public MultithreadingSample()
{
int r = 0;
var tbl = new Table();
PackStart(tbl);
tbl.Add(new Label("Application.Invoke:"), 0, r);
tbl.Add(l1 = new Label("0"), 1, r);
tbl.Add(btn1 = new ToggleButton("Run"), 2, r++);
Task worker1;
CancellationTokenSource worker1cancel = new CancellationTokenSource();;
btn1.Toggled += delegate {
if (btn1.Active)
{
worker1cancel = new CancellationTokenSource();
worker1 = Task.Factory.StartNew(delegate {
int cnt = 0;
while (!worker1cancel.Token.IsCancellationRequested)
{
Thread.Sleep(50);
cnt++;
string txt = cnt.ToString();
Application.Invoke(() => l1.Text = txt);
}
}, worker1cancel.Token, TaskCreationOptions.LongRunning);
}
else
{
worker1cancel.Cancel();
}
};
tbl.Add(new Label("Application.UITaskScheduler:"), 0, r);
tbl.Add(l2 = new Label("0"), 1, r);
tbl.Add(btn2 = new ToggleButton("Run"), 2, r++);
Task worker2;
CancellationTokenSource worker2cancel = new CancellationTokenSource();;
btn2.Toggled += delegate {
if (btn2.Active)
{
worker2cancel = new CancellationTokenSource();
worker2 = Task.Factory.StartNew(delegate {
int cnt = 0;
while (!worker2cancel.Token.IsCancellationRequested)
{
Thread.Sleep(50);
cnt++;
var txt = cnt.ToString();
Task.Factory.StartNew(delegate {
l2.Text = txt;
}, worker2cancel.Token, TaskCreationOptions.None, Application.UITaskScheduler);
}
}, worker2cancel.Token, TaskCreationOptions.LongRunning);
}
else
{
worker2cancel.Cancel();
}
};
tbl.Add(new Label("BackgroundWorker:\n(XwtSynchronizationContext.Post)"), 0, r);
tbl.Add(l3 = new Label("0"), 1, r);
tbl.Add(btn3 = new ToggleButton("Run"), 2, r++);
var worker3 = new BackgroundWorker();
worker3.WorkerReportsProgress = true;
worker3.WorkerSupportsCancellation = true;
worker3.DoWork += BackgroundWorkerDoWork;
worker3.ProgressChanged += (sender, e) => l3.Text = e.ProgressPercentage.ToString();
btn3.Toggled += delegate {
if (btn3.Active)
{
worker3.RunWorkerAsync();
}
else
{
worker3.CancelAsync();
}
};
tbl.Add(new Label("XwtSynchronizationContext.Send:"), 0, r);
tbl.Add(l4 = new Label("0"), 1, r);
tbl.Add(btn4 = new ToggleButton("Run"), 2, r++);
worker4 = new SampleBGWorker();
worker4.SynchronizationContext = SynchronizationContext.Current;
worker4.InvokeSynchronized = true;
worker4.Count += HandleCount4;
btn4.Toggled += delegate {
if (btn4.Active)
{
worker4.Start();
}
else
{
worker4.Stop();
}
};
tbl.Add(new Label("ISynchronizeInvoke.BeginInvoke:"), 0, r);
tbl.Add(l5 = new Label("0"), 1, r);
tbl.Add(btn5 = new ToggleButton("Run"), 2, r++);
worker5 = new SampleBGWorker();
worker5.InvokeSynchronized = false;
worker5.Count += HandleCount5;
btn5.Toggled += delegate {
if (btn5.Active)
{
worker5.Start();
}
else
{
worker5.Stop();
}
};
tbl.Add(new Label("ISynchronizeInvoke.Invoke:"), 0, r);
tbl.Add(l6 = new Label("0"), 1, r);
tbl.Add(btn6 = new ToggleButton("Run"), 2, r++);
worker6 = new SampleBGWorker();
worker6.InvokeSynchronized = true;
worker6.Count += HandleCount6;
btn6.Toggled += delegate {
if (btn6.Active)
{
worker6.Start();
}
else
{
worker6.Stop();
}
};
}
public MultithreadingSample ()
{
int r = 0;
var tbl = new Table ();
PackStart (tbl);
tbl.Add (new Label("Application.Invoke:"), 0, r);
tbl.Add (l1 = new Label ("0"), 1, r);
tbl.Add (btn1 = new ToggleButton("Run"), 2, r++);
Task worker1;
CancellationTokenSource worker1cancel = new CancellationTokenSource ();;
btn1.Toggled += delegate {
if (btn1.Active) {
worker1cancel = new CancellationTokenSource ();
worker1 = Task.Factory.StartNew (delegate {
int cnt = 0;
while (!worker1cancel.Token.IsCancellationRequested) {
Thread.Sleep (50);
cnt++;
string txt = cnt.ToString ();
Application.Invoke (() => l1.Text = txt);
}
}, worker1cancel.Token, TaskCreationOptions.LongRunning);
}
else
worker1cancel.Cancel();
};
tbl.Add (new Label("Application.UITaskScheduler:"), 0, r);
tbl.Add (l2 = new Label ("0"), 1, r);
tbl.Add (btn2 = new ToggleButton("Run"), 2, r++);
Task worker2;
CancellationTokenSource worker2cancel = new CancellationTokenSource ();;
btn2.Toggled += delegate {
if (btn2.Active) {
worker2cancel = new CancellationTokenSource ();
worker2 = Task.Factory.StartNew (delegate {
int cnt = 0;
while (!worker2cancel.Token.IsCancellationRequested) {
Thread.Sleep (50);
cnt++;
var txt = cnt.ToString ();
Task.Factory.StartNew(delegate {
l2.Text = txt;
}, worker2cancel.Token, TaskCreationOptions.None, Application.UITaskScheduler);
}
}, worker2cancel.Token, TaskCreationOptions.LongRunning);
}
else
worker2cancel.Cancel();
};
tbl.Add (new Label("BackgroundWorker:\n(XwtSynchronizationContext.Post)"), 0, r);
tbl.Add (l3 = new Label ("0"), 1, r);
tbl.Add (btn3 = new ToggleButton("Run"), 2, r++);
var worker3 = new BackgroundWorker ();
worker3.WorkerReportsProgress = true;
worker3.WorkerSupportsCancellation = true;
worker3.DoWork += BackgroundWorkerDoWork;
worker3.ProgressChanged += (sender, e) => l3.Text = e.ProgressPercentage.ToString ();
btn3.Toggled += delegate {
if (btn3.Active)
worker3.RunWorkerAsync ();
else
worker3.CancelAsync ();
};
tbl.Add (new Label("XwtSynchronizationContext.Send:"), 0, r);
tbl.Add (l4 = new Label ("0"), 1, r);
tbl.Add (btn4 = new ToggleButton("Run"), 2, r++);
worker4 = new SampleBGWorker ();
worker4.SynchronizationContext = SynchronizationContext.Current;
worker4.InvokeSynchronized = true;
worker4.Count += HandleCount4;
btn4.Toggled += delegate {
if (btn4.Active)
worker4.Start ();
else
worker4.Stop ();
};
tbl.Add (new Label("ISynchronizeInvoke.BeginInvoke:"), 0, r);
tbl.Add (l5 = new Label ("0"), 1, r);
tbl.Add (btn5 = new ToggleButton("Run"), 2, r++);
worker5 = new SampleBGWorker ();
worker5.InvokeSynchronized = false;
worker5.Count += HandleCount5;
btn5.Toggled += delegate {
if (btn5.Active)
worker5.Start ();
else
worker5.Stop ();
};
tbl.Add (new Label("ISynchronizeInvoke.Invoke:"), 0, r);
tbl.Add (l6 = new Label ("0"), 1, r);
tbl.Add (btn6 = new ToggleButton("Run"), 2, r++);
worker6 = new SampleBGWorker ();
worker6.InvokeSynchronized = true;
worker6.Count += HandleCount6;
btn6.Toggled += delegate {
if (btn6.Active)
worker6.Start ();
else
worker6.Stop ();
};
}
