ARROW-12040: [C++] Fix potential deadlock in recursive S3 walks - #9842

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westonpace wants to merge 4 commits into

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westonpace:bugfix/arrow-12040

Commits on Apr 6, 2021

ARROW-12040: Switch to using task group instead of manually tracking tasks in flight. This makes the walker thread safe so we can get rid of the mutex
westonpace
committed
d8d7bcd
ARROW-12040: The mutex is still necessary to guard the calls to the various handlers as they are not thread safe
westonpace
committed
d81ebc2
ARROW-12040: Addressing comments from PR
westonpace
committed
e362029

Commits on Apr 7, 2021

Nit: remove unused include
pitrou
committed
df50ffe