64 lines
2.7 KiB
C#
64 lines
2.7 KiB
C#
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using SHH.CameraSdk;
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/// <summary>
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/// 全局帧处理中心（静态类）
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/// 功能：接收驱动层的帧数据与决策，封装为处理任务并投递至处理管道，是驱动层与处理管道的桥梁
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/// 核心修复：初始化全链路追踪上下文并绑定到任务，避免空引用异常；管道满时记录丢弃日志并释放帧资源
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/// </summary>
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public static class GlobalProcessingCenter
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{
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#region --- 私有资源 (Private Resources) ---
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/// <summary> 全局帧处理管道实例 </summary>
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/// <remarks> 固定容量 50，采用 DropWrite 模式，生产端永不阻塞 </remarks>
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private static readonly ProcessingPipeline _pipeline = new ProcessingPipeline(capacity: 50);
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#endregion
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#region --- 核心任务提交 (Core Task Submission) ---
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/// <summary>
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/// 提交帧数据与决策到处理中心
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/// 功能：封装帧为处理任务，初始化追踪上下文，投递至管道；投递失败时记录丢弃日志并释放资源
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/// </summary>
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/// <param name="deviceId">产生帧的设备唯一标识</param>
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/// <param name="frame">待处理的智能帧数据</param>
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/// <param name="decision">帧处理决策（包含是否保留、分发目标等信息）</param>
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public static void Submit(long deviceId, SmartFrame frame, FrameDecision decision)
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{
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// 1. 初始化全链路追踪上下文：绑定决策信息，记录帧进入处理中心的初始日志
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var context = new FrameContext
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{
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FrameSequence = decision.Sequence,
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Timestamp = decision.Timestamp,
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IsCaptured = true,
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TargetAppIds = decision.TargetAppIds // 记录帧的分发目标列表
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};
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// 添加初始日志：标记帧由驱动层提交至处理中心
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context.AddLog("Driver: Submitted to Global Center");
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// 2. 封装为处理任务：关联设备ID、帧数据、决策、追踪上下文
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var task = new ProcessingTask
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{
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DeviceId = deviceId,
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Frame = frame,
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Decision = decision,
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Context = context // 绑定上下文，修复空引用问题
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};
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// 3. 尝试投递任务到处理管道
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if (!_pipeline.TrySubmit(task))
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{
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// 投递失败：管道已满，记录丢弃原因并更新上下文状态
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context.DropReason = "GlobalPipelineFull";
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context.IsCaptured = false;
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// 归档丢弃日志到全局遥测，用于问题排查
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GlobalTelemetry.RecordLog(decision.Sequence, context);
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// 释放帧资源：避免内存泄漏
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frame.Dispose();
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}
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}
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#endregion
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}
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