增加摄像头列表增、改、删的本地化存储支持
This commit is contained in:
@@ -1,11 +1,8 @@
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namespace SHH.CameraSdk;
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/// <summary>
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/// [管理层] 视频源总控管理器 (V3.3.1 修复版)
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/// [管理层] 视频源总控管理器 (V3.5 持久化集成版)
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/// 核心职责:统一管理所有相机设备的生命周期、状态监控与资源清理,对接协调器实现自动自愈
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/// 核心修复:
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/// <para>1. [Bug γ] 二次伤害:强化销毁流程,防止 Dispose 阶段因 GC 乱序导致的非托管内存非法访问</para>
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/// <para>2. [Bug A/L] 继承之前的动态感知与末日销毁协同修复,保障多线程环境下的状态一致性</para>
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/// </summary>
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public class CameraManager : IDisposable, IAsyncDisposable
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{
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@@ -24,11 +21,24 @@ public class CameraManager : IDisposable, IAsyncDisposable
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private volatile bool _isDisposed;
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/// <summary>
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/// [Fix Bug A: 动态失效] 协调器引擎运行状态标记
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/// 使用 volatile 关键字确保多线程环境下的内存可见性,避免指令重排导致的状态不一致
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/// 协调器引擎运行状态标记
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/// 使用 volatile 关键字确保多线程环境下的内存可见性
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/// </summary>
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private volatile bool _isEngineStarted = false;
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// [新增] 存储服务引用
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private readonly IStorageService _storage;
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#endregion
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#region --- 构造函数 (Constructor) ---
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// [修改] 注入 IStorageService
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public CameraManager(IStorageService storage)
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{
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_storage = storage;
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}
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#endregion
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#region --- 2. 设备管理 (Device Management) ---
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@@ -39,29 +49,8 @@ public class CameraManager : IDisposable, IAsyncDisposable
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/// <param name="config">相机设备配置信息</param>
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public void AddDevice(VideoSourceConfig config)
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{
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//// [安全防护] 销毁过程中禁止添加新设备
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//if (_isDisposed) return;
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//// 防止重复添加同一设备
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//if (_cameraPool.ContainsKey(config.Id)) return;
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//// 1. 根据设备品牌实例化对应的驱动实现类
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//BaseVideoSource source = config.Brand switch
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//{
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// DeviceBrand.HikVision => new HikVideoSource(config),
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// _ => throw new NotSupportedException($"不支持的相机品牌: {config.Brand}")
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//};
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//// 2. [Fix Bug A] 动态激活逻辑:引擎已启动时,新设备直接标记为运行状态
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//if (_isEngineStarted)
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//{
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// source.IsRunning = true;
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//}
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//// 3. 将设备注册到内存池与协调器,纳入统一管理
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//if (_cameraPool.TryAdd(config.Id, source))
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//{
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// _coordinator.Register(source);
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//}
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// [安全防护] 销毁过程中禁止添加新设备
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if (_isDisposed) return;
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// 使用工厂方法创建
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var device = CreateDeviceInstance(config);
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@@ -69,93 +58,130 @@ public class CameraManager : IDisposable, IAsyncDisposable
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if (!_cameraPool.TryAdd(config.Id, device))
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{
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// 如果添加失败(ID冲突),由于 device 还没被使用,直接释放掉
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// 这里不需要 await,因为刚 new 出来的对象还没 connect
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device.DisposeAsync().AsTask().Wait();
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throw new InvalidOperationException($"设备 ID {config.Id} 已存在");
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}
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// 动态激活逻辑:引擎已启动时,新设备直接标记为运行状态
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if (_isEngineStarted)
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{
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device.IsRunning = true;
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}
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// [新增] 自动保存到文件
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SaveChanges();
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}
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/// <summary>
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/// 根据设备ID获取指定的视频源实例
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/// </summary>
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/// <param name="id">设备唯一标识</param>
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/// <returns>视频源实例 / 不存在则返回 null</returns>
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public BaseVideoSource? GetDevice(long id)
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=> _cameraPool.TryGetValue(id, out var source) ? source : null;
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/// <summary>
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/// 获取当前管理的所有相机设备
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/// </summary>
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/// <returns>设备实例集合</returns>
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public IEnumerable<BaseVideoSource> GetAllDevices()
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{
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return _cameraPool.Values.ToList();
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}
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/// <summary>
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/// 从管理池中移除指定设备并释放资源
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/// [修改] 异步移除设备 (从 RemoveDevice 改为 RemoveDeviceAsync)
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/// </summary>
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/// <param name="id">设备唯一标识</param>
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public void RemoveDevice(long id)
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public async Task RemoveDeviceAsync(long id)
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{
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if (_cameraPool.TryRemove(id, out var device))
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{
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// 记录日志
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System.Console.WriteLine($"[Manager] 正在移除设备 {id}...");
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Console.WriteLine($"[Manager] 正在移除设备 {id}...");
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// 1. 停止物理连接 (异步转同步等待,防止资源未释放)
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// 在实际高并发场景建议改为 RemoveDeviceAsync
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device.StopAsync().GetAwaiter().GetResult();
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// 1. 停止物理连接
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await device.StopAsync();
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// 2. 释放资源 (销毁非托管句柄)
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device.Dispose();
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// 2. 释放资源
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await device.DisposeAsync();
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System.Console.WriteLine($"[Manager] 设备 {id} 已彻底移除");
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Console.WriteLine($"[Manager] 设备 {id} 已彻底移除");
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// [新增] 自动保存到文件
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SaveChanges();
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}
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}
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// 为了兼容旧代码保留同步方法,但不推荐使用
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public void RemoveDevice(long id) => RemoveDeviceAsync(id).Wait();
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#endregion
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#region --- 3. 生命周期控制 (Engine Lifecycle) ---
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/// <summary>
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/// 启动视频管理引擎,初始化SDK并启动协调器自愈循环
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/// 启动视频管理引擎,加载配置,初始化SDK并启动协调器自愈循环
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/// </summary>
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public async Task StartAsync()
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{
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// 防护:已销毁则抛出异常
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if (_isDisposed) throw new System.ObjectDisposedException(nameof(CameraManager));
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// 防护:避免重复启动
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if (_isDisposed) throw new ObjectDisposedException(nameof(CameraManager));
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if (_isEngineStarted) return;
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// 1. 全局驱动环境预初始化:初始化厂商 SDK 运行环境
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// =========================================================
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// 1. [新增] 从文件加载设备配置
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// =========================================================
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try
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{
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Console.WriteLine("[Manager] 正在检查本地配置文件...");
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var savedConfigs = await _storage.LoadDevicesAsync();
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int loadedCount = 0;
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foreach (var config in savedConfigs)
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{
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// 防止ID冲突(虽然文件里理论上不重复)
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if (!_cameraPool.ContainsKey(config.Id))
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{
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var device = CreateDeviceInstance(config);
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// 默认设为运行状态,让协调器稍后去连接
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device.IsRunning = true;
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_cameraPool.TryAdd(config.Id, device);
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loadedCount++;
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}
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}
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if (loadedCount > 0)
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Console.WriteLine($"[Manager] 已从文件恢复 {loadedCount} 台设备配置");
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}
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catch (Exception ex)
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{
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Console.WriteLine($"[Manager] 加载配置文件警告: {ex.Message}");
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}
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// =========================================================
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// 2. 全局驱动环境预初始化
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// =========================================================
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HikSdkManager.Initialize();
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// 不要运行,手动运行
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//// 2. 激活现有设备池中所有设备的“运行意图”,触发设备连接流程
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//foreach (var source in _cameraPool.Values)
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//{
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// source.IsRunning = true;
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//}
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// 标记引擎启动状态,后续新增设备自动激活
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// 标记引擎启动状态
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_isEngineStarted = true;
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// 3. 启动协调器后台自愈循环(标记为 LongRunning 提升调度优先级)
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// =========================================================
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// 3. 启动协调器后台自愈循环
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// =========================================================
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_ = Task.Factory.StartNew(
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() => _coordinator.RunCoordinationLoopAsync(_globalCts.Token),
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_globalCts.Token,
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TaskCreationOptions.LongRunning,
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TaskScheduler.Default);
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System.Console.WriteLine($"[CameraManager] 引擎启动成功,当前管理 {_cameraPool.Count} 路相机设备。");
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// 这里传递 _cameraPool 给协调器(如果协调器是独立引用的,可能需要 Register 逻辑,
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// 但根据您的代码,协调器似乎是依赖外部注册或共享引用的。
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// *注意*:如果 Coordinator 需要显式注册,请在这里补上:
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foreach (var dev in _cameraPool.Values) _coordinator.Register(dev);
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Console.WriteLine($"[CameraManager] 引擎启动成功,当前管理 {_cameraPool.Count} 路相机设备。");
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await Task.CompletedTask;
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}
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/// <summary>
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/// 获取当前所有相机的全局状态简报
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/// </summary>
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/// <returns>包含设备ID、IP、运行状态的元组集合</returns>
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public IEnumerable<(long Id, string Ip, VideoSourceStatus Status)> GetGlobalStatus()
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{
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return _cameraPool.Values.Select(v => (v.Id, v.Config.IpAddress, v.Status));
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@@ -168,7 +194,6 @@ public class CameraManager : IDisposable, IAsyncDisposable
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/// <summary>
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/// 获取所有相机的健康度报告
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/// </summary>
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/// <returns>相机健康度报告集合</returns>
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public IEnumerable<CameraHealthReport> GetDetailedTelemetry()
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{
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return _cameraPool.Values.Select(cam => new CameraHealthReport
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@@ -177,28 +202,24 @@ public class CameraManager : IDisposable, IAsyncDisposable
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Ip = cam.Config.IpAddress,
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Status = cam.Status.ToString(),
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LastError = cam.Status == VideoSourceStatus.Faulted ? "设备故障或网络中断" : "运行正常"
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// 扩展:可补充 RealFps/DropFrames/ReconnectCount 等指标
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});
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}
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/// <summary>
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/// [新增] 获取全量相机实时遥测数据快照
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/// 用于 WebAPI 实时监控大屏展示
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/// 获取全量相机实时遥测数据快照 (MonitorController 使用)
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/// </summary>
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/// <returns>相机遥测数据快照集合</returns>
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public IEnumerable<CameraTelemetryInfo> GetTelemetrySnapshot()
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{
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// 立即物化列表,防止枚举过程中集合被修改导致异常
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return _cameraPool.Values.Select(cam =>
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{
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// 健康度评分算法(示例):基于设备状态与实时帧率综合判定
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// 健康度评分算法
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int healthScore = 100;
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if (cam.Status == VideoSourceStatus.Faulted)
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healthScore = 0;
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else if (cam.Status == VideoSourceStatus.Reconnecting)
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healthScore = 60;
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else if (cam.RealFps < 1.0 && cam.Status == VideoSourceStatus.Playing)
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healthScore = 40; // 有连接状态但无有效流
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healthScore = 40;
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return new CameraTelemetryInfo
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{
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@@ -208,12 +229,11 @@ public class CameraManager : IDisposable, IAsyncDisposable
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Status = cam.Status.ToString(),
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IsOnline = cam.IsPhysicalOnline,
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Fps = cam.RealFps,
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Bitrate = cam.RealBitrate, // [新增] 映射基类属性
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Bitrate = cam.RealBitrate,
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TotalFrames = cam.TotalFrames,
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HealthScore = healthScore,
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LastErrorMessage = cam.Status == VideoSourceStatus.Faulted ? "设备故障或网络中断" : null,
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Timestamp = System.DateTime.Now,
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// [新增] 映射分辨率
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Timestamp = DateTime.Now,
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Width = cam.Width,
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Height = cam.Height,
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};
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@@ -227,9 +247,6 @@ public class CameraManager : IDisposable, IAsyncDisposable
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/// <summary>
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/// 智能更新设备配置 (含冷热分离逻辑)
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/// </summary>
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/// <param name="deviceId">设备唯一标识</param>
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/// <param name="dto">配置更新传输对象</param>
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/// <exception cref="KeyNotFoundException">设备不存在时抛出</exception>
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public async Task UpdateDeviceConfigAsync(long deviceId, DeviceUpdateDto dto)
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{
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if (!_cameraPool.TryGetValue(deviceId, out var device))
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@@ -242,7 +259,7 @@ public class CameraManager : IDisposable, IAsyncDisposable
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var oldConfig = device.Config;
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var newConfig = oldConfig.DeepCopy();
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// 3. 映射 DTO 值 (仅当不为空时修改)
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// 3. 映射 DTO 值
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if (dto.IpAddress != null) newConfig.IpAddress = dto.IpAddress;
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if (dto.Port != null) newConfig.Port = dto.Port.Value;
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if (dto.Username != null) newConfig.Username = dto.Username;
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@@ -250,10 +267,10 @@ public class CameraManager : IDisposable, IAsyncDisposable
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if (dto.ChannelIndex != null) newConfig.ChannelIndex = dto.ChannelIndex.Value;
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if (dto.StreamType != null) newConfig.StreamType = dto.StreamType.Value;
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if (dto.Name != null) newConfig.Name = dto.Name;
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if (dto.RenderHandle != null) newConfig.RenderHandle = (System.IntPtr)dto.RenderHandle.Value;
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if (dto.RenderHandle != null) newConfig.RenderHandle = (IntPtr)dto.RenderHandle.Value;
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if (dto.Brand != null) newConfig.Brand = (DeviceBrand)dto.Brand;
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// 4. 判定冷热更新
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// 核心参数变更 -> 冷重启
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bool needColdRestart =
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newConfig.IpAddress != oldConfig.IpAddress ||
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newConfig.Port != oldConfig.Port ||
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@@ -265,8 +282,6 @@ public class CameraManager : IDisposable, IAsyncDisposable
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if (needColdRestart)
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{
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device.AddAuditLog($"检测到核心参数变更,执行冷重启 (Reboot)");
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// 记录之前的运行状态
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bool wasRunning = device.IsRunning;
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// A. 彻底停止
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@@ -275,7 +290,7 @@ public class CameraManager : IDisposable, IAsyncDisposable
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// B. 写入新配置
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device.UpdateConfig(newConfig);
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// C. 如果之前是运行意图,则自动重启连接
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// C. 自动重启
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if (wasRunning) await device.StartAsync();
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}
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else
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@@ -285,146 +300,128 @@ public class CameraManager : IDisposable, IAsyncDisposable
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// A. 更新配置数据
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device.UpdateConfig(newConfig);
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// B. 在线应用策略 (无需断线)
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// B. 在线应用策略
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if (device.IsOnline)
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{
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var options = new DynamicStreamOptions
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{
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StreamType = dto.StreamType,
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RenderHandle = dto.RenderHandle.HasValue ? (System.IntPtr)dto.RenderHandle : null
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RenderHandle = dto.RenderHandle.HasValue ? (IntPtr)dto.RenderHandle : null
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};
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// 触发驱动层的 OnApplyOptions
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device.ApplyOptions(options);
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}
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}
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// [新增] 保存文件
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SaveChanges();
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}
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/// <summary>
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/// 全量替换更新 (兼容接口)
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/// </summary>
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public async Task UpdateDeviceAsync(int id, VideoSourceConfig newConfig)
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{
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if (!_cameraPool.TryGetValue(id, out var oldDevice))
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throw new KeyNotFoundException($"设备 #{id} 不存在");
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bool wasRunning = oldDevice.IsRunning ||
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oldDevice.Status == VideoSourceStatus.Playing ||
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oldDevice.Status == VideoSourceStatus.Connecting;
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Console.WriteLine($"[Manager] 正在更新设备 #{id},配置变更中...");
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try
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{
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await oldDevice.StopAsync();
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await oldDevice.DisposeAsync();
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}
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catch (Exception ex)
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{
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Console.WriteLine($"[Manager] 销毁旧设备时警告: {ex.Message}");
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}
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var newDevice = CreateDeviceInstance(newConfig);
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_cameraPool[id] = newDevice;
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Console.WriteLine($"[Manager] 设备 #{id} 实例已重建。");
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if (wasRunning)
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{
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await newDevice.StartAsync();
|
||||
}
|
||||
|
||||
// [新增] 保存文件
|
||||
SaveChanges();
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
#region --- 6. 资源清理 (Disposal) ---
|
||||
|
||||
/// <summary>
|
||||
/// 同步销毁:内部调用异步销毁逻辑,等待销毁完成
|
||||
/// </summary>
|
||||
public void Dispose() => DisposeAsync().AsTask().GetAwaiter().GetResult();
|
||||
|
||||
/// <summary>
|
||||
/// [修复 Bug L & Bug γ] 异步执行全局资源清理
|
||||
/// 严格遵循销毁顺序:停止任务 → 销毁设备 → 卸载SDK,防止非托管内存泄漏
|
||||
/// </summary>
|
||||
public async ValueTask DisposeAsync()
|
||||
{
|
||||
// 防护:避免重复销毁
|
||||
if (_isDisposed) return;
|
||||
// 标记为已销毁,禁止后续操作
|
||||
_isDisposed = true;
|
||||
_isEngineStarted = false;
|
||||
|
||||
try
|
||||
{
|
||||
// 1. 发送全局取消信号,立即停止协调器所有后台扫描任务
|
||||
_globalCts.Cancel();
|
||||
|
||||
// 2. [Fix Bug L] 锁定设备池快照并清空,防止并发修改导致异常
|
||||
var devices = _cameraPool.Values.ToArray();
|
||||
_cameraPool.Clear();
|
||||
|
||||
// 3. 并行销毁所有相机设备,释放设备持有的非托管资源
|
||||
var disposeTasks = devices.Select(async device =>
|
||||
{
|
||||
try { await device.DisposeAsync(); }
|
||||
catch { /* 隔离单个设备销毁异常,不影响其他设备 */ }
|
||||
catch { }
|
||||
});
|
||||
await Task.WhenAll(disposeTasks);
|
||||
|
||||
// 4. [Fix Bug γ: 二次伤害] 彻底卸载全局 SDK 环境
|
||||
// 加 try-catch 防护极端场景(如进程强制终止时 SDK 已被系统回收)
|
||||
try
|
||||
{
|
||||
HikSdkManager.Uninitialize();
|
||||
}
|
||||
catch
|
||||
{
|
||||
// 忽略卸载异常,保证销毁流程正常结束
|
||||
}
|
||||
catch { }
|
||||
}
|
||||
finally
|
||||
{
|
||||
// 释放取消令牌源资源
|
||||
_globalCts.Dispose();
|
||||
}
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
/// <summary>
|
||||
/// 更新设备配置(热重载)
|
||||
/// 流程:停止旧设备 -> 释放资源 -> 创建新设备 -> 替换引用 -> (可选)自动重启
|
||||
/// </summary>
|
||||
public async Task UpdateDeviceAsync(int id, VideoSourceConfig newConfig)
|
||||
{
|
||||
// 1. 检查设备是否存在
|
||||
if (!_cameraPool.TryGetValue(id, out var oldDevice))
|
||||
{
|
||||
throw new KeyNotFoundException($"设备 #{id} 不存在");
|
||||
}
|
||||
#region --- 7. 内部辅助 (Helpers) ---
|
||||
|
||||
// 2. 捕获旧状态(用于决定是否需要自动重启新设备)
|
||||
// 如果旧设备正在运行或尝试连接中,我们在更新后应该尝试恢复它
|
||||
bool wasRunning = oldDevice.IsRunning ||
|
||||
oldDevice.Status == VideoSourceStatus.Playing ||
|
||||
oldDevice.Status == VideoSourceStatus.Connecting;
|
||||
|
||||
// 获取旧的流控需求(如果希望更新配置后,之前的订阅依然生效,需要把需求搬过去)
|
||||
// 这里简化处理:更新配置通常意味着环境变了,我们选择清空旧订阅,让前端重新下发,或者你可以手动拷贝
|
||||
// var oldRequirements = oldDevice.Controller.GetCurrentRequirements();
|
||||
|
||||
Console.WriteLine($"[Manager] 正在更新设备 #{id},配置变更中...");
|
||||
|
||||
// 3. 【关键步骤】优雅停止并销毁旧实例
|
||||
// 必须先 Stop 再 Dispose,确保 SDK 句柄(如 lUserId, lRealPlayHandle)被释放
|
||||
try
|
||||
{
|
||||
await oldDevice.StopAsync(); // 停止取流
|
||||
await oldDevice.DisposeAsync(); // 注销登录、释放非托管资源
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
Console.WriteLine($"[Manager] 销毁旧设备时警告: {ex.Message}");
|
||||
// 继续执行,不要因为旧设备销毁失败阻断新配置的应用
|
||||
}
|
||||
|
||||
// 4. 使用新配置创建新实例
|
||||
// 建议将创建逻辑提取为私有方法 CreateDeviceInstance,避免与 AddDevice 代码重复
|
||||
var newDevice = CreateDeviceInstance(newConfig);
|
||||
|
||||
// 5. 原子替换 (ConcurrentDictionary 的索引器赋值是线程安全的)
|
||||
_cameraPool[id] = newDevice;
|
||||
|
||||
Console.WriteLine($"[Manager] 设备 #{id} 实例已重建。");
|
||||
|
||||
// 6. 状态恢复
|
||||
if (wasRunning)
|
||||
{
|
||||
Console.WriteLine($"[Manager] 检测到设备 #{id} 之前为运行状态,正在自动重启...");
|
||||
// 不等待 StartAsync 完成,避免阻塞 HTTP 请求太久
|
||||
// 如果希望前端看到转圈直到启动完成,则加上 await
|
||||
await newDevice.StartAsync();
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// [辅助工厂方法] 根据配置创建具体的驱动实例
|
||||
/// 请确保你的 AddDevice 方法也改为调用此方法,减少重复代码
|
||||
/// </summary>
|
||||
private BaseVideoSource CreateDeviceInstance(VideoSourceConfig config)
|
||||
{
|
||||
return config.Brand switch
|
||||
{
|
||||
DeviceBrand.HikVision => new HikVideoSource(config),
|
||||
// 如果你有大华或其他品牌,在这里扩展
|
||||
// DeviceBrand.Dahua => new DahuaVideoSource(config),
|
||||
_ => throw new NotSupportedException($"不支持的设备品牌: {config.Brand}")
|
||||
};
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// [新增] 触发异步保存 (Fire-and-Forget)
|
||||
/// 不阻塞当前 API 线程,让后台存储服务去排队写入
|
||||
/// </summary>
|
||||
private void SaveChanges()
|
||||
{
|
||||
try
|
||||
{
|
||||
var allConfigs = _cameraPool.Values.Select(d => d.Config).ToList();
|
||||
// 异步调用存储服务,不使用 await 以免阻塞 API 响应
|
||||
_ = _storage.SaveDevicesAsync(allConfigs);
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
Console.WriteLine($"[Manager] 触发保存失败: {ex.Message}");
|
||||
}
|
||||
}
|
||||
|
||||
#endregion
|
||||
}
|
||||
Reference in New Issue
Block a user