[jira] [Created] (ARROW-8763) [C++] Create RandomAccessFile::WillNeed-like API

[Antoine Pitrou (Jira)]

Antoine Pitrou created ARROW-8763:
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             Summary: [C++] Create RandomAccessFile::WillNeed-like API
                 Key: ARROW-8763
                 URL: https://issues.apache.org/jira/browse/ARROW-8763
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
            Reporter: Antoine Pitrou


We need to inform RandomAccessFile that we will need a given range or number of 
ranges.
Also call that method from MemoryMappedFile::Read and friends.

Also perhaps write specialized ReadAsync implementations?



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