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bpo-40521: Disable list free list in subinterpreters (GH-19959)

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When Python is built with experimental isolated interpreters, disable
the list free list.

Temporary workaround until this cache is made per-interpreter.
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Victor Stinner 2020-05-06 19:05:27 +02:00 • committed by GitHub
parent d8135e913a
commit b7aa23d29f
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1 changed files with 8 additions and 1 deletions
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7
Objects/listobject.c
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@ -100,6 +100,13 @@ list_preallocate_exact(PyListObject *self, Py_ssize_t size)
#ifndef PyList_MAXFREELIST #ifndef PyList_MAXFREELIST
# define PyList_MAXFREELIST 80 # define PyList_MAXFREELIST 80
#endif #endif
/* bpo-40521: list free lists are shared by all interpreters. */
#ifdef EXPERIMENTAL_ISOLATED_SUBINTERPRETERS
# undef PyList_MAXFREELIST
# define PyList_MAXFREELIST 0
#endif
static PyListObject *free_list[PyList_MAXFREELIST]; static PyListObject *free_list[PyList_MAXFREELIST];
static int numfree = 0; static int numfree = 0;