--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/dbus/qdbusconnection_p.h Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,317 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDBus module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the public API. This header file may
+// change from version to version without notice, or even be
+// removed.
+//
+// We mean it.
+//
+//
+
+#ifndef QDBUSCONNECTION_P_H
+#define QDBUSCONNECTION_P_H
+
+#include <qdbuserror.h>
+#include <qdbusconnection.h>
+
+#include <QtCore/qatomic.h>
+#include <QtCore/qhash.h>
+#include <QtCore/qmutex.h>
+#include <QtCore/qobject.h>
+#include <QtCore/qpointer.h>
+#include <QtCore/qreadwritelock.h>
+#include <QtCore/qstringlist.h>
+#include <QtCore/qvarlengtharray.h>
+#include <QtCore/qvector.h>
+
+#include <qdbus_symbols_p.h>
+
+#include <qdbusmessage.h>
+
+QT_BEGIN_NAMESPACE
+
+class QDBusMessage;
+class QSocketNotifier;
+class QTimerEvent;
+class QDBusObjectPrivate;
+class QDBusCallDeliveryEvent;
+class QDBusActivateObjectEvent;
+class QMetaMethod;
+class QDBusInterfacePrivate;
+struct QDBusMetaObject;
+class QDBusAbstractInterface;
+class QDBusConnectionInterface;
+class QDBusPendingCallPrivate;
+
+class QDBusErrorInternal
+{
+ mutable DBusError error;
+ Q_DISABLE_COPY(QDBusErrorInternal)
+public:
+ inline QDBusErrorInternal() { q_dbus_error_init(&error); }
+ inline ~QDBusErrorInternal() { q_dbus_error_free(&error); }
+ inline bool operator !() const { return !q_dbus_error_is_set(&error); }
+ inline operator DBusError *() { q_dbus_error_free(&error); return &error; }
+ inline operator QDBusError() const { QDBusError err(&error); q_dbus_error_free(&error); return err; }
+};
+
+// QDBusConnectionPrivate holds the DBusConnection and
+// can have many QDBusConnection objects referring to it
+
+class QDBusConnectionPrivate: public QObject
+{
+ Q_OBJECT
+public:
+ // structs and enums
+ enum ConnectionMode { InvalidMode, ServerMode, ClientMode, PeerMode }; // LocalMode
+
+ struct Watcher
+ {
+ Watcher(): watch(0), read(0), write(0) {}
+ DBusWatch *watch;
+ QSocketNotifier *read;
+ QSocketNotifier *write;
+ };
+
+ struct SignalHook
+ {
+ inline SignalHook() : obj(0), midx(-1) { }
+ QString owner, service, path, signature;
+ QObject* obj;
+ int midx;
+ QList<int> params;
+ QByteArray matchRule;
+ };
+
+ struct ObjectTreeNode
+ {
+ typedef QVector<ObjectTreeNode> DataList;
+
+ inline ObjectTreeNode() : obj(0), flags(0) { }
+ inline ObjectTreeNode(const QString &n) // intentionally implicit
+ : name(n), obj(0), flags(0) { }
+ inline ~ObjectTreeNode() { }
+ inline bool operator<(const QString &other) const
+ { return name < other; }
+ inline bool operator<(const QStringRef &other) const
+ { return QStringRef(&name) < other; }
+
+ QString name;
+ QObject* obj;
+ int flags;
+ DataList children;
+ };
+
+public:
+ // typedefs
+ typedef QMultiHash<int, Watcher> WatcherHash;
+ typedef QHash<int, DBusTimeout *> TimeoutHash;
+ typedef QList<QPair<DBusTimeout *, int> > PendingTimeoutList;
+
+ typedef QMultiHash<QString, SignalHook> SignalHookHash;
+ typedef QHash<QString, QDBusMetaObject* > MetaObjectHash;
+ typedef QHash<QByteArray, int> MatchRefCountHash;
+
+public:
+ // public methods are entry points from other objects
+ explicit QDBusConnectionPrivate(QObject *parent = 0);
+ ~QDBusConnectionPrivate();
+ void deleteYourself();
+
+ void setBusService(const QDBusConnection &connection);
+ void setPeer(DBusConnection *connection, const QDBusErrorInternal &error);
+ void setConnection(DBusConnection *connection, const QDBusErrorInternal &error);
+ void setServer(DBusServer *server, const QDBusErrorInternal &error);
+ void closeConnection();
+
+ QString getNameOwner(const QString &service);
+
+ int send(const QDBusMessage &message);
+ QDBusMessage sendWithReply(const QDBusMessage &message, int mode, int timeout = -1);
+ QDBusMessage sendWithReplyLocal(const QDBusMessage &message);
+ QDBusPendingCallPrivate *sendWithReplyAsync(const QDBusMessage &message, int timeout = -1);
+ int sendWithReplyAsync(const QDBusMessage &message, QObject *receiver,
+ const char *returnMethod, const char *errorMethod, int timeout = -1);
+ void connectSignal(const QString &key, const SignalHook &hook);
+ SignalHookHash::Iterator disconnectSignal(SignalHookHash::Iterator &it);
+ void registerObject(const ObjectTreeNode *node);
+ void connectRelay(const QString &service, const QString ¤tOwner,
+ const QString &path, const QString &interface,
+ QDBusAbstractInterface *receiver, const char *signal);
+ void disconnectRelay(const QString &service, const QString ¤tOwner,
+ const QString &path, const QString &interface,
+ QDBusAbstractInterface *receiver, const char *signal);
+
+ bool handleMessage(const QDBusMessage &msg);
+ void waitForFinished(QDBusPendingCallPrivate *pcall);
+
+ QDBusMetaObject *findMetaObject(const QString &service, const QString &path,
+ const QString &interface, QDBusError &error);
+
+ void registerService(const QString &serviceName);
+ void unregisterService(const QString &serviceName);
+
+ void postEventToThread(int action, QObject *target, QEvent *event);
+
+ inline void serverConnection(const QDBusConnection &connection)
+ { emit newServerConnection(connection); }
+
+private:
+ void checkThread();
+ bool handleError(const QDBusErrorInternal &error);
+
+ void handleSignal(const QString &key, const QDBusMessage &msg);
+ void handleSignal(const QDBusMessage &msg);
+ void handleObjectCall(const QDBusMessage &message);
+
+ void activateSignal(const SignalHook& hook, const QDBusMessage &msg);
+ void activateObject(ObjectTreeNode &node, const QDBusMessage &msg, int pathStartPos);
+ bool activateInternalFilters(const ObjectTreeNode &node, const QDBusMessage &msg);
+ bool activateCall(QObject *object, int flags, const QDBusMessage &msg);
+
+ void sendError(const QDBusMessage &msg, QDBusError::ErrorType code);
+ void deliverCall(QObject *object, int flags, const QDBusMessage &msg,
+ const QList<int> &metaTypes, int slotIdx);
+
+ bool isServiceRegisteredByThread(const QString &serviceName) const;
+
+protected:
+ void customEvent(QEvent *e);
+ void timerEvent(QTimerEvent *e);
+
+public slots:
+ // public slots
+ void doDispatch();
+ void socketRead(int);
+ void socketWrite(int);
+ void objectDestroyed(QObject *o);
+ void relaySignal(QObject *obj, const QMetaObject *, int signalId, const QVariantList &args);
+ void _q_serviceOwnerChanged(const QString &name, const QString &oldOwner, const QString &newOwner);
+
+signals:
+ void serviceOwnerChanged(const QString &name, const QString &oldOwner, const QString &newOwner);
+ void callWithCallbackFailed(const QDBusError &error, const QDBusMessage &message);
+ void newServerConnection(const QDBusConnection &connection);
+
+public:
+ QAtomicInt ref;
+ QString name; // this connection's name
+ QString baseService; // this connection's base service
+
+ ConnectionMode mode;
+
+ // members accessed in unlocked mode (except for deletion)
+ // connection and server provide their own locking mechanisms
+ // busService doesn't have state to be changed
+ DBusConnection *connection;
+ DBusServer *server;
+ QDBusConnectionInterface *busService;
+
+ // watchers and timeouts are accessed from any thread
+ // but the corresponding timer and QSocketNotifier must be handled
+ // only in the object's thread
+ QMutex watchAndTimeoutLock;
+ WatcherHash watchers;
+ TimeoutHash timeouts;
+ PendingTimeoutList timeoutsPendingAdd;
+
+ // members accessed through a lock
+ QMutex dispatchLock;
+ QReadWriteLock lock;
+ QDBusError lastError;
+
+ QStringList serviceNames;
+ SignalHookHash signalHooks;
+ MatchRefCountHash matchRefCounts;
+ ObjectTreeNode rootNode;
+ MetaObjectHash cachedMetaObjects;
+
+ QMutex callDeliveryMutex;
+ QDBusCallDeliveryEvent *callDeliveryState; // protected by the callDeliveryMutex mutex
+
+public:
+ // static methods
+ static int findSlot(QObject *obj, const QByteArray &normalizedName, QList<int>& params);
+ static bool prepareHook(QDBusConnectionPrivate::SignalHook &hook, QString &key,
+ const QString &service, const QString &owner,
+ const QString &path, const QString &interface, const QString &name,
+ QObject *receiver, const char *signal, int minMIdx,
+ bool buildSignature);
+ static DBusHandlerResult messageFilter(DBusConnection *, DBusMessage *, void *);
+ static QDBusCallDeliveryEvent *prepareReply(QDBusConnectionPrivate *target, QObject *object,
+ int idx, const QList<int> &metaTypes,
+ const QDBusMessage &msg);
+ static void processFinishedCall(QDBusPendingCallPrivate *call);
+
+ static QDBusConnectionPrivate *d(const QDBusConnection& q) { return q.d; }
+ static QDBusConnection q(QDBusConnectionPrivate *connection) { return QDBusConnection(connection); }
+
+ static void setSender(const QDBusConnectionPrivate *s);
+ static void setConnection(const QString &name, QDBusConnectionPrivate *c);
+
+ friend class QDBusActivateObjectEvent;
+ friend class QDBusCallDeliveryEvent;
+};
+
+// in qdbusmisc.cpp
+extern int qDBusParametersForMethod(const QMetaMethod &mm, QList<int>& metaTypes);
+extern int qDBusNameToTypeId(const char *name);
+extern bool qDBusCheckAsyncTag(const char *tag);
+extern bool qDBusInterfaceInObject(QObject *obj, const QString &interface_name);
+extern QString qDBusInterfaceFromMetaObject(const QMetaObject *mo);
+
+// in qdbusinternalfilters.cpp
+extern QString qDBusIntrospectObject(const QDBusConnectionPrivate::ObjectTreeNode &node);
+extern QDBusMessage qDBusPropertyGet(const QDBusConnectionPrivate::ObjectTreeNode &node,
+ const QDBusMessage &msg);
+extern QDBusMessage qDBusPropertySet(const QDBusConnectionPrivate::ObjectTreeNode &node,
+ const QDBusMessage &msg);
+extern QDBusMessage qDBusPropertyGetAll(const QDBusConnectionPrivate::ObjectTreeNode &node,
+ const QDBusMessage &msg);
+
+QT_END_NAMESPACE
+
+#endif