v0.1.0: CRM/ERP 系统内测版本 - 安全加固完成

- Docker bridge 网络隔离（8000 端口封死） - Gunicorn 4 Worker 多进程 - Alembic 数据库迁移基线 - 日志轮转 20m×3 - JWT 密钥 + DB 密码 + CORS 收紧 - 3-2-1 备份链路（NAS + R740-B 冷备） - 连接池 pool_pre_ping + pool_recycle=3600
2026-03-16 07:31:37 +00:00
commit 423baff73b
2578 changed files with 824643 additions and 0 deletions
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+from __future__ import annotations
+
+import time
+
+
+__all__ = ["Deadline"]
+
+
+class Deadline:
+    """
+    Manage timeouts across multiple steps.
+
+    Args:
+        timeout: Time available in seconds or :obj:`None` if there is no limit.
+
+    """
+
+    def __init__(self, timeout: float | None) -> None:
+        self.deadline: float | None
+        if timeout is None:
+            self.deadline = None
+        else:
+            self.deadline = time.monotonic() + timeout
+
+    def timeout(self, *, raise_if_elapsed: bool = True) -> float | None:
+        """
+        Calculate a timeout from a deadline.
+
+        Args:
+            raise_if_elapsed: Whether to raise :exc:`TimeoutError`
+                if the deadline lapsed.
+
+        Raises:
+            TimeoutError: If the deadline lapsed.
+
+        Returns:
+            Time left in seconds or :obj:`None` if there is no limit.
+
+        """
+        if self.deadline is None:
+            return None
+        timeout = self.deadline - time.monotonic()
+        if raise_if_elapsed and timeout <= 0:
+            raise TimeoutError("timed out")
+        return timeout