joemarshall commented on code in PR #41125:
URL: https://github.com/apache/arrow/pull/41125#discussion_r1617953153
##########
cpp/src/arrow/acero/asof_join_node.cc:
##########
@@ -1425,31 +1431,86 @@ class AsofJoinNode : public ExecNode {
// The reason for this is that there are cases at the end of a table where
we don't
// know whether the RHS of the join is up-to-date until we know that the
table is
// finished.
- process_.Push(true);
+ PushProcess(true);
+
return Status::OK();
}
+ void PushProcess(bool value) {
+#ifdef ARROW_ENABLE_THREADING
+ process_.Push(value);
+#else
+ if (value) {
+ ProcessNonThreaded();
+ }
Review Comment:
I'm not sure, because there isn't really a producer thread here, but it
doesn't do anything bad adding it in, so I guess it is safer.
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