STINNER Victor <vstin...@python.org> added the comment:
> Py_TRASHCAN_SAFE_BEGIN and Py_TRASHCAN_SAFE_END
I excluded the TRASHCAN API from the limited C API:
commit 0fa4f43db086ac3459811cca4ec5201ffbee694a
Author: Victor Stinner <vstin...@python.org>
Date: Wed Feb 5 12:23:27 2020 +0100
bpo-39542: Exclude trashcan from the limited C API (GH-18362)
Exclude trashcan mechanism from the limited C API: it requires access to
PyTypeObject and PyThreadState structure fields, whereas these structures
are opaque in the limited C API.
The trashcan mechanism never worked with the limited C API. Move it
from object.h to cpython/object.h.
Then I modified these macros to hide implementation details:
commit 38965ec5411da60d312b59be281f3510d58e0cf1
Author: Victor Stinner <vstin...@python.org>
Date: Fri Mar 13 16:51:52 2020 +0100
bpo-39947: Hide implementation detail of trashcan macros (GH-18971)
Py_TRASHCAN_BEGIN_CONDITION and Py_TRASHCAN_END macro no longer
access PyThreadState attributes, but call new private
_PyTrash_begin() and _PyTrash_end() functions which hide
implementation details.
> Py_EnterRecursiveCall, Py_LeaveRecursiveCall, _Py_MakeRecCheck
Py_EnterRecursiveCall() and Py_LeaveRecursiveCall() are now function calls. I
move the "inline" implementation the internal C API.
commit 224481a8c988fca12f488544edd2f01c0af2a91d
Author: Victor Stinner <vstin...@python.org>
Date: Fri Mar 13 10:19:38 2020 +0100
bpo-39947: Move Py_EnterRecursiveCall() to internal C API (GH-18972)
Move the static inline function flavor of Py_EnterRecursiveCall() and
Py_LeaveRecursiveCall() to the internal C API: they access
PyThreadState attributes. The limited C API provides regular
functions which hide implementation details.
> Py_ALLOW_RECURSION, Py_END_ALLOW_RECURSION
Oh right, these macros should be modified to not access
PyThreadState.recursion_critical member directly.
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<https://bugs.python.org/issue35949>
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