Optimize

py-client/libs/market.py

@@ -1,10 +1,13 @@
 import logging
 import secrets
+from threading import Lock
 
 from .http import get_json
 
 API_HOST = "http://139.224.247.176:13499"
 MARKET_URL, PERIOD, HTTP_TIMEOUT = "/a/market", "60m", 5.0
+_market_lock = Lock()
+_market_status = "UNKNOWN"
 
 
 def status(payload) -> str:
@@ -15,10 +18,22 @@ def status(payload) -> str:
     return result if result in {"UP", "DOWN", "NEUTRAL"} else "UNKNOWN"
 
 
-def market_allow_open(api_host: str = API_HOST) -> bool:
+def refresh_market(api_host: str = API_HOST) -> str:
+    """由后台调度线程刷新大盘状态；请求失败时缓存为 UNKNOWN。"""
+    global _market_status
     url = f"{api_host}{MARKET_URL}?period={PERIOD}&t={secrets.token_urlsafe(12)}"
-    try: result = status(get_json(url, HTTP_TIMEOUT))
+    try:
+        result = status(get_json(url, HTTP_TIMEOUT))
     except Exception as exc:
-        logging.error("获取大盘指数失败: %s %s", url, exc); return False
+        result = "UNKNOWN"
+        logging.error("获取大盘指数失败: %s %s", url, exc)
+    with _market_lock:
+        _market_status = result
     logging.info("大盘信号: url=%s status=%s", url, result)
-    return result == "UP"
+    return result
+
+
+def market_allow_open() -> bool:
+    """读取最近一次后台刷新得到的大盘缓存；未知状态时禁止开仓。"""
+    with _market_lock:
+        return _market_status == "UP"