e73a4da354
P1-19.1: Arc 边界测试强制 - TaskNode 新增 test_required 字段 - _inject_boundary_tests() 为每个模块注入接口测试和单元测试任务 - Done When 验证必须包含"测试通过" P1-19.2: AirRvr 高风险审计 - 新增 HighRiskAudit, HighRiskFinding 数据类 - ReviewReport 新增 highRiskAudit 字段，含 lifecycle/nullPointer/danglingPointer/exceptionSafety/concurrency + overallRisk + deliveryVerdict - 序列化/反序列化支持 P1-19.3: block-release 集成 - dispatch_worker_group() 派发前扫描最新审查报告 - deliveryVerdict=block-release 时阻止所有后续派发 - 记录 eng.blocked 事件 P1-20: frontend-design Skill 集成 - is_ui_task() UI 任务检测 - ensure_frontend_design_skill() 自动安装 Skill - route_ui_task() UI 任务路由决策 - enter_worker() 集成 UI 检测，skill 不可用时阻止执行 - commands/do.md 更新 UI 处理说明 - SKILL.md 新增 INV-12/INV-13/INV-14 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
45 lines
1.3 KiB
Python
45 lines
1.3 KiB
Python
"""
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文件级并发控制 — 解决 V1 P0-4 零并发控制问题。
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基于 fcntl.flock 的进程级文件锁，超时自动释放。
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"""
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from __future__ import annotations
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import fcntl
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import os
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import time
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from pathlib import Path
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class FileLock:
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"""基于 fcntl.flock(LOCK_EX | LOCK_NB) 的进程级文件锁"""
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def __init__(self, path: Path, timeout: float = 10.0):
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self._path = path.with_suffix(path.suffix + ".lock") if not path.suffix.endswith(".lock") else path
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self._timeout = timeout
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self._fd: int | None = None
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def __enter__(self) -> FileLock:
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self._fd = os.open(self._path, os.O_CREAT | os.O_RDWR)
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deadline = time.monotonic() + self._timeout
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while True:
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try:
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fcntl.flock(self._fd, fcntl.LOCK_EX | fcntl.LOCK_NB)
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return self
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except OSError:
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if time.monotonic() >= deadline:
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os.close(self._fd)
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self._fd = None
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raise TimeoutError(f"lock timeout after {self._timeout}s: {self._path}")
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time.sleep(0.1)
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def __exit__(self, *exc) -> None:
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if self._fd is not None:
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fcntl.flock(self._fd, fcntl.LOCK_UN)
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os.close(self._fd)
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self._fd = None
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@property
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def path(self) -> Path:
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return self._path
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