构造函数:LongRunningTask(action, executingNode)
LongRunningTask
任务运行有时间限制或 CPU 限制的代码。LongRunningTask(Action action, IUANode executingNode);
参数
- action(Action)
- 要运行的方法或 lambda 表达式。
- executingNode(IUANode)
- 在其中运行代码的节点。
示例
myLongRunningTask
任务将使用 ProcessCsvFile()
方法处理 CSV 文件。此方法将任务本身作为参数,在读取 CSV 文件的每一行后都使用 IsCancellationRequested
属性检查该参数的状态。可以通过这种方法取消任务。using System.IO; // For using the StreamReader public class RuntimeNetLogic1 : BaseNetLogic { public override void Start() { // Insert code to be executed when the user-defined logic is started myLongRunningTask = new LongRunningTask(ProcessCsvFile, LogicObject); myLongRunningTask.Start(); } public override void Stop() { // Insert code to be executed when the user-defined logic is stopped myLongRunningTask.Dispose(); } private void ProcessCsvFile(LongRunningTask task) { // example method to read lines from a csv file using (var reader = new StreamReader("path/to/csv/file.csv")) { while (!reader.EndOfStream) { // Check whether task cancellation has been requested if (task.IsCancellationRequested) { // Properly handle task cancellation here return; } string line = reader.ReadLine(); // Process line } } } private LongRunningTask myLongRunningTask; }
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