// This function connects an output interface (for example a QFutureWatcher)
// to this future. While holding the lock we check the state and ready results
// and add the appropriate callouts to the queue. In order to avoid deadlocks,
// the actual callouts are made at the end while not holding the lock.
void QFutureInterfaceBasePrivate::connectOutputInterface(QFutureCallOutInterface *interface)
{
QMutexLocker locker(&m_mutex);
if (state & QFutureInterfaceBase::Started) {
interface->postCallOutEvent(QFutureCallOutEvent(QFutureCallOutEvent::Started));
interface->postCallOutEvent(QFutureCallOutEvent(QFutureCallOutEvent::ProgressRange,
m_progressMinimum,
m_progressMaximum));
interface->postCallOutEvent(QFutureCallOutEvent(QFutureCallOutEvent::Progress,
m_progressValue,
m_progressText));
}
QtPrivate::ResultIteratorBase it = m_results.begin();
while (it != m_results.end()) {
const int begin = it.resultIndex();
const int end = begin + it.batchSize();
interface->postCallOutEvent(QFutureCallOutEvent(QFutureCallOutEvent::ResultsReady,
begin,
end));
it.batchedAdvance();
}
if (state & QFutureInterfaceBase::Paused)
interface->postCallOutEvent(QFutureCallOutEvent(QFutureCallOutEvent::Paused));
if (state & QFutureInterfaceBase::Canceled)
interface->postCallOutEvent(QFutureCallOutEvent(QFutureCallOutEvent::Canceled));
if (state & QFutureInterfaceBase::Finished)
interface->postCallOutEvent(QFutureCallOutEvent(QFutureCallOutEvent::Finished));
outputConnections.append(interface);
}
