stop the world in all tasks

Author: kumaraditya303

Include/internal/pycore_pystate.h

@@ -182,8 +182,8 @@ extern void _PyEval_StartTheWorldAll(_PyRuntimeState *runtime);
 // Perform a stop-the-world pause for threads in the specified interpreter.
 //
 // NOTE: This is a no-op outside of Py_GIL_DISABLED builds.
-extern void _PyEval_StopTheWorld(PyInterpreterState *interp);
-extern void _PyEval_StartTheWorld(PyInterpreterState *interp);
+extern PyAPI_FUNC(void) _PyEval_StopTheWorld(PyInterpreterState *interp);
+extern PyAPI_FUNC(void) _PyEval_StartTheWorld(PyInterpreterState *interp);
 
 
 static inline void

Modules/_asynciomodule.c

@@ -3767,9 +3767,11 @@ _asyncio_all_tasks_impl(PyObject *module, PyObject *loop)
         return NULL;
     }
     int err = 0;
-    ASYNCIO_STATE_LOCK(state);
-    struct llist_node *node;
 
+    PyInterpreterState *interp = PyInterpreterState_Get();
+    _PyEval_StopTheWorld(interp);
+
+    struct llist_node *node;
     llist_for_each_safe(node, &state->asyncio_tasks_head) {
         TaskObj *task = llist_data(node, TaskObj, task_node);
         if (PyList_Append(tasks, (PyObject *)task) < 0) {
@@ -3779,7 +3781,8 @@ _asyncio_all_tasks_impl(PyObject *module, PyObject *loop)
             break;
         }
     }
-    ASYNCIO_STATE_UNLOCK(state);
+
+    _PyEval_StartTheWorld(interp);
     if (err) {
         return NULL;
     }