rtpsw commented on code in PR #35902:
URL: https://github.com/apache/arrow/pull/35902#discussion_r1218261678
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cpp/src/arrow/acero/source_node.cc:
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@@ -263,6 +263,22 @@ struct SourceNode : ExecNode, public TracedNode {
to_finish.MarkFinished();
}
+ Status StopProducing() override {
+ // GH-35837: ensure node is not paused
+ Future<> to_finish;
+ {
+ std::lock_guard<std::mutex> lg(mutex_);
+ if (!backpressure_future_.is_finished()) {
Review Comment:
This code block implements essentially the same logic as `ResumeProducing`,
which @westonpace could likely explain better than myself.
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