mirror of
https://github.com/aiogram/aiogram.git
synced 2026-04-08 16:37:47 +00:00
82 lines
2.5 KiB
Python
82 lines
2.5 KiB
Python
from asyncio import Lock
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from collections import defaultdict
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from contextlib import asynccontextmanager
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from dataclasses import dataclass, field
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from typing import Any, AsyncGenerator, DefaultDict, Dict, Hashable, Optional
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from aiogram import Bot
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from aiogram.fsm.state import State
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from aiogram.fsm.storage.base import BaseEventIsolation, BaseStorage, StateType, StorageKey
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@dataclass
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class MemoryStorageRecord:
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data: Dict[str, Any] = field(default_factory=dict)
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state: Optional[str] = None
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class MemoryStorage(BaseStorage):
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"""
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Default FSM storage, stores all data in :class:`dict` and loss everything on shutdown
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.. warning::
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Is not recommended using in production in due to you will lose all data
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when your bot restarts
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"""
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def __init__(self) -> None:
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self.storage: DefaultDict[StorageKey, MemoryStorageRecord] = defaultdict(
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MemoryStorageRecord
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)
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async def close(self) -> None:
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pass
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async def set_state(self, bot: Bot, key: StorageKey, state: StateType = None) -> None:
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self.storage[key].state = state.state if isinstance(state, State) else state
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async def get_state(self, bot: Bot, key: StorageKey) -> Optional[str]:
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return self.storage[key].state
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async def set_data(self, bot: Bot, key: StorageKey, data: Dict[str, Any]) -> None:
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self.storage[key].data = data.copy()
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async def get_data(self, bot: Bot, key: StorageKey) -> Dict[str, Any]:
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return self.storage[key].data.copy()
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class DisabledEventIsolation(BaseEventIsolation):
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def __init__(self) -> None:
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self._locks: DefaultDict[Hashable, Lock]
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@asynccontextmanager
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async def lock(self, bot: Bot, key: StorageKey) -> AsyncGenerator[None, None]:
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yield
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async def close(self) -> None:
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pass
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class SimpleEventIsolation(BaseEventIsolation):
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def __init__(self) -> None:
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# TODO: Unused locks cleaner is needed
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self._locks: DefaultDict[Hashable, Lock] = defaultdict(Lock)
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@asynccontextmanager
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async def lock(self, bot: Bot, key: StorageKey) -> AsyncGenerator[None, None]:
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lock = self._locks[key]
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async with lock:
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yield
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self._cleanup(key)
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async def close(self) -> None:
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self._locks.clear()
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def _cleanup(self, key: Hashable):
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if self._locks[key]._waiters is None:
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del self._locks[key]
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elif len(self._locks[key]._waiters) == 0:
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del self._locks[key]
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