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gh-126703: Add freelists for list and tuple iterators (GH-128592)

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Pieter Eendebak 2025-01-29 10:15:24 +01:00 • committed by GitHub
parent 41ad2bb248
commit 1a80214f11
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5 changed files with 24 additions and 12 deletions
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14
Objects/tupleobject.c
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@ -993,7 +993,8 @@ tupleiter_dealloc(PyObject *self)
_PyTupleIterObject *it = _PyTupleIterObject_CAST(self);
_PyObject_GC_UNTRACK(it);
Py_XDECREF(it->it_seq);
PyObject_GC_Del(it);
assert(Py_IS_TYPE(self, &PyTupleIter_Type));
_Py_FREELIST_FREE(tuple_iters, it, PyObject_GC_Del);
}
static int
@ -1119,15 +1120,16 @@ PyTypeObject PyTupleIter_Type = {
static PyObject *
tuple_iter(PyObject *seq)
{
_PyTupleIterObject *it;
if (!PyTuple_Check(seq)) {
PyErr_BadInternalCall();
return NULL;
}
it = PyObject_GC_New(_PyTupleIterObject, &PyTupleIter_Type);
if (it == NULL)
return NULL;
_PyTupleIterObject *it = _Py_FREELIST_POP(_PyTupleIterObject, tuple_iters);
if (it == NULL) {
it = PyObject_GC_New(_PyTupleIterObject, &PyTupleIter_Type);
if (it == NULL)
return NULL;
}
it->it_index = 0;
it->it_seq = (PyTupleObject *)Py_NewRef(seq);
_PyObject_GC_TRACK(it);