Weston Pace created ARROW-13139:
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Summary: [C++] ReadaheadGenerator cannot be safely copied/moved
Key: ARROW-13139
URL: https://issues.apache.org/jira/browse/ARROW-13139
Project: Apache Arrow
Issue Type: Bug
Components: C++
Reporter: Weston Pace
Fix For: 5.0.0
The readahead generator is one of the older generators and it isn't using the
newer style of encapsulating all of its state within a state struct &
shared_ptr. As a result, if it is copied or moved, then the result is
unpredictable.
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