pitrou commented on a change in pull request #11535:
URL: https://github.com/apache/arrow/pull/11535#discussion_r741899792
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File path: cpp/src/arrow/ipc/message.cc
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@@ -290,7 +291,8 @@ Result<std::unique_ptr<Message>> ReadMessage(int64_t
offset, int32_t metadata_le
decoder.next_required_size());
}
- ARROW_ASSIGN_OR_RAISE(auto metadata, file->ReadAt(offset, metadata_length));
+ int64_t to_read = body_length > 0 ? (metadata_length + body_length) :
metadata_length;
Review comment:
Just to be sure, this does take padding into account?
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