bpo-43879: Add native_thread_id field to PyThreadState (GH-25458)

1 files changed, 6 insertions, 0 deletions

diff --git a/Include/cpython/pystate.h b/Include/cpython/pystate.h
index 63ba600..1049eda 100644
--- a/Include/cpython/pystate.h
+++ b/Include/cpython/pystate.h
@@ -113,6 +113,12 @@ struct _ts {
     PyObject *async_exc; /* Asynchronous exception to raise */
     unsigned long thread_id; /* Thread id where this tstate was created */
 
+    /* Native thread id where this tstate was created. This will be 0 except on
+     * those platforms that have the notion of native thread id, for which the
+     * macro PY_HAVE_THREAD_NATIVE_ID is then defined.
+     */
+    unsigned long native_thread_id;
+
     int trash_delete_nesting;
     PyObject *trash_delete_later;