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Move debugger wait inside OCA nursery

debugger_hardening
Tyler Goodlet 2021-06-10 14:02:12 -04:00
parent e03d3c9fa8
commit 13077cbdf2
1 changed files with 26 additions and 20 deletions
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38
tractor/_trionics.py
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@ -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).
@ -368,26 +388,12 @@ async def open_nursery(
async with open_root_actor(**kwargs) as actor:
assert actor is current_actor()
try:
# 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
else: # sub-nursery case
async with _open_and_supervise_one_cancels_all_nursery(