Method ActivateRoots

tensorflow/core/common_runtime/propagator_state.cc:53–62

}

void PropagatorState::ActivateRoots(gtl::ArraySlice<const NodeItem*> roots,
                                    TaggedNodeSeq* ready) {
  mutex_lock l(root_frame_->mu);
  IterationState* root_iter = root_frame_->GetIteration(0);
  for (const NodeItem* item : roots) {
    DCHECK_EQ(item->num_inputs, 0);
    ready->emplace_back(item, root_frame_, root_iter, false);
  }
  root_iter->outstanding_ops = ready->size();
}

void PropagatorState::PropagateOutputs(const TaggedNode& tagged_node,
                                       EntryVector* outputs,