* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
-#ifndef _SIGNALPROXY_H_
-#define _SIGNALPROXY_H_
+#ifndef SIGNALPROXY_H
+#define SIGNALPROXY_H
+#include <QEvent>
#include <QList>
#include <QHash>
#include <QVariant>
class SignalProxy : public QObject {
Q_OBJECT
+ class AbstractPeer;
+ class IODevicePeer;
+
public:
enum ProxyMode {
Server,
RpcCall,
InitRequest,
InitData,
- HeartBeat
+ HeartBeat,
+ HeartBeatReply
+ };
+
+ enum ClientConnectionType {
+ SignalProxyConnection,
+ IODeviceConnection
+ };
+
+ enum CustomEvents {
+ PeerSignal = QEvent::User,
+ RemovePeer
};
SignalProxy(QObject *parent);
virtual ~SignalProxy();
void setProxyMode(ProxyMode mode);
- ProxyMode proxyMode() const;
+ inline ProxyMode proxyMode() const { return _proxyMode; }
bool addPeer(QIODevice *iodev);
- void removePeer(QIODevice *iodev = 0);
-
+ bool addPeer(SignalProxy *proxy);
+ void removePeer(QObject *peer);
+ void removeAllPeers();
+
bool attachSignal(QObject *sender, const char *signal, const QByteArray& sigName = QByteArray());
bool attachSlot(const QByteArray& sigName, QObject *recv, const char *slot);
void dumpProxyStats();
+protected:
+ void customEvent(QEvent *event);
+
private slots:
void dataAvailable();
void detachSender();
void objectRenamed(const QString &newname, const QString &oldname);
void objectRenamed(const QByteArray &classname, const QString &newname, const QString &oldname);
void sendHeartBeat();
- void receiveHeartBeat(QIODevice *dev);
-
+ void receiveHeartBeat(AbstractPeer *peer, const QVariantList ¶ms);
+ void receiveHeartBeatReply(AbstractPeer *peer, const QVariantList ¶ms);
+
signals:
void peerRemoved(QIODevice *dev);
void connected();
void disconnected();
void objectInitialized(SyncableObject *);
+ void lagUpdated(int lag);
private:
void init();
void dispatchSignal(QIODevice *receiver, const RequestType &requestType, const QVariantList ¶ms);
void dispatchSignal(const RequestType &requestType, const QVariantList ¶ms);
-
- void receivePeerSignal(QIODevice *sender, const QVariant &packedFunc);
- void handleSync(QIODevice *sender, QVariantList params);
- void handleInitRequest(QIODevice *sender, const QVariantList ¶ms);
- void handleInitData(QIODevice *sender, const QVariantList ¶ms);
- void handleSignal(const QByteArray &funcName, const QVariantList ¶ms);
+
+ void receivePackedFunc(AbstractPeer *sender, const QVariant &packedFunc);
+ void receivePeerSignal(AbstractPeer *sender, const RequestType &requestType, const QVariantList ¶ms);
+ void receivePeerSignal(SignalProxy *sender, const RequestType &requestType, const QVariantList ¶ms);
+ void handleSync(AbstractPeer *sender, QVariantList params);
+ void handleInitRequest(AbstractPeer *sender, const QVariantList ¶ms);
+ void handleInitData(AbstractPeer *sender, const QVariantList ¶ms);
+ void handleSignal(const QVariantList &data);
bool invokeSlot(QObject *receiver, int methodId, const QVariantList ¶ms, QVariant &returnValue);
bool invokeSlot(QObject *receiver, int methodId, const QVariantList ¶ms = QVariantList());
QVariantMap initData(SyncableObject *obj) const;
void setInitData(SyncableObject *obj, const QVariantMap &properties);
+ void updateLag(IODevicePeer *peer, int lag);
+
public:
void dumpSyncMap(SyncableObject *object);
inline int peerCount() const { return _peers.size(); }
private:
- // Hash of used QIODevices
- struct peerInfo {
+ static void disconnectDevice(QIODevice *dev, const QString &reason = QString());
+
+ class AbstractPeer {
+ public:
+ enum PeerType {
+ NotAPeer = 0,
+ IODevicePeer = 1,
+ SignalProxyPeer = 2
+ };
+ AbstractPeer() : _type(NotAPeer) {}
+ AbstractPeer(PeerType type) : _type(type) {}
+ virtual ~AbstractPeer() {}
+ inline PeerType type() const { return _type; }
+ virtual void dispatchSignal(const RequestType &requestType, const QVariantList ¶ms) = 0;
+ private:
+ PeerType _type;
+ };
+
+ class IODevicePeer : public AbstractPeer {
+ public:
+ IODevicePeer(QIODevice *device, bool compress) : AbstractPeer(AbstractPeer::IODevicePeer), _device(device), byteCount(0), usesCompression(compress), sentHeartBeats(0), lag(0) {}
+ virtual void dispatchSignal(const RequestType &requestType, const QVariantList ¶ms);
+ inline void dispatchPackedFunc(const QVariant &packedFunc) { SignalProxy::writeDataToDevice(_device, packedFunc, usesCompression); }
+ QString address() const;
+ inline bool isOpen() const { return _device->isOpen(); }
+ inline void close() const { _device->close(); }
+ inline bool readData(QVariant &item) { return SignalProxy::readDataFromDevice(_device, byteCount, item, usesCompression); }
+ private:
+ QIODevice *_device;
quint32 byteCount;
bool usesCompression;
+ public:
int sentHeartBeats;
- peerInfo() : byteCount(0), usesCompression(false), sentHeartBeats(0) {}
+ int lag;
+ };
+
+ class SignalProxyPeer : public AbstractPeer {
+ public:
+ SignalProxyPeer(SignalProxy *sender, SignalProxy *receiver) : AbstractPeer(AbstractPeer::SignalProxyPeer), sender(sender), receiver(receiver) {}
+ virtual void dispatchSignal(const RequestType &requestType, const QVariantList ¶ms);
+ private:
+ SignalProxy *sender;
+ SignalProxy *receiver;
};
- //QHash<QIODevice*, peerInfo> _peerByteCount;
- QHash<QIODevice*, peerInfo> _peers;
+
+ // a Hash of the actual used communication object to it's corresponding peer
+ // currently a communication object can either be an arbitrary QIODevice or another SignalProxy
+ typedef QHash<QObject *, AbstractPeer *> PeerHash;
+ PeerHash _peers;
// containg a list of argtypes for fast access
QHash<const QMetaObject *, ClassInfo*> _classInfo;