mirror of
https://github.com/nonebot/nonebot2.git
synced 2024-12-01 01:25:07 +08:00
146 lines
4.0 KiB
Python
146 lines
4.0 KiB
Python
"""None 驱动适配
|
|
|
|
:::tip 提示
|
|
本驱动不支持任何服务器或客户端连接
|
|
:::
|
|
|
|
FrontMatter:
|
|
mdx:
|
|
format: md
|
|
sidebar_position: 6
|
|
description: nonebot.drivers.none 模块
|
|
"""
|
|
|
|
import signal
|
|
import asyncio
|
|
import threading
|
|
from typing_extensions import override
|
|
|
|
from nonebot.log import logger
|
|
from nonebot.consts import WINDOWS
|
|
from nonebot.config import Env, Config
|
|
from nonebot.drivers import Driver as BaseDriver
|
|
|
|
HANDLED_SIGNALS = (
|
|
signal.SIGINT, # Unix signal 2. Sent by Ctrl+C.
|
|
signal.SIGTERM, # Unix signal 15. Sent by `kill <pid>`.
|
|
)
|
|
if WINDOWS: # pragma: py-win32
|
|
HANDLED_SIGNALS += (signal.SIGBREAK,) # Windows signal 21. Sent by Ctrl+Break.
|
|
|
|
|
|
class Driver(BaseDriver):
|
|
"""None 驱动框架"""
|
|
|
|
def __init__(self, env: Env, config: Config):
|
|
super().__init__(env, config)
|
|
|
|
self.should_exit: asyncio.Event = asyncio.Event()
|
|
self.force_exit: bool = False
|
|
|
|
@property
|
|
@override
|
|
def type(self) -> str:
|
|
"""驱动名称: `none`"""
|
|
return "none"
|
|
|
|
@property
|
|
@override
|
|
def logger(self):
|
|
"""none driver 使用的 logger"""
|
|
return logger
|
|
|
|
@override
|
|
def run(self, *args, **kwargs):
|
|
"""启动 none driver"""
|
|
super().run(*args, **kwargs)
|
|
loop = asyncio.get_event_loop()
|
|
loop.run_until_complete(self._serve())
|
|
|
|
async def _serve(self):
|
|
self._install_signal_handlers()
|
|
await self._startup()
|
|
if self.should_exit.is_set():
|
|
return
|
|
await self._main_loop()
|
|
await self._shutdown()
|
|
|
|
async def _startup(self):
|
|
try:
|
|
await self._lifespan.startup()
|
|
except Exception as e:
|
|
logger.opt(colors=True, exception=e).error(
|
|
"<r><bg #f8bbd0>Application startup failed. "
|
|
"Exiting.</bg #f8bbd0></r>"
|
|
)
|
|
self.should_exit.set()
|
|
return
|
|
|
|
logger.info("Application startup completed.")
|
|
|
|
async def _main_loop(self):
|
|
await self.should_exit.wait()
|
|
|
|
async def _shutdown(self):
|
|
logger.info("Shutting down")
|
|
|
|
logger.info("Waiting for application shutdown.")
|
|
|
|
try:
|
|
await self._lifespan.shutdown()
|
|
except Exception as e:
|
|
logger.opt(colors=True, exception=e).error(
|
|
"<r><bg #f8bbd0>Error when running shutdown function. "
|
|
"Ignored!</bg #f8bbd0></r>"
|
|
)
|
|
|
|
for task in asyncio.all_tasks():
|
|
if task is not asyncio.current_task() and not task.done():
|
|
task.cancel()
|
|
await asyncio.sleep(0.1)
|
|
|
|
tasks = [t for t in asyncio.all_tasks() if t is not asyncio.current_task()]
|
|
if tasks and not self.force_exit:
|
|
logger.info("Waiting for tasks to finish. (CTRL+C to force quit)")
|
|
while tasks and not self.force_exit:
|
|
await asyncio.sleep(0.1)
|
|
tasks = [t for t in asyncio.all_tasks() if t is not asyncio.current_task()]
|
|
|
|
for task in tasks:
|
|
task.cancel()
|
|
|
|
await asyncio.gather(*tasks, return_exceptions=True)
|
|
|
|
logger.info("Application shutdown complete.")
|
|
loop = asyncio.get_event_loop()
|
|
loop.stop()
|
|
|
|
def _install_signal_handlers(self) -> None:
|
|
if threading.current_thread() is not threading.main_thread():
|
|
# Signals can only be listened to from the main thread.
|
|
return
|
|
|
|
loop = asyncio.get_event_loop()
|
|
|
|
try:
|
|
for sig in HANDLED_SIGNALS:
|
|
loop.add_signal_handler(sig, self._handle_exit, sig, None)
|
|
except NotImplementedError:
|
|
# Windows
|
|
for sig in HANDLED_SIGNALS:
|
|
signal.signal(sig, self._handle_exit)
|
|
|
|
def _handle_exit(self, sig, frame):
|
|
self.exit(force=self.should_exit.is_set())
|
|
|
|
def exit(self, force: bool = False):
|
|
"""退出 none driver
|
|
|
|
参数:
|
|
force: 强制退出
|
|
"""
|
|
if not self.should_exit.is_set():
|
|
self.should_exit.set()
|
|
if force:
|
|
self.force_exit = True
|