// a sample action for WorkerWithTaskScheduler constructor
public static void ExecuteMainLoop(WorkerWithTaskScheduler <TResult> worker)
{
while (!worker.ContinueExecution)
{
worker.Token.ThrowIfCancellationRequested();
worker.ExecutePendingTasks();
}
}
static async Task DoWorkAsync()
{
Console.WriteLine("Initial thread: " + Thread.CurrentThread.ManagedThreadId);
// the worker thread lambda
Func <WorkerWithTaskScheduler <int>, int> workAction = (worker) =>
{
var result = 0;
Console.WriteLine("Worker thread: " + Thread.CurrentThread.ManagedThreadId);
while (worker.ContinueExecution)
{
// observe cancellation
worker.Token.ThrowIfCancellationRequested();
// executed pending tasks scheduled with WorkerWithTaskScheduler.Run
worker.ExecutePendingTasks();
// do the work item
Thread.Sleep(200); // simulate work payload
result++;
Console.Write("\rDone so far: " + result);
if (result > 100)
{
break; // done after 100 items
}
}
return(result);
};
try
{
// cancel in 30s
var cts = new CancellationTokenSource(30000);
// start the worker
var worker = new WorkerWithTaskScheduler <int>(workAction, cts.Token);
// pause upon Enter
Console.WriteLine("\nPress Enter to pause...");
Console.ReadLine();
worker.WaitForPendingTasks = true;
// resume upon Enter
Console.WriteLine("\nPress Enter to resume...");
Console.ReadLine();
worker.WaitForPendingTasks = false;
// send a "message", i.e. run a lambda inside the worker thread
var response = await worker.Run(() =>
{
// do something in the context of the worker thread
return(Thread.CurrentThread.ManagedThreadId);
}, cts.Token);
Console.WriteLine("\nReply from Worker thread: " + response);
// End upon Enter
Console.WriteLine("\nPress Enter to stop...");
Console.ReadLine();
// worker.EndExecution() to get the result gracefully
worker.ContinueExecution = false; // or worker.Cancel() to throw
var result = await worker.WorkerTask;
Console.Write("\nFinished, result: " + result);
}
catch (Exception ex)
{
while (ex is AggregateException)
{
ex = ex.InnerException;
}
Console.WriteLine(ex.Message);
}
}
