mirror of
https://github.com/LiteyukiStudio/LiteyukiBot.git
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298 lines
8.4 KiB
Python
298 lines
8.4 KiB
Python
# -*- coding: utf-8 -*-
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"""
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Copyright (C) 2020-2024 LiteyukiStudio. All Rights Reserved
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@Time : 2024/7/27 上午11:12
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@Author : snowykami
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@Email : snowykami@outlook.com
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@File : manager.py
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@Software: PyCharm
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"""
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import asyncio
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import multiprocessing
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import threading
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from multiprocessing import Process
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from typing import Any, Callable, TYPE_CHECKING, TypeAlias
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from croterline.context import Context
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from croterline.process import SubProcess, ProcessFuncType
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from liteyuki.log import logger
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from liteyuki.utils import IS_MAIN_PROCESS
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if TYPE_CHECKING:
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from liteyuki.bot.lifespan import Lifespan
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from liteyuki.comm.storage import KeyValueStore
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from liteyuki.comm import Channel
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if IS_MAIN_PROCESS:
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from liteyuki.comm.channel import get_channel, publish_channel, get_channels
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from liteyuki.comm.storage import shared_memory
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from liteyuki.comm.channel import (
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channel_deliver_active_channel,
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channel_deliver_passive_channel,
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)
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else:
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from liteyuki.comm import channel
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from liteyuki.comm import storage
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TARGET_FUNC: TypeAlias = Callable[..., Any]
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TIMEOUT = 10
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__all__ = ["ProcessManager", "sub_process_manager"]
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multiprocessing.set_start_method("spawn", force=True)
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class ChannelDeliver:
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def __init__(
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self,
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active: Channel[Any],
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passive: Channel[Any],
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channel_deliver_active: Channel[Channel[Any]],
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channel_deliver_passive: Channel[tuple[str, dict]],
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publish: Channel[tuple[str, Any]],
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):
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self.active = active
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self.passive = passive
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self.channel_deliver_active = channel_deliver_active
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self.channel_deliver_passive = channel_deliver_passive
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self.publish = publish
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# 函数处理一些跨进程通道的
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def _delivery_channel_wrapper(
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func: TARGET_FUNC, cd: ChannelDeliver, sm: "KeyValueStore", *args, **kwargs
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):
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"""
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子进程入口函数
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处理一些操作
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"""
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# 给子进程设置通道
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if IS_MAIN_PROCESS:
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raise RuntimeError("Function should only be called in a sub process.")
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channel.active_channel = cd.active # 子进程主动通道
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channel.passive_channel = cd.passive # 子进程被动通道
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channel.channel_deliver_active_channel = (
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cd.channel_deliver_active
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) # 子进程通道传递主动通道
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channel.channel_deliver_passive_channel = (
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cd.channel_deliver_passive
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) # 子进程通道传递被动通道
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channel.publish_channel = cd.publish # 子进程发布通道
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# 给子进程创建共享内存实例
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storage.shared_memory = sm
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func(*args, **kwargs)
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class ProcessManager:
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"""
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进程管理器
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"""
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def __init__(self, lifespan: "Lifespan"):
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self.lifespan = lifespan
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self.targets: dict[str, tuple[Callable, tuple, dict]] = {}
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self.processes: dict[str, Process] = {}
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def _run_process(self, name: str):
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"""
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开启后自动监控进程，并添加到进程字典中，会阻塞，请创建task
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Args:
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name:
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Returns:
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"""
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if name not in self.targets:
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raise KeyError(f"Process {name} not found.")
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chan_active = get_channel(f"{name}-active")
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def _start_process():
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process = Process(
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target=self.targets[name][0],
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args=self.targets[name][1],
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kwargs=self.targets[name][2],
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daemon=True,
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)
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self.processes[name] = process
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process.start()
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# 启动进程并监听信号
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_start_process()
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while True:
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data = chan_active.receive()
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if data == 0:
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# 停止
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logger.info(f"Stopping process {name}")
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self.terminate(name)
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break
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elif data == 1:
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# 重启
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logger.info(f"Restarting process {name}")
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self.terminate(name)
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_start_process()
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continue
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else:
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logger.warning("Unknown data received, ignored.")
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def start_all(self):
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"""
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对外启动方法，启动所有进程，创建asyncio task
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"""
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# [asyncio.create_task(self._run_process(name)) for name in self.targets]
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for name in self.targets:
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logger.debug(f"Starting process {name}")
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threading.Thread(
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target=self._run_process, args=(name,), daemon=True
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).start()
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def add_target(self, name: str, target: TARGET_FUNC, args: tuple = (), kwargs=None):
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"""
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添加进程
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Args:
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name: 进程名，用于获取和唯一标识
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target: 进程函数
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args: 进程函数参数
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kwargs: 进程函数关键字参数，通常会默认传入chan_active和chan_passive
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"""
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if kwargs is None:
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kwargs = {}
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chan_active: Channel = Channel(name=f"{name}-active")
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chan_passive: Channel = Channel(name=f"{name}-passive")
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channel_deliver = ChannelDeliver(
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active=chan_active,
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passive=chan_passive,
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channel_deliver_active=channel_deliver_active_channel,
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channel_deliver_passive=channel_deliver_passive_channel,
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publish=publish_channel,
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)
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self.targets[name] = (
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_delivery_channel_wrapper,
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(target, channel_deliver, shared_memory, *args),
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kwargs,
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)
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# 主进程通道
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def join_all(self):
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for name, process in self.targets:
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process.join()
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def terminate(self, name: str):
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"""
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终止进程并从进程字典中删除
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Args:
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name:
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Returns:
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"""
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if name not in self.processes:
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logger.warning(f"Process {name} not found.")
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return
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process = self.processes[name]
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process.terminate()
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process.join(TIMEOUT)
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if process.is_alive():
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process.kill()
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logger.success(f"Process {name} terminated.")
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def terminate_all(self):
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for name in self.targets:
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self.terminate(name)
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def is_process_alive(self, name: str) -> bool:
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"""
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检查进程是否存活
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Args:
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name:
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Returns:
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"""
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if name not in self.targets:
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logger.warning(f"Process {name} not found.")
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return self.processes[name].is_alive()
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# new version
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class _SubProcessManager:
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"""
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子进程管理器
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若要子进程间通信，请先在子进程A中发送通信事件给主进程，包含当前进程信息及上下文信息，主进程再将信息发送给子进程B，子进程B再根据信息进行操作
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"""
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def __init__(self):
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self.processes: dict[str, SubProcess] = {}
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def add(self, name: str, func: ProcessFuncType, *args, **kwargs):
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"""
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添加子进程
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Args:
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func: 子进程函数
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name: 子进程名称
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args: 子进程函数参数
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kwargs: 子进程函数关键字参数
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Returns:
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"""
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self.processes[name] = SubProcess(name, func, *args, **kwargs)
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def start(self, name: str):
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"""
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启动指定子进程
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Args:
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name: 子进程名称
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Returns:
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"""
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if name not in self.processes:
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raise KeyError(f"Process {name} not found.")
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self.processes[name].start()
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def start_all(self):
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"""
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启动所有子进程
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"""
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for name, process in self.processes.items():
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process.start()
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logger.debug(f"Starting process {name}")
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def terminate(self, name: str):
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"""
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终止指定子进程
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Args:
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name: 子进程名称
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Returns:
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"""
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if name not in self.processes:
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raise KeyError(f"Process {name} not found.")
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self.processes[name].terminate()
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def terminate_all(self):
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"""
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终止所有子进程
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"""
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for name, process in self.processes.items():
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process.terminate()
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logger.debug(f"Terminating process {name}")
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def get_process(self, name: str) -> SubProcess | None:
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"""
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获取指定子进程
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Args:
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name: 子进程名称
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Returns:
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"""
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return self.processes.get(name, None)
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sub_process_manager = _SubProcessManager()
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