增加定时任务

JY.Model/Common/ScheduledTask.cs

@@ -0,0 +1,55 @@
+using System;
+using System.Collections.Concurrent;
+using System.Threading;
+
+namespace JY.Model.Common
+{
+    public class ScheduledTask : IDisposable
+    {
+        private Timer _timer;
+        private readonly TimerCallback _callback;
+        private readonly object _state;
+
+        public Guid TaskId { get; }
+        public int Interval { get; private set; } // 毫秒
+        public bool IsRunning { get; private set; }
+
+        public ScheduledTask(Guid taskId, TimerCallback callback, int interval, object state = null)
+        {
+            TaskId = taskId;
+            _callback = callback;
+            Interval = interval;
+            _state = state;
+            IsRunning = false;
+        }
+
+        public void Start()
+        {
+            if (IsRunning) return;
+            _timer = new Timer(_callback, _state, 0, Interval);
+            IsRunning = true;
+        }
+
+        public void ChangeInterval(int newInterval)
+        {
+            Interval = newInterval;
+            if (IsRunning && _timer != null)
+            {
+                _timer.Change(0, newInterval);
+            }
+        }
+
+        public void Stop()
+        {
+            if (!IsRunning) return;
+            _timer?.Change(Timeout.Infinite, Timeout.Infinite);
+            IsRunning = false;
+        }
+
+        public void Dispose()
+        {
+            Stop();
+            _timer?.Dispose();
+        }
+    }
+}

JY.Model/Common/TaskScheduler.cs

@@ -0,0 +1,78 @@
+using System;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace JY.Model.Common
+{
+    /// <summary>
+    /// 定时任务管理器
+    /// </summary>
+    public class TaskScheduler : IDisposable
+    {
+        private readonly ConcurrentDictionary<Guid, ScheduledTask> _tasks
+            = new ConcurrentDictionary<Guid, ScheduledTask>();
+
+        /// <summary>
+        /// 添加一个新任务
+        /// </summary>
+        public Guid AddTask(TimerCallback callback, int interval, object state = null)
+        {
+            var taskId = Guid.NewGuid();
+            var task = new ScheduledTask(taskId, callback, interval, state);
+            _tasks[taskId] = task;
+            task.Start();
+            return taskId;
+        }
+
+        /// <summary>
+        /// 移除一个任务
+        /// </summary>
+        public bool RemoveTask(Guid taskId)
+        {
+            if (_tasks.TryRemove(taskId, out var task))
+            {
+                task.Dispose();
+                return true;
+            }
+            return false;
+        }
+
+        /// <summary>
+        /// 修改任务间隔
+        /// </summary>
+        public bool ChangeInterval(Guid taskId, int newInterval)
+        {
+            if (_tasks.TryGetValue(taskId, out var task))
+            {
+                task.ChangeInterval(newInterval);
+                return true;
+            }
+            return false;
+        }
+
+        /// <summary>
+        /// 停止所有任务
+        /// </summary>
+        public void StopAll()
+        {
+            foreach (var task in _tasks.Values)
+            {
+                task.Stop();
+            }
+        }
+
+        public void Dispose()
+        {
+            StopAll();
+            foreach (var task in _tasks.Values)
+            {
+                task.Dispose();
+            }
+            _tasks.Clear();
+        }
+    }
+}

JY.Model/JY.Model.csproj

@@ -67,6 +67,8 @@
   <ItemGroup>
     <Compile Include="BL.Entity\Chart24HourData.cs" />
     <Compile Include="BL.Entity\RequestResult.cs" />
+    <Compile Include="Common\ScheduledTask.cs" />
+    <Compile Include="Common\TaskScheduler.cs" />
     <Compile Include="DB.Entity\AbnormalVoice.cs" />
     <Compile Include="DB.Entity\AlarmData.cs" />
     <Compile Include="DB.Entity\CamInfor.cs" />
@@ -93,8 +95,6 @@
     <None Include="app.config" />
     <None Include="packages.config" />
   </ItemGroup>
-  <ItemGroup>
-    <Folder Include="Common\" />
-  </ItemGroup>
+  <ItemGroup />
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
 </Project>

JY.Model/JY.Model.csproj.user

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <ProjectView>ProjectFiles</ProjectView>
+  </PropertyGroup>
+</Project>