bpo-38733: PyErr_Occurred() caller must hold the GIL #17080
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bpo-3605, bpo-38733: Optimize _PyErr_Occurred(): remove "tstate == NULL" test. Py_FatalError() no longer calls PyErr_Occurred() if called without holding the GIL. So PyErr_Occurred() no longer has to support tstate==NULL case. _Py_CheckFunctionResult(): use directly _PyErr_Occurred() to avoid explicit "!= NULL" test.
vstinner
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@pablogsal, @serhiy-storchaka, @methane, @pitrou: Would you mind to review this change? I didn't add a NEWS entry since I consider that PyErr_Occurred() caller always had to hold the GIL. Do you consider that it should be documented? |
serhiy-storchaka
approved these changes
Nov 7, 2019
|
@pitrou, @serhiy-storchaka: Oh, thanks for your quick approval. I really wasn't sure about this change on the critical function PyErr_Occurred(). Well, if this change breaks too many projects, we still have time to revert is before 3.9 final and plan a better upgrade path ;-) |
jacobneiltaylor
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Dec 5, 2019
bpo-3605, bpo-38733: Optimize _PyErr_Occurred(): remove "tstate == NULL" test. Py_FatalError() no longer calls PyErr_Occurred() if called without holding the GIL. So PyErr_Occurred() no longer has to support tstate==NULL case. _Py_CheckFunctionResult(): use directly _PyErr_Occurred() to avoid explicit "!= NULL" test.
shihai1991
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Jan 31, 2020
bpo-3605, bpo-38733: Optimize _PyErr_Occurred(): remove "tstate == NULL" test. Py_FatalError() no longer calls PyErr_Occurred() if called without holding the GIL. So PyErr_Occurred() no longer has to support tstate==NULL case. _Py_CheckFunctionResult(): use directly _PyErr_Occurred() to avoid explicit "!= NULL" test.
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bpo-3605, bpo-38733: Optimize _PyErr_Occurred(): remove "tstate ==
NULL" test.
Py_FatalError() no longer calls PyErr_Occurred() if called without
holding the GIL. So PyErr_Occurred() no longer has to support
tstate==NULL case.
_Py_CheckFunctionResult(): use directly _PyErr_Occurred() to avoid
explicit "!= NULL" test.
https://bugs.python.org/issue38733