fix: 强制设置有效 locale 修复 vnpy_ctp CTP 登录崩溃

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

app.py

@@ -1,8 +1,8 @@
 import os
 
-# vnpy_ctp C++ 扩展需要有效 locale，否则 CTP 登录后可能崩溃
-os.environ.setdefault("LANG", "C.UTF-8")
-os.environ.setdefault("LC_ALL", "C.UTF-8")
+from locale_fix import ensure_process_locale
+
+ensure_process_locale()
 
 import sqlite3
 import time

deploy.sh

@@ -29,8 +29,8 @@ need_install git git
 # vnpy_ctp 在 Linux 上需本地编译（Meson + pkg-config 查找 python3-dev）
 echo "==> 安装 vnpy_ctp 编译依赖..."
 apt-get install -y build-essential python3-dev pkg-config locales
-locale-gen en_US.UTF-8 2>/dev/null || true
-update-locale LANG=C.UTF-8 LC_ALL=C.UTF-8 2>/dev/null || true
+locale-gen en_US.UTF-8 C.UTF-8 2>/dev/null || true
+update-locale LANG=en_US.UTF-8 LC_ALL=en_US.UTF-8 2>/dev/null || true
 
 if ! command -v pm2 &>/dev/null; then
     echo "==> 安装 PM2..."

docs/DEPLOY.md

@@ -346,7 +346,7 @@ pm2 restart qihuo
 |-----------|------|
 | `pip install vnpy_ctp` 编译失败 / `Python dependency not found` | 安装 `build-essential python3-dev pkg-config` 后重试 |
 | CTP 连接超时 | 检查前置 IP、端口、SimNow 是否维护、是否在允许连接时段 |
-| 连接后立即崩溃 `locale::facet::_S_create_c_locale` | 系统 locale 未配置；`export LANG=C.UTF-8 LC_ALL=C.UTF-8` 后 `pm2 restart qihuo`，或 `git pull` 使用最新 `ecosystem.config.cjs` |
+| 连接后立即崩溃 `locale::facet::_S_create_c_locale` | 安装 locale：`apt install -y locales && locale-gen en_US.UTF-8`，`git pull` 后 `pm2 restart qihuo --update-env` |
 | 服务器 `180.168.146.187` 超时 | 换 SimNow 备用前置 `182.254.243.31:30001/30011`（见 [SIMNOW.md](./SIMNOW.md)） |
 | 已连接但下单拒单 | 检查合约代码、价格精度、是否有足够保证金 |
 

docs/SIMNOW.md

@@ -183,7 +183,7 @@ python scripts/test_simnow.py
 | 报错 **4097** / 握手失败 | `pip install -U vnpy vnpy_ctp`，`.env` 设 `SIMNOW_ENV=实盘` |
 | **不合法的登录** | 投资者代码/密码错，或未在快期改过一次密码 |
 | 快期能登、脚本不能 | 多为网络或前置地址，换 SimNow 官网其他组前置试 |
-| 连上后进程崩溃 `locale::facet::_S_create_c_locale` | 执行 `export LANG=C.UTF-8 LC_ALL=C.UTF-8`，`pm2 restart qihuo --update-env` |
+| 连上后进程崩溃 `locale::facet::_S_create_c_locale` | `apt install -y locales && locale-gen en_US.UTF-8`，`git pull` 后 `pm2 restart qihuo --update-env` |
 
 ### 提示「未安装 vnpy / vnpy_ctp」
 

ecosystem.config.cjs

@@ -11,9 +11,9 @@ module.exports = {
       max_memory_restart: "300M",
       env: {
         NODE_ENV: "production",
-        LANG: "C.UTF-8",
-        LC_ALL: "C.UTF-8",
-        LC_CTYPE: "C.UTF-8",
+        LANG: "en_US.UTF-8",
+        LC_ALL: "en_US.UTF-8",
+        LC_CTYPE: "en_US.UTF-8",
       },
       error_file: "/opt/qihuo/logs/pm2-error.log",
       out_file: "/opt/qihuo/logs/pm2-out.log",

locale_fix.py

@@ -0,0 +1,65 @@
+"""Linux 上 vnpy_ctp 连接 CTP 前须设置有效 locale（否则 C++ 层 abort）。"""
+from __future__ import annotations
+
+import locale
+import logging
+import os
+import subprocess
+
+logger = logging.getLogger(__name__)
+
+_LOCALE_DONE = False
+_LOCALE_NAME = ""
+
+
+def _list_locale_candidates() -> list[str]:
+    names: list[str] = []
+    for item in (
+        "C.UTF-8",
+        "en_US.UTF-8",
+        "en_US.utf8",
+        "POSIX",
+        "C",
+    ):
+        if item not in names:
+            names.append(item)
+    try:
+        out = subprocess.check_output(["locale", "-a"], text=True, stderr=subprocess.DEVNULL)
+        for line in out.splitlines():
+            loc = line.strip()
+            if not loc:
+                continue
+            low = loc.lower()
+            if "utf" in low and loc not in names:
+                names.insert(0, loc)
+    except (OSError, subprocess.SubprocessError):
+        pass
+    return names
+
+
+def ensure_process_locale() -> str:
+    """强制设置进程 locale，覆盖系统里无效的旧值。"""
+    global _LOCALE_DONE, _LOCALE_NAME
+    if _LOCALE_DONE:
+        return _LOCALE_NAME
+
+    last_err: locale.Error | None = None
+    for name in _list_locale_candidates():
+        try:
+            locale.setlocale(locale.LC_ALL, name)
+            os.environ["LANG"] = name
+            os.environ["LC_ALL"] = name
+            os.environ["LC_CTYPE"] = name
+            _LOCALE_DONE = True
+            _LOCALE_NAME = name
+            logger.info("进程 locale 已设置: %s", name)
+            return name
+        except locale.Error as exc:
+            last_err = exc
+            continue
+
+    raise RuntimeError(
+        "未找到可用 locale，vnpy_ctp 会在 CTP 登录后崩溃。"
+        "请执行: apt install -y locales && locale-gen en_US.UTF-8 && "
+        "update-locale LANG=en_US.UTF-8 LC_ALL=en_US.UTF-8"
+    ) from last_err

scripts/test_simnow.py

@@ -6,12 +6,13 @@ import os
 import socket
 import sys
 
-os.environ.setdefault("LANG", "C.UTF-8")
-os.environ.setdefault("LC_ALL", "C.UTF-8")
-
 BASE = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 sys.path.insert(0, BASE)
 
+from locale_fix import ensure_process_locale
+
+ensure_process_locale()
+
 from dotenv import load_dotenv
 
 load_dotenv(os.path.join(BASE, ".env"))
@@ -38,6 +39,7 @@ def main() -> int:
     env = os.getenv("SIMNOW_ENV", "实盘")
 
     print("=== SimNow 配置 ===")
+    print(f"locale          = {ensure_process_locale()}")
     print(f"SIMNOW_USER     = {user or '(未设置)'}")
     print(f"SIMNOW_PASSWORD = {'*' * 8 if os.getenv('SIMNOW_PASSWORD') else '(未设置)'}")
     print(f"SIMNOW_TD       = {td}")

vnpy_bridge.py

@@ -7,9 +7,9 @@ import threading
 import time
 from typing import Any, Optional
 
-# vnpy_ctp C++ 在部分 Linux 上缺 locale 会抛 std::runtime_error
-os.environ.setdefault("LANG", "C.UTF-8")
-os.environ.setdefault("LC_ALL", "C.UTF-8")
+from locale_fix import ensure_process_locale
+
+ensure_process_locale()
 
 from ctp_symbol import ths_to_vnpy_symbol, to_vnpy_exchange
 
@@ -89,6 +89,7 @@ class CtpBridge:
         self._init_engine()
 
     def _init_engine(self) -> None:
+        ensure_process_locale()
         try:
             from vnpy.event import EventEngine
             from vnpy.trader.engine import MainEngine
@@ -163,6 +164,7 @@ class CtpBridge:
 
             self._ee.register(EVENT_LOG, _on_log)
             try:
+                ensure_process_locale()
                 logger.info(
                     "CTP 连接 [%s] user=%s td=%s env=%s",
                     mode,