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gh-90667: Add specializations of Py_DECREF when types are known (GH-30872)

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Dennis Sweeney 2022-04-19 14:02:19 -04:00 • committed by GitHub
parent ab0d35d70d
commit da6c78584b
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13 changed files with 147 additions and 85 deletions
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37
Include/internal/pycore_object.h
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@ -14,7 +14,6 @@ extern "C" {
#include "pycore_pystate.h" // _PyInterpreterState_GET()
#include "pycore_runtime.h" // _PyRuntime
#define _PyObject_IMMORTAL_INIT(type) \
{ \
.ob_refcnt = 999999999, \
@ -26,6 +25,42 @@ extern "C" {
.ob_size = size, \
}
PyAPI_FUNC(void) _Py_NO_RETURN _Py_FatalRefcountErrorFunc(
const char *func,
const char *message);
#define _Py_FatalRefcountError(message) _Py_FatalRefcountErrorFunc(__func__, message)
static inline void
_Py_DECREF_SPECIALIZED(PyObject *op, const destructor destruct)
{
#ifdef Py_REF_DEBUG
_Py_RefTotal--;
#endif
if (--op->ob_refcnt != 0) {
assert(op->ob_refcnt > 0);
}
else {
#ifdef Py_TRACE_REFS
_Py_ForgetReference(op);
#endif
destruct(op);
}
}
static inline void
_Py_DECREF_NO_DEALLOC(PyObject *op)
{
#ifdef Py_REF_DEBUG
_Py_RefTotal--;
#endif
op->ob_refcnt--;
#ifdef Py_DEBUG
if (op->ob_refcnt <= 0) {
_Py_FatalRefcountError("Expected a positive remaining refcount");
}
#endif
}
PyAPI_FUNC(int) _PyType_CheckConsistency(PyTypeObject *type);
PyAPI_FUNC(int) _PyDict_CheckConsistency(PyObject *mp, int check_content);