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gh-120496: Use CAS approach for rangeiter_next #120534

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gh-120496: Use CAS approach for rangeiter_next #120534

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gh-120496: Use CAS approach for rangeiter_next
corona10 Jun 15, 2024
2d9ac70
nit
corona10 Jun 15, 2024
a547e9d
nit
corona10 Jun 15, 2024
6ee317a
fix
corona10 Jun 15, 2024
fd95922
More optimization
corona10 Jun 15, 2024
901ea19
Update atomic package
corona10 Jun 15, 2024
827d38b
fix
corona10 Jun 15, 2024
805a90e
fix
corona10 Jun 15, 2024
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@corona10
corona10 committed Jun 15, 2024
commit fd95922203452223b5f76b58dad40b541abcb7f7
3 changes: 2 additions & 1 deletion Objects/rangeobject.c
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Original file line number Diff line number Diff line change
Expand Up @@ -817,7 +817,8 @@ static PyObject *
rangeiter_next(_PyRangeIterObject *r)
{
#ifdef Py_GIL_DISABLED
int64_t step = _Py_atomic_load_int64_relaxed(&r->step);
// r->step is readonly attribute, so we can assume it is not changed.
int64_t step = (int64_t)r->step;
do {
int64_t len = _Py_atomic_load_int64_relaxed(&r->len);
if (len <= 0) {
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