[3.14] gh-134908: Protect textiowrapper_iternext with critical section (gh-134910)#135039
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…on (pythongh-134910) The `textiowrapper_iternext` function called `_textiowrapper_writeflush`, but did not use a critical section, making it racy in free-threaded builds. (cherry picked from commit 44fb7c3) Co-authored-by: Duane Griffin <duaneg@dghda.com>
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The
textiowrapper_iternextfunction called_textiowrapper_writeflush, but did notuse a critical section, making it racy in free-threaded builds.
(cherry picked from commit 44fb7c3)
Co-authored-by: Duane Griffin duaneg@dghda.com
textiowrapper_iternextand writing to a text file simultaneously in ft build #134908