mirror of
https://github.com/comfyanonymous/ComfyUI.git
synced 2025-08-02 23:14:49 +08:00
98 lines
2.8 KiB
Python
98 lines
2.8 KiB
Python
import logging
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import sqlite3
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from contextlib import contextmanager
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from queue import Queue, Empty, Full
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import threading
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from app.database_updater import DatabaseUpdater
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import folder_paths
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from comfy.cli_args import args
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class Database:
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def __init__(self, database_path=None, pool_size=1):
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if database_path is None:
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database_path = "file::memory:?cache=shared"
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self.database_path = database_path
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self.pool_size = pool_size
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# Store connections in a pool, default to 1 as normal usage is going to be from a single thread at a time
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self.connection_pool: Queue = Queue(maxsize=pool_size)
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self._db_lock = threading.Lock()
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self._initialized = False
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self._closing = False
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def _setup(self):
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if self._initialized:
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return
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with self._db_lock:
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if not self._initialized:
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self._make_db()
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self._initialized = True
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def _create_connection(self):
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# TODO: Catch error for sqlite lib missing on linux
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logging.info(f"Creating connection to {self.database_path}")
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conn = sqlite3.connect(self.database_path, check_same_thread=False)
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conn.execute("PRAGMA foreign_keys = ON")
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return conn
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def _make_db(self):
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with self._get_connection() as con:
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updater = DatabaseUpdater(con)
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updater.update()
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@contextmanager
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def _get_connection(self):
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if self._closing:
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raise Exception("Database is shutting down")
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try:
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# Try to get connection from pool
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connection = self.connection_pool.get_nowait()
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except Empty:
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# Create new connection if pool is empty
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connection = self._create_connection()
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try:
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yield connection
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finally:
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try:
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# Try to add to pool if it's empty
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self.connection_pool.put_nowait(connection)
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except Full:
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# Pool is full, close the connection
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connection.close()
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@contextmanager
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def get_connection(self):
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# Setup the database if it's not already initialized
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self._setup()
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with self._get_connection() as connection:
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yield connection
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def close(self):
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if self._closing:
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return
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# Drain and close all connections in the pool
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self._closing = True
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while True:
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try:
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conn = self.connection_pool.get_nowait()
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conn.close()
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except Empty:
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break
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def __del__(self):
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try:
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self.close()
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except:
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pass
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# Create a global instance
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db_path = None
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if not args.memory_database:
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db_path = folder_paths.get_user_directory() + "/comfyui.db"
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db = Database(db_path)
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