From bff4bfeae1f428a815dc9a57b87f913217188fdd Mon Sep 17 00:00:00 2001
From: Kumar Aditya <kumaraditya@python.org>
Date: Mon, 10 Feb 2025 15:04:33 +0530
Subject: [PATCH] gh-128002: add fast path for native tasks in
 `asyncio.all_tasks` (#129943)

---
 Modules/_asynciomodule.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Modules/_asynciomodule.c b/Modules/_asynciomodule.c
index 4070076d756f..449c8a949926 100644
--- a/Modules/_asynciomodule.c
+++ b/Modules/_asynciomodule.c
@@ -3991,6 +3991,19 @@ static inline int
 add_one_task(asyncio_state *state, PyObject *tasks, PyObject *task, PyObject *loop)
 {
     assert(PySet_CheckExact(tasks));
+    if (Task_CheckExact(state, task)) {
+        int pending = 0;
+        Py_BEGIN_CRITICAL_SECTION(task);
+        pending = ((TaskObj *)task)->task_state == STATE_PENDING && ((TaskObj *)task)->task_loop == loop;
+        Py_END_CRITICAL_SECTION();
+        if (pending) {
+            if (PySet_Add(tasks, task) < 0) {
+                return -1;
+            }
+        }
+        return 0;
+    }
+
     PyObject *done = PyObject_CallMethodNoArgs(task, &_Py_ID(done));
     if (done == NULL) {
         return -1;
-- 
2.47.3