C++ (Cpp) q_dbus_message_iter_recurse Examples

Example #1

bool QDBusMarshaller::appendCrossMarshalling(QDBusDemarshaller *demarshaller)
{
    int code = q_dbus_message_iter_get_arg_type(&demarshaller->iterator);
    if (QDBusUtil::isValidBasicType(code)) {
        // easy: just append
        // do exactly like the D-BUS docs suggest
        // (see apidocs for q_dbus_message_iter_get_basic)

        qlonglong value;
        q_dbus_message_iter_get_basic(&demarshaller->iterator, &value);
        q_dbus_message_iter_next(&demarshaller->iterator);
        q_dbus_message_iter_append_basic(&iterator, code, &value);
        return true;
    }

    if (code == DBUS_TYPE_ARRAY) {
        int element = q_dbus_message_iter_get_element_type(&demarshaller->iterator);
        if (QDBusUtil::isValidFixedType(element) && element != DBUS_TYPE_UNIX_FD) {
            // another optimization: fixed size arrays
            // code is exactly like QDBusDemarshaller::toByteArray
            DBusMessageIter sub;
            q_dbus_message_iter_recurse(&demarshaller->iterator, &sub);
            q_dbus_message_iter_next(&demarshaller->iterator);
            int len;
            void* data;
            q_dbus_message_iter_get_fixed_array(&sub,&data,&len);

            char signature[2] = { char(element), 0 };
            q_dbus_message_iter_open_container(&iterator, DBUS_TYPE_ARRAY, signature, &sub);
            q_dbus_message_iter_append_fixed_array(&sub, element, &data, len);
            q_dbus_message_iter_close_container(&iterator, &sub);

            return true;
        }
    }

    // We have to recurse
    QDBusDemarshaller *drecursed = demarshaller->beginCommon();

    QDBusMarshaller mrecursed(capabilities);  // create on the stack makes it autoclose
    QByteArray subSignature;
    const char *sig = 0;
    if (code == DBUS_TYPE_VARIANT || code == DBUS_TYPE_ARRAY) {
        subSignature = drecursed->currentSignature().toLatin1();
        if (!subSignature.isEmpty())
            sig = subSignature.constData();
    }
    open(mrecursed, code, sig);

    while (!drecursed->atEnd()) {
        if (!mrecursed.appendCrossMarshalling(drecursed)) {
            delete drecursed;
            return false;
        }
    }

    delete drecursed;
    return true;
}

Example #2

inline QDBusVariant QDBusDemarshaller::toVariant()
{
    QDBusDemarshaller sub;
    sub.message = q_dbus_message_ref(message);
    q_dbus_message_iter_recurse(&iterator, &sub.iterator);
    q_dbus_message_iter_next(&iterator);

    return QDBusVariant( sub.toVariantInternal() );
}

Example #3

QByteArray QDBusDemarshaller::toByteArray()
{
    DBusMessageIter sub;
    q_dbus_message_iter_recurse(&iterator, &sub);
    q_dbus_message_iter_next(&iterator);
    int len;
    char* data;
    q_dbus_message_iter_get_fixed_array(&sub,&data,&len);
    return QByteArray(data,len);
}

Example #4

QDBusDemarshaller *QDBusDemarshaller::beginCommon()
{
    QDBusDemarshaller *d = new QDBusDemarshaller;
    d->parent = this;
    d->message = q_dbus_message_ref(message);

    // recurse
    q_dbus_message_iter_recurse(&iterator, &d->iterator);
    q_dbus_message_iter_next(&iterator);
    return d;
}

Example #5

QStringList QDBusDemarshaller::toStringList()
{
    QStringList list;

    QDBusDemarshaller sub;
    q_dbus_message_iter_recurse(&iterator, &sub.iterator);
    q_dbus_message_iter_next(&iterator);
    while (!sub.atEnd())
        list.append(sub.toString());

    return list;
}