SignalProxy internal redesign.

[quassel.git] / src / common / signalproxy.h

diff --git a/src/common/signalproxy.h b/src/common/signalproxy.h
index 15acc88..0dc3332 100644 (file)
--- a/src/common/signalproxy.h
+++ b/src/common/signalproxy.h
@@ -18,8 +18,8 @@
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  ***************************************************************************/
 
-#ifndef _SIGNALPROXY_H_
-#define _SIGNALPROXY_H_
+#ifndef SIGNALPROXY_H
+#define SIGNALPROXY_H
 
 #include <QList>
 #include <QHash>
@@ -37,6 +37,9 @@ struct QMetaObject;
 class SignalProxy : public QObject {
   Q_OBJECT
 
+  class AbstractPeer;
+  class IODevicePeer;
+
 public:
   enum ProxyMode {
     Server,
@@ -48,7 +51,8 @@ public:
     RpcCall,
     InitRequest,
     InitData,
-    HeartBeat
+    HeartBeat,
+    HeartBeatReply
   };
 
   SignalProxy(QObject *parent);
@@ -57,11 +61,14 @@ public:
   virtual ~SignalProxy();
 
   void setProxyMode(ProxyMode mode);
-  ProxyMode proxyMode() const;
+  inline ProxyMode proxyMode() const { return _proxyMode; }
 
   bool addPeer(QIODevice *iodev);
-  void removePeer(QIODevice *iodev = 0);
-
+  void removePeer(QIODevice *iodev);
+  bool addPeer(SignalProxy *proxy);
+  void removePeer(SignalProxy *proxy);
+  void removeAllPeers();
+  
   bool attachSignal(QObject *sender, const char *signal, const QByteArray& sigName = QByteArray());
   bool attachSlot(const QByteArray& sigName, QObject *recv, const char *slot);
 
@@ -120,14 +127,18 @@ private slots:
   void objectRenamed(const QString &newname, const QString &oldname);
   void objectRenamed(const QByteArray &classname, const QString &newname, const QString &oldname);
   void sendHeartBeat();
-
+  void receiveHeartBeat(AbstractPeer *peer, const QVariantList &params);
+  void receiveHeartBeatReply(AbstractPeer *peer, const QVariantList &params);
+  
 signals:
-  void peerRemoved(QIODevice *obj);
+  void peerRemoved(QIODevice *dev);
   void connected();
   void disconnected();
   void objectInitialized(SyncableObject *);
+  void lagUpdated(int lag);
   
 private:
+  void init();
   void initServer();
   void initClient();
   
@@ -145,12 +156,13 @@ private:
 
   void dispatchSignal(QIODevice *receiver, const RequestType &requestType, const QVariantList &params);
   void dispatchSignal(const RequestType &requestType, const QVariantList &params);
-  
-  void receivePeerSignal(QIODevice *sender, const QVariant &packedFunc);
-  void handleSync(QIODevice *sender, QVariantList params);
-  void handleInitRequest(QIODevice *sender, const QVariantList &params);
-  void handleInitData(QIODevice *sender, const QVariantList &params);
-  void handleSignal(const QByteArray &funcName, const QVariantList &params);
+
+  void receivePackedFunc(AbstractPeer *sender, const QVariant &packedFunc);
+  void receivePeerSignal(AbstractPeer *sender, const RequestType &requestType, const QVariantList &params);
+  void handleSync(AbstractPeer *sender, QVariantList params);
+  void handleInitRequest(AbstractPeer *sender, const QVariantList &params);
+  void handleInitData(AbstractPeer *sender, const QVariantList &params);
+  void handleSignal(const QVariantList &data);
 
   bool invokeSlot(QObject *receiver, int methodId, const QVariantList &params, QVariant &returnValue);
   bool invokeSlot(QObject *receiver, int methodId, const QVariantList &params = QVariantList());
@@ -158,18 +170,68 @@ private:
   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 {
+  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 &params) = 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 &params);
+    inline void dispatchPackedFunc(const QVariant &packedFunc) { SignalProxy::writeDataToDevice(_device, packedFunc, usesCompression); }
+    inline QIODevice *device() const { return _device; }
+    inline bool isOpen() const { return _device->isOpen(); }
+    inline bool readData(QVariant &item) { return SignalProxy::readDataFromDevice(_device, byteCount, item, usesCompression); }
+  private:
+    QIODevice *_device;
     quint32 byteCount;
     bool usesCompression;
-    peerInfo() : byteCount(0), usesCompression(false) {};
+  public:
+    int sentHeartBeats;
+    int lag;
   };
-  //QHash<QIODevice*, peerInfo> _peerByteCount;
-  QHash<QIODevice*, peerInfo> _peers;
+
+  class SignalProxyPeer : public AbstractPeer {
+  public:
+    SignalProxyPeer(SignalProxy *proxy) : AbstractPeer(AbstractPeer::SignalProxyPeer), proxy(proxy) {}
+    virtual void dispatchSignal(const RequestType &requestType, const QVariantList &params);
+  private:
+    SignalProxy *proxy;
+  };
+
+  // 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;
+  
+//   // Hash of used QIODevices
+//   struct peerInfo {
+//     quint32 byteCount;
+//     bool usesCompression;
+//     int sentHeartBeats;
+//     int lag;
+//     peerInfo() : byteCount(0), usesCompression(false), sentHeartBeats(0) {}
+//   };
+//   QHash<QIODevice*, peerInfo> _peers;
 
   // containg a list of argtypes for fast access
   QHash<const QMetaObject *, ClassInfo*> _classInfo;