C#在迭代之间等待的异步可取消轮询任务
示例
public class Foo
{
private const int TASK_ITERATION_DELAY_MS = 1000;
private CancellationTokenSource _cts;
public Foo()
{
this._cts= new CancellationTokenSource();
}
public void StartExecution()
{
Task.Factory.StartNew(this.OwnCodeCancelableTask_EveryNSeconds, this._cts.Token);
}
public void CancelExecution()
{
this._cts.Cancel();
}
/// <summary>
/// "Infinite" loop that runs every N seconds. Good for checking for a heartbeat or updates.
/// </summary>
/// <param name="taskState">The cancellation token from our _cts field, passed in the StartNew call</param>
private async void OwnCodeCancelableTask_EveryNSeconds(object taskState)
{
var token = (CancellationToken)taskState;
while (!token.IsCancellationRequested)
{
Console.WriteLine("Do the work that needs to happen every N seconds in this loop");
//如果您的任务被取消，则在此处传递令牌可以取消延迟。
await Task.Delay(TASK_ITERATION_DELAY_MS, token);
}
}
}
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