1.增加CancellationToken用于任务取消

2.修复在多任务执行情况下因取消或覆盖任务导致的调用bug

src/DotXxlJob.Core/Model/JobExecuteContext.cs

@@ -1,13 +1,17 @@
+using System.Threading;
+
 namespace DotXxlJob.Core.Model
 {
     public class JobExecuteContext
     {
-        public JobExecuteContext(IJobLogger jobLogger,string jobParameter)
+        public JobExecuteContext(IJobLogger jobLogger, string jobParameter, CancellationToken cancellationToken)
         {
             this.JobLogger = jobLogger;
             this.JobParameter = jobParameter;
+            this.cancellationToken = cancellationToken;
         }
         public string JobParameter { get; }
         public IJobLogger JobLogger { get; }
+        public CancellationToken cancellationToken { get; }
     }
 }

src/DotXxlJob.Core/Queue/JobTaskQueue.cs

@@ -8,7 +8,7 @@ using Microsoft.Extensions.Logging;
 
 namespace DotXxlJob.Core
 {
-    public class JobTaskQueue:IDisposable
+    public class JobTaskQueue : IDisposable
     {
         private readonly IJobLogger _jobLogger;
         private readonly ILogger<JobTaskQueue> _logger;
@@ -16,7 +16,7 @@ namespace DotXxlJob.Core
         private readonly ConcurrentDictionary<long, byte> ID_IN_QUEUE = new ConcurrentDictionary<long, byte>();
         private CancellationTokenSource _cancellationTokenSource;
         private Task _runTask;
-        public JobTaskQueue(ITaskExecutor executor,IJobLogger jobLogger,ILogger<JobTaskQueue> logger)
+        public JobTaskQueue(ITaskExecutor executor, IJobLogger jobLogger, ILogger<JobTaskQueue> logger)
         {
             this.Executor = executor;
             this._jobLogger = jobLogger;
@@ -33,7 +33,7 @@ namespace DotXxlJob.Core
 
         public bool IsRunning()
         {
-            return _cancellationTokenSource !=null;
+            return _cancellationTokenSource != null;
         }
 
 
@@ -44,11 +44,11 @@ namespace DotXxlJob.Core
         /// <returns></returns>
         public ReturnT Replace(TriggerParam triggerParam)
         {
-            Stop();
             while (!TASK_QUEUE.IsEmpty)
             {
                 TASK_QUEUE.TryDequeue(out _);
             }
+            Stop();
             ID_IN_QUEUE.Clear();
 
             return Push(triggerParam);
@@ -56,9 +56,9 @@ namespace DotXxlJob.Core
 
         public ReturnT Push(TriggerParam triggerParam)
         {
-           if(!ID_IN_QUEUE.TryAdd(triggerParam.LogId,0))
+            if (!ID_IN_QUEUE.TryAdd(triggerParam.LogId, 0))
             {
-               _logger.LogWarning("repeat job task,logId={logId},jobId={jobId}",triggerParam.LogId,triggerParam.JobId);
+                _logger.LogWarning("repeat job task,logId={logId},jobId={jobId}", triggerParam.LogId, triggerParam.JobId);
                 return ReturnT.Failed("repeat job task!");
             }
 
@@ -81,17 +81,17 @@ namespace DotXxlJob.Core
 
         public void Dispose()
         {
-           Stop();
             while (!TASK_QUEUE.IsEmpty)
             {
                 TASK_QUEUE.TryDequeue(out _);
             }
             ID_IN_QUEUE.Clear();
+            Stop();
         }
 
         private void StartTask()
         {
-           if (_cancellationTokenSource != null )
+            if (_cancellationTokenSource != null)
             {
                 return; //running
             }
@@ -118,17 +118,17 @@ namespace DotXxlJob.Core
 
                         if (TASK_QUEUE.TryDequeue(out triggerParam))
                         {
-                           if (!ID_IN_QUEUE.TryRemove(triggerParam.LogId,out _))
+                            if (!ID_IN_QUEUE.TryRemove(triggerParam.LogId, out _))
                             {
                                 _logger.LogWarning("remove queue failed,logId={logId},jobId={jobId},exists={exists}"
-                                   ,triggerParam.LogId,triggerParam.JobId,ID_IN_QUEUE.ContainsKey(triggerParam.LogId));
+                                    , triggerParam.LogId, triggerParam.JobId, ID_IN_QUEUE.ContainsKey(triggerParam.LogId));
                             }
                            //set log file;
-                           _jobLogger.SetLogFile(triggerParam.LogDateTime,triggerParam.LogId);
+                           _jobLogger.SetLogFile(triggerParam.LogDateTime, triggerParam.LogId);
 
-                           _jobLogger.Log("<br>----------- xxl-job job execute start -----------<br>----------- Param:{0}" ,triggerParam.ExecutorParams);
+                            _jobLogger.Log("<br>----------- xxl-job job execute start -----------<br>----------- Param:{0}", triggerParam.ExecutorParams);
 
-                           result = await Executor.Execute(triggerParam);
+                            result = await Executor.Execute(triggerParam, ct);
 
                             _jobLogger.Log("<br>----------- xxl-job job execute end(finish) -----------<br>----------- ReturnT:" + result.Code);
                         }
@@ -139,21 +139,20 @@ namespace DotXxlJob.Core
                     }
                     catch (Exception ex)
                     {
-                       result = ReturnT.Failed("Dequeue Task Failed:"+ex.Message);
+                        result = ReturnT.Failed("Dequeue Task Failed:" + ex.Message);
                         _jobLogger.Log("<br>----------- JobThread Exception:" + ex.Message + "<br>----------- xxl-job job execute end(error) -----------");
                     }
 
-                   if(triggerParam !=null)
+                    if (triggerParam != null)
                     {
-                       CallBack?.Invoke(this,new HandleCallbackParam(triggerParam, result??ReturnT.FAIL));
+                        CallBack?.Invoke(this, new HandleCallbackParam(triggerParam, result ?? ReturnT.FAIL));
                     }
 
                 }
 
 
-               _cancellationTokenSource.Dispose();
+                _cancellationTokenSource?.Dispose();
                 _cancellationTokenSource = null;
-
             }, _cancellationTokenSource.Token);
 
 

src/DotXxlJob.Core/TaskExecutors/BeanTaskExecutor.cs

@@ -1,3 +1,4 @@
+using System.Threading;
 using System.Threading.Tasks;
 using DotXxlJob.Core.Model;
 
@@ -6,12 +7,12 @@ namespace DotXxlJob.Core.TaskExecutors
     /// <summary>
     /// 实现 IJobHandler的执行器
     /// </summary>
-    public class BeanTaskExecutor:ITaskExecutor
+    public class BeanTaskExecutor : ITaskExecutor
     {
         private readonly IJobHandlerFactory _handlerFactory;
         private readonly IJobLogger _jobLogger;
 
-        public BeanTaskExecutor(IJobHandlerFactory handlerFactory,IJobLogger jobLogger)
+        public BeanTaskExecutor(IJobHandlerFactory handlerFactory, IJobLogger jobLogger)
         {
             this._handlerFactory = handlerFactory;
             this._jobLogger = jobLogger;
@@ -19,7 +20,7 @@ namespace DotXxlJob.Core.TaskExecutors
 
         public string GlueType { get; } = Constants.GlueType.BEAN;
 
-        public Task<ReturnT> Execute(TriggerParam triggerParam)
+        public Task<ReturnT> Execute(TriggerParam triggerParam, CancellationToken cancellationToken)
         {
             var handler = _handlerFactory.GetJobHandler(triggerParam.ExecutorHandler);
 
@@ -27,7 +28,7 @@ namespace DotXxlJob.Core.TaskExecutors
             {
                 return Task.FromResult(ReturnT.Failed($"job handler [{triggerParam.ExecutorHandler} not found."));
             }
-            var context = new JobExecuteContext(this._jobLogger, triggerParam.ExecutorParams);
+            var context = new JobExecuteContext(this._jobLogger, triggerParam.ExecutorParams, cancellationToken);
             return handler.Execute(context);
         }
     }

src/DotXxlJob.Core/TaskExecutors/ITaskExecutor.cs

@@ -1,3 +1,4 @@
+using System.Threading;
 using System.Threading.Tasks;
 using DotXxlJob.Core.Model;
 
@@ -7,6 +8,6 @@ namespace DotXxlJob.Core
     {
         string GlueType { get; }
 
-        Task<ReturnT> Execute(TriggerParam triggerParam);
+        Task<ReturnT> Execute(TriggerParam triggerParam, CancellationToken cancellationToken);
     }
 }