bool QDBusArgumentPrivate::checkWrite(QDBusArgumentPrivate *&d)
{
if (!d)
return false;
if (d->direction == Marshalling) {
if (!d->marshaller()->ok)
return false;
if (d->message && d->ref != 1) {
QDBusMarshaller *dd = new QDBusMarshaller;
dd->message = dbus_message_copy(d->message);
dbus_message_iter_init_append(dd->message, &dd->iterator);
QDBusArgumentPrivate *old =
qAtomicSetPtr(&d, static_cast<QDBusArgumentPrivate *>(dd));
if (!old->ref.deref())
delete old;
}
return true;
}
#ifdef QT_DEBUG
qFatal("QDBusArgument: write from a read-only object");
#else
qWarning("QDBusArgument: write from a read-only object");
#endif
return false;
}
/*!
\fn QTextDocumentFragment &QTextDocumentFragment::operator=(const QTextDocumentFragment &other)
Assigns the \a other fragment to this fragment.
*/
QTextDocumentFragment &QTextDocumentFragment::operator=(const QTextDocumentFragment &rhs)
{
QTextDocumentFragmentPrivate *x = rhs.d;
if (x)
x->ref.ref();
x = qAtomicSetPtr(&d, x);
if (x && !x->ref.deref())
delete x;
return *this;
}
QListData::Data *QListData::detach()
{
Q_ASSERT(d->ref != 1);
Data *x = static_cast<Data *>(qMalloc(DataHeaderSize + d->alloc * sizeof(void *)));
::memcpy(x, d, DataHeaderSize + d->alloc * sizeof(void *));
x->alloc = d->alloc;
x->ref.init(1);
x->sharable = true;
if (!x->alloc)
x->begin = x->end = 0;
x = qAtomicSetPtr(&d, x);
if (!x->ref.deref())
return x;
return 0;
}
/*!
\internal
*/
void QAuthenticator::detach()
{
if (!d) {
d = new QAuthenticatorPrivate;
d->ref.ref();
return;
}
if (d->ref.ref() != 1) {
QAuthenticatorPrivate *x = new QAuthenticatorPrivate(*d);
x = qAtomicSetPtr(&d, x);
if (!x->ref.deref())
delete x;
}
d->phase = QAuthenticatorPrivate::Start;
}
bool QDBusArgumentPrivate::checkReadAndDetach(QDBusArgumentPrivate *&d)
{
if (!checkRead(d))
return false; // don't bother
if (d->ref == 1)
return true; // no need to detach
QDBusDemarshaller *dd = new QDBusDemarshaller;
dd->message = dbus_message_ref(d->message);
dd->iterator = static_cast<QDBusDemarshaller*>(d)->iterator;
QDBusArgumentPrivate *old =
qAtomicSetPtr(&d, static_cast<QDBusArgumentPrivate *>(dd));
if (!old->ref.deref())
delete old;
return true;
}
