137 lines
5.4 KiB
Python
137 lines
5.4 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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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 task and task.get("running"):
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task["event"].set()
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# ---------- 2. 单设备重试 5 次 ----------
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def _wait_and_clean_with_retry(udid: str) -> Tuple[int, List[str], str]:
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"""
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内部重试 5 次，最终返回格式与 batch_stop 完全一致：
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(code, fail_list, msg) fail_list 空表示成功
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"""
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for attempt in range(1, 6):
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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 200, [], "任务已不存在" # 成功
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thread = task["thread"]
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thread.join(timeout=5)
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still_alive = thread.is_alive()
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# 最后一次重试才清理记录
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if attempt == 5:
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with cls._lock:
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cls._tasks.pop(udid, None)
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if not still_alive:
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return 200, [], "已停止"
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LogManager.warning(f"[batch_stop] {udid} 第{attempt}/5 次停止未立即结束，重试", udid)
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# 5 次都失败
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LogManager.error(f"[batch_stop] {udid} 停止失败（5 次重试后线程仍活）", udid)
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return 1001, [udid], "部分设备停止失败"
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# ---------- 3. 并发执行 ----------
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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_with_retry, 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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code, sub_fail_list, sub_msg = future.result() # ← 现在解包正确
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if code != 200:
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fail_list.extend(sub_fail_list) # 收集失败 udid
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# ---------- 4. 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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