153 lines
3.6 KiB
Python
153 lines
3.6 KiB
Python
# tractor: structured concurrent "actors".
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# Copyright 2018-eternity Tyler Goodlet.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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"""
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Sub-process entry points.
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"""
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from __future__ import annotations
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from functools import partial
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from typing import (
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Any,
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TYPE_CHECKING,
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)
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import trio # type: ignore
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from .log import (
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get_console_log,
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get_logger,
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)
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from . import _state
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from .to_asyncio import run_as_asyncio_guest
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from ._runtime import (
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async_main,
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Actor,
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)
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if TYPE_CHECKING:
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from ._spawn import SpawnMethodKey
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log = get_logger(__name__)
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def _mp_main(
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actor: Actor,
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accept_addrs: list[tuple[str, int]],
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forkserver_info: tuple[Any, Any, Any, Any, Any],
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start_method: SpawnMethodKey,
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parent_addr: tuple[str, int] | None = None,
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infect_asyncio: bool = False,
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) -> None:
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'''
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The routine called *after fork* which invokes a fresh ``trio.run``
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'''
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actor._forkserver_info = forkserver_info
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from ._spawn import try_set_start_method
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spawn_ctx = try_set_start_method(start_method)
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if actor.loglevel is not None:
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log.info(
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f"Setting loglevel for {actor.uid} to {actor.loglevel}")
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get_console_log(actor.loglevel)
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assert spawn_ctx
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log.info(
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f"Started new {spawn_ctx.current_process()} for {actor.uid}")
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_state._current_actor = actor
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log.debug(f"parent_addr is {parent_addr}")
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trio_main = partial(
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async_main,
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actor=actor,
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accept_addrs=accept_addrs,
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parent_addr=parent_addr
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)
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try:
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if infect_asyncio:
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actor._infected_aio = True
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run_as_asyncio_guest(trio_main)
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else:
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trio.run(trio_main)
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except KeyboardInterrupt:
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pass # handle it the same way trio does?
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finally:
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log.info(f"Actor {actor.uid} terminated")
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def _trio_main(
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actor: Actor,
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*,
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parent_addr: tuple[str, int] | None = None,
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infect_asyncio: bool = False,
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) -> None:
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'''
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Entry point for a `trio_run_in_process` subactor.
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'''
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__tracebackhide__: bool = True
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_state._current_actor = actor
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trio_main = partial(
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async_main,
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actor,
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parent_addr=parent_addr
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)
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if actor.loglevel is not None:
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get_console_log(actor.loglevel)
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import os
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actor_info: str = (
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f'|_{actor}\n'
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f' uid: {actor.uid}\n'
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f' pid: {os.getpid()}\n'
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f' parent_addr: {parent_addr}\n'
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f' loglevel: {actor.loglevel}\n'
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)
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log.info(
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'Started new trio process:\n'
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+
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actor_info
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)
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try:
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if infect_asyncio:
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actor._infected_aio = True
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run_as_asyncio_guest(trio_main)
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else:
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trio.run(trio_main)
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except KeyboardInterrupt:
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log.cancel(
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'Actor received KBI\n'
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+
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actor_info
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)
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finally:
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log.info(
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'Actor terminated\n'
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+
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actor_info
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)
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