LAS/device/dev_mng.py

import threading
from threading import Lock
import queue
import json
import traceback
from collections import deque
from typing import Optional, List
import time

from common.sys_comm import LOGDBG, LOGINFO, LOGWARN, LOGERR
from common.sys_comm import (
    get_utc_time_ms, get_utc_time_s,
    get_bj_time_ms, get_bj_time_s,
    utc_to_bj_s)
from common.sys_comm import g_sys_conf, g_sys_conf_mtx


# 跟踪区域类
class TrackingRegion:
    def __init__(self, x1=0, y1=0, z1=0, x2=0, y2=0, z2=0):
        # 线程锁
        self.lock_ = threading.Lock()
        self.start_x: int = x1
        self.start_y: int = y1
        self.start_z: int = z1
        self.stop_x: int = x2
        self.stop_y: int = y2
        self.stop_z: int = z2


    def __repr__(self):
        return (f"TrackingRegion(start=({self.start_x}, {self.start_y}, {self.start_z}), "
                f"stop=({self.stop_x}, {self.stop_y}, {self.stop_z}))")


# 安装参数类
class InstallParam:
    def __init__(self, mount_plain="", height=0, tracking_region=None):
        # 线程锁
        self.lock_ = threading.Lock()
        self.mount_plain: str = mount_plain
        self.isCeiling: int = 1
        self.height = height
        self.tracking_region = tracking_region if tracking_region else TrackingRegion()
        self.north_angle_: float = 0

    def __repr__(self):
        return (f"InstallParam(mount_plain='{self.mount_plain}', isCeiling={self.isCeiling}, "
                f"height={self.height}, north_angle={self.north_angle_}, "
                f"tracking_region={repr(self.tracking_region)})")


# 网络参数类
class Network:
    def __init__(self, ssid="", password="", ip=""):
        # 线程锁
        self.lock_ = threading.Lock()
        self.ssid = ssid
        self.password = password
        self.ip = ip


    def set_ssid(self, ssid:str):
        with self.lock_:
            self.ssid = ssid

    def set_password(self, password:str):
        with self.lock_:
            self.password = password

    def set_ip(self, ip:str):
        with self.lock_:
            self.ip = ip

    def __repr__(self):
        return f"Network(ssid='{self.ssid}', password='{self.password}' , ip='{self.ip}')"


class Device():
    def __init__(self,
                 dev_id: str = "",
                 dev_name: str = "",
                 online: int = 0,
                 dev_type: str = "",
                 network: Network = None,
                 install_param: InstallParam = None):
        # 线程锁
        self.lock_ = Lock()
        # 基本属性
        self.dev_id_        = dev_id
        self.dev_name_      = dev_name
        self.online_        = online
        self.dev_type_      = dev_type
        self.network_       = network if network else Network()
        self.install_param_ = install_param if install_param else InstallParam()

        self.keepalive_: int    = get_utc_time_s()

        # 实时数据队列
        self.rtd_len_: int = 100
        self.rtd_que_: deque = deque(maxlen=self.rtd_len_)
        """
{
    "timestamp": 1727323744093,
    "pose": 2,
    "target_point": [
        [
            0.15537149991307939,
            -0.17245136840002878,
            0.5702038151877267,
            1
        ],
        [
            0.15537149991307939,
            -0.17245136840002878,
            0.5702038151877267,
            2
        ]
    ]
}
        """

    # 插入新的rtd单元
    def put_rtd_unit(self, rtd_unit: object):
        """
        插入新的点云数据，超过最大长度自动丢弃旧数据
        """
        with self.lock_:
            self.rtd_que_.append(rtd_unit)

    # 获取最新的rtd_que_
    def get_last_rtd_que(self) -> list:
        """
        获取当前最新的点云数据（全部缓存）
        """
        with self.lock_:
            return list(self.rtd_que_)

    # 获取rtd单元
    def get_rtd_unit(self, index: int):
        with self.lock_:
            if not self.rtd_que_:
                return None
            try:
                return self.rtd_que_[index]
            except IndexError:
                return None

    # 获取最新的rtd单元
    def get_last_rtd_unit(self) -> object:
        with self.lock_:
            if self.rtd_que_:
                return self.rtd_que_[-1]
            return None

    # 获取 rtd_que_ 的副本
    def get_rtd_que_copy(self) -> list:
        with self.lock_:
            return list(self.rtd_que_)


    def update_keepalive(self):
        with self.lock_:
            self.keepalive_ = get_utc_time_s()

    def update_keepalive(self, now:int):
        with self.lock_:
            self.keepalive_ = now

    def get_keepalive(self):
        with self.lock_:
            return self.keepalive_


class DeviceManager():
    def __init__(self):
        self.g_dev_map_lock = threading.Lock()
        self.g_dev_map = {}  # <dev_id: str, device: Device>

        self.HEARTBEAT_TIMEOUT  = 3600 * 24 # 超长保活时间

        self.running_ = False
        self.thread_ = None

    def push_dev_map(self, dev_id:str, dev_instance:Device):
        with self.g_dev_map_lock:
            self.g_dev_map[dev_id] = dev_instance

    def pop_dev_map(self, dev_id: str):
        with self.g_dev_map_lock:
            return self.g_dev_map.pop(dev_id, None)

    def find_dev_map(self, dev_id: str):
        with self.g_dev_map_lock:
            return self.g_dev_map.get(dev_id, None)

    def delete_dev_map(self, dev_id: str):
        with self.g_dev_map_lock:
            if dev_id in self.g_dev_map:
                del self.g_dev_map[dev_id]
                return True
            return False

    def list_all_dev(self,) -> List["Device"]:
        with self.g_dev_map_lock:
            return list(self.g_dev_map.values())


    # ------------------- 心跳检测相关 -------------------
    def _heartbeat_monitor(self):
        """后台线程：定时检查设备是否失活"""
        while self.running_:
            time.sleep(30)
            now = int(time.time())
            with self.g_dev_map_lock:
                for dev_id, device in list(self.g_dev_map.items()):
                    last_keepalive = device.get_keepalive()
                    if now - last_keepalive > self.HEARTBEAT_TIMEOUT:
                        
                        # device.online_ = 0    # 标记掉线
                        
                        del self.g_dev_map[dev_id]  # 直接销毁实例
                        LOGINFO(f"[WARN] Device {dev_id} heartbeat timeout destroy")

    def start(self):
        if not self.running_:
            self.running_ = True
            self.thread_ = threading.Thread(target=self._heartbeat_monitor, daemon=True)
            self.thread_.start()
            LOGINFO("[INFO] DeviceManager heartbeat task start")

    def stop(self):
        if self.running_:
            self.running_ = False
            if self.thread_:
                self.thread_.join()
            LOGINFO("[INFO] DeviceManager heartbeat task stop")


    # 回调函数，处理查询结果：查询所有的设备信息
    def cb_handle_query_all_dev_info(self, result, userdata):
        try:
            if result:
                for row in result:
                    dev_id = row["client_id"]
                    dev_instance = Device(
                        dev_id=row["client_id"],
                        dev_name=row["dev_name"],
                        online=row["online"],
                        dev_type=row["dev_type"]
                    )
                    # 更新设备信息
                    self.push_dev_map(dev_id, dev_instance)
    
                LOGDBG(f"cb_handle_query_all_dev_info succeed")
            else:
                LOGDBG("cb_handle_query_all_dev_info, invalid result")
    
        except json.JSONDecodeError as e:
            tb_info = traceback.extract_tb(e.__traceback__)
            for frame in tb_info:
                LOGERR(f"[{frame.filename}:{frame.lineno}] @{frame.name}(), error:{e}, {e.doc}")
        except Exception as e:
            tb_info = traceback.extract_tb(e.__traceback__)
            for frame in tb_info:
                LOGERR(f"[{frame.filename}:{frame.lineno}] @{frame.name}(), error: {e}")


g_dev_mgr: DeviceManager = None
def init_dev_mng():
    global g_dev_mgr
    g_dev_mgr = DeviceManager()