GH-15054: [C++] Change s3 finalization to happen after arrow threads finished, add pyarrow exit hook#33858

Merged

westonpace merged 9 commits intoapache:mainfrom

westonpace:bugfix/GH-15054--s3-crash-on-exit

Apr 15, 2023

Commits on Apr 14, 2023

Changed s3 finalization to happen after arrow threads finished
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Change constructor to explicit per lint
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Get rid of aws_initiailized variable
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Fixed up the initialization logic so it is contained within the instance, detects repeat initialization attempts, and is safer.
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Move aws_options inside singleton. Clarify that FinalizeS3 MUST be called. Add shutdown hook for R
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Removed a debug print. Removed an extra nested .onLoad function. Use a dedicated environment instead of the parent environment
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Add explanatory comment per PR review
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R lint fix
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Commits on Apr 15, 2023

Added a warning that should help users remember to call Finalize
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