X-Git-Url: https://git.quassel-irc.org/?p=quassel.git;a=blobdiff_plain;f=src%2Fcommon%2Fsignalproxy.h;h=e6288977585613d7c8b60adbb25748a75dca7783;hp=f44db23ef1e4f608c6912bfc900ec2b6dfb61fe0;hb=6efa7d5a4cd38bc21ecfafd04d25a6c952d1e097;hpb=a634acadbcf6017474f68a3eaf7cb632660e9e49

diff --git a/src/common/signalproxy.h b/src/common/signalproxy.h
index f44db23e..e6288977 100644
--- a/src/common/signalproxy.h
+++ b/src/common/signalproxy.h
@@ -1,11 +1,11 @@
 /***************************************************************************
- *   Copyright (C) 2005-07 by The Quassel IRC Development 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        *
@@ -18,71 +18,241 @@
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  ***************************************************************************/
 
-#ifndef _RPCPEER_H_
-#define _RPCPEER_H_
+#ifndef SIGNALPROXY_H
+#define SIGNALPROXY_H
 
-#include <QtCore>
+#include <QList>
+#include <QHash>
+#include <QVariant>
+#include <QVariantMap>
+#include <QPair>
+#include <QString>
+#include <QByteArray>
+#include <QTimer>
 
-class QxtRPCPeer;
+class SignalRelay;
+class SyncableObject;
+struct QMetaObject;
 
 class SignalProxy : public QObject {
   Q_OBJECT
 
-  public:
+  class AbstractPeer;
+  class IODevicePeer;
+
+public:
+  enum ProxyMode {
+    Server,
+    Client
+  };
 
-    enum ProxyType { Client, Server };
+  enum RequestType {
+    Sync = 1,
+    RpcCall,
+    InitRequest,
+    InitData,
+    HeartBeat,
+    HeartBeatReply
+  };
 
-    SignalProxy(ProxyType type, QIODevice *device = 0, QObject *parent = 0);
-    ~SignalProxy();
+  enum ClientConnectionType {
+    SignalProxyConnection,
+    IODeviceConnection
+  };
 
-  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);
+  SignalProxy(QObject *parent);
+  SignalProxy(ProxyMode mode, QObject *parent);
+  SignalProxy(ProxyMode mode, QIODevice *device, QObject *parent);
+  virtual ~SignalProxy();
 
-  public slots:
-    void addPeer(QIODevice *device);
+  void setProxyMode(ProxyMode mode);
+  inline ProxyMode proxyMode() const { return _proxyMode; }
 
-    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());
+  bool addPeer(QIODevice *iodev);
+  bool addPeer(SignalProxy *proxy);
+  void removePeer(QObject *peer);
+  void removeAllPeers();
   
-    //void detachSender();
-    void detachObject(QObject *);
+  bool attachSignal(QObject *sender, const char *signal, const QByteArray& sigName = QByteArray());
+  bool attachSlot(const QByteArray& sigName, QObject *recv, const char *slot);
 
-  signals:
-    void peerDisconnected();
+  void synchronize(SyncableObject *obj);
 
-  private slots:
-    void socketDisconnected();
+//   void setInitialized(SyncableObject *obj);
+//   bool isInitialized(SyncableObject *obj) const;
+  void requestInit(SyncableObject *obj);
 
-  private:
-    struct Connection {
-      QPointer<QxtRPCPeer> peer;
-      QPointer<QIODevice> device;
-    };
+  void detachObject(QObject *obj);
+  void detachSignals(QObject *sender);
+  void detachSlots(QObject *receiver);
+  void stopSync(SyncableObject *obj);
 
-    struct SignalDesc {
-      QObject *sender;
-      QByteArray signal;
-      QByteArray rpcFunction;
+  //! Writes a QVariant to a device.
+  /** The data item is prefixed with the resulting blocksize,
+   *  so the corresponding function readDataFromDevice() can check if enough data is available
+   *  at the device to reread the item.
+   */
+  static void writeDataToDevice(QIODevice *dev, const QVariant &item, bool compressed = false);
 
-      SignalDesc(QObject *sndr, const char *sig, const QByteArray &func) : sender(sndr), signal(sig), rpcFunction(func) {}
-    };
+  //! Reads a data item from a device that has been written by writeDataToDevice().
+  /** If not enough data bytes are available, the function returns false and the QVariant reference
+   *  remains untouched.
+   */
+  static bool readDataFromDevice(QIODevice *dev, quint32 &blockSize, QVariant &item, bool compressed = false);
+
+  static QString methodBaseName(const QMetaMethod &method);
+
+  const QList<int> &argTypes(QObject *obj, int methodId);
+  const int &returnType(QObject *obj, int methodId);
+  const int &minArgCount(QObject *obj, int methodId);
+  const QByteArray &methodName(QObject *obj, int methodId);
+  const QHash<QByteArray, int> &syncMap(SyncableObject *obj);
+  const QHash<int, int> &receiveMap(SyncableObject *obj);
+  int updatedRemotelyId(SyncableObject *obj);
+
+  typedef QHash<int, QList<int> > ArgHash;
+  typedef QHash<int, QByteArray> MethodNameHash;
+  struct ClassInfo {
+    ArgHash argTypes;
+    QHash<int, int> returnType;
+    QHash<int, int> minArgCount;
+    MethodNameHash methodNames;
+    int updatedRemotelyId; // id of the updatedRemotely() signal - makes things faster
+    QHash<QByteArray, int> syncMap;
+    QHash<int, int> receiveMap;
+  };
+
+  void dumpProxyStats();
+  
+protected:
+  void customEvent(QEvent *event);
+
+private slots:
+  void dataAvailable();
+  void detachSender();
+  void removePeerBySender();
+  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 *dev);
+  void connected();
+  void disconnected();
+  void objectInitialized(SyncableObject *);
+  void lagUpdated(int lag);
+  
+private:
+  void init();
+  void initServer();
+  void initClient();
+  
+  const QMetaObject *metaObject(QObject *obj);
+  void createClassInfo(QObject *obj);
+  void setArgTypes(QObject *obj, int methodId);
+  void setReturnType(QObject *obj, int methodId);
+  void setMinArgCount(QObject *obj, int methodId);
+  void setMethodName(QObject *obj, int methodId);
+  void setSyncMap(SyncableObject *obj);
+  void setReceiveMap(SyncableObject *obj);
+  void setUpdatedRemotelyId(SyncableObject *obj);
+
+  bool methodsMatch(const QMetaMethod &signal, const QMetaMethod &slot) const;
+
+  void dispatchSignal(QIODevice *receiver, const RequestType &requestType, const QVariantList &params);
+  void dispatchSignal(const RequestType &requestType, const QVariantList &params);
+
+  void receivePackedFunc(AbstractPeer *sender, const QVariant &packedFunc);
+  void receivePeerSignal(AbstractPeer *sender, const RequestType &requestType, const QVariantList &params);
+  void receivePeerSignal(SignalProxy *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());
 
-    struct SlotDesc {
-      QByteArray rpcFunction;
-      QObject *recv;
-      QByteArray slot;
+  QVariantMap initData(SyncableObject *obj) const;
+  void setInitData(SyncableObject *obj, const QVariantMap &properties);
 
-      SlotDesc(const QByteArray& func, QObject* r, const char* s) : rpcFunction(func), recv(r), slot(s) {}
+  void updateLag(IODevicePeer *peer, int lag);
+
+public:
+  void dumpSyncMap(SyncableObject *object);
+  inline int peerCount() const { return _peers.size(); }
+  
+private:
+  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;
+  };
 
-    ProxyType type;
-    QList<Connection> peers;
-    QList<SignalDesc> attachedSignals;
-    QList<SlotDesc> attachedSlots;
+  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); }
+    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;
+    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 &params);
+  private:
+    SignalProxy *sender;
+    SignalProxy *receiver;
+  };
+
+  // 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;
+
+  // we use one SignalRelay per QObject
+  QHash<QObject*, SignalRelay *> _relayHash;
 
+  // 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;
+  QTimer _heartBeatTimer;
+  
+  friend class SignalRelay;
+};
 
 #endif