commit ff4584caca04cb3da0dbd5b1e9bf67e40adf5312
author Victor Stinner <vstinner@python.org> Fri Mar 13 18:03:56 2020 +0100
committer GitHub <noreply@github.com> Fri Mar 13 18:03:56 2020 +0100
tree fedb1e89a042baedb4475e76b12fcf79e2f77837
parent 6d674a1bf456945eb758e85c11484a9f1494f2b4

bpo-39947: Use _PyInterpreterState_GET_UNSAFE() (GH-18978)

Replace _PyInterpreterState_Get() function call with
_PyInterpreterState_GET_UNSAFE() macro which is more efficient but
don't check if tstate or interp is NULL.

_Py_GetConfigsAsDict() now uses _PyThreadState_GET().

Modules/_threadmodule.c

diff --git a/Modules/_threadmodule.c b/Modules/_threadmodule.c
index ee70183..19dd704 100644
--- a/Modules/_threadmodule.c
+++ b/Modules/_threadmodule.c
@@ -1061,7 +1061,7 @@
     boot = PyMem_NEW(struct bootstate, 1);
     if (boot == NULL)
         return PyErr_NoMemory();
-    boot->interp = _PyInterpreterState_Get();
+    boot->interp = _PyInterpreterState_GET_UNSAFE();
     boot->func = func;
     boot->args = args;
     boot->keyw = keyw;
@@ -1183,7 +1183,7 @@
 static PyObject *
 thread__count(PyObject *self, PyObject *Py_UNUSED(ignored))
 {
-    PyInterpreterState *interp = _PyInterpreterState_Get();
+    PyInterpreterState *interp = _PyInterpreterState_GET_UNSAFE();
     return PyLong_FromLong(interp->num_threads);
 }
 
@@ -1542,7 +1542,7 @@
     PyObject *m, *d, *v;
     double time_max;
     double timeout_max;
-    PyInterpreterState *interp = _PyInterpreterState_Get();
+    PyInterpreterState *interp = _PyInterpreterState_GET_UNSAFE();
 
     /* Initialize types: */
     if (PyType_Ready(&localdummytype) < 0)