Nikita Shulga 79cb013f1f fix: allow users to avoid thread termination in scoped_released (#2657) ... * Avoid thread termination in scoped_released Do not call `PyEval_RestoreThread()` from `~gil_scoped_release()` if python runtime is finalizing, as it will result in thread termination in Python runtime newer than 3.6, as documented in https://docs.python.org/3/c-api/init.html#c.PyEval_RestoreThread Similarly do not call `PyThreadState_DeleteCurrent` from `~gil_scoped_acquire()` if runtime is finalizing. Discovered while debugging PyTorch crash using Python-3.9 described in https://github.com/pytorch/pytorch/issues/47776 * Simplify _Py_IsFinalizing() availability check * Fix typo * Add version agnostic `detail::finalization_guard()` * Move `finalization_guard` to detail/common.h And rename it to `is_finalizing` * Move `is_finalizing()` back to pybind11.h * Simplify `is_finalizing()` check One should follow documentation rather than make any assumptions * feat: disarm * docs: fix comment Co-authored-by: Henry Schreiner <henryschreineriii@gmail.com>		2020-12-19 15:45:19 -05:00
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pybind11	fix: allow users to avoid thread termination in scoped_released (#2657)	2020-12-19 15:45:19 -05:00