64 lines
3.1 KiB
Python
64 lines
3.1 KiB
Python
# ╔══════════════════════════════════════════════════════════════════╗
|
|
# ║ ║
|
|
# ║ ░█▀▀░█▀█░█▀▄░█▀▀░█░█ ░█▀▄░█▀▀░█░█░█▀▀ ║
|
|
# ║ ░█░░░█░█░█░█░█▀▀░▄▀▄ ░█░█░█▀▀░▀▄▀░▀▀█ ║
|
|
# ║ ░▀▀▀░▀▀▀░▀▀░░▀▀▀░▀░▀ ░▀▀░░▀▀▀░░▀░░▀▀▀ ║
|
|
# ║ ║
|
|
# ║ © 2026 CodeX Devs — All Rights Reserved ║
|
|
# ║ ║
|
|
# ║ discord ── https://discord.gg/codexdev ║
|
|
# ║ youtube ── https://youtube.com/@CodeXDevs ║
|
|
# ║ github ── https://github.com/RayExo ║
|
|
# ║ ║
|
|
# ╚══════════════════════════════════════════════════════════════════╝
|
|
|
|
import aiosqlite
|
|
import asyncio
|
|
import random
|
|
from typing import Optional
|
|
|
|
class Database:
|
|
_instance: Optional['Database'] = None
|
|
_lock: asyncio.Lock
|
|
db_path: str
|
|
db: Optional[aiosqlite.Connection]
|
|
|
|
def __new__(cls, db_path='db/anti.db'):
|
|
if cls._instance is None:
|
|
cls._instance = super().__new__(cls)
|
|
cls._instance.db_path = db_path
|
|
cls._instance.db = None
|
|
cls._instance._lock = asyncio.Lock()
|
|
return cls._instance
|
|
|
|
async def connect(self, timeout=30):
|
|
async with self._lock:
|
|
if self.db is None:
|
|
self.db = await aiosqlite.connect(self.db_path, timeout=timeout)
|
|
await self.db.execute('PRAGMA journal_mode=WAL;')
|
|
await self.db.commit()
|
|
return self.db
|
|
|
|
async def ensure_connection(self):
|
|
if self.db is None or not self.db.is_open:
|
|
await self.connect()
|
|
return self.db
|
|
|
|
async def execute_with_retries(self, func, retries=5, delay=1):
|
|
for attempt in range(retries):
|
|
try:
|
|
return await func()
|
|
except aiosqlite.OperationalError as e:
|
|
if 'database is locked' in str(e).lower():
|
|
sleep_time = delay * (2 ** attempt) + random.uniform(0, 1)
|
|
print(f"Database is locked. Retryng in {sleep_time:.2f} seconds.....")
|
|
await asyncio.sleep(sleep_time)
|
|
else:
|
|
raise
|
|
raise Exception("Max retrys.")
|
|
|
|
async def close(self):
|
|
async with self._lock:
|
|
if self.db is not None:
|
|
await self.db.close()
|
|
self.db = None |