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tractor
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Experiment: only disable SIGINT handling in children

transport_hardening
Tyler Goodlet 2021-05-25 09:20:58 -04:00
parent e51ba27d01
commit b02731ca75
2 changed files with 11 additions and 7 deletions
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8
tractor/_actor.py
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@ -1,5 +1,6 @@
""" """
Actor primitives and helpers Actor primitives and helpers
""" """
from collections import defaultdict from collections import defaultdict
from functools import partial from functools import partial
@ -11,6 +12,7 @@ import uuid
import typing import typing
from typing import Dict, List, Tuple, Any, Optional, Union from typing import Dict, List, Tuple, Any, Optional, Union
from types import ModuleType from types import ModuleType
import signal
import sys import sys
import os import os
from contextlib import ExitStack from contextlib import ExitStack
@ -730,6 +732,12 @@ class Actor:
else: else:
setattr(self, attr, value) setattr(self, attr, value)
# Disable sigint handling in children if NOT running in
# debug mode; we shouldn't need it thanks to our
# cancellation machinery.
if 'debug_mode' not in rvs:
signal.signal(signal.SIGINT, signal.SIG_IGN)
return chan, accept_addr return chan, accept_addr
except OSError: # failed to connect except OSError: # failed to connect

10
tractor/_entry.py
View File

@ -3,7 +3,6 @@ Sub-process entry points.
""" """
from functools import partial from functools import partial
from typing import Tuple, Any from typing import Tuple, Any
import signal
import trio # type: ignore import trio # type: ignore
@ -15,7 +14,7 @@ log = get_logger(__name__)
def _mp_main( def _mp_main(
actor: 'Actor', # type: ignore actor: 'Actor', # type: ignore # noqa
accept_addr: Tuple[str, int], accept_addr: Tuple[str, int],
forkserver_info: Tuple[Any, Any, Any, Any, Any], forkserver_info: Tuple[Any, Any, Any, Any, Any],
start_method: str, start_method: str,
@ -54,16 +53,13 @@ def _mp_main(
def _trio_main( def _trio_main(
actor: 'Actor', # type: ignore actor: 'Actor', # type: ignore # noqa
*, *,
parent_addr: Tuple[str, int] = None, parent_addr: Tuple[str, int] = None,
) -> None: ) -> None:
"""Entry point for a `trio_run_in_process` subactor. """Entry point for a `trio_run_in_process` subactor.
"""
# Disable sigint handling in children;
# we don't need it thanks to our cancellation machinery.
signal.signal(signal.SIGINT, signal.SIG_IGN)
"""
log.info(f"Started new trio process for {actor.uid}") log.info(f"Started new trio process for {actor.uid}")
if actor.loglevel is not None: if actor.loglevel is not None: