public async void Start()
{
IsExcuting = true;
List <Task> tasks = new List <Task>();
// await Task.Run(() =>
//{
for (int i = 0; i < Configs.RefreshThreadCount; i++)
{
tasks.Add(Task.Factory.StartNew(Excute, TaskCreationOptions.LongRunning));
//用Task.Run会变卡，可能是因为共用了线程;
//之前的方法会卡UI可能也是这个原因
//tasks.Add(Task.Run(() => Excute()));
await Task.Delay(500 / Configs.RefreshThreadCount);
}
//});
await Task.WhenAll(tasks);
TaskStopped?.Invoke(this, new EventArgs());
}
/// <summary>
/// 启动服务
/// </summary>
public async Task Start()
{
cts = new CancellationTokenSource();
await Task.Run(() =>
{
int times = 0;
TaskStarted?.Invoke(this, new TaskEventArgs(TaskName));
while (!cts.Token.IsCancellationRequested)
{
times++;
if (times *Interval >= TaskCheckInterval)
{
Log.Information($"{TaskName}正在运行");
times = 0;
}
Repository = new AppRepository();
lastTime = DateTime.Now;
try
{
Run();
}
catch (Exception ex)
{
Log.Error(ex, $"{TaskName}抛出异常");
}
try
{
Task.Delay(Interval).Wait(cts.Token);
}
catch (OperationCanceledException)
{
}
}
Log.Warning($"{TaskName}已取消");
TaskStopped?.Invoke(this, new TaskEventArgs(TaskName));
}, cts.Token);
}
private void CheckAndDo()
{
while (!stopping)
{
if (!tasks.IsEmpty)
{
if (!IsExcuting)
{
IsExcuting = true;
ProcessStatusChanged?.Invoke(this, new ProcessStatusChangedEventArgs(true));
}
if (tasks.Count > TasksMaxCount)
{
Stack <Action> temp = new Stack <Action>();
for (int i = 0; i < TasksMaxCount; i++)
{
if (tasks.TryPop(out Action act))
{
temp.Push(act);
}
}
tasks.Clear();
while (temp.Count > 0)
{
tasks.Push(temp.Pop());
}
}
Debug.WriteLineIf(DebugSwitch.TaskQueue, "Task count is " + tasks.Count);
List <Action> currentTasks = new List <Action>();
//后进来的先处理，每次处理n倍的线程数份，这样可以让后进来的尽快处理
for (int i = 0; i < Configs.RefreshThreadCount * 3; i++)
{
if (tasks.Count > 0)
{
if (tasks.TryPop(out Action act))
{
currentTasks.Add(act);
}
}
}
#if (SingleThread && DEBUG)
foreach (var task in currentTasks)
{
if (stopping)
{
break;
}
try
{
//执行任务
task();
}
catch (Exception ex)
{
}
}
#else
ParallelOptions opt = new ParallelOptions()
{
MaxDegreeOfParallelism = Configs.RefreshThreadCount
};
Parallel.ForEach(currentTasks, opt, (t2, e) =>
{
if (stopping)
{
e.Stop();
}
try
{
//执行任务
t2();
}
catch (Exception ex)
{
}
});
#endif
}
else
{
if (IsExcuting)
{
Debug.WriteLineIf(DebugSwitch.TaskQueue, "Task is empty");
IsExcuting = false;
ProcessStatusChanged?.Invoke(this, new ProcessStatusChangedEventArgs(false));
}
Thread.Sleep(500);
}
}
TaskStopped?.Invoke(this, new EventArgs());
IsExcuting = false;
}
protected virtual void OnTaskStopped()
{
TaskStopped?.Invoke(this);
}
private void OnTaskStopped()
{
TaskStopped?.Invoke(this, EventArgs.Empty);
}