From a573c3c9a837ccfc2ec88d77cfa06585e385f1e0 Mon Sep 17 00:00:00 2001
From: Tyler Goodlet <jgbt@protonmail.com>
Date: Wed, 7 May 2025 10:41:59 -0400
Subject: [PATCH] Unset debug-mode on root actor exit

Discovered this bug while testing `modden`'s daemon under various
cancelled-while-booting race conditions where sequential tests would
fail a lingering `assert 0` inside `.to_asyncio.run_as_asyncio_guest()`
to (oddly) catch redundant greenback-re-inits..

XD

Needs a test likely ;P
---
 tractor/_root.py | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/tractor/_root.py b/tractor/_root.py
index 81ff884b..d6d5d697 100644
--- a/tractor/_root.py
+++ b/tractor/_root.py
@@ -281,7 +281,8 @@ async def open_root_actor(
 
         if (
             debug_mode
-            and _spawn._spawn_method == 'trio'
+            and
+            _spawn._spawn_method == 'trio'
         ):
             _state._runtime_vars['_debug_mode'] = True
 
@@ -517,8 +518,17 @@ async def open_root_actor(
                     )
                     await actor.cancel(None)  # self cancel
         finally:
+            # revert all process-global runtime state
+            if (
+                debug_mode
+                and
+                _spawn._spawn_method == 'trio'
+            ):
+                _state._runtime_vars['_debug_mode'] = False
+
             _state._current_actor = None
             _state._last_actor_terminated = actor
+
             logger.runtime(
                 f'Root actor terminated\n'
                 f')>\n'