bpo-39465: Use _PyInterpreterState_GET() (GH-20788)

Replace _PyThreadState_GET() with _PyInterpreterState_GET() in:

* get_small_int()
* gcmodule.c: add also get_gc_state() function
* _PyTrash_deposit_object()
* _PyTrash_destroy_chain()
* warnings_get_state()
* Py_GetRecursionLimit()

Cleanup listnode.c: add 'parser' variable.

2 files changed, 6 insertions, 6 deletions

diff --git a/Objects/longobject.c b/Objects/longobject.c
index ce10c4f..dead3e3 100644
--- a/Objects/longobject.c
+++ b/Objects/longobject.c
@@ -41,8 +41,8 @@ static PyObject *
 get_small_int(sdigit ival)
 {
     assert(IS_SMALL_INT(ival));
-    PyThreadState *tstate = _PyThreadState_GET();
-    PyObject *v = (PyObject*)tstate->interp->small_ints[ival + NSMALLNEGINTS];
+    PyInterpreterState *interp = _PyInterpreterState_GET();
+    PyObject *v = (PyObject*)interp->small_ints[ival + NSMALLNEGINTS];
     Py_INCREF(v);
     return v;
 }
diff --git a/Objects/object.c b/Objects/object.c
index 10cbd1b..0ab5de2 100644
--- a/Objects/object.c
+++ b/Objects/object.c
@@ -2029,8 +2029,8 @@ finally:
 void
 _PyTrash_deposit_object(PyObject *op)
 {
-    PyThreadState *tstate = _PyThreadState_GET();
-    struct _gc_runtime_state *gcstate = &tstate->interp->gc;
+    PyInterpreterState *interp = _PyInterpreterState_GET();
+    struct _gc_runtime_state *gcstate = &interp->gc;
 
     _PyObject_ASSERT(op, _PyObject_IS_GC(op));
     _PyObject_ASSERT(op, !_PyObject_GC_IS_TRACKED(op));
@@ -2057,8 +2057,8 @@ _PyTrash_thread_deposit_object(PyObject *op)
 void
 _PyTrash_destroy_chain(void)
 {
-    PyThreadState *tstate = _PyThreadState_GET();
-    struct _gc_runtime_state *gcstate = &tstate->interp->gc;
+    PyInterpreterState *interp = _PyInterpreterState_GET();
+    struct _gc_runtime_state *gcstate = &interp->gc;
 
     while (gcstate->trash_delete_later) {
         PyObject *op = gcstate->trash_delete_later;