Message 372049 - Python tracker

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Author	vstinner
Recipients	vstinner
Date	2020-06-22.08:38:14
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<[email protected]>
In-reply-to

Content
To fix bpo-40170, I would like to modify Py_TRASHCAN_BEGIN() macro to use PyType_GetSlot() to get the deallocator function, rather than accessing directly the PyTypeObject.tp_dealloc member. The problem is that currently PyType_GetSlot() only works on heap allocated types. Would it be possible to add support for statically allocated types to PyType_GetSlot()? Py_TRASHCAN_BEGIN() is currently defined as: #define Py_TRASHCAN_BEGIN(op, dealloc) \ Py_TRASHCAN_BEGIN_CONDITION(op, \ Py_TYPE(op)->tp_dealloc == (destructor)(dealloc))

To fix bpo-40170, I would like to modify Py_TRASHCAN_BEGIN() macro to use PyType_GetSlot() to get the deallocator function, rather than accessing directly the PyTypeObject.tp_dealloc member. The problem is that currently PyType_GetSlot() only works on heap allocated types.

Would it be possible to add support for statically allocated types to PyType_GetSlot()?

Py_TRASHCAN_BEGIN() is currently defined as:

#define Py_TRASHCAN_BEGIN(op, dealloc) \
    Py_TRASHCAN_BEGIN_CONDITION(op, \
        Py_TYPE(op)->tp_dealloc == (destructor)(dealloc))

History
Date	User	Action	Args
2020-06-22 08:38:14	vstinner	set	recipients: + vstinner
2020-06-22 08:38:14	vstinner	set	messageid: <[email protected]>
2020-06-22 08:38:14	vstinner	link	issue41073 messages
2020-06-22 08:38:14	vstinner	create