool checkConflicts = false);
+ inline ExtendedMetaObject *extendedMetaObject(const QObject *obj) const { return extendedMetaObject(metaObject(obj)); }
+ inline ExtendedMetaObject *createExtendedMetaObject(const QObject *obj, bool checkConflicts = false) { return createExtendedMetaObject(metaObject(obj), checkConflicts); }
- SlotDesc(const QByteArray& func, QObject* r, const char* s) : rpcFunction(func), recv(r), slot(s) {}
- };
+ bool isSecure() const { return _secure; }
+ void dumpProxyStats();
+ void dumpSyncMap(SyncableObject *object);
+ inline int peerCount() const { return _peers.size(); }
+
+public slots:
+ void detachObject(QObject *obj);
+ void detachSignals(QObject *sender);
+ void detachSlots(QObject *receiver);
+
+protected:
+ void customEvent(QEvent *event);
+ void sync_call__(const SyncableObject *obj, ProxyMode modeType, const char *funcname, va_list ap);
+ void renameObject(const SyncableObject *obj, const QString &newname, const QString &oldname);
+
+private slots:
+ void removePeerBySender();
+ void objectRenamed(const QByteArray &classname, const QString &newname, const QString &oldname);
+ void updateSecureState();
+
+signals:
+ void peerRemoved(Peer *peer);
+ void connected();
+ void disconnected();
+ void objectInitialized(SyncableObject *);
+ void heartBeatIntervalChanged(int secs);
+ void maxHeartBeatCountChanged(int max);
+ void lagUpdated(int lag);
+ void secureStateChanged(bool);
+
+private:
+ template<class T>
+ class PeerMessageEvent;
+
+ void init();
+ void initServer();
+ void initClient();
+
+ static const QMetaObject *metaObject(const QObject *obj);
+
+ void removePeer(Peer *peer);
+ void removeAllPeers();
+
+ template<class T>
+ void dispatch(const T &protoMessage);
+ template<class T>
+ void dispatch(Peer *peer, const T &protoMessage);
+
+ void handle(Peer *peer, const Protocol::SyncMessage &syncMessage);
+ void handle(Peer *peer, const Protocol::RpcCall &rpcCall);
+ void handle(Peer *peer, const Protocol::InitRequest &initRequest);
+ void handle(Peer *peer, const Protocol::InitData &initData);
+
+ template<class T>
+ void handle(Peer *, T) { Q_ASSERT(0); }
+
+ bool invokeSlot(QObject *receiver, int methodId, const QVariantList ¶ms, QVariant &returnValue, Peer *peer = 0);
+ bool invokeSlot(QObject *receiver, int methodId, const QVariantList ¶ms = QVariantList(), Peer *peer = 0);
+
+ void requestInit(SyncableObject *obj);
+ QVariantMap initData(SyncableObject *obj) const;
+ void setInitData(SyncableObject *obj, const QVariantMap &properties);
+
+ static void disconnectDevice(QIODevice *dev, const QString &reason = QString());
- ProxyType type;
- QList<Connection> peers;
- QList<SignalDesc> attachedSignals;
- QList<SlotDesc> attachedSlots;
+ QSet<Peer *> _peers;
+ // containg a list of argtypes for fast access
+ QHash<const QMetaObject *, ExtendedMetaObject *> _extendedMetaObjects;
+
+ // SignalRelay for all manually attached signals
+ SignalRelay *_signalRelay;
+
+ // RPC function -> (object, slot ID)
+ typedef QPair<QObject *, int> MethodId;
+ typedef QMultiHash<QByteArray, MethodId> SlotHash;
+ SlotHash _attachedSlots;
+
+ // slaves for sync
+ typedef QHash<QString, SyncableObject *> ObjectId;
+ QHash<QByteArray, ObjectId> _syncSlave;
+
+ ProxyMode _proxyMode;
+ int _heartBeatInterval;
+ int _maxHeartBeatCount;
+
+ bool _secure; // determines if all connections are in a secured state (using ssl or internal connections)
+
+ friend class SignalRelay;
+ friend class SyncableObject;
+ friend class Peer;
};
+// ==================================================
+// ExtendedMetaObject
+// ==================================================
+class SignalProxy::ExtendedMetaObject
+{
+ class MethodDescriptor
+ {
+ public:
+ MethodDescriptor(const QMetaMethod &method);
+ MethodDescriptor() : _returnType(-1), _minArgCount(-1), _receiverMode(SignalProxy::Client) {}
+
+ inline const QByteArray &methodName() const { return _methodName; }
+ inline const QList<int> &argTypes() const { return _argTypes; }
+ inline int returnType() const { return _returnType; }
+ inline int minArgCount() const { return _minArgCount; }
+ inline SignalProxy::ProxyMode receiverMode() const { return _receiverMode; }
+
+ private:
+ QByteArray _methodName;
+ QList<int> _argTypes;
+ int _returnType;
+ int _minArgCount;
+ SignalProxy::ProxyMode _receiverMode; // Only acceptable as a Sync Call if the receiving SignalProxy is in this mode.
+ };
+
+
+public:
+ ExtendedMetaObject(const QMetaObject *meta, bool checkConflicts);
+
+ inline const QByteArray &methodName(int methodId) { return methodDescriptor(methodId).methodName(); }
+ inline const QList<int> &argTypes(int methodId) { return methodDescriptor(methodId).argTypes(); }
+ inline int returnType(int methodId) { return methodDescriptor(methodId).returnType(); }
+ inline int minArgCount(int methodId) { return methodDescriptor(methodId).minArgCount(); }
+ inline SignalProxy::ProxyMode receiverMode(int methodId) { return methodDescriptor(methodId).receiverMode(); }
+
+ inline int methodId(const QByteArray &methodName) { return _methodIds.contains(methodName) ? _methodIds[methodName] : -1; }
+
+ inline int updatedRemotelyId() { return _updatedRemotelyId; }
+
+ inline const QHash<QByteArray, int> &slotMap() { return _methodIds; }
+ const QHash<int, int> &receiveMap();
+
+ const QMetaObject *metaObject() const { return _meta; }
+
+ static QByteArray methodName(const QMetaMethod &method);
+ static QString methodBaseName(const QMetaMethod &method);
+
+private:
+ const MethodDescriptor &methodDescriptor(int methodId);
+
+ const QMetaObject *_meta;
+ int _updatedRemotelyId; // id of the updatedRemotely() signal - makes things faster
+
+ QHash<int, MethodDescriptor> _methods;
+ QHash<QByteArray, int> _methodIds;
+ QHash<int, int> _receiveMap; // if slot x is called then hand over the result to slot y
+};
#endif
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