Fix server hang: stop CTP reconnect storm and throttle live account polling.

Co-authored-by: Cursor <cursoragent@cursor.com>

modules/ctp/ctp_premarket_connect.py

@@ -18,7 +18,7 @@ from modules.market.market_sessions import (
     is_trading_session,
     should_keep_ctp_connected,
 )
-from modules.ctp.vnpy_bridge import ctp_start_connect, ctp_status, ctp_session_needs_reconnect
+from modules.ctp.vnpy_bridge import ctp_start_connect, ctp_status, ctp_session_needs_reconnect, get_bridge
 
 logger = logging.getLogger(__name__)
 
@@ -114,6 +114,7 @@ def start_ctp_premarket_connect_worker(
                             or is_trading_session()
                         )
                         and ctp_session_needs_reconnect(mode)
+                        and not get_bridge().connect_in_progress()
                     ):
                         info = ctp_start_connect(mode, force=True, scheduled=True)
                         if info.get("started") or info.get("connecting"):

modules/ctp/vnpy_bridge.py

@@ -2904,27 +2904,27 @@ def ctp_start_connect(mode: str, *, force: bool = False, scheduled: bool = False
 
 
 def ctp_session_needs_reconnect(mode: str) -> bool:
-    """连接看似在线但不可交易、无资金回报或会话过旧时需强制重连。"""
+    """连接看似在线但不可交易或会话过旧时需强制重连（连接进行中不重复发起）。"""
     if _use_ctp_worker_client():
         st = ctp_ipc_client.status(mode)
+        if st.get("connecting"):
+            return False
         if not st.get("connected"):
             return True
         if not st.get("td_logged_in"):
             return True
         return False
     b = get_bridge()
+    if b.connect_in_progress():
+        return False
     if b.connected_mode != mode:
         return True
+    since_connect = time.time() - float(getattr(b, "_last_connect_ok_ts", 0) or 0)
+    if since_connect < 120:
+        return False
     if not b._td_logged_in():
         return True
-    age = time.time() - float(getattr(b, "_last_connect_ok_ts", 0) or 0)
-    if age > 3 * 3600:
-        return True
-    try:
-        acc = b.get_account()
-        if float(acc.get("balance") or 0) <= 0:
-            return True
-    except Exception:
+    if since_connect > 3 * 3600:
         return True
     return False