针对数据库操作进行优化，启用sqlite的wal优化

src/file_store_api.py

@@ -19,6 +19,39 @@ logging.basicConfig(
 )
 logger = logging.getLogger(__name__)
 
+
+def configure_wal(cursor, cache_size=-50000, busy_timeout=5000):
+    """
+    配置SQLite WAL选项（线程安全）
+    
+    :param cursor: 数据库连接的cursor对象
+    :param cache_size: 页面缓存大小（负数为KB表示）
+    :param busy_timeout: 锁等待超时时间(毫秒)
+    """
+    logger = logging.getLogger(__name__)
+    
+    try:
+        # 1. 开启WAL模式
+        cursor.execute("PRAGMA journal_mode=WAL;")
+        mode = cursor.fetchone()[0].lower()
+        
+        # 2. 核心配置项
+        cursor.execute("PRAGMA synchronous=NORMAL;")
+        cursor.execute(f"PRAGMA busy_timeout={busy_timeout};")
+        cursor.execute(f"PRAGMA cache_size={cache_size};")
+        cursor.execute(f"PRAGMA wal_autocheckpoint=1000;")
+        
+        # 3. 其他优化配置
+        cursor.execute("PRAGMA journal_size_limit=32768;")  # 32MB WAL文件限制
+        cursor.execute("PRAGMA mmap_size=268435456;")      # 256MB内存映射
+        
+        if mode == "wal":
+            logger.debug(f"WAL配置成功: cache_size={cache_size} busy_timeout={busy_timeout}ms")
+        else:
+            logger.warning(f"WAL配置部分成功，当前模式: {mode}")
+    except sqlite3.Error as e:
+        logger.error(f"WAL配置错误: {str(e)}")
+
 class ConfigManager:
     """配置管理类，处理应用配置"""
     def __init__(self, config_path="config"):
@@ -72,12 +105,12 @@ class MainDatabase:
     def __init__(self,db_path):
         self.db_path = db_path
         self._init_db()
-    def _ini_db(self):
+    def _init_db(self):
         os.makedirs(os.path.dirname(self.db_path), exist_ok=True)
         conn = sqlite3.connect(self.db_path)
         cursor = conn.cursor()
+        configure_wal(cursor)
         cursor.execute("""
-
                        """)
 configm = ConfigManager()
 
@@ -95,6 +128,7 @@ class ChatDatabase:
         os.makedirs(os.path.dirname(self.db_path), exist_ok=True)
         conn = sqlite3.connect(self.db_path)
         cursor = conn.cursor()
+        configure_wal(cursor)
         
         # 创建消息表
         cursor.execute("""
@@ -120,7 +154,7 @@ class ChatDatabase:
             cursor.execute("""
             INSERT INTO messages (role, content, sender_id, timestamp)
             VALUES (?, ?, ?, ?)
-            """, ('system', '你是一个qq助手，名叫”the real“需要根据消息回答私信或者群聊消息，注意语言要尽可能的精炼，尽量不要超过20字,同时尽量不要换行,尽量不要让其他用户认出你是ai,同时注意,当聊天中出现[CQ:at,qq=1456128421]时,证明用户在针对你发言,你的uid是1456128421', None, timestamp))
+            """, ('system', basecontent, None, timestamp))
             logger.info(f"初始化系统消息已添加到数据库: {self.db_path}")
         
         conn.commit()
@@ -130,9 +164,8 @@ class ChatDatabase:
         """保存消息到数据库"""
         conn = sqlite3.connect(self.db_path)
         cursor = conn.cursor()
-        
+        configure_wal(cursor)
         timestamp = datetime.now().timestamp()
-        
         cursor.execute("""
         INSERT INTO messages (role, content, sender_id, timestamp)
         VALUES (?, ?, ?, ?)
@@ -145,7 +178,7 @@ class ChatDatabase:
         """从数据库加载消息"""
         conn = sqlite3.connect(self.db_path)
         cursor = conn.cursor()
-        
+        configure_wal(cursor)
         query = "SELECT role, content, sender_id, timestamp FROM messages"
         params = []