// ---------------------------------------------------------------------
private async Task SetNumberOfThreads_NonBlocking()
{
label1.Text = "button clicked ... wait 3 sec";
await SyncOverAsyncDeadlock_Resolved_v1();
label1.Text = AsyncAndThreading.ThreadCount().ToString();
}
void SyncOverAsyncDeadlock_Resolved_TimeOut()
{
int timeout = 2;
label1.Text = $"unresponsive for {timeout} seconds";
var t = AsyncAndThreading.Simulate();
t.Wait(TimeSpan.FromSeconds(timeout));
label1.Text = $"responsive again";
}
static IEnumerable <Task <string> > SourceTasks_pg_163_2()
{
Task <string> task1 = AsyncAndThreading.ReadFileAsync(false);
Task <string> task2 = AsyncAndThreading.ReadFileAsync(false, @"C:\Users\Henrique-private\Desktop\demo2.txt");
Task <string> task3 = AsyncAndThreading.ReadFileAsync(false, @"C:\Users\Henrique-private\Desktop\demo3.txt");
List <Task <string> > tasksList = new List <Task <string> >();
tasksList.Add(task1);
tasksList.Add(task2);
tasksList.Add(task3);
var tasksArray = tasksList.ToArray();
return(tasksArray);
}
private void button1_Click(object sender, EventArgs e)
{
var execCtx = AsyncAndThreading.GetExecutionContext();
int threadId = AsyncAndThreading.GetThreadId();
// reason 2: deadlock
//SyncOverAsyncDeadlock();
//SyncOverAsyncDeadlock_Resolved_TimeOut();
//await SetNumberOfThreads_NonBlocking();
// reason 3: resources
Task <double> res = AsyncAndThreading.ComputeValueAsync();
label1.Text = res.Result.ToString();
}
private static async Task <string> _157_AvoidRunningCtxAwareOnContextFree()
{
var res = await AsyncAndThreading.ReadFileAsync(true);
return(res);
}
async Task SyncOverAsyncDeadlock_Resolved_v1()
{
await AsyncAndThreading.Simulate(3);
}
// ---------------------------------------------------------------------
void SyncOverAsyncDeadlock()
{
var t = AsyncAndThreading.Simulate();
t.Wait();
}
