X-Git-Url: https://git.quassel-irc.org/?p=quassel.git;a=blobdiff_plain;f=src%2Fcommon%2Fsignalproxy.h;h=69a8a9f46d45158bb05364f69d3d0971308637ce;hp=eb57ad76efc6b186eacb4ddd69d5d1a6d39c7004;hb=e111d8af8271d490365cc017c16160c4645d606b;hpb=021349871bba78f30e07e34f75cbfdda414343bd diff --git a/src/common/signalproxy.h b/src/common/signalproxy.h index eb57ad76..69a8a9f4 100644 --- a/src/common/signalproxy.h +++ b/src/common/signalproxy.h @@ -1,5 +1,5 @@ /*************************************************************************** - * Copyright (C) 2005-08 by the Quassel Project * + * Copyright (C) 2005-2012 by the Quassel Project * * devel@quassel-irc.org * * * * This program is free software; you can redistribute it and/or modify * @@ -15,12 +15,13 @@ * 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 _SIGNALPROXY_H_ -#define _SIGNALPROXY_H_ +#ifndef SIGNALPROXY_H +#define SIGNALPROXY_H +#include #include #include #include @@ -30,177 +31,292 @@ #include #include -class SignalRelay; class SyncableObject; struct QMetaObject; -class SignalProxy : public QObject { - Q_OBJECT +class SignalProxy : public QObject +{ + Q_OBJECT + + class AbstractPeer; + class IODevicePeer; + class SignalProxyPeer; + + class SignalRelay; public: - enum ProxyMode { - Server, - Client - }; - - enum RequestType { - Sync = 1, - RpcCall, - InitRequest, - InitData, - HeartBeat, - HeartBeatReply - }; - - SignalProxy(QObject *parent); - SignalProxy(ProxyMode mode, QObject *parent); - SignalProxy(ProxyMode mode, QIODevice *device, QObject *parent); - virtual ~SignalProxy(); - - void setProxyMode(ProxyMode mode); - inline ProxyMode proxyMode() const { return _proxyMode; } - - bool addPeer(QIODevice *iodev); - void removePeer(QIODevice *iodev = 0); - - bool attachSignal(QObject *sender, const char *signal, const QByteArray& sigName = QByteArray()); - bool attachSlot(const QByteArray& sigName, QObject *recv, const char *slot); - - void synchronize(SyncableObject *obj); - -// void setInitialized(SyncableObject *obj); -// bool isInitialized(SyncableObject *obj) const; - void requestInit(SyncableObject *obj); - - void detachObject(QObject *obj); - void detachSignals(QObject *sender); - void detachSlots(QObject *receiver); - void stopSync(SyncableObject *obj); - - //! 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); - - //! 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 &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 &syncMap(SyncableObject *obj); - const QHash &receiveMap(SyncableObject *obj); - int updatedRemotelyId(SyncableObject *obj); - - typedef QHash > ArgHash; - typedef QHash MethodNameHash; - struct ClassInfo { - ArgHash argTypes; - QHash returnType; - QHash minArgCount; - MethodNameHash methodNames; - int updatedRemotelyId; // id of the updatedRemotely() signal - makes things faster - QHash syncMap; - QHash receiveMap; - }; - - void dumpProxyStats(); - + enum ProxyMode { + Server, + Client + }; + + enum RequestType { + Sync = 1, + RpcCall, + InitRequest, + InitData, + HeartBeat, + HeartBeatReply + }; + + enum CustomEvents { + PeerSignal = QEvent::User, + RemovePeer + }; + + SignalProxy(QObject *parent); + SignalProxy(ProxyMode mode, QObject *parent); + SignalProxy(ProxyMode mode, QIODevice *device, QObject *parent); + virtual ~SignalProxy(); + + void setProxyMode(ProxyMode mode); + inline ProxyMode proxyMode() const { return _proxyMode; } + + void setHeartBeatInterval(int secs); + inline int heartBeatInterval() const { return _heartBeatInterval; } + void setMaxHeartBeatCount(int max); + inline int maxHeartBeatCount() const { return _maxHeartBeatCount; } + + bool addPeer(QIODevice *iodev); + 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 synchronize(SyncableObject *obj); + void stopSynchronize(SyncableObject *obj); + + //! 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); + + //! 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); + + 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); } + + bool isSecure() const { return _secure; } + void dumpProxyStats(); + +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 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(QIODevice *dev, const QVariantList ¶ms); - void receiveHeartBeatReply(QIODevice *dev, const QVariantList ¶ms); - + void dataAvailable(); + void removePeerBySender(); + void objectRenamed(const QByteArray &classname, const QString &newname, const QString &oldname); + void sendHeartBeat(); + void receiveHeartBeat(AbstractPeer *peer, const QVariantList ¶ms); + void receiveHeartBeatReply(AbstractPeer *peer, const QVariantList ¶ms); + + void updateSecureState(); + signals: - void peerRemoved(QIODevice *dev); - void connected(); - void disconnected(); - void objectInitialized(SyncableObject *); - void lagUpdated(float lag); - + void peerRemoved(QIODevice *dev); + void connected(); + void disconnected(); + void objectInitialized(SyncableObject *); + void lagUpdated(int lag); + void securityChanged(bool); + void secureStateChanged(bool); + 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 ¶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); - - 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(QIODevice *dev, float lag); + void init(); + void initServer(); + void initClient(); + + static const QMetaObject *metaObject(const QObject *obj); + + void dispatchSignal(QIODevice *receiver, const RequestType &requestType, const QVariantList ¶ms); + void dispatchSignal(const RequestType &requestType, 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()); + + void requestInit(SyncableObject *obj); + 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(); } - + void dumpSyncMap(SyncableObject *object); + inline int peerCount() const { return _peers.size(); } + private: - // Hash of used QIODevices - struct peerInfo { - quint32 byteCount; - bool usesCompression; - int sentHeartBeats; - float lag; - peerInfo() : byteCount(0), usesCompression(false), sentHeartBeats(0) {} - }; - //QHash _peerByteCount; - QHash _peers; + static void disconnectDevice(QIODevice *dev, const QString &reason = QString()); + + // 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 PeerHash; + PeerHash _peers; + + // containg a list of argtypes for fast access + QHash _extendedMetaObjects; + + // SignalRelay for all manually attached signals + SignalRelay *_signalRelay; + + // RPC function -> (object, slot ID) + typedef QPair MethodId; + typedef QMultiHash SlotHash; + SlotHash _attachedSlots; + + // slaves for sync + typedef QHash ObjectId; + QHash _syncSlave; + + ProxyMode _proxyMode; + QTimer _heartBeatTimer; + 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; +}; + + +// ================================================== +// 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 &argTypes() const { return _argTypes; } + inline int returnType() const { return _returnType; } + inline int minArgCount() const { return _minArgCount; } + inline SignalProxy::ProxyMode receiverMode() const { return _receiverMode; } - // containg a list of argtypes for fast access - QHash _classInfo; +private: + QByteArray _methodName; + QList _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); - // we use one SignalRelay per QObject - QHash _relayHash; + inline const QByteArray &methodName(int methodId) { return methodDescriptor(methodId).methodName(); } + inline const QList &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(); } - // RPC function -> (object, slot ID) - typedef QPair MethodId; - typedef QMultiHash SlotHash; - SlotHash _attachedSlots; + inline int methodId(const QByteArray &methodName) { return _methodIds.contains(methodName) ? _methodIds[methodName] : -1; } - // slaves for sync - typedef QHash ObjectId; - QHash _syncSlave; + inline int updatedRemotelyId() { return _updatedRemotelyId; } + inline const QHash &slotMap() { return _methodIds; } + const QHash &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); - ProxyMode _proxyMode; - QTimer _heartBeatTimer; - - friend class SignalRelay; + const QMetaObject *_meta; + int _updatedRemotelyId; // id of the updatedRemotely() signal - makes things faster + + QHash _methods; + QHash _methodIds; + QHash _receiveMap; // if slot x is called then hand over the result to slot y }; + +// ================================================== +// Peers +// ================================================== +class SignalProxy::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; + virtual bool isSecure() const = 0; +private: + PeerType _type; +}; + + +class SignalProxy::IODevicePeer : public SignalProxy::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); + virtual bool isSecure() const; + 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 SignalProxy::SignalProxyPeer : public SignalProxy::AbstractPeer +{ +public: + SignalProxyPeer(SignalProxy *sender, SignalProxy *receiver) : AbstractPeer(AbstractPeer::SignalProxyPeer), sender(sender), receiver(receiver) {} + virtual void dispatchSignal(const RequestType &requestType, const QVariantList ¶ms); + virtual inline bool isSecure() const { return true; } +private: + SignalProxy *sender; + SignalProxy *receiver; +}; + + #endif