Add function for listing native threads to eventlet backdoor

The eventlet backdoor has a 'pgt' function for listing green
threads and their stack traces. This adds a new 'pnt' function
for doing the same with native threads.

Change-Id: If6dcfd8dde61c96adfc6e052e5ec7db82914cd55
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/openstack/common/eventlet_backdoor.py b/openstack/common/eventlet_backdoor.py
index 61ceded..8b81ebf 100644
--- a/openstack/common/eventlet_backdoor.py
+++ b/openstack/common/eventlet_backdoor.py
@@ -51,12 +51,20 @@ def _print_greenthreads():
         print
 
 
+def _print_nativethreads():
+    for threadId, stack in sys._current_frames().items():
+        print threadId
+        traceback.print_stack(stack)
+        print
+
+
 def initialize_if_enabled():
     backdoor_locals = {
         'exit': _dont_use_this,      # So we don't exit the entire process
         'quit': _dont_use_this,      # So we don't exit the entire process
         'fo': _find_objects,
         'pgt': _print_greenthreads,
+        'pnt': _print_nativethreads,
     }
 
     if CONF.backdoor_port is None: