source: trunk/src/dbus/qdbusconnection_p.h@ 122

/****************************************************************************
**
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**
** This file is part of the QtDBus module of the Qt Toolkit.
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//
//  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 &currentOwner,
                      const QString &path, const QString &interface,
                      QDBusAbstractInterface *receiver, const char *signal);
    void disconnectRelay(const QString &service, const QString &currentOwner,
                         const QString &path, const QString &interface,
                         QDBusAbstractInterface *receiver, const char *signal);

    bool handleMessage(const QDBusMessage &msg);