Commitd99fe74

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Add PyUnstable_Object_IsUniquelyReferenced

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Lines changed: 18 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -2211,6 +2211,24 @@ PyConfig_GetInt(const char name, int value)`
`2211`	`2211`	`}`
`2212`	`2212`	`#endif// PY_VERSION_HEX > 0x03090000 && !defined(PYPY_VERSION)`
`2213`	`2213`
	`2214`	`+// gh-133144 added PyUnstable_Object_IsUniquelyReferenced() to Python 3.14.0b1`
	`2215`	`+// Adapted from _PyObject_IsUniquelyReferenced implementation`
	`2216`	`+#if PY_VERSION_HEX < 0x030E00B0`
	`2217`	`+staticinlineintPyUnstable_Object_IsUniquelyReferenced(PyObject *obj)`
	`2218`	`+{`
	`2219`	`+#if !defined(Py_GIL_DISABLED)`
	`2220`	`+returnPy_REFCNT(obj) ==1;`
	`2221`	`+#else`
	`2222`	`+// NOTE: the entire ob_ref_shared field must be zero, including flags, to`
	`2223`	`+// ensure that other threads cannot concurrently create new references to`
	`2224`	`+// this object.`
	`2225`	`+return (_Py_IsOwnedByCurrentThread(obj) &&`
	`2226`	`+_Py_atomic_load_uint32_relaxed(&obj->ob_ref_local) ==1 &&`
	`2227`	`+_Py_atomic_load_ssize_relaxed(&obj->ob_ref_shared) ==0);`
	`2228`	`+#endif`
	`2229`	`+}`
	`2230`	`+#endif`
	`2231`	`+`
`2214`	`2232`
`2215`	`2233`	`#if PY_VERSION_HEX < 0x030F0000`
`2216`	`2234`	`staticinline PyObject*`

Lines changed: 22 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -1953,6 +1953,27 @@ test_unicodewriter_format(PyObject Py_UNUSED(self), PyObject Py_UNUSED(args))`
`1953`	`1953`	`}`
`1954`	`1954`	`#endif`
`1955`	`1955`
	`1956`	`+staticPyObject*`
	`1957`	`+test_uniquely_referenced(PyObjectPy_UNUSED(self),PyObjectPy_UNUSED(args))`
	`1958`	`+{`
	`1959`	`+constchar*str="Hello World";`
	`1960`	`+PyObject*obj=PyUnicode_FromString(str);`
	`1961`	`+if (obj==NULL) {`
	`1962`	`+returnNULL;`
	`1963`	`+ }`
	`1964`	`+`
	`1965`	`+assert(PyUnstable_Object_IsUniquelyReferenced(obj));`
	`1966`	`+`
	`1967`	`+Py_INCREF(obj);`
	`1968`	`+`
	`1969`	`+assert(!PyUnstable_Object_IsUniquelyReferenced(obj));`
	`1970`	`+`
	`1971`	`+Py_DECREF(obj);`
	`1972`	`+Py_DECREF(obj);`
	`1973`	`+`
	`1974`	`+Py_RETURN_NONE;`
	`1975`	`+}`
	`1976`	`+`
`1956`	`1977`
`1957`	`1978`	`staticPyObject*`
`1958`	`1979`	`test_bytes(PyObjectPy_UNUSED(module),PyObjectPy_UNUSED(args))`
`@@ -2309,6 +2330,7 @@ static struct PyMethodDef methods[] = {`
`2309`	`2330`	`{"test_config",test_config,METH_NOARGS,_Py_NULL},`
`2310`	`2331`	`#endif`
`2311`	`2332`	`{"test_sys",test_sys,METH_NOARGS,_Py_NULL},`
	`2333`	`+ {"test_uniquely_referenced",test_uniquely_referenced,METH_NOARGS,_Py_NULL},`
`2312`	`2334`	`{_Py_NULL,_Py_NULL,0,_Py_NULL}`
`2313`	`2335`	`};`
`2314`	`2336`

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