[3.10] [3.11] gh-99952: fix refcount issues in ctypes.Structure from_param() result (GH-101339) #101340
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[3.11] gh-99952: [ctypes] fix refcount issues in from_param() result. (GH-100169)
Fixes a reference counting issue with
ctypes.Structure
when afrom_param()
method call is used and the structure size is larger than a C pointersizeof(void*)
.This problem existed for a very long time, but became more apparent in 3.8+ by change likely due to garbage collection cleanup timing changes..
(cherry picked from commit dfad678)
(cherry picked from commit fa7c37a)
Co-authored-by: Gregory P. Smith [email protected]
Co-authored-by: Yukihiro Nakadaira [email protected]
Automerge-Triggered-By: GH:gpshead