From 498cd7e3a2a25913e42700a356a4946e38da26ad Mon Sep 17 00:00:00 2001
From: Tyler Goodlet <jgbt@protonmail.com>
Date: Thu, 10 Jun 2021 14:02:12 -0400
Subject: [PATCH] Move debugger wait inside OCA nursery

---
 tractor/_trionics.py | 46 +++++++++++++++++++++++++-------------------
 1 file changed, 26 insertions(+), 20 deletions(-)

diff --git a/tractor/_trionics.py b/tractor/_trionics.py
index 2e785f0..50cfa30 100644
--- a/tractor/_trionics.py
+++ b/tractor/_trionics.py
@@ -12,7 +12,7 @@ import trio
 from async_generator import asynccontextmanager
 
 from . import _debug
-from ._state import current_actor, is_main_process
+from ._state import current_actor, is_main_process, is_root_process
 from .log import get_logger, get_loglevel
 from ._actor import Actor
 from ._portal import Portal
@@ -254,6 +254,26 @@ async def _open_and_supervise_one_cancels_all_nursery(
                         "to complete"
                     )
                 except BaseException as err:
+
+                    if is_root_process() and (
+                        type(err) in {
+                            Exception, trio.MultiError, trio.Cancelled
+                        }
+                    ):
+                        # if we error in the root but the debugger is
+                        # engaged we don't want to prematurely kill (and
+                        # thus clobber access to) the local tty streams.
+                        # instead try to wait for pdb to be released before
+                        # tearing down.
+                        debug_complete = _debug._pdb_complete
+                        if debug_complete and not debug_complete.is_set():
+                            log.warning(
+                                "Root has errored but pdb is active..waiting "
+                                "on debug lock")
+                            await _debug._pdb_complete.wait()
+
+                        # raise
+
                     # if the caller's scope errored then we activate our
                     # one-cancels-all supervisor strategy (don't
                     # worry more are coming).
@@ -368,25 +388,11 @@ async def open_nursery(
             async with open_root_actor(**kwargs) as actor:
                 assert actor is current_actor()
 
-                try:
-                    async with _open_and_supervise_one_cancels_all_nursery(
-                        actor
-                    ) as anursery:
-                        yield anursery
-
-                except (Exception, trio.MultiError, trio.Cancelled):
-                    # if we error in the root but the debugger is
-                    # engaged we don't want to prematurely kill (and
-                    # thus clobber access to) the local tty streams.
-                    # instead try to wait for pdb to be released before
-                    # tearing down.
-                    if not _debug._pdb_complete.is_set():
-                        log.warning(
-                            "Root has errored but pdb is active..waiting "
-                            "on debug lock")
-                        await _debug._pdb_complete.wait()
-
-                    raise
+                # try:
+                async with _open_and_supervise_one_cancels_all_nursery(
+                    actor
+                ) as anursery:
+                    yield anursery
 
         else:  # sub-nursery case