139 lines
5.6 KiB
Python
139 lines
5.6 KiB
Python
import threading
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from concurrent.futures import ThreadPoolExecutor, as_completed
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from typing import Dict, Tuple, List
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from Utils.LogManager import LogManager
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class ThreadManager:
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_tasks: Dict[str, Dict] = {}
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_lock = threading.Lock()
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@classmethod
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def add(cls, udid: str, thread: threading.Thread, event: threading.Event) -> Tuple[int, str]:
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"""
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添加一个线程到线程管理器。
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:param udid: 设备的唯一标识符
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:param thread: 线程对象
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:param event: 用于控制线程退出的 Event 对象
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:return: 状态码和信息
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"""
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with cls._lock:
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if udid in cls._tasks and cls._tasks[udid].get("running", False):
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LogManager.method_info(f"任务添加失败：设备 {udid} 已存在运行中的任务", method="task")
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return 400, f"该设备中已存在任务 {udid}"
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# 如果任务已经存在但已停止，清理旧任务记录
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if udid in cls._tasks and not cls._tasks[udid].get("running", False):
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LogManager.method_info(f"清理设备 {udid} 的旧任务记录", method="task")
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del cls._tasks[udid]
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# 添加新任务记录
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cls._tasks[udid] = {
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"thread": thread,
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"event": event,
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"running": True
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}
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LogManager.method_info(f"设备 {udid} 开始任务成功", method="task")
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return 200, f"创建任务成功 {udid}"
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@classmethod
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def stop(cls, udid: str) -> Tuple[int, str]:
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"""
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停止指定设备的线程。
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:param udid: 设备的唯一标识符
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:return: 状态码和信息
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"""
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with cls._lock:
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if udid not in cls._tasks or not cls._tasks[udid].get("running", False):
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LogManager.method_info(f"任务停止失败：设备 {udid} 没有执行相关任务", method="task")
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return 400, f"当前设备没有执行相关任务 {udid}"
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task = cls._tasks[udid]
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event = task["event"]
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thread = task["thread"]
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LogManager.method_info(f"设备 {udid} 的任务正在停止", method="task")
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# 设置停止标志位
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event.set()
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# 等待线程结束
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thread.join(timeout=5) # 可设置超时时间，避免阻塞
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# 清理任务记录
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del cls._tasks[udid] # 删除任务记录
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LogManager.method_info(f"设备 {udid} 的任务停止成功", method="task")
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return 200, f"当前任务停止成功 {udid}"
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@classmethod
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def batch_stop(cls, udids: List[str]) -> Tuple[int, List[str], str]:
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"""
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批量停止任务——瞬间下发停止信号，仍统计失败结果。
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返回格式与原接口 100% 兼容：
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(code, fail_list, msg)
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code=200 全部成功
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code=1001 部分/全部失败
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"""
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if not udids:
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return 200, [], "无设备需要停止"
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fail_list: List[str] = []
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# ---------- 1. 瞬间置位 event ----------
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with cls._lock:
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for udid in udids:
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task = cls._tasks.get(udid)
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if not task or not task.get("running"):
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# fail_list.append(f"设备{udid}停止失败：当前设备没有执行相关任务")
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continue
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task["event"].set() # 下发停止信号
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# ---------- 2. 并发等 0.2 s 收尾 ----------
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def _wait_and_clean(udid: str) -> Tuple[int, str]:
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with cls._lock:
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task = cls._tasks.get(udid)
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if not task:
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return 400, "任务记录已丢失"
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thread = task["thread"]
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# 第一次等 3 秒，让“分片睡眠”有机会退出
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thread.join(timeout=3)
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# 如果还活，再补 2 秒
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if thread.is_alive():
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thread.join(timeout=2)
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# 最终仍活，记录日志但不硬杀，避免僵尸
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with cls._lock:
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cls._tasks.pop(udid, None)
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if thread.is_alive():
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LogManager.warning(f"[batch_stop] 线程 5s 未退出，已清理记录但线程仍跑 {udid}")
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return 201, "已下发停止，线程超长任务未立即结束"
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return 200, "已停止"
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with ThreadPoolExecutor(max_workers=min(32, len(udids))) as executor:
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future_map = {executor.submit(_wait_and_clean, udid): udid for udid in udids}
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for future in as_completed(future_map):
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udid = future_map[future]
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try:
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code, reason = future.result()
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if code != 200:
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fail_list.append(f"设备{udid}停止失败：{reason}")
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except Exception as exc:
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fail_list.append(f"设备{udid}停止异常：{exc}")
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# ---------- 3. 返回兼容格式 ----------
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if fail_list:
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return 1001, fail_list, "部分设备停止失败"
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return 200, [], "全部设备停止成功"
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@classmethod
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def is_task_running(cls, udid: str) -> bool:
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"""
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检查任务是否正在运行。
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:param udid: 设备的唯一标识符
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:return: True 表示任务正在运行，False 表示没有任务运行
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"""
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with cls._lock:
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is_running = cls._tasks.get(udid, {}).get("running", False)
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LogManager.method_info(f"检查设备 {udid} 的任务状态：{'运行中' if is_running else '未运行'}", method="task")
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return is_running
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